Difference between b16a(XSi) and sir1?
the XSi is a 90-93 integra and the Si-R is from civic/crx. i know one ofthe motors had more hp dont know why.. it was either the ECU or the pistons.. one was PR3 and the other was P30.. hope this helps
Ya, I knew which car they came from, but I just did not know the difference in the actual makeup of the motor. Oh ya, /smacks self in the head. The pistons are different I think 10.4 vs 10.2 I think??
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