eljah0426

i just purchased a 94 si hatch with a gsr swap the guy said it had itr pistons and rods just curious is this a good turbo setup if not what needs to be done for turbo also has si tranny act clutch and fidanza fly thx

1990hf

type r piston are high compression. you gonna need to change the piston out to lower compression. if your goal is for some high crazy HP then invest into some good aftermarket pistons and rod. re-sleeve and bored out. if not then just sell your type r piston and buy some LS piston and just press them on the type r rod and you should be good for 9-10lb of boost for a few week til it blow. other then that. GL

civic_r87111

^ LMFAO... I luv that last part, lol. If u just want medium HP (like 250 maybe 300) then just boost it to 6-8psi. If u want more than that ur gonna need lower CR forged rods and pistons and that may get u to 450 HP. No such thing as Type R rods either, just so u know.

Deetz

Actually there is! The B18C5 uses a stronger chrome alloy, and they are slightly lighter than others found in say a regular B18C1 gsr engine

civic_r87111

Really?? Because they have the exact same part # at acura and have P72 cast on both the GSR and Type R rods.

Deetz

I work for Acura in Canada, they are different part numbers in the parts catalogue.

civic_r87111

LOL... Canada is crazy then cause they r the same here.

kl3ver1

can you change the pistons with the old gzr rods, or do you have to change those as well?

thumper64

GSR and ITR rods are the same length, and the pistons are interchangeable. The wrist pins are the same diameter.