Turboing a GS300
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I'm wondering if anyone knows about how much HP a stock 2nd gen GS300 motor will take before eating itself. This would be with a single turbo, thick head gasket and head studs, and all supporting mods. I'm curious if the internals in this motor are the exact same as the NA Supra motor or not? Also if you had a choice would you turbo a 2nd gen or 1st gen GS3? Thanks!
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your good for atleast 500hp on that head gasket but tranny is a def. no no.. ur allowed if and only if the tranny allows 375-hp on that ... but what turbo.. and fuel system how much boost ??as long as your not to lean or rich... u should be fine..... but unless ur trying for 1000hp u need alot more then a head gasket
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Originally Posted by bighitbike
To answer your other questions we do not have the supra internals. That is the 2JZ-GTE while we have the 2JZ-GE...Your tranny should handle no more than 375...
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It will probably be more cost effective to swap the motor out for an aristo motor than to try to get high hp out of the 2JZGE motor... I was debating the same thing and its more expensive per HP to modify the stock motor. Plus the 2JZGTE has alot more potential, just look at the supra TT.
Last edited by GSoup; 06-01-06 at 04:50 PM.
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Can someone advise what an 'arista' engine is? I have a GS300 turbo'd but want to run higher boost. Have been advised to swap in a GTE Supra engine block and internals. But does this engine have steel caps? Is there an engine block available for sale that is built for big HP rather than buying an engine, then having to beef up?
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Originally Posted by wahoo50
Can someone advise what an 'arista' engine is? I have a GS300 turbo'd but want to run higher boost. Have been advised to swap in a GTE Supra engine block and internals. But does this engine have steel caps? Is there an engine block available for sale that is built for big HP rather than buying an engine, then having to beef up?
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As for buying a pre-built race motor....its a LOT more expensive than beefing up your stock motor. However, the pre-built ones are tested and garuanteed. The one you do yourself is not. The best/cheapest option is to go with a GTE bottom end, I believe it is a direct swap. I think that is good for at least 600hp up to 800hp or so.
Anyways back to the original topic:
Originally Posted by treimche
I know the GS3 doesn't have the 2JZ-GTE internals, I was just making sure that they are the exact same as the NA Supra 2JZ-GE. Now how about the VVTI part, is that hard to tune? I would be using the AEM EMS for tuning.
Last edited by JeffTsai; 06-07-06 at 07:17 PM.
#12
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Check out the Club NA-T forum and you'll be surprised how much horsepower a stock 2JZ-GE will make.
The weak link as mentioned before is the tranny. I myself am contemplating adding a turbo to my 99 GS300. Of course I won't be going for high horsepower levels, so a built tranny is not required for me.
The weak link as mentioned before is the tranny. I myself am contemplating adding a turbo to my 99 GS300. Of course I won't be going for high horsepower levels, so a built tranny is not required for me.
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Originally Posted by BobaDrift
Check out the Club NA-T forum and you'll be surprised how much horsepower a stock 2JZ-GE will make.
The weak link as mentioned before is the tranny. I myself am contemplating adding a turbo to my 99 GS300. Of course I won't be going for high horsepower levels, so a built tranny is not required for me.
The weak link as mentioned before is the tranny. I myself am contemplating adding a turbo to my 99 GS300. Of course I won't be going for high horsepower levels, so a built tranny is not required for me.
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To cap this off. VVT-I 2jz-GE has lighter rods and different design. Toyota changed out the valve cuts and combustion chamber for better burn. If you are looking to run more than 500whp, the tranny has to be built. You will will also need a TT bottom end. We are finish our PCS piggy back system this week on a customer car. Here are some spec on the car. PCS, 440cc injectors, TT bottom end, TT h/g etc, JPI valvebody upgrade.
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Can someone advise if the GTE Supra block comes from the factory with steel mains? My car runs great at 14.7 lbs boost, but I think there's more in it at 20-25 lbs. I will install the Supra short block for the extra hp, but if I'll have to modify it I may as well buy a built shortblock. Opinions please.