10-03-2010, 11:28 PM
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Senior Club Cobra Member
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Join Date: Oct 2006
Location: Santa Cruz,
CA
Cobra Make, Engine: SPF 2613 Titanium w/Black, Roush 402SR
Posts: 4,097
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Not Ranked
Quote:
Originally Posted by WardL
I have averaged 13 mpg and have a range from 12 to 15 mpg. Roush 427 SRTW, 512HP, 17" wheels, 3.46 rear ratio and 0.82 OD. At 70 MPH I'm turning 2,550 RPM. I just found out my ignition timing total advance is 32 degrees at 4,200 RPM. 16 Deg at 900 RPM.
209 - what kind of cruise control do you have?
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I've got a Roush 402SR and my mileage is exactly the same.
__________________
Doug
No stop signs, speed limit - Nobody's gonna slow me down - Like a wheel, gonna spin it
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