Rb30Det Refusing To Run Smoothly!

[Nostalgic R31]

It revs very easily. No hesitating or backfiring or anything. Revs as easy as most other rb's I've had.

Only thing is when you rev it and hold at a specific rpm it still has the miss as it does at idle (just faster of course)

Re done the wiring today and I've got the same result as before.

I have tried a few tps just to make sure it's not that. It originally had a s1 tps, which we swapped for a s2 at the tuner and I've since replaced that tps with another s2.

The only other thing I can think of now is the valves. Highly unlikely but would this be happening if say because the place that re-cond the head didn't adjust the valves properly on cylinders 1 and 6 making them too tight or something? Resulting in them not fully closing?

I don't know. Might try another cas. This would be my 4th

[ragzz]

How's the blow bye is it puffing fair bit out the catch can ?

[Badgaz]

is the tps set correctly?.....has your injector latency been set correctly? my injectors would not idle and missfire when i don't have the injector latency set correctly.

[ragzz]

At 100psi compression it would be struggling to idle , have u checked cams position to make sure one isn't out a tooth can be tricky to set up at times ,in turn would give u low comp accross all 6 cyl ..... Because 100psi works out to be around the low 6.0 in comp ratio, witch is very low ....

[ragzz]

Sorry I didn't read earlier post properly did it have 100psi only on 1 an 6 cyl when u did the comp test if so get ready for a build it will more than Likely be the ring lands broken .. That's my two cents anyways