Lookng to buy a JDM Type-R, want to find out more about the differences between B18C5 and B18C6,7. I was told the only diff. is the final drive ratio, anything else? How can I tell which is which, are there suffix (e,g, B18C5 or B18C7)? How to distinguish JDM and US?? Thanks a lot

 

USDM Integra Type R: B18C5

JDM Integra Type R: B18C

JDM Integra "GSR": B18C

Euro Integra Type R: B18C6

 

The 96 spec jdm ITR motor and the 98 spec jdm ITR motor had differences such as final drive, and a few component differences such as the header. It's generally assumed that the 98 spec is the better motor to have but will also cost a few hundred more.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by B2FiNiTY &raquo;</TD></TR><TR><TD CLASS="quote">USDM Integra Type R: B18C5

JDM Integra Type R: B18C

JDM Integra "GSR": B18C

Euro Integra Type R: B18C6
</TD></TR></TABLE>

USDM Integra Type R: B18C5 = cr 10.6:1 ?
Euro Integra Type R: B18C6 = cr 11.0:1

 

1996 spec R motors (B18C) with 4.40 finals are faster out the box everyone I have dynoed has produced 3-7 hp more than the 1998 spec R motors even with the 4-1 compared to the 4-2-1 but it could also be that there are more miles on the 96 motors. So maybe they arnt as tight.

 

Thx. everyone.

I want a JDM Integra Type R how can i physically tell the diff. if JDM GSR and JDM Type R are both B18C? (besides the valve cover). Also how to distingush 96 Spec and 98 Spec? thx.

 

c7 is australian motor
got 11.0:1 CR

 

Check the intake manifolds and if the head reads pr-x where x = a number.
The header also is different.

 

ITR head is pr3...also you can pull the head and look at pistons. IKf you see a pr3 head on a b18c you can also look at the springs for dual.