LT1-LT4 Modifications 1993-97 Gen II Small Block V8

help with tuning

Old Sep 29, 2013 | 04:27 PM
  #1  
simpson1922's Avatar
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Default help with tuning

any exp. turners have time to look at a data log for me. it was made with ecmproscan.
96 z28
bored .040 flat top stock pistons
comp 503 cam
pacesetter mid-lengths no cats
lpe super tube cia
2800 stall
b&m shift kit
2.73 gears
lt4 km
car feels flat thru mid range. if i'm reading the log right the timing is way retarded. the knock sensor is going crazy so the retard tables for that have been zeroed out. i can not get the log to uplaod but will email it to anyone that will help me out

thanks
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Old Sep 29, 2013 | 09:01 PM
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OVA1's Avatar
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Originally Posted by simpson1922
any exp. turners have time to look at a data log for me. it was made with ecmproscan.
96 z28
bored .040 flat top stock pistons
comp 503 cam
pacesetter mid-lengths no cats
lpe super tube cia
2800 stall
b&m shift kit
2.73 gears
lt4 km
car feels flat thru mid range. if i'm reading the log right the timing is way retarded. the knock sensor is going crazy so the retard tables for that have been zeroed out. i can not get the log to uplaod but will email it to anyone that will help me out

thanks

I can't help ya with the tune… but if print the log and either scan it and save it as a photo or take a decent picture of it, you will be able to upload it.
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Old Sep 29, 2013 | 09:20 PM
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Has there been any attempt to properly tune the car or are you stabbing wldly in the dark starting from stock?
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Old Sep 30, 2013 | 11:08 AM
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Roller rockers and headers tend to cause false knock, try detuning the spark advance and relogging to see if it's false knock or not
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Old Sep 30, 2013 | 11:34 AM
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I'm currently paying someone to tune it and not to happy with the results. I know for sure it is all false knock I can run he count up by just rolling in to the throttle in park I have never heard it ping and I've pulled the plugs twice and no signs of detonation. The guy tuning just backing the timing out to get rid of it and it never helps. Finally got him to believe it is false but am getting tired of paying rent on the box from him and getting no where close being done. Would just like someone that knows what they are doing look it over to see what needs done
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