normal deposits or detonation?
#1
normal deposits or detonation?
heat range 8
Spots are tannish and perhaps a little grayish in color. Plugs have been in the car for 5000 miles approx. Car runs good, 8psi, 8.5:1 compression. Let me know what you think.
Spots are tannish and perhaps a little grayish in color. Plugs have been in the car for 5000 miles approx. Car runs good, 8psi, 8.5:1 compression. Let me know what you think.
#2
Re: normal deposits or detonation?
did u pull those after shutting down in the middle of a full power pull? if yes, i would say try taking out some timing and checking the plugs again.
#4
Re: normal deposits or detonation?
No, these plugs were pulled during a cam swap. They weren't pulled after a pull. I was just curious if they were evidence that the car was detonating. Engine is 8.5:1 with a GT3076r. Timing is around 16* at peak torque, climbing to 21* at 7500rpm.
Don't want the engine to get hurt, but I thought the tune was ultra safe for the pump gas, considering this was 8psi map.
Don't want the engine to get hurt, but I thought the tune was ultra safe for the pump gas, considering this was 8psi map.
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#9
Re: normal deposits or detonation?
I am on 91 pump gas. And I know that the plugs should have been pulled after a pull to check for detonation, but I was curious why the deposits were there. Not sure if it was signs of past detonation or not, but I figured 8.5:1 compression should be rather safe. Engine is runnin 13psi now. Going to dyno and putting new plugs in.
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