B20 vtec idles great, revs rough
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B20 vtec idles great, revs rough
Hey Honda ppl,
I have an obd2 b20 vtec.
B20b bottom with b20z pistons, ARP Rod Bolts, ACL Bearings etc.. (irrelevant)
GSR head. Type R throttle body, Intake Manifold ported and polished, head P&P as well.
Stuck with the 240cc saturated injectors.
No engine codes.
Idles great. Revs fine in idle.
When I drive it around the street casually it revs up roughly, don't think it feels like a bog.
I should also mention it's on a p72 ecu.
New NGK spark plugs too. I doubt it's the distributor if it idles smooth?
I've researched and checked many potential causes for this, but haven't found a solution
-Calibrated the throttle sensor to 0.5v
Could this be a vacuum issue?
Any insight would be much appreciated
Thanks in advance
I have an obd2 b20 vtec.
B20b bottom with b20z pistons, ARP Rod Bolts, ACL Bearings etc.. (irrelevant)
GSR head. Type R throttle body, Intake Manifold ported and polished, head P&P as well.
Stuck with the 240cc saturated injectors.
No engine codes.
Idles great. Revs fine in idle.
When I drive it around the street casually it revs up roughly, don't think it feels like a bog.
I should also mention it's on a p72 ecu.
New NGK spark plugs too. I doubt it's the distributor if it idles smooth?
I've researched and checked many potential causes for this, but haven't found a solution
-Calibrated the throttle sensor to 0.5v
Could this be a vacuum issue?
Any insight would be much appreciated
Thanks in advance
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Re: B20 vtec idles great, revs rough
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Re: B20 vtec idles great, revs rough
Thanks for the responses guys, I figured as much.
Seeing as the motor is only mildly modified, do you think an Apexi VAFC will suffice or should I convert to an obd1 chipped ecu?
Thanks in advance
Seeing as the motor is only mildly modified, do you think an Apexi VAFC will suffice or should I convert to an obd1 chipped ecu?
Thanks in advance
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Re: B20 vtec idles great, revs rough
And to add to that I already have the gs-r water pump and timing belt. I read that non vtec water pumps spin too fast at high revs.
Also, do you really believe new injectors are necessary? I have some 345cc peak and hold injectors kicking around from an old Prelude, I could use those
Also, do you really believe new injectors are necessary? I have some 345cc peak and hold injectors kicking around from an old Prelude, I could use those
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