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      09-24-2012, 01:39 AM   #20
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Drives: Harrop M3 / F10 M5 / F82 M4
Join Date: Apr 2008
Location: SoCal

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Garage List
2000 BMW M5  [0.00]
1990 BMW 735i Turbo  [0.00]
2008 BMW M3  [7.50]
2015 BMW M3  [0.00]
2015 BMW M5  [0.00]
Quote:
Originally Posted by brisance View Post
I don't see any exhaust evacuation fans in those pics. From what you've said about that Honda motor being worked on at the same time it might be worth a few extra HP if the air was clean.

What fuel was used? I know the M3 has the ion sensors on the plugs... was any other knock monitoring device used?
91 Octane fuel, Chevron specifically. Got there with about 1/4 tank and didn't use much because I still managed to drive home on it

I was listening for knock audibly and couldn't hear a single ping. Reading data from the car afterward didn't show much timing retard. We did have a pretty massive fan in front of the car, and yes I would have loved it if there was less exhaust gas re-circulation!
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