GSX missfires?

[Eclipse4ever]

Well, I will make a long story short and explain the problem fast.
The car has NGK BPR7ES spark plugs and NGK turbo wires, they are like1 week old. The car will run fine if I dont rev it high RPMs. When I hit the gas after about 4-5K the car will missfire, it will make a loud bang noise, and lots of white smoke comes out of the exhaust. It happens at high boost. Its pissing me off since I cant find the problem.

[eclipsed at 3am]

how much psi are you running? and, according to your mods, you have a whole lot of air upgrades, but you dont have any fuel upgrades, and no way to control them (like an safc).

i think it might be fuel cut of some sort, i had the same problem. i had stock injectors and the vaccuum line from the wastegate to the ebc fell off, so whenever i would floor it, it would boost 25+ or so, then the car would surge a split second, and then 25% of the time would shoot a flame out of the back, but mostly just smoke. once i connected that boost controller line, i had to tune it down to 16psi, until my injectors come in. now i can floor it and it goes through the rpms smoothly.

moral of the story is, until you get fuel upgrades, tune your boost lower.

[l_eclipse_l]

What gap are you running on the plugs?

[Eclipse4ever]

The spark plugs and wires are 2 weeks old. I am currently running 13psi. I have heard that people can do 15psi with stock fuel system so I am doing 13. At high RPMS the car kinda missfire. It makes a loud BANG noise, lots of smoke from the exhaust and power is lost for about 1 second. If I keep pushing it it will keep missfiring every 3-4 seconds. The noise is loud, lots of smoke from the exhaust and car looses power. I cannot find the problem and its pissing me off. It seems to happen ONLY after 4k RPMS.

Also, I know about lifter tick but I can clearly hear a spark jumping. It did it with the old wires and now with the new. So I know its not jumping from wire to wire. But where can a spark jump from?

A friend told me that if I have low compression in 1 cylinder then the rest 3 the car will do what it does right now.

I am confused and I cant to find the problem.