ok i have a zex wet kit on my car and i was running a 55 in it with no problem at all. i put a 75 shot in without takeing any timing out and almost perfect. it looks like i might have a very very very little bit of detination. you cant realll see much there is a very little bit of black specs on the plugs that you can barely see.
i was wondering if i put colder plugs in it if it will help any or should i go to a 65 shot. i have ngk tr55s in it right now. but everyone tells me to go to autolite not ngks.
need less to say that 75 woke my car up ALOT . i had alot of torque steer when i hit the button. I LOVE IT. i want to go bigger but i know i cant without takin some timing out.
Do you have a scantool running while your spraying to check for KR? Wideband O2 to get the fuel mixture right? What's the gap on the TR55s? If you have splatter showing on the plugs you're getting more than just a little bit of pre-detonation, and any prolonged knock is a big no no on stock pistons.
Aaron
1996 SSEi (year confused and on the road again at last) : swapped 4T65, cammed and intercooled among other things
Best ET: 13.208
Best trap: 104.96mph
the gap on the plugs is stock. you cant relly see much on the plugs i wish i could take a picture of them and put it on here. i have a scan tool but for some reason it works on my car only half the time. next time i run it ill make sure to try the scan tool. but the plugs look great. i went through atleast a half of a bottle last night and like i said i honestly couldnt even tell you if it was signs of detination or not thats how little it is. the plug is brownish on one spot. i guess the spot that is facing down in the cylinder. but i had 2 gear heads with me that know about nitrous and they said it looks great. one even said it looks like i might be runnin a little rich
Scan for KR. Your gap should be at least .055 on all your plugs, but with a 75 dry shot I ran .050 years ago. Also do you have any methods for fuel mixture management?