What should I look for the explain this KR?
TECH Senior Member
Joined: Nov 2001
Posts: 7,036
Likes: 1
From: Lake Zurich, IL
maybe I'm mesreading it... but I'm not seeing 28-29* of timing...... the first chart looks maybe 20* or so?
2nd he had knock on tip in (started right at wot)
plus 28-29* of timing on a well tuned car isn't that bad.... about high medium.... (22-23 is about stock for 01/02 cars and is too low)
Send me your scans... I'll try to look them over
2nd he had knock on tip in (started right at wot)
plus 28-29* of timing on a well tuned car isn't that bad.... about high medium.... (22-23 is about stock for 01/02 cars and is too low)
Send me your scans... I'll try to look them over
The 2nd one shows 23.5* and 5.1* of KR. So thats close to 29* of timing.
Ive never been able to run that much timing up top, the most I could get was about 26-27*. If you can run that much timing up top on stock heads, that would be interesting to know how, are you running below 12:1 AFR? Im running about 12.5:1 and 26* is about where I got to be a good spot.
Dixit
Ive never been able to run that much timing up top, the most I could get was about 26-27*. If you can run that much timing up top on stock heads, that would be interesting to know how, are you running below 12:1 AFR? Im running about 12.5:1 and 26* is about where I got to be a good spot.
Dixit
its probably tip in like horist was saying also I noticed your going from 0 to 100 tps very quickly then back again several times thats asking for problems not just on the engine but the whole driveline rear end and all something is gonna break with any sort of traction. The kr could be mechanical noise from parts banging pulsing the throttle like that are you trying to get it to knock.
Originally Posted by Dixit
He's going from 0 to 100 tps and back down because he is shifting. If you look at the RPM chart you can see he is shifting and going up and then shifting.
Dixit
Dixit
please disregard stupid previous post
on the kr though do you have enrichment rate set to 1.00 if not I would try that
Last edited by 02sierraz71_5.3; Aug 24, 2005 at 09:46 PM.
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check your knock sensor calibrations and make sure they all look inline, that is if its been tuned before. we were trying to figure out some mysterious knock on a 383 and all the settings were wrong from previous "professional" tune
Originally Posted by WS6FirebirdTA00
check your knock sensor calibrations and make sure they all look inline, that is if its been tuned before. we were trying to figure out some mysterious knock on a 383 and all the settings were wrong from previous "professional" tune
