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Old 11-16-2010, 11:55 AM
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Quote:
Originally Posted by blykins View Post
I agree Dave.

Engine builders have to sell engines and the numbers tell the story.

I do have a few of my engines that go to the drag strip though and there are rough calculations to see if the engine is really making the power it's supposed to make based on ET's and trap speeds. So if I provide a dyno sheet that says 600hp and the car runs a 9 second 1/8th mile.....something's wrong........

I do believe that a Cobra eats a little more horsepower than the usual application. A Cobra exhaust (with collector-less headers that have sharp 90° bends at the end going into golfball sized mufflers) consumes a LOT of horsepower.
Understand, but "my" Cobra's is running perfect merge collectors, 2" primaries, true 3" flow path and well radiused bends, although not equal length primaries. It was also chassis dyno'd with no air filter and still achieved a pathetic 474 rwhp, in spite of it's "600" Hp rating.

Just to let everyone know, you didn't build it and truth be known, I'm not upset with who did. I further understand that if you (or anyone else) wants to be competitive in a market you have to use the same "standards" as the competition does or you'll shrivel and die. Kudos to you (unlike the other forum builders) for being willing to openly discuss these issues that have positive and negative conentations...
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