Exhaust for Drag Racing?
What exhaust size will get me the best times in the quarter mile. I have heard that a bigger exhaust allows more flow which results in better times, but i'm not sure. Could someone give me some pointers on this one?
Jonathan |
RE: Exhaust for Drag Racing?
but you dont want to go too big, i wouldn't say any bigger than 2.5"piping all the way back, 3" may be too much and you'll lose back pressure and horsepower
i would stick with 2.5 and just free it up a little ie. get rid of u bend high flow cat get rid of resonator high flow mufflers (like magnaflow or something) maybe look into mandrel bent exhaust for the least amound of bends |
RE: Exhaust for Drag Racing?
ORIGINAL: wiz kidd but you dont want to go too big, i wouldn't say any bigger than 2.5"piping all the way back, 3" may be too much and you'll lose back pressure and horsepower i would stick with 2.5 and just free it up a little ie. get rid of u bend high flow cat get rid of resonator high flow mufflers (like magnaflow or something) maybe look into mandrel bent exhaust for the least amound of bends |
RE: Exhaust for Drag Racing?
actually brock that might not work out well for times. you have to place it very strtegically becuase you can loose back pressure and then loose out on the barametric pressures making it harder for the enigne to exhale and breathe. this is shown best in a turbo. but the turbo will then make more psi and more power so it is beneficial and outwheighs all the restrictions form it
for the cut out find someone who has one and see what happened. if not you might be better off just improving your flow like others have stated before, the ubend resonator etc.... and stay bellow a three inch exhasut. some headers and a down pipe will help :) |
RE: Exhaust for Drag Racing?
just do as wiz kidd, your first replier did. i used to get caught up on what exhaust was best.. but i've learned that you really don't pick up any noticable difference, you never really make any more power with magnaflows than flowmasters, no more with dynomax than with straight piping. just pick the exhaust that sounds the best and go with it.
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RE: Exhaust for Drag Racing?
just pick the exhaust that sounds the best and go with it. What exhaust size will get me the best times in the quarter mile. |
RE: Exhaust for Drag Racing?
i was also going to mention cut out. those do increase HP as long as pressure can be kept. I wouldnt go to 3" and do a cutout, in fear or not having enough pushing back.
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