ovaklakah

Hi all -- great site. first time poster (actually second)
been lurking.
glomming as much info as possible on choosing car candidates, have narrowed down to is300 or wrx sti.

This is a fairly long post, and if you are willing to read it, I would love any feedback that you may have.

some questions:

1) exactly how different is the 2jz-ge from the 2jz-gte in the supra? Ihave been looking, but haven't (yet) found definitive info regarding differences. Supra seems to be bullet=proof. Am scared of a swap for my first project..

2) is 400whp realistic or completely rediculous to shoot for as a daily driver? I have heard both answers. I can move towards this number in stages...these days, 300whp seems increasingly 'pedestrian' given the plethora of very fast stock cars available right from the dealership.

3) beyond cai, larg-ish turbo, intercooler, fuel pump upgrade, fuel injector upgrades, ecm or engine management system upgrade, downpipe, headers, (are these redundant?) hi-perf cat, cat back exhaust, will this type of hp target require additional strengthing of the head or the bottom of the engine, or can I reasonably expect reliability at 400whp (which I wont even come close to using 85% of the time) with otherwise stock internals.

4) am I missing some or many major/minor considerations here? Of course, I will be funning a manual tranny, which I will fortify should the need arise. I will also upgrade the suspension as well.

Thanks in advance for feedback.

Dave -- please feel free to point me to any websites that you have found helpful

IS V300

I believe you can find some information from here!! Altough the engine is from Aristo( GS in U.S) in Japan, not from the Supa.

https://www.clublexus.com/forums/sho...threadid=96339

IS_Dude

Lots of information out there to search and find. I'll point you in the right direction w/ 2 detailed posts about the differences between the GTE and the GE engine and it's internals icluding pics of rods, pistons and such.

PICS of ge pistons vs. gte pistons.
http://www.is300.net/modules.php?nam...pic&t=13373237

full discussion of GTE vs GE engine
http://www.is300.net/modules.php?nam...pic&t=13370265

Lex Luthor

1) GTE rods and pistons are stronger, and the block has oil squirters.

2) 400 rwhp daily driven is very reasonable.

3) You can do it on the stock bottom end, but remember that the vvt-i rods are very weak compared to the GTE rods and earlier GE rods, they will be the weak link.

4) Sounds like you have a handle on what you need, will be good to see another boosted vvt-i in NY.

JPI Racing

Why are the rods on VTT-i engine weaker? Any proof on this?
JPI

IS_Dude

read my links above....

JPI Racing

I know the GTE rods and pistons are stronger than the GE. But He said VVT-i rods are weaker then the older GE rods? Any data backing up the statement?
JPI

IS_Dude

i interpreted this as GE block. lol.. oops, but rods can't be vvti. they either come in a gte block or a ge block. I'm pretty sure there aren't separate part numbers for a 98supra shortblock vs. a 97 shortblock.. Maybe you might know. i would guess that the only difference is the head, but not sure.

JPI Racing

I do know these engine by heart. He said the new rods(GE with VVT-i) are weaker than the old GE. Rods and piston can and will play a factor. But tuning is the key!
JPI

IS_Dude

well to further confuse. the rods on the '01 IS were/are bigger(theorhetically stronger) than those in '02 and on IS's. I've heard the same for the older rods in the NA supras vs the newer engines. in the SC, GS, and IS.

They changed the disign a tad. There's a thread on .net that has pics of an '01 rod and piston next to an '02 rod and piston.