11-30-2009, 01:46 PM
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CC Member
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Join Date: Jun 2008
Location: West Suburbs of Chicago,
IL
Cobra Make, Engine: Backdraft#357, 392CI Ford Racing, 459hp, 455ft/lbs , TKO 500, 3.43 Gears, Ceramic Coated Headers, Victor Jr. 750cfm, 17in Halibrand wheels, Sterling Gray/Silver Stripes, Gray Leather, Nitto NT05
Posts: 362
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Not Ranked
Difference in Pipes
native1,
No problem hijacking the post - even though I have DYNO ENVY, you indirectly may have answered something that I asked in another post. Is the only difference the side pipes between the red and blue on the second page of you dyno sheet only due to the change in pipes - without other modifications? I did notice they were not done on the same day. I have been trying to get accurate information on how much hp is lost with the BDR pipes. If you have 570 gross hp and you are picking up 15-20hp (I'll split the diff and say 18hp), then the stock Backdraft pipe lose about 3% to 3.5%. Does that sound right to you?
In my case, with 450hp, I'd net 13hp, seems like an expensive way to pick up power. Your thoughts?
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