i recently dropped a b16 in my project crx and i bought a obd-0 pr3 ecu thats never been chipped and i used it for the first time yesterday and v-tec kicks around 4200 rpm,s for some reason. i thought a virgin pr3 should kick v-tec around 5200-5500?

 

obd o pr3 crossover 4800 and your tach is probably off a little bit.

 

My stock OBD0 ECU that came w/ my B16 had VTEC at 5200 ..

 

pr3

 

sounds likes its chipped i had pr3 mugen chipped vtech pop @ 4200rpm stock none chip should b round 5400-5500rpm