Did some dyno runs today....new supersprint headers are on the way and I wanted to get some stock readings before going ahead with the install and tune. I'm pretty happy with the results. The three best runs are below, two in 4th gear and the best in 5th producing 339.85...but we can call it 340 since my math teachers always told me to round up. :grinyes: Stock engine w/ timmay signature muffler delete.
I wanted to get some opinions on my A/F ratio from those of you that have dyno'd their cars before and/or know what's normal. John at Carburetor Connection ( High Performance Auto Services | Hemi - BMW - Corvette/Camaro - Car/Truck - Carburetor/Smog Repair ),very friendly and quite knowledgeable with BMW's, thinks it might be running a bit lean and suggested I look into swapping the fuel filter and doing another dyno run before the headers go on. We decided the best thing to do would be to post the results here and get some feedback from the board in order to decide if it's normal or not. What do you guys think?? She has 47,157 miles with original fuel filter.
Graphs/photos/videos below. *edit - added a better A/F graph on at the end so you can see the #'s better*
Thanks,
JC
Run 3 - 4th Gear
Run 4- 4th Gear
Run 5- 5th Gear
I wanted to get some opinions on my A/F ratio from those of you that have dyno'd their cars before and/or know what's normal. John at Carburetor Connection ( High Performance Auto Services | Hemi - BMW - Corvette/Camaro - Car/Truck - Carburetor/Smog Repair ),very friendly and quite knowledgeable with BMW's, thinks it might be running a bit lean and suggested I look into swapping the fuel filter and doing another dyno run before the headers go on. We decided the best thing to do would be to post the results here and get some feedback from the board in order to decide if it's normal or not. What do you guys think?? She has 47,157 miles with original fuel filter.
Graphs/photos/videos below. *edit - added a better A/F graph on at the end so you can see the #'s better*
Thanks,
JC
Run 3 - 4th Gear
Run 4- 4th Gear
Run 5- 5th Gear
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