90 EF B18 swap problem

[knuteiriktveiten]

Hey guys, I just finally finished the swap and she runs and drives. Theres one problem tho, at higher rpms (3500 or so) she backfires and will not rev any higher. If you could help me narrow it down I would really appreciate it.

 

[disableddan]

Hey man, I really can't suggest anything... is it vtec? I'm interested in doing a B18 swap into my EF, what did you have to do to make it work? Best of luck sorting out that backfire!

 

[knuteiriktveiten]

turned out to be the cps not working correctly. all fixed now