is it real

[91RED3S]

how do i tell if the "jdm" engine and tranny that i am getting really is a JDM 2nd gen engine?

[JekylandHyde]

There isn't realy any difference in the Gen IIs, so why bother with a JDM engine?

[Drifting Dane]

The ecu is different, but not cosmetically... the only way to tell is to hook it up to a dyno and get a stock pony run, then compare that to the US spec stock power.

Or, just trust the guy thats doing your swap

[91RED3S]

fortunatly im the guy doing my swap, and the reason i went jdm is because i dont have a local supplier for the 3sgte and i dont have the money for a new engine or to rebuild mine. will i notice any power difference between usdm and jdm if i use my ecu, i have to use my ecu

[Drifting Dane]

the usdm (or jem, i dont know which it actually is but it doesnt really matter for this discussion) engine's ecu is tuned differently than the jdm one.

the jdm ecu upped the boost i think two psi and tuned at that boost level, if you use the us-spec ecu, you will loose 25 hp to the flywheel, or maybe about 10-15 to the wheels (nothing a boost controller cant fix )

[JekylandHyde]

The JDM ECU is more aggressive because they have a higher octane fuels and can use the more agrgressive A/Fs & timing. That is not something that will change with a boost controller.

I'm not sure the actual boost levels were different on the Gen IIs.
I know the Gen IIIs offered more boost.

[91RED3S]

well i got the engine finally and it is ready to be dropped in, i gotta say, the damn thing better run good, because it looks like shit, i mean this thing is filthy on the outside, its good and clean inside the intercooler pipes and intake though, i'll have more info tomorrow when i get the thing running

[MR-355-5sfTe]

91 RED3S : if you don't mind me asking... where did you get your engine?