Borla exhaust dyno question
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Re: Borla exhaust dyno question
some magazine did it a few yrs back, on an LT1 i think... full open gave most HP, middle size hole gave similar HP with a bit more TQ at low rpm's, and the small hole gave most TQ, but less HP...
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Re: Borla exhaust dyno question
i have. I dont remember the numbers off hand, but I do remember that the spread from the highest to lowest was 3hp and 4ftlbs. and that, oddly enough, wide open was the weakest of all. I belive that the 2.5 inch plate was the best, but Im not 100% sure.
the curves were so similar that it was difficult to tell them apart.
If I ever find the dyno sheet Ill post the numbers
the curves were so similar that it was difficult to tell them apart.
If I ever find the dyno sheet Ill post the numbers
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Re: Borla exhaust dyno question
its mostly a sound thing... i doubt u would ever notice a difference in 3hp... its all in how u want ur car to sound... quiet for the commute and neighborhood, medium for "cruising", and open for the track...
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Re: Borla exhaust dyno question
the only place i ever noticed any difference at all was JUST off idle with the stock gears. i couldnt feel it exactly, but I noticed that the amount of gas and clutch i had to give from closed to open was different. im sure that this could have been fixed with a littel tuning, but it wasnt worth it to me.... going to 3.73's made it pretty much unnoticable.