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Old 01-15-2004, 05:43 PM   #10
all stock
Join Date: Jan 1970
Location: Cali
Posts: 376
My Ride: stock 330i
Originally Posted by yy4u
how much boost?
what octane fuel?
What kind of A/F numbers were you seeing?
Boost was set to about 9.5psi. Fuel was a mix of 4 gallons of 110 and about 2 gallons of 91 left in the tank so making octane equal to 103.6. I'm starting to see the limits of the stock fuel system. Fuel pump is being maxed out at this level. I'm surprised the stock fuel pump can handle this much power. I'm sure the pump is going to start getting tired soon. Towards the end of the run, A/F starts going lean to 13.2.
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