Honda Car Forum

What order do these JDM integras line up performance wise? What are the differences between them and what are their engine codes? What is the difference between a JDM gsr integra SI and a USDM Integra GSR? As for buying JDM engines, what are the codes for the JDM Integras?

well performance wise the jdm enginge has more power bcuz the U.S. is more strict on the exhaust things n such so they takes power away to be able to make them legal in the U.S. N plus japan keeps the better things for themselves lol. as far as the codes go i dont kno too much bout them.I think like b18c or b18d is a jdm engine but not sure.

Wikipedia.org. its ur friend jdm motors have no number after the last letter. ex. b18c, b-series, 1.8 liters, c version of b series, no num jdm, 1-7 country code..1+5 usdm, 7 is austr.and so on

Basically every JDM motor has about 10 more horsepower then the USDM motor.

The si and SIR-G use the standard GSR motor, the Type R has more aggressive cams and pistons, better tranny, basically the Type R is throwing down 200whp. The real differences are usually body and the fact that the motors have 10-20 more hp then the american counterpart due to emissions and what not. The biggest notable difference is the usdm type R has a different front end opposed to the JDM type R. also things like side markers are different, theres usuually only suttle body differences and a 10 hp difference with the motor, the SIR G