3 logs... got any suggestions ?
He's saying even though your timing is modest, when compared to 91 octane timing values, your timing is way advanced.
Nonetheless, that last log, the one where you actually floored it, shows you hauling *** - 2.19 sec! You got my 04 beat, for now - widebandedless and 245 40 17 tires. What tires you have on?
Nonetheless, that last log, the one where you actually floored it, shows you hauling *** - 2.19 sec! You got my 04 beat, for now - widebandedless and 245 40 17 tires. What tires you have on?
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From: Spec-Ops Motorsports, Fayetteville, NC
stock size... 235 45 17 i believe ... they are kuhmo ecstas.... the last log i posted i dont think my throttle position was 100 percent either... im going to log a few more runs this afternoon...... its hard to do by yourself sometimes... i will drag my friend along this time. its also pretty warm today so things should be great... c6c6, thanks a lot for taking the time to look at these things for/with me
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next set of logs
... 2 3rd, and 1 4th.... made some minor adjustments in timing and added a bit more fuel ? what do you think about advancing timing a bit in the front a hair ?
... 2 3rd, and 1 4th.... made some minor adjustments in timing and added a bit more fuel ? what do you think about advancing timing a bit in the front a hair ?
In your second 3rd gear log your car get 6-5-4 counts of knock @ peak torque boost (3300-3800). I am no expert, but I suspect that you have too much timing advance in that area. 5-6 counts of knock means that your car pulled at least 2-3* of timing. So your car is struggling to maintain 7-8* of timing in that area.
Is that what you have in your timing map? If so, then that is way too much. Take 2-3 degrees of timing out in that area and see what happens. What is the point of having the timing that high if the ECU will pull it anyway due to the onset of knock?
The same thing seems to apply to your 4th geare pull. Remove some tim ing in the 3200-4000 range and you will have a much happier and maybe faster car.
Is that what you have in your timing map? If so, then that is way too much. Take 2-3 degrees of timing out in that area and see what happens. What is the point of having the timing that high if the ECU will pull it anyway due to the onset of knock?
The same thing seems to apply to your 4th geare pull. Remove some tim ing in the 3200-4000 range and you will have a much happier and maybe faster car.
Originally Posted by bigric09
next set of logs
... 2 3rd, and 1 4th.... made some minor adjustments in timing and added a bit more fuel ? what do you think about advancing timing a bit in the front a hair ?
... 2 3rd, and 1 4th.... made some minor adjustments in timing and added a bit more fuel ? what do you think about advancing timing a bit in the front a hair ?Please post a log of your AFR. I suspect that you might be too lean in the knock areas.
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From: Spec-Ops Motorsports, Fayetteville, NC
no, i mean up top of the table... lower rpm's.... sorry for the confusion. i have already dropped a couple degrees in timing after the last log and added a bit of fuel...
my a/f's are 10.9 to 11.3 in 3rd and 11.0 to 11.1 solid in 4th .... so im not too lean i dont think
my a/f's are 10.9 to 11.3 in 3rd and 11.0 to 11.1 solid in 4th .... so im not too lean i dont think
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From: Spec-Ops Motorsports, Fayetteville, NC
here are the last 2 runs i did tonight... i started to lean out a hair in the upper rpm's but i think its because the temp dropped about 15 degrees from the first few logs... i was hitting 11.6 but mainly 11.3 the whole run...
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