olyrx7

iTrader: (3)

I have been having a misfire issue with my car, at 30psi it will misfire at both 6000 and 7000rpm and 7500rpm constantly when in fourthe gear. When the boost is dropped to 20-22psi it will sometimes missfire and then the next pull evrything is fine. Is this an ignition problem?? I am running an lt-10 with the x4 ignitor box.

Any suggestions?

Viking War Hammer

iTrader: (8)

dang, everyone is running 30 lbs of boost these days

CowsniperRX7

iTrader: (3)

its pretty weak.

Viking War Hammer

iTrader: (8)

are you back in town ? I'm ready to smack that ***.

CowsniperRX7

iTrader: (3)

Yep back in da lou for the summer. Maybe we could go on a 5 day coke binge?

arghx

iTrader: (3)

damn, and I've been pissed off at my misfire at 18psi...

ZAN_TUNING

iTrader: (1)

is this on a dyno or the street? if on a dyno try freeing up the load a bit and see if it still happens.

olyrx7

iTrader: (3)

It happens both on the dyno and on the street. The motor has a huge bridge would it be possible that the car is not creating enough voltage?

ZAN_TUNING

iTrader: (1)

ya if voltage is dropping that will definitely cause breakup.

coxxoc

iTrader: (3)

What kind of ignition signal noise level do you have? What heat range plugs are you using? Type of coils? Any CDI box?

olyrx7

iTrader: (3)

It's strange because originaly everything was fine and the car made 654whp, but on the ride home it started to **** it's pants with ignition.............

not sure on the iginiton noise level? Originaly I was using the ngk race plugs, when the problem started all the coils were replaced, (using the t2 coils) put in a 10.5 snowmobile plug with a 5mm gap and The x4 ignitor box was replaced and rewired, voltage is right around 15.4 volts. Problem still persists, I was told to run the motec because it would hold 16volts. I'm not sure what to do??