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Location:
Melbourne
Registered:
September 2005
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-4AGE Turbo- or -Silvertop Turbo- or -Blacktop N/A-
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Sat, 17 September 2005 02:58
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Hey,
I just wanted to get some ideas of the suggestion for a conversion. Just sort of a quick poll. Gonna do a conversion on either a AE82 or AE92 and was wondering which is the better way to go.
- The 4AGZE but turbo instead of charger
- The Silvertop 20V turbo
- The Blacktop 20V N/A
Just wanting some opinions
Thanks,
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Location:
Toronto, Downtown
Registered:
September 2004
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Re: -4AGE Turbo- or -Silvertop Turbo- or -Blacktop N/A-
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Sat, 17 September 2005 03:52
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ahhhh what are you trying to acheive a 10 sec time slip or just a quick daily driver do you plan to have full comprehensive insurance etc etc...
If you want to make big hp then you are best to use the 4agze then turbo it.
If you want something that is reliable and nice to drive then a 20v of any vintage would be a nice thing in a ae82
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Location:
Sydney,Hurstville
Registered:
November 2004
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Re: -4AGE Turbo- or -Silvertop Turbo- or -Blacktop N/A-
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Sat, 17 September 2005 04:41
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if you wana turbo charge a 20 valve you will need to strenghten up all the internals. i would recommend turbo charging a gze as they already have forged internals.
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Location:
Bankstown
Registered:
August 2005
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Re: -4AGE Turbo- or -Silvertop Turbo- or -Blacktop N/A-
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Sat, 17 September 2005 04:55
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Ok, I just went through allot of research.
Apparently the 16v and ze have stronger blocks.
The silver and black top 20v have high compression which isn't suited for forced induction unless its running low boost, a strong head gasket my help.
The blacktop would be the pick of the bunch if your not intending to modify it.
The 4age turbo would be the cheapest form of gaining horsepower.
A 4agze turbo would be cheaper.
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Location:
Toronto, Downtown
Registered:
September 2004
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Re: -4AGE Turbo- or -Silvertop Turbo- or -Blacktop N/A-
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Sat, 17 September 2005 05:03
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silvertop 20v's are fine to turbocharge.... They can take low boost no worries but if you intend to run 20psi through the thing you will need to decompress it with forged pistons also stronger rods are needed.
A 4agze wouldnt be a bad thing in an ae82 as they are pretty light even on stock boost traction would be an issue
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Location:
Melbourne
Registered:
September 2005
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Re: -4AGE Turbo- or -Silvertop Turbo- or -Blacktop N/A-
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Sat, 17 September 2005 07:12
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Hey,
If I wanted to turbo a silvertop do I need to change the block? I have read somewhere that it is required. Or do you only need stronger internals?
Also would this be better in terms of kw and hp compared to a 4AGZE turbo'd?
Eventually I want this thing to be a monster!  Thats why I need to think further down the track.
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Location:
Toronto, Downtown
Registered:
September 2004
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Re: -4AGE Turbo- or -Silvertop Turbo- or -Blacktop N/A-
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Sat, 17 September 2005 08:23
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no you dont need to replace the block on a 20v when you turbo it and providing your tuning an support systems are up to it and you run low boost there is no reason you cant turbo a stock 20v.
If you want it to be a monster you will need to be persistent willing to have to fork out rather large ammounts of cash without being able to recoup it when you sell the car.. If your ok with this then get a 4agze of any vintage as long as the motor is from a car that is a later model than your car and agian with the right tuning and support systems a stock 4agze can support 200rwkw's no worries...
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Location:
Canberra
Registered:
November 2004
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Re: -4AGE Turbo- or -Silvertop Turbo- or -Blacktop N/A-
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Sat, 17 September 2005 08:35
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All of the obove turbo set-ups will make similar power!
Yes you can turbo a 20v , but only limit to .5 bar.cause of the compresion.
Only black 20v- have the lighter internals { which don't like lots of boost} silver 20v have the same block, crank and rods as a ze's ,{same part numbers} they even have oil squirters for the pistons.
If you want to run high boost with a silver 20v, you will need some forgies, i have ze's ones in mine as they are good value.
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Registered:
September 2005
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Re: -4AGE Turbo- or -Silvertop Turbo- or -Blacktop N/A-
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Sat, 17 September 2005 09:04
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silvertop has same rods as a GZE. their bottom end is exactally the same except for the higher compression pistons.
in a blacktop the rods are thinner and lighter (for high revs) not the best starting point.
as people have stated, start with a GZE and turbo it.
I am currently turboing my 20V silvertop. I shall be running 8psi with stock internals for now with the view of putting GZE pistons in it soon.
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Location:
Melbourne
Registered:
September 2005
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Re: -4AGE Turbo- or -Silvertop Turbo- or -Blacktop N/A-
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Sat, 17 September 2005 13:18
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Hey,
So are you guys suggesting that the potential difference in power between the 4AGZE turbo'd and the 4AGE 20V turbo is not much differnt, and that I should go with the 4AGZE turbo as it is much more simplier to do.
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Location:
Canberra
Registered:
November 2004
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Re: -4AGE Turbo- or -Silvertop Turbo- or -Blacktop N/A-
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Sun, 18 September 2005 02:07
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if your running low boost, 20v will out power the ze due to the compression. If you want to run higher boost ie; 15psi the ze is the go. Im only doing the 20v because of the cost of a ze. My 20v long engine and all new toyota parts- ze forgies , rings bearings full gasket kit etc, works out to be the same as a second hand ze, and the 20v look heaps better. Both need exhaust manifold , sump oil return etc. 20v has water pipes on the back of the head that make it an ass.
As for power differences, same like the 20v, others the 16v. There are big power versions of both around, so its up to you.
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Location:
Melbourne
Registered:
September 2005
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Re: -4AGE Turbo- or -Silvertop Turbo- or -Blacktop N/A-
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Sun, 18 September 2005 03:08
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Hey,
Well I have always been a fan of the 20V but I just dont want to see my 4AGE 20V turbo get wasted by 4AGZE turbo.
I know this is a very delicate subject as both engines can be modified to extremes but in money wise, its the 4AGZE turbo'd right?
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Location:
Canberra
Registered:
November 2004
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Re: -4AGE Turbo- or -Silvertop Turbo- or -Blacktop N/A-
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Sun, 18 September 2005 04:37
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if both have the same mods, turbo etc the 20v will not get wasted. Hey ring Rigoli they just built one , has custom rods and forgies bigger cams ported 20v head but runs on methonal makes 570 hp at front wheels, 430 hp with standard cams.
not a cheap engine though,
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I Supported Toymods
Location:
south Melbourne/KL
Registered:
June 2004
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Re: -4AGE Turbo- or -Silvertop Turbo- or -Blacktop N/A-
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Sun, 18 September 2005 05:51
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| JenTLy wrote on Sun, 18 September 2005 13:08 |
Hey,
Well I have always been a fan of the 20V but I just dont want to see my 4AGE 20V turbo get wasted by 4AGZE turbo.
I know this is a very delicate subject as both engines can be modified to extremes but in money wise, its the 4AGZE turbo'd right?
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go with gze. if u want mad power, it all comes down to strenghtening the block. no real answer 20v or 16v is faster in this case
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Location:
Sydney
Registered:
June 2003
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Re: -4AGE Turbo- or -Silvertop Turbo- or -Blacktop N/A-
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Sun, 18 September 2005 09:51
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I'm already running 20v set up.
for the guys with the 20v turbo.
can you send me a photo of your inlet manifolds and exhaust manifold..
and who done it for you.
thank you.
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Location:
syd- northen beaches
Registered:
June 2005
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Re: -4AGE Turbo- or -Silvertop Turbo- or -Blacktop N/A-
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Sun, 18 September 2005 22:56
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i have seen an early corolla with a gze bottom end
and a 20v head on it running insane boost.
i havent looked into this but it could be an option?
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Location:
Sydney
Registered:
June 2003
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Re: -4AGE Turbo- or -Silvertop Turbo- or -Blacktop N/A-
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Mon, 19 September 2005 09:35
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if that is the case
why can't i change my piston to forged.
than boost the living shit out of it.
if you guys are saying the 20v and GZE bottom is pretty much the same, apart from the piston.
that is if the head would hold up 20psi
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Location:
Toronto, Downtown
Registered:
September 2004
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Re: -4AGE Turbo- or -Silvertop Turbo- or -Blacktop N/A-
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Mon, 19 September 2005 10:35
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ahhahhaha the head should hold allmost anything you can throw at it but why must you have a 20v for light boost they are great little motors to boost due to the high compression but other than that there is no advantage in spending big money on a 20v rebuild with forged pistons just so you can throw 20psi at the thing when you can simply buy a half decent 4agze and it will take 20psi every day of the week
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