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Location:
Brisbane
Registered:
May 2004
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Who has a 4agte?
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Sun, 31 October 2004 00:51
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Hi, i'm in the middle of building a 4agte for my sprinter, and this is my first engine project on any car. It's been a very worthwhile learning experience and i'm sure im going to be doing similiar projects many times in the future.
However, I am just curious as to what the finished product will be like. How will the engine run compared to a factory turbo engine? What sort of engine note do they have? What power outputs have people achieved with varying set ups?
Haha sorry about all the questions, but i'm just getting anxious for my first taste of boost in the sprinter.
Cheers, Dan
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Location:
Perth
Registered:
September 2002
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Re: Who has a 4agte?
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Sun, 31 October 2004 04:28
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sold my 4agte to a member of this forums but when i had it, it made 250rwhp on about 16psi with a hks gt2510..
Wicked engine note, not farty or drony like a gze..
well worth it
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Location:
parra
Registered:
June 2003
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Re: Who has a 4agte?
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Sun, 31 October 2004 06:14
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yeah i like it!
195.5hp on 15psi with series 1 silvia t28...
fun to drive!
quieter than a gze.
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Location:
Sydney
Registered:
June 2004
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Re: Who has a 4agte?
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Sun, 31 October 2004 09:30
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not much of a 4a person, so i wanna know are these stock motors or 4ag with a turbo thrown on?
if its stock then what is the factory power output for them?
cheers
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Location:
Perth
Registered:
September 2004
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Re: Who has a 4agte?
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Mon, 01 November 2004 09:27
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fade-e:
4agte is a 4agze with the s/charger taken off, and a turbo put on
average stock power for a gze (different figures for different years) at the wheels is 90kw???? (some1 please correct me if im wrong) thats in a mr2/ae92/101 car...
ta
-bc
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Toymods Social Secretary
Location:
Sydney
Registered:
July 2002
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Re: Who has a 4agte?
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Mon, 01 November 2004 09:38
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typically the AFM version 4agze is about 15-20kW less than the later model MAP sensor versions from the AE101 and post 1991 Ae92.
Most people leave the internals of the GZE stock, as they are pretty damn strong from factory with *forged ceramic coated pistons. The factory management will also handle up to 15psi or so.
Most 4agte setups i have seen on the dyno yeild around 150-200kW atw, of course it all varies depending on how much boost, what turbo, cooler, ECU + tuning, etc etc
Its a worthwile conversion - the turbo will quieten that bloody noisy 4a.
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Location:
Inside a giant turbo (syd...
Registered:
June 2002
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Re: Who has a 4agte?
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Mon, 01 November 2004 11:18
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my 4agte sprinter with 3 inch steam pipe zorst from the turbo back with no cat and straight through muffler was HEAAAAAAAAAPPPPPPPSSSSSS quiter than my 4agze mr2 with 2.5inch extractors, glass pack muffler and hotdog thingo... Now my mr2 is 4agte with a 3inch dump on the same exhaust and sounds 100times better.
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Location:
Perth, WA
Registered:
February 2003
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Re: Who has a 4agte?
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Mon, 01 November 2004 12:55
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I have a Series 1 4AGZE with a rebuilt RB25 turbo (thrust bearing, steel internals), 2.5 inch exhaust from turbo back (with 2 resonators and a cannon style muffler), Wolf 3D version 2 ECU (old), and R33 Skyline factory intercooler - makes 145 rwhp @ 15psi (around 108 kW).
Looking at everyone else's here, it seems my car is underpowered - Bugger!
As for sound, is it quiet at idle, reasonably quiet at 60 kph, and gets drone-y at 80 kph and above. Drives really well, if a bit laggy.
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Location:
Sydney
Registered:
June 2004
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Re: Who has a 4agte?
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Mon, 01 November 2004 13:17
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why not leave the supercharge for the lag?
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Location:
Perth, WA
Registered:
February 2003
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Re: Who has a 4agte?
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Mon, 01 November 2004 14:07
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Well, when I bought the car it already had the supercharger removed, which means I drove it around for a fair while with a low compression NA motor - about as responsive as a wet sponge (or a 4AC!).
But do you mean a twin charge set up? Too complicated (costly) for not much gain - one day I'll get a ball bearing turbo which should sort out the lag.
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Location:
Inside a giant turbo (syd...
Registered:
June 2002
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Re: Who has a 4agte?
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Mon, 01 November 2004 14:14
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option... im running 9psi, stock computer, stock intercooler stock basically everything, leaky rb25 turbo 3 inch exhaust and i get 115rwkw. Ill be upgrading my turbo and cooler soon and expect 150+rwkws...
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Location:
Perth, WA
Registered:
February 2003
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Location:
Brisbane
Registered:
May 2004
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Re: Who has a 4agte?
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Mon, 01 November 2004 14:22
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Ok, considering people get such different results, what do you think a decent power output for this set up would be?
series 2 map sensored gze block and head
rb20 turbo (ceraminc turbine, steel compressor, non ball bearing)
100kw inlet manifold
400x300x76 "hybrid" fmic
gze injectors
steam pipe exhaust manifold with hpc coating in and out
stainless 3 inch dump pipe (with "screamer" pipe for the wastegate - don't know how much this helps)
3 inch exhaust, high flow cat, resonator, muffler
pod filter in a sort of cold air intake box im making
motec m4 ecu
Anyone know any quarter mile times as well?
Haha sorry im just getting really anxious!
Oh and feel free to thread highjack, I wouldn't mind this just turning into a general 4agte discussion.
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Location:
Brisbane
Registered:
May 2004
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Re: Who has a 4agte?
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Mon, 01 November 2004 14:28
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optionUP: maybe its worth looking into how ur plumbing is set up, and checking boost pressures before and after the i/c and at various other places (sort of a pain in the arse, but yer...). Some bad bends and restrictions could cut alot of power im guessing. This is what i've read in some decent turbocharging books regarding lower-than-expected outputs, but have yet to put into practice.
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Location:
Inside a giant turbo (syd...
Registered:
June 2002
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Re: Who has a 4agte?
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Mon, 01 November 2004 14:29
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i had similiar to that on my sprinter... the rb20 turbo is letting you down! it was my bottle neck. On 15psi on a microtech with BAD boost spiking (faulty actuator) i think i got around 135kw, so probably around 140-50 @ 15psi
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Location:
Brisbane
Registered:
May 2004
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Re: Who has a 4agte?
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Mon, 01 November 2004 14:30
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Haha yeah i've already come to terms with my turbo being the weak link. 140-150 rwkw? I'd be so happy with that. Thats gotta be somewhere in the vicinity of a 13.5 doesn't it? I should do a before and after on the dyno and the track 
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Location:
Perth, WA
Registered:
February 2003
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Re: Who has a 4agte?
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Mon, 01 November 2004 15:11
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White86, thanks for the tip.
I first of all had a RB20 turbo on my car, again at 15 psi made similar power to what I got now. I remember it came on boost hard from about 4 - 4500 rpm.
Wow you got a Motec - that should be able to get all the available power for you, and make it drivable and not too fuel hungry, I imagine.
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I supported Toymods
Location:
fairfield NSW
Registered:
January 2003
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Re: Who has a 4agte?
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Mon, 01 November 2004 17:57
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i have a 4agte
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Location:
Sydney
Registered:
June 2004
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Re: Who has a 4agte?
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Mon, 01 November 2004 21:21
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| optionUP wrote on Tue, 02 November 2004 01:07 |
But do you mean a twin charge set up? Too complicated (costly) for not much gain - one day I'll get a ball bearing turbo which should sort out the lag.
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exactly, have the supercharge for low to mid RPMs and a massive turbo for top end... thats what im looking at fo my TA22. its not so much for more power but rather better power response, ie, max power in shortest time
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Location:
Bundaberg, Qld.
Registered:
May 2002
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Re: Who has a 4agte?
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Mon, 01 November 2004 21:42
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my little T25 is keeping me happy for now, 142 rwhp @ 7psi. still running the 4agze ECU too.
i cant wait to get it on a dyno again one of these days if i dont break it, 12psi is making my butt dyno very happy. 
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Location:
Hobart
Registered:
August 2004
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Re: Who has a 4agte?
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Mon, 01 November 2004 22:40
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nice that is quite a bit of power at such a low boost!!
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Location:
Brisbane
Registered:
May 2004
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Re: Who has a 4agte?
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Tue, 02 November 2004 00:25
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optionUP: i hope the motec will deliver, i've been convinced to spend a fair bit more money on it for those very reasons.
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Location:
Brisbane
Registered:
July 2002
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Re: Who has a 4agte?
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Tue, 02 November 2004 00:46
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what sort of costs are these turbo setups costing?
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Location:
Brisbane
Registered:
May 2004
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Re: Who has a 4agte?
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Tue, 02 November 2004 01:00
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I think the cost would vary alot dependding on the set-up you want and how much work you can do yourself. Maybe you could get away with a budget set-up for $3000?, running the stock cooler and ecu, but upgrading the exhaust system. Aftermarket ecu's really jack up the price, considering most people can't install and tune them personally.
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Location:
Perth, WA
Registered:
February 2003
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Location:
Brisbane
Registered:
May 2004
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Location:
up yours!
Registered:
May 2002
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Re: Who has a 4agte?
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Tue, 02 November 2004 01:42
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4A's are a great little motor, ive sent some to hell and back with the only down side being the ring lance colapsing and the odd bearing saying its had enough..
My first set-up stock GZE bottom end, big port head, GT28 and ems, was good for 250hp and 320 with the nos, at the wheels.
New setup with the 20v is good for 400hp at the wheels now,
(but is not the cheapest option in the world)..
I still loved the 16v, awsome street runner with next to no lag and power all the way though..
yogi
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Location:
up yours!
Registered:
May 2002
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Re: Who has a 4agte?
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Tue, 02 November 2004 01:44
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4A's are a great little motor, ive sent some to hell and back with the only down side being the ring lance colapsing and the odd bearing saying its had enough..
My first set-up stock GZE bottom end, big port head, GT28 and ems, was good for 250hp and 320 with the nos, at the wheels.
New setup with the 20v is good for 400hp at the wheels now,
(but is not the cheapest option in the world)..
I still loved the 16v, awesome street runner with next to no lag and power all the way though..
yogi
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Location:
Brisbane
Registered:
July 2002
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Re: Who has a 4agte?
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Tue, 02 November 2004 03:18
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| optionUP wrote on Tue, 02 November 2004 12:27 |
If you get a workshop to do it (like I did) then expect to pay at least double that. Probably more like $8000 - $9000.
But, it also depends on how far you go. For me, I got an oil cooler fitted (parts alone cost $600) and also upgraded my fuel lines and got a surge tank fitted.
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you are being robbed of power somewhere
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Location:
Melbourne
Registered:
September 2002
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Re: Who has a 4agte?
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Tue, 02 November 2004 04:16
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How many of you guys are running the first gen/afm 4AGZE turbo setup?
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Location:
Perth, WA
Registered:
February 2003
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Re: Who has a 4agte?
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Tue, 02 November 2004 04:48
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Hmmm,
yes - but what is the culprit?
Could be the intercooler - fairly small, with poor air flow. But then these are fitted to Skyline GTS-T's that produce about 250 HP stock (although a 2.5 Ltr 6 cylinder would push out a lot more air than a 1.6 4, which would overcome the restrictions of the intercooler to an extent...?)
Could be the turbo - too big, given it's built for more airflow as mentioned above?
Could be intercooler piping - pipe I guess is 2 or 2.5 inch diameter, is fairly direct from compressor to front mounted intercooler to inlet manifold, although it has a u-shaped bend, positioned at the bottom of the bumper, where it flows into the intercooler.
The ECU - old and has not very fine adjustment for the tuning.
All of the above?
Don't get me wrong - the car is still a hoot to drive, but in a straight line from take off it doesn't feel fast anymore, now I've gotten used to it. I will have to have a chat with the guys in the workshop...
[Updated on: Tue, 02 November 2004 04:50]
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Location:
Brisbane
Registered:
May 2004
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Re: Who has a 4agte?
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Tue, 02 November 2004 05:01
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Mmmm i'd say all of the above are playing a part. Sort of what i was hinting at by checking boost pressures at various points.
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Location:
Brisbane
Registered:
July 2002
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Re: Who has a 4agte?
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Tue, 02 November 2004 05:30
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| optionUP wrote on Tue, 02 November 2004 15:48 |
Don't get me wrong - the car is still a hoot to drive, but in a straight line from take off it doesn't feel fast anymore, now I've gotten used to it. I will have to have a chat with the guys in the workshop...
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lol.. dont worry about that, my car has somewhere just over 200rwkw. I dont find it very fast at all though.. but anyone going in it for the 1st time shits themselves
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Location:
cambo
Registered:
May 2002
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Re: Who has a 4agte?
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Tue, 02 November 2004 05:53
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i would cry if i turboed my gze and it made less than 150KW@w.
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Location:
Canberra
Registered:
May 2002
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Re: Who has a 4agte?
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Tue, 02 November 2004 10:22
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Not all dynos are created equal
Mine has made quite substantially different figures on different dynos, different days.
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Location:
Inside a giant turbo (syd...
Registered:
June 2002
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Re: Who has a 4agte?
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Tue, 02 November 2004 10:31
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the turbo isnt too big! if anything its way too small!
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Location:
Adelaide
Registered:
November 2002
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Re: Who has a 4agte?
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Tue, 02 November 2004 11:36
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I got this for my 4agze, how much kw will i get??
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Location:
Brisbane
Registered:
May 2004
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Re: Who has a 4agte?
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Tue, 02 November 2004 13:39
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Haha, you're gze would fit inside that thing. The engine would be the turbo's little bitch...
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Location:
Bundaberg, Qld.
Registered:
May 2002
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Re: Who has a 4agte?
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Tue, 02 November 2004 13:49
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| Necros wrote on Tue, 02 November 2004 14:16 |
How many of you guys are running the first gen/afm 4AGZE turbo setup?
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the 1st 4agte i did was useing my aw11 4agze (AFM), the aw11 a2a i/c, T25 turbo @ 12psi and the 4agze ECU, a log style manifold i made myself. i spent no more than $1000 to do the whole thing. (it helps when you can do as much of it yourself as you possibly can, and have bits to steal of the original 4age).
i ended up melted the end off #4 spark plug which took a couple chunks out of the piston and scored the bore (this was after 9 months of abuse). unfortunatley i never got that one on a dyno to see what it was doing.
my current set-up (which that dyno graph i linked above is from) is my original 7 rib bigport 4age i rebuilt useing it's 9.4:1 cast pistons and about 2.6mm in total headgasket/s, same T25 @ 7 and 12psi (the dyno graph i linked above is only had 7psi as i didnt have my dual stage boost controler back in at the time), a GT4 ST205 w2a i/c core, still the 4agze ECU and my log manifold. i have totaly abused this engine for over a year now.
so i spose i spent approx another $1500 to to get this set-up running. (that includes a new clutch).
w/shops charge way to much for a turbo conversion. but then again if people are willing to pay that much, why not.....
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Location:
parra
Registered:
June 2003
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Toymods Social Secretary
Location:
Sydney
Registered:
July 2002
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Re: Who has a 4agte?
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Wed, 03 November 2004 12:00
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the costs for a turbo conversion on a 4agze usually go down like this:
# turbo $300-400
# turbo manifold $600
# Intercooler (usually FMIC) $400-500
# FMIC piping $500?
# 4age engine ancillaries (intake, a/c, ps, alternator etc) $200-300
# exhaust $300+
TOTAL: $2600.00
add about $500 for extra crap that always creeps up, and you have a total of $3-3.5k. This is getting workshops to do the non-bolt in stuff and you doing all the boltwork and purchasing 2nd hand.
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Location:
Brisbane
Registered:
May 2004
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Re: Who has a 4agte?
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Wed, 03 November 2004 13:13
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witzl, that seems like a fair enough break-down. although i'd like to know where i can get an exhaust for 300 bucks. most places i've checked out ask around 1000 for dump pipe, high flow cat, resonator, muffler and 3" pipes.
but yer, somewhere around the 3 grand mark seems like the entry price, and you can sort of option up from there where money allows.
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Location:
Perth, WA
Registered:
February 2003
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Re: Who has a 4agte?
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Wed, 03 November 2004 15:52
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OK, rough prices for my conversion (getting a workshop to do it all):
Turbo manifold + downpipe: $1350
Intercooler piping: $850
Remove TVIS from inlet manifold, weld up holes: $220
Oil + water lines for turbo; weld new oil return into sump: $550
Bosch fuel pump: $190
Fuel Pressure Regulator: $245
Dyno Tuning: $330
Misc bits: $500
Other parts I got:
External Oil Cooler: $660
2nd hand turbo: $500
Intercooler from a friend: Free!
Total cost: $5395
And then, about a month later...
fit surge tank and new 5/16" copper fuel lines - $700
Doesn't compare too badly I guess.
Of course, there were a couple of extra things like getting bigger injectors, getting them cleaned, getting the intercooler cleaned and pressure tested etc. - small stuf tht eats up a bit more money.
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I supported Toymods
Location:
Perth
Registered:
May 2002
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Re: Who has a 4agte?
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Wed, 03 November 2004 16:43
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May I ask why you spent a perfectly good $220 to remove the TVIS?
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Location:
Adelaide
Registered:
September 2003
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Re: Who has a 4agte?
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Wed, 03 November 2004 17:01
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| optionUP wrote on Thu, 04 November 2004 02:52 |
OK, rough prices for my conversion (getting a workshop to do it all):
Turbo manifold + downpipe: $1350
Intercooler piping: $850
Remove TVIS from inlet manifold, weld up holes: $220
Oil + water lines for turbo; weld new oil return into sump: $550
Bosch fuel pump: $190
Fuel Pressure Regulator: $245
Dyno Tuning: $330
Misc bits: $500
Other parts I got:
External Oil Cooler: $660
2nd hand turbo: $500
Intercooler from a friend: Free!
Total cost: $5395
And then, about a month later...
fit surge tank and new 5/16" copper fuel lines - $700
Doesn't compare too badly I guess.
Of course, there were a couple of extra things like getting bigger injectors, getting them cleaned, getting the intercooler cleaned and pressure tested etc. - small stuf tht eats up a bit more money.
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Fark me, you paid some pretty high prices there.
Oil cooler for $660 ??????
Copper fuel pipe & surge tank $700 ??????????????????????
TVIS mod - $220 ??????????
I'm glad you paid that, not me. Mind you, as long as you are happy, that is the main thing.
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Location:
Brisbane
Registered:
July 2002
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Re: Who has a 4agte?
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Wed, 03 November 2004 22:22
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| optionUP wrote on Thu, 04 November 2004 02:52 |
OK, rough prices for my conversion (getting a workshop to do it all):
Turbo manifold + downpipe: $1350
Intercooler piping: $850
Remove TVIS from inlet manifold, weld up holes: $220
Oil + water lines for turbo; weld new oil return into sump: $550
Bosch fuel pump: $190
Fuel Pressure Regulator: $245
Dyno Tuning: $330
Misc bits: $500
Other parts I got:
External Oil Cooler: $660
2nd hand turbo: $500
Intercooler from a friend: Free!
Total cost: $5395
And then, about a month later...
fit surge tank and new 5/16" copper fuel lines - $700
Doesn't compare too badly I guess.
Of course, there were a couple of extra things like getting bigger injectors, getting them cleaned, getting the intercooler cleaned and pressure tested etc. - small stuf tht eats up a bit more money.
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what was ur interercooler piping made out of
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Location:
Melbourne
Registered:
September 2002
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Re: Who has a 4agte?
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Wed, 03 November 2004 23:31
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What gearboxes and bellhousings are you guys using?
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I supported Toymods
Location:
Perth
Registered:
May 2002
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Re: Who has a 4agte?
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Thu, 04 November 2004 01:05
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| Jag7799 wrote on Thu, 04 November 2004 06:22 |
what was ur interercooler piping made out of
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Gold. Its the best heat reflector dude 
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Registered:
May 2002
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Re: Who has a 4agte?
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Thu, 04 November 2004 01:59
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I have a 4AGTE
| Quote: |
I am just curious as to what the finished product will be like
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My finished product is great, nice to drive, sounds good, reasonably quick.
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How will the engine run compared to a factory turbo engine?
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Mine runs as smoothly as any factory turbo engined vehicle I have been in. I find mine comes on full boost earlier than most factory vehicles too.
| Quote: |
What sort of engine note do they have?
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I think that mine sounds quite good for a 4 cylinder, no drone, no farty bumble-bee shit noise. Last time I went to the track I had a lot of people comment on how good my car sounded down the straight as it screamed through each gear.
| Quote: |
What power outputs have people achieved with varying set ups?
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Mine has been on several Dyno's (including the all mighty all accurate, only dyno some people believe in, Toymods Dyno Day Dyno  ) Mine always makes around 170rwkw plus or minus about 3kw on any given day. It is a 4AGZE (AFM/crank angle sensed model), T28 turbo (the baby one with 0.48 A/R exhaust housing), front mount intercooler, 2.5" exhaust etc.
It is not set up for drags what so ever (uber stiff suspension/coilovers etc more leaning towards something that can corner) but for fun I like to give it a run every now and then at WSID where it has run 12.8 over the 1/4, it has run the same times on a G-Tech too. traction of the line is an issue, but you learn how to launch it .
Back when mine was done the only other 4AGTE around was Yogis which we saw at Summernats many years ago. Since then the 4AGTE has taken off and is common as dirt 
Common now for a good reason, they are a brilliant package!
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Location:
Perth, WA
Registered:
February 2003
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Re: Who has a 4agte?
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Thu, 04 November 2004 15:51
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About removing the TVIS - to quote Michael's 4AGTE buildup article on this site's Tech Articles section:
With regards to the TVIS, when turbo charging you must remove this from the inlet manifold as boost pressures may cause the butterflies to warp, loosen and end up in the cylinder. But you would remove this anyhow as leaving it on only lessens the chance of gaining any decent hp.
$660 for an oil cooler? Well, it was a brand new 19-row cooler ($240), plus the cost of those pretty red/blue aluminium hose fittings is a killer - $42 for EACH angled connector, and I had to buy 4 (remote oil filter set up). Of course, I found out later that you can get brass ones MUCH cheaper from a hydraulics fittings shop (Pirtek or the like)...
Intercooler piping is Stainless Steel. Did I pay too much?
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I supported Toymods
Location:
Perth
Registered:
May 2002
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Re: Who has a 4agte?
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Fri, 05 November 2004 00:22
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1GGTE has TVIS, I sure as hell ain't disconnecting it!
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Location:
Sydney
Registered:
July 2003
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Re: Who has a 4agte?
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Fri, 05 November 2004 01:01
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I have A 4agte... It makes 145rwkw@14psi... that was after I changed the FMIC to a larger one and put in the lsd rear end...
I was Wondering how there could be a 30kw difference to the results posted by Ke383tg?? Im running a T28 also aswell as a 3" exhaust... whats the deal??? And what management are you running and who does your tunning? any other mods to the engine to help you reach thoswe levels? I want More POWER!!!!
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Registered:
May 2002
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Re: Who has a 4agte?
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Fri, 05 November 2004 01:35
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| Quote: |
I was Wondering how there could be a 30kw difference to the results posted by Ke383tg?? Im running a T28 also aswell as a 3" exhaust... whats the deal??? And what management are you running and who does your tunning? any other mods to the engine to help you reach thoswe levels? I want More POWER!!!!
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Of course the first thing people will say is different dynos different readings etc and so forth. But as I said, mine does the same numbers here in Canberra and in Sydney.
Now, my turbo is the "small" version of the T28 from a skyline GTR (it has been highflowed and has a larger comp wheel, but the exhaust wheel and housing are still the same size as standard). So as far as peak power goes mine runs out of efficiency at about the 170rwkw mark, winding more boost into it than that yields no more top end power. If I want more peak power I need to go for a bigger turbo . The only advantage of this sized turbo is boost response.
Between 16psi and about 20psi I see little to no change in the peak power value on the dyno, however the increase through the mid range power and to the torque curve of running the slightly higher boost makes it worthwhile in the pursuit of on-raod performance. At 16psi I have made about 165 rwkw and at 19psi on same dyno at the same time it only lifted the peak value to about 170rwkw (but with a massive gain in the mid range power)
I have a few friends here in Canberra with 4AGTE's and mine is at the lower end of the power that we are all making, eg:
Mine = 170rwkw (on about 18psi last time I dynoed it)
My brothers = 205rwkw (on about 18psi)
A mates = 165rwkw (on 12psi  )
**Another mate = 170rwkw (this particular car sounds like a similar setup to yours as far as turbo, exhaust, fmic go).
Another mate is nearing build completion and should be over 200rwkw also.
All of the above (bar one the one denoted with**) run Microtech's and all of the above bar one (**) are tuned by the same person. All bar one (**) have made these power outputs on the same dyno too.
Mine has been setup like this for a few years now too and the engine internals are untouched, drives like a factory car too.
I know I can unleash some more KW's from mine with a new larger turbo, larger exhaust and a larger (read thicker) front mount. But I love the way mine drives as it is, it has more power than you can get to the ground etc. So I think I will worry about the chase for more power a little later.
PM me if you want details of the tuner we use here in Canberra.
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Location:
Syndey
Registered:
December 2002
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Re: Who has a 4agte?
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Fri, 05 November 2004 02:36
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| fade-e wrote on Sun, 31 October 2004 20:30 |
not much of a 4a person, so i wanna know are these stock motors or 4ag with a turbo thrown on?
if its stock then what is the factory power output for them?
cheers
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i have turboed a 86kw bigport 4age the engine was totally stock using a TD04L off a 98 wrx, Microtech LT8, gze or 7m injectors, 3in ehxaust, made 187rwhp on 11psi and it is in a clubman and is circuit raced quite regually, no problems with the engine at all!!
Dale
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Location:
sydney
Registered:
December 2002
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Re: Who has a 4agte?
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Fri, 05 November 2004 09:51
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Since everyones talking bout figures
175rwkw@15psi
Garrett t28, front mount series 1 gze, goes like a rocket with endless hours of fun.
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Location:
Canberra
Registered:
May 2002
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Re: Who has a 4agte?
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Fri, 05 November 2004 13:54
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MYT-16V: What are the specs of your T28??
Anyone here running something other than standard cams?? I'm keen for a port cleanup & perhaps 272 degree inlet & exhaust, with a little more lift than standard. And a bigger turbo of course as mine has the same characteristics as KE382TG, more boost only equals more midrange, no gain at the top.
Cheers
Phil
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Location:
sydney
Registered:
December 2002
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Re: Who has a 4agte?
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Sat, 06 November 2004 10:34
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The T28 a/r 60 front and 0.64 rear, don't know where it's from, looks like S15 but i'm not sure if it's a ball bearing or not.
Cams are stock, the only thing thats been done to the motor is rebuild with new bearings etc. and metal head gasket. But i'm keen on some cams aswell maybe a GT 2540 or the like.
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Location:
Brisbane
Registered:
May 2004
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Re: Who has a 4agte?
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Sun, 07 November 2004 00:08
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ke382TG, those boost pressures seem fairly high. I was never considering running over about 12-13 psi with the rb20 turbo.
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Location:
Canberra
Registered:
May 2002
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Re: Who has a 4agte?
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Sun, 07 November 2004 06:05
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| Quote: |
ke382TG, those boost pressures seem fairly high. I was never considering running over about 12-13 psi with the rb20 turbo.
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High for the turbo? Or high for the motor?
Your ceramic RB20 turbo might not like 20psi  , but the 4AG won't mind Mine runs 19psi with an S14 T28 turbo, and loves it.
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Location:
Brisbane
Registered:
May 2004
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Re: Who has a 4agte?
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Sun, 07 November 2004 09:29
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High for the turbo, i meant. I'm impressed by the performance these sydney boys have achieved.
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