my cars been missing at around 8.5 or so psi shoots fireballs and big clouds of black smoke. only did it start doing it after i put my new turbo on. My old setup i was running 10.5 or so psi and no probs. when i changed my setup i added 3" exhaust and 2 1/2 ic piping. no second o2 sensor. wondering if there is any thing anyone has ideas or what.

I did up the fuel 40% and still did the same thing. also does it on 100oct

 

What plugs and what gap?

Is everything fresh cap/rotor/wires/plugs?

 

brand new plugs stock gap and just did the full tune up about 100miles ago.

changed to cooler plugs and still did it. maybe i should close the gap up to like 25 or 20 but my coil should fire it off but im open to anything its way to friggin anyoing.

The plugs are ngk pzr7f i think like that.

 

well maybe i've screwed my motor up finally.

 

What are you using to tune it? What was your old turbo and what is your new turbo?

 

old turbo t3 ar.60 comp ar .63 turbine
new sc 61 t3-t04e 57 trim ar.60 comp ar.63 turbine
plx wideband and pyro
and i run h2o aquamist .6mm jet

 

bumpin

 

ever check the fuel injectors..

 

im thinking that maybe the connections are loose or the connectors. they should be capable of running that boost and more.

 

I don't have much experience with engine, I just know theory...but try checking the resistance of your spark plug wires with a multimeter to see if they're good.

You have any gauges?