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Intake, Header, HFC, CBE = Too Lean?

Originally Posted by Red370 Did some datalogging today, here are some numbers i'd like you guys to take a look at, I did a few 1st gear WOT runs just

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Old 03-26-2010, 01:03 PM   #1 (permalink)
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Did some datalogging today, here are some numbers i'd like you guys to take a look at, I did a few 1st gear WOT runs just to get an idea of what my AFR's were looking like, take a look.. The Mid 14's at 6500rpms make me nervous..

Columns:
1. Seconds 2. Coolant temp 3. Intake temp 4. Ignition Advance 5. Oil Temp 6. RPMs 7. MAF 8. Vehicle speed 9. AFR 10. AF Correction

Hmm...kinda hard to tell. I think you need to sort the data. The rpm isn't showing from lowest to highest. Plus, it's only showing what appears to be a narrow slice of the rpm range in the 6000's.

If it helps you at all, here's my latest dyno showing AFR, and this was after getting a tune so the AFR is adjusted to where it ought to be.

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Old 03-26-2010, 01:08 PM   #2 (permalink)
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Hmm...kinda hard to tell. I think you need to sort the data. The rpm isn't showing from lowest to highest. Plus, it's only showing what appears to be a narrow slice of the rpm range in the 6000's.

If it helps you at all, here's my latest dyno showing AFR, and this was after getting a tune so the AFR is adjusted to where it ought to be.

In addition, first gear is a poor one to get decent logs from. You really want the car under load. Suggest 3rd gear or higher if you have the room..
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Old 03-26-2010, 01:09 PM   #3 (permalink)
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In addition, first gear is a poor one to get decent logs from. You really want the car under load. Suggest 3rd gear or higher if you have the room..
I missed the part about being in 1st gear.
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Old 03-26-2010, 01:29 PM   #4 (permalink)
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In addition, first gear is a poor one to get decent logs from. You really want the car under load. Suggest 3rd gear or higher if you have the room..
Oh ok, i'll try to get it out on the highway after work and post my results. Sorry for the shytty excel numbers, i'd sort the numbers to descending but I dont have the full version
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