Missfire is driving me nuts, even changed set up, please read
Ok, so my car was running great at 11-12psi, i trapped at 111mph with it with s4 cams, 3 inch turbo back, gti-r turbo manifold with turbo, 370cc injectors at 4 bar.
So then my buddy in his mach 1 mustang trapped at 113 with bolt ons and 100shot of nitrous, i couldnt allow such a thing so i upped the boost to 15psi, bam started getting crazy missfires up top in the rpms.
So after alot of searching and questions figured i was maxing out the bored stock maf and the 370 injectors
Changed the set up to a z32 maf with sti 525cc injectors and sent the ecu out to jwt to fix that business
Get everything all wired in and start the car go out for a drive and well hello mr missfire again
Last time this happend im fairly sure i had the gap at .035 or lower on the plugs.
Anyone got any ideas?
i dont know what the fuel pressure should be at, i do have a nismo fpr. Just havent checked that situation yet, anyone have numbers for what i should with this new set up?
I havent changed the wires, They look ok, but that could be the culprit
one more wierd thing is it only missfires at full throttle, at like 3/4 throttle it doesnt
I just want some ideas for when i go back under the hood tomorrow
sorry for the rant and the everywhere ness this post has become lol
So then my buddy in his mach 1 mustang trapped at 113 with bolt ons and 100shot of nitrous, i couldnt allow such a thing so i upped the boost to 15psi, bam started getting crazy missfires up top in the rpms.
So after alot of searching and questions figured i was maxing out the bored stock maf and the 370 injectors
Changed the set up to a z32 maf with sti 525cc injectors and sent the ecu out to jwt to fix that business
Get everything all wired in and start the car go out for a drive and well hello mr missfire again
Last time this happend im fairly sure i had the gap at .035 or lower on the plugs.
Anyone got any ideas?
i dont know what the fuel pressure should be at, i do have a nismo fpr. Just havent checked that situation yet, anyone have numbers for what i should with this new set up?
I havent changed the wires, They look ok, but that could be the culprit
one more wierd thing is it only missfires at full throttle, at like 3/4 throttle it doesnt
I just want some ideas for when i go back under the hood tomorrow
sorry for the rant and the everywhere ness this post has become lol