03-30-2010, 04:56 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 greg schroeder
I think if you put enough engines out there with enough people abusing things you'll get some failures. Not sure why yours would do this, but generally improper break in and pushing the engine cold cause issues. How many people pick up their car and drive off cold and hammer on it? Plenty. You see guys claiming it's fine to run 91 octane fuel all the time too. We read about brand new engines going right to the chassis dynos from installers or even at the installers. I just don't get it, but hey? if Roush wants to pay for foolish use I give them the thumbs up.
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Good point Greg. They've probably built ~2,000 402s/427's, and most end up getting installed in Cobras. If your going to see issues reported, it's going to be here on Club Cobra.
Just curious, what was the minimum octane you would run in your Cobra? All of the major builders advertise that their engines can run on standard pump gas, so why would Roush be any different (unless they're all wrong  ) ?
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Doug
No stop signs, speed limit - Nobody's gonna slow me down - Like a wheel, gonna spin it
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