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Location:
Brisbane
Registered:
May 2003
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Which turbo for 4AGTE
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Sat, 03 May 2003 08:13
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Hi,
First post here but surely not the last....
I've got a AE82 Twin Cam Hatch that I am planning a 4AGTE for using the std MAP 4AGZE. I will be using aftermarket computer, steam pipe manifold, i/cooler etc. It needs to be faster than my previous Turbo Swift....  . I think if I have somewhere between 200-250HP at the front wheels I will be happy.
The thing that I am most worried about is the turbo. The car will be driven most days to work and all up will be driven more than your typical fast street car. I really want a turbo that will be making substantial boost by about 3000rpm.
I originally thought of using a T28 off a S14 or S15, but upon thinking of the power that I want, it may not be big enough. Then I looked at the CT26 (I know there are lots of variations, I'm really unsure which is best suited), but after reading one of the posts on here I don't really like the sound of the boost curve. I have really started to think about spending more cash on the turbo and am thinking of the GT series Garrett (or if a large wad of cash falls my way, the new HKS series). I know these are expensive, but I am willing to pay the money if it gets the turbo I want. I assume the GT Garretts will boost up early and have the top end I need for the power I want.
So....Now that you know what I want, what do you pro's suggest??
I especially want any feedback from people that have used these turbos...like
- Where does it start producing boost (like over 1psi)
- Where does it start make substantial boost (like over 6psi)
- Where does it run out of puff
- What kind of power are you making
Thanks a lot....
Kev
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Location:
Canberra
Registered:
May 2002
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Re: Which turbo for 4AGTE
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Sat, 03 May 2003 12:59
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I JUST fininshed changing over my turbo from a high flowed CT26 to an S14 T28 today. With the CT26, my 4AGTE would struggle to make boost before 4500rpm, but had a screaming top end, now with the T28 its making 5psi at 2500rpm! I've only been for a quick blast tonight, but it doesnt seem to have lost anything up top either. I'll be interested to see the results on the dyno.
If your gonna spend the cash though, you couldnt go past a brand new GT25 with a compressor/turbine combination matched to your setup.
Cheers
Phil
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Location:
Montrose, VIC
Registered:
May 2002
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Re: Which turbo for 4AGTE
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Sat, 03 May 2003 13:17
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Absolutely, buy brand new IF you can afford it. Otherwise, time to look around 
The S15 turbo is a reasonable option, I'd suggest you choose between that or R32 RB20 - I used one of these on my car for a while, before I overdid it too many times and eventually the turbine came off. Presently I'm using an RB25 turbo, but this does seem quite a bit laggier. I can recommend the RB20 one though, especially in a FWD car you wouldn't probably want to go TOO much more powerful. The AE101 Levin GTZ is probably the car I'd be game to go the furtherest in, having different suspension etc., but even then I'd tend to be careful.
R32 turbo, properly tuned management (I'd probably suggest haltech/autronic, motec if you feel really cashed up), moderate sized intercooler, 1 bar boost, and you should have something that'll last reasonably well, be good to drive and not cause you too much strife.
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Location:
Adelaide
Registered:
November 2002
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Location:
Brisbane
Registered:
May 2002
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Re: Which turbo for 4AGTE
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Sun, 04 May 2003 10:51
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Hey Kev, there's a name I recognise! So you got permission to modify the better half's car huh? Nice work.
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Location:
Brisbane
Registered:
May 2003
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Re: Which turbo for 4AGTE
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Mon, 05 May 2003 00:26
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G'day again,
Thanks for the replies.
Norbie: Nah not like that, I've got the Twin Cam for me, and Bec and I have bought a Barina for a car for her. I'm trying to sell the 200sx but having worse luck than the Swift!!!  Hopefully thou I'll have some fun with the corolla and it will hold together better than the swift....especially in the gearbox department!!
I've been thinking some more about the suggestions on here, and I really don't think the t28 (which I guess most people are suggesting) will be big enough for the power I want. Has anybody put a VF22 (usually used as a power up on a WRX) on a 4AG?? What kind of performance did they get out of that? On a WRX they are good for about 200hp at 4 wheels, we all know how much power they loose on a dyno, they are BB too so that is an advantage. I'd think that might be pretty well suited to what I'm after.
In all reality I guess I am asking if anybody has done a 4AGTE with the kind of components and power delivery I am after. Either somebody I can talk to in Australia, or anywhere else in this wide world....surely somebody can help out.
Thanks a lot for your views and ideas...muchly appreciated.
Kev
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I supported Toymods
Location:
Perth
Registered:
May 2002
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Location:
West Sydney, NSW
Registered:
May 2003
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Re: Which turbo for 4AGTE
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Thu, 19 June 2003 16:36
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Hey Nos4ag,
I have an 88 twincam with the big port 4age and I read in your post that you had turbo charged this engine. I have been hoping to do this on mine and run a similar turbo at low boost (around 5 psi) but have been worried wether this engine's internals can handle it.
I was wondering then, will this engine handle the turbo well? Or can I expect it not to last very long even if I run it a low boost? Also cost wise, how much roughly did it cost you?
Sorry bout havin so many questions, just really interested in plannin for this.
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Location:
sunny coast, qld
Registered:
October 2002
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Re: Which turbo for 4AGTE
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Thu, 19 June 2003 23:33
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twincammer: you may have to try PMing him as the thread has been revived a little.
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Location:
West Sydney, NSW
Registered:
May 2003
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Re: Which turbo for 4AGTE
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Fri, 20 June 2003 04:00
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Ok will do.. thanks!
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Location:
Auckland
Registered:
May 2002
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Re: Which turbo for 4AGTE
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Tue, 24 June 2003 04:42
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ok
turbo bluetop is sweet even at 15psi if you have fuel
i have built 3 turbo setups on bluetops and ive almost got it as i want it
first was a t3/4 and at 5psi with 0deg spark advance was making 97kw@wheels with stock fuel system and GTZ intercooler.
Number 2 was custom T25 Turbo similar to the M10 Series you find on pulsars and S11/12 Silvias ..with GT4 intercooler and 2inch downpipe with screamer and 5deg spark advance stock fuel this made 106kw@wheels on 4.5psi ..
finally i have changed to a Ca18det turbo (t25) same intercooler but with about 12psi boost and 5deg advance and downpipe is now 2&3/4inch and may or may not be running sidepipe on the dyno .. NOTE:THIS SETUP HAS MORE FUEL but still on a bluetop engine. This will be dyno'd on Saturday 26th June and then i will post up all the Dyno sheets on our website www.garagedori.com
ALL THESE ARE ON STOCK BLUETOP ENGINES ..no INTERNAL MODS..NO REBUILDS ..all 200k+motors
ANY QUESTIONS feel free to email me at drifter4ag @ garagedori dot com
Matt
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Location:
Perth
Registered:
September 2002
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Re: Which turbo for 4AGTE
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Wed, 25 June 2003 07:40
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Interesting results..
I got the haltech e6k in finally and got it back yesterday.. It pulled 166hp@wheels on 14psi.. r33 turbo and vr4 intercooler.. ae92 gze motor
thats 123rwkw.. i expected more
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I supported Toymods
Location:
Northern Beaches
Registered:
May 2002
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Re: Which turbo for 4AGTE
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Wed, 25 June 2003 08:17
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how long has each of these motors lasted?
are you just doing the stock ge's cos you got them lying around? hehe
or is it the same motor?
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Location:
Auckland
Registered:
May 2002
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Re: Which turbo for 4AGTE
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Wed, 25 June 2003 23:15
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first one the 97kw ended up losting the t3/4 and trading to an RB20DET turbocharger .. and ran at around 10psi for 1.5years
2nd one had a few problems with fuel surge and sparking plug faliure so i went throught two motors with that setup.
The most recent motor has been in the car 2months and has been to two drift days ..one competition and one practice day. And i dont see it expiring anytime soon .. most bluetops will last a very long time with turbo ..safely 7-8psi .. no trouble ever 4-5psi ..and shortened lifespan = 10-14 psi which is what im currently running .. it all comes down to spark and advance.
And why bluetops ? .. compression isnt 2 low and isnt 2 high .. and they also cost about $60 from a wrecker
ive done a turbo redtop but it was running 11:1 +8psi and that was when the spark plugs shat themselves resulting in a slight meltdown.
But note .. Stock fuel system and ecu and injectors .. With a programmable ecu you can make them last plenty with good spark retard systems and stuff like that.
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Registered:
May 2002
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I supported Toymods
Location:
Northern Beaches
Registered:
May 2002
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Re: Which turbo for 4AGTE
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Thu, 26 June 2003 02:50
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whats a gtz intercooler? do you mean gze?
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Location:
Perth
Registered:
September 2002
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Re: Which turbo for 4AGTE
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Thu, 26 June 2003 03:01
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Toyota Corolla Levin/Trueno GTZ is the car which has the 4agze motor.
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Location:
Auckland
Registered:
May 2002
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Re: Which turbo for 4AGTE
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Sun, 29 June 2003 03:02
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OK
all done
back on the dyno again for more power runs
we ran it up 4 times yesterday
run 1-2 119kw@wheels with 10.8psi and 650nm on a roller dyno. with 2inch exhaust 2 resonators , over diff and super turbo muff.
run 3-4 130kw@wheels with 11.1psi and 600nm same dyno with my cust side exit exhaust and no mufflers which was a very good figure
but
i have reached the fuel limits of the bluetop injectors and ecu so no more can be achieved without full engine balence/head porting etc or aftermarket ecu/plugin systems
Still stock bluetop engines S13 turbo and Nite Parts and Performance manifolds and downpipes which are made in NZ and i can ship to austrailia if anyone is interested. VERY GOOD MANIFOLDS.
also K Skewes AA60 carina with M10 pulsar turbo and 9.2psi ran up 117kw@wheels with no intercooler !! Dyno for that will also be available
Dyno printouts with be available later this week on www.garagedori.com
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I supported Toymods
Location:
Northern Beaches
Registered:
May 2002
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Location:
Auckland
Registered:
May 2002
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Re: Which turbo for 4AGTE
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Sun, 29 June 2003 23:09
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Im running stock intank AE86 fuel pump and 2.9bar fuel pressure reg.
Turbo Manifolds retail at $690 but i can get cheaper than that i think
also we have a cast bellhousing to fit W series gearboxes straight to your 4age and they also fit the GZE 220mm flywheel and clutches ..
email me at drifter4ag@garagedori.com for more info and prices .. i can work out a custom deal for everyone ..or i can fly over to aus and set your cars up for you
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I supported Toymods
On probation
Location:
Brisbane, Queensland
Registered:
January 2003
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Re: Which turbo for 4AGTE
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Mon, 11 August 2003 09:02
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600nm of torque 
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Registered:
March 2003
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Re: Which turbo for 4AGTE
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Tue, 12 August 2003 22:04
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where do u guys get you rear wheel drive inlet manifold?????
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