AFR's on the dyno (not 56k friendly)
06-20-06, 03:40 AM
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AFR's on the dyno (not 56k friendly)
Ok, I just got off of the dyno and I have some strange results. I have a dead stock 88TII that I was running for baselines. My AFR's from the tailpipe hit 11 around 3k and drop to 10 and lower during the pull. This seems extremely rich to me, but then again, I have never dyno'd a stock TII. Has anyone else seen AFR's this low on an S4 TII in stock trim?
I'll post a pic when I can figure out how.
I figured out how.
This was one of my better runs, the others are literally sitting at 10.0 in the higher powerband.
Anyone have any thoughts?
I'll post a pic when I can figure out how.
I figured out how.
This was one of my better runs, the others are literally sitting at 10.0 in the higher powerband.
Anyone have any thoughts?
Last edited by Boostmaniac; 06-20-06 at 03:43 AM.
06-20-06, 11:42 AM
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yea seems normal and safe. i wouldn't worry about it and if your car is truly bone stock then your numbers are good and i'd say you have a healthy setup to start with 
06-20-06, 02:47 PM
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I have about 120k miles on this motor, and boost was a steady 5.5 across the board from about 4k to redline. This was from me staring at my boost gauge during the runs.
06-20-06, 05:06 PM
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Originally Posted by jacobcartmill
time for haltech, fuel pump, full exhaust and 250whp.
Yeah Karack, those AFR's look weird to me also. I'll use a new wideband next time.
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