Limits of a 4th gen 3sgte bottom half Options

[teamchancery]

I have seen a dyno of a 4th gen 3s (caldina)making 400whp on stock internals.However with these things you never know how long these engines last for.My question from either personal experiemce or other persons experience .Whats the most power made on a stock bottom half 4 gen to be driven around daily without breaking
I have a 4th gen and changed the pistons cause orginals cracked but didnt have the extra cash to buy forged rods.So i got some JE pistons but the 4th gen rods look so much smaller than the older mr2 and celica rods that with my new build i am deciding to build it to around 350whp and leave it there cause the rods got me nervous

[pitcelica]

9.0:1 compression is really good. No problem with it. Why do you think all aftermarket pistons makers (JE, CP, Mahle) are offering 9.0:1 comp forged pistons as a standard... With that compression, you will simply get better throttle response when you are off-boost. Don't be affraid of this comp ratio.

According to the mods you want to do, I suggest you to buy a MR2 gen 3 engine swap. Not a ST205 one because you do not want the WTA intercooler and because you want the LSD transmission (it will comes with the swap normally).

Between gen1 and gen 2, not much difference besides turbo and intercooler.

Between gen 2 and gen 3, search a little about it, you will find everything you want but here are the main :

-Map based ECU on gen3 (speed-density) vs MAF
-540cc vs 440 cc injectors
-turbo (CT20b vs CT26)
-WTA intercooler vs air-to-air intercooler
-TVIS on gen2, no TVIS on gen 3
-etc.

Search about it, you will find everything you want!

Sam