Lilslmj
5+ Year Contributor
- 126
- 44
- Feb 8, 2018
-
Berwick,
Pennsylvania
fairly new and still learning but can someone have a look at my log? ive been dealing with knock for quite some time and it never seems to go away completely.. one pull I can get 1.4counts so I pull 2 degrees and it may go away but in another pull itll pop up again.. I feel as though im pretty low on the timing.. one pull I can get barely any knock maybe .4 and another pull I could have 2.2 counts its just never consistent.. another problem is my logged fuel pressure will go to 65 then drop to 60-62 but afr holds steady not sure if bad sensor or what but im running 30psi so I should be logging around 73psi fp.. with the pump activated thru link and the car off if I crank the adjuster on afpr I have no problem getting it above 75psi but during a pull it doesn't seem to go over 65 and drop a couple psi and hold..
stock 7bolt motor
pump 93 octane
hx40 bep .55
bc272 cams
2150cc injectors
walbro 255 rewired
aeromotove afpr
no boost leaks
base timing last I set it was at 5btdc nothing has changed unless it adjusted itself
compression test good 170,170,175,165
plugs br8es gapped to .24
base fuel pressure 43
here is a log of 3 3rd gear pulls each one different knock.. after this log I lowered timing 1 more degree and the next pull was the same with knock but I didn't save that pull.. it just seems no matter what I have knock.. last thing im gonna try is to run zero out the timing up top and see what that does.
stock 7bolt motor
pump 93 octane
hx40 bep .55
bc272 cams
2150cc injectors
walbro 255 rewired
aeromotove afpr
no boost leaks
base timing last I set it was at 5btdc nothing has changed unless it adjusted itself
compression test good 170,170,175,165
plugs br8es gapped to .24
base fuel pressure 43
here is a log of 3 3rd gear pulls each one different knock.. after this log I lowered timing 1 more degree and the next pull was the same with knock but I didn't save that pull.. it just seems no matter what I have knock.. last thing im gonna try is to run zero out the timing up top and see what that does.