LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

Exhaust cut-out make e.t. faster?

Old Jul 2, 2003 | 09:13 PM
  #1  
Speedy T/A's Avatar
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From: Southlake,TX,, U.S.
Exhaust cut-out make e.t. faster?

On the adviertisements they say it makes you .2 sec faster... but i have heard a few people say slower.
Old Jul 2, 2003 | 09:34 PM
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Javier 94 Z28's Avatar
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I got about that.
Old Jul 2, 2003 | 09:47 PM
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Derrick Redd's Avatar
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I gained 7 RWH with the cutout open on the dyno. Should at least be worth a tenth.
Old Jul 2, 2003 | 10:44 PM
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I gained 9 rwhp, Just get one you won't be sorry!!!
Old Jul 2, 2003 | 11:00 PM
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before cut out I ran consistant 14.0 @ 97 2.0 60's
after cut out Ive run consitant 13.8 @ 98 2.0 60's

Old Jul 2, 2003 | 11:25 PM
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cutout will give u a good 1-2 tenths
Old Jul 2, 2003 | 11:56 PM
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ditto on all of the above. worth the money for sure
Old Jul 3, 2003 | 12:34 AM
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I did 4 runs with cutout open the 4 with it closed, it averaged about .15 sec and 1.5 mph faster...
Old Jul 3, 2003 | 03:29 PM
  #9  
Speedy T/A's Avatar
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thanks guys. did yall put it right after the converter or right before teh muffler?
Old Jul 3, 2003 | 04:06 PM
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I put mine where the cat used to be. It kinda vibrates alot, but I mainly use it at the track anyway.
Old Jul 3, 2003 | 04:51 PM
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'94 Bad A Z28's Avatar
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I put mine right before the bend in the axel to go over the rear, I love it, sounds great... No track times yet... But I won't know what I got from the cut-out alone because since I ran my best time, in my sig, I have added a 2800 stall torque converter, 28lb injectors, the cut-out, and a NX Wet Kit! (50-150, jetted for 100 right now. )
Old Jul 3, 2003 | 10:27 PM
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i ran 14.1@97 with cutout closed, then opened it and ran a 13.8@99. but i know i could of reached at least a 13.7 and now a 13.6 with my free ramair mod....hopefully! but definately get one, i get tired of my quiet flows but during the weekend its all fun with it open. 97ws6 nice car btw got one like it but w/out ramair.
Old Jul 3, 2003 | 10:51 PM
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Originally posted by street demon2k3
i ran 14.1@97 with cutout closed, then opened it and ran a 13.8@99. but i know i could of reached at least a 13.7 and now a 13.6 with my free ramair mod....hopefully! but definately get one, i get tired of my quiet flows but during the weekend its all fun with it open. 97ws6 nice car btw got one like it but w/out ramair.
You put the scoop underneath your car? I just did, let me know of what difference it makes.
Old Jul 3, 2003 | 11:00 PM
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From: palmview, TX (RGV)
yeah i did it a few weeks ago, cut the black thing under the radiator and all, definately makes a difference especially at higher speeds when it just shoves all that air into the filter. i really like it i would think maybe 1-5 hp given the right conditions. when i go to the track ill post some #'s, maybe in about early august by then all this rain would have stopped.
Old Jul 3, 2003 | 11:32 PM
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I agree with you bud, this rain!

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