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IS - 1st Gen (2001-2005) Discussion about the IS models up to the 2005 model

IS300 Engine = Supra Engine

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Old Aug 25, 2009 | 10:19 PM
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Default IS300 Engine = Supra Engine

True or BS? I'v heard so many controversies, don't know who to believe anymore
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Old Aug 25, 2009 | 10:20 PM
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block, not heads.
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Old Aug 25, 2009 | 10:24 PM
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so the whole engine needs to be modified?
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Old Aug 25, 2009 | 11:38 PM
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It shares the NA Supra motor, not to be confused with the TT Supra motor (internal wise). Not to say though, that the NA motor is not stout.
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Old Aug 30, 2009 | 11:23 PM
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Most people on stock compression and internals don't go above 8 psi. And you should have a GOOD tune. Around 320rwhp.

With a thicker head gasket (to lower compression) most will push around 14psi, again with a good tune. Somewhere in the range of 450rwhp

You can swap GTE internals (pistons, rods, rings, etc.) and a TT head gasket and it will esentially be a GTE block. Which can hold something like 700hp. BUT you have to be very careful doing this and there is a LOT of debate whether to hone the block or not. The TT internals are the same bore as the GE internals so if you take to much material off it will be out of clearance and BOOM.

The exhaust and intake ports on the head are different from the TT and GE. As well as the cams.

It is essentially a NA Supra motor, but from what I have seen the non-vvti internals can hold WAY more power than the vvti internals. Heads are the same, cams are different from non-vvti to vvti head.

WAY more info on my.is or supraforums or clubna-t
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Old Sep 7, 2009 | 06:11 AM
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Im new to the Forum,
I have a 2002 IS300 which im looking foward to build little by little, however, it will be my daily driver so I'm not looking for a monster but at the same time wanna feel the boost...I'm talking about 300 to 350 horses...MY PLANS ARE TO TURBO THE 2JZGE (((ANY SUGGESTIONS)))?????
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Old Sep 7, 2009 | 12:49 PM
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Here you guys go...answers!!!

http://my.is/forums/f114/new-forced-...inside-346858/
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Old Sep 7, 2009 | 08:29 PM
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www.clubna-t.com
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Originally Posted by madchyers
i personally would not suggest this company, i have heard a lot of bad reviews about this as a "BASE" kit.
without doing modifications, you can run into some major headaches.
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