best spot for cutout
03-04-2006, 09:04 PM
#1
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best spot for cutout where would be the best spot to weld in a electric cutout a ory, i currently have a catted slp 3 inch y. but i want the car louder i figure a cutout with cats just doesn't sound right.
03-05-2006, 11:53 PM
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I just put mine in. Most people do it the way I did....after all, if you look on the underside of your car you notice that indentation right where my cutout is....looks GM put that indentation there for a reason! 
Manny
Manny
03-06-2006, 12:15 AM
#6
Originally Posted by Redneck Z
A cutout without cats sounds horrible in my book. From a performance perspective, you don't want to have a cutout before the cats. It would be better after the y merge.
03-06-2006, 02:37 AM
#7
Originally Posted by ArcticZ28
I'm not really sure how you'd get better peformance putting a cutout after the cats as compared to before. You can't be talking in terms of flow. Are you referring to the cutouts interfering with the readings the O2's will get if there are pre-cat cutouts?
The y-merge is needed to help scavenging. You take the benefits of scavenging out of the equation when you put the cutout before the merge. I'd think it would also be harder to tune with the cutouts being so close to the front O2's(assuming LT's). The O2's would sense a lean condition and dump more fuel in. He'd probable need one tune for the cutouts closed, and one for when they are open. If he has shorty headers then he won't be able to fit cutouts before the cats anyways. If he has longtubes, then he might be able to fit the cutouts in before the cats depending on location. I know that I've heard of hp losses when putting cutouts that far upstream. why not just go with a proven location?
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03-06-2006, 06:52 AM
#10
Originally Posted by Redneck Z
The y-merge is needed to help scavenging. You take the benefits of scavenging out of the equation when you put the cutout before the merge. I'd think it would also be harder to tune with the cutouts being so close to the front O2's(assuming LT's). The O2's would sense a lean condition and dump more fuel in. He'd probable need one tune for the cutouts closed, and one for when they are open. If he has shorty headers then he won't be able to fit cutouts before the cats anyways. If he has longtubes, then he might be able to fit the cutouts in before the cats depending on location. I know that I've heard of hp losses when putting cutouts that far upstream. why not just go with a proven location?
03-06-2006, 10:35 AM
#11
Originally Posted by Redneck Z
The y-merge is needed to help scavenging. You take the benefits of scavenging out of the equation when you put the cutout before the merge. I'd think it would also be harder to tune with the cutouts being so close to the front O2's(assuming LT's). The O2's would sense a lean condition and dump more fuel in. He'd probable need one tune for the cutouts closed, and one for when they are open. If he has shorty headers then he won't be able to fit cutouts before the cats anyways. If he has longtubes, then he might be able to fit the cutouts in before the cats depending on location. I know that I've heard of hp losses when putting cutouts that far upstream. why not just go with a proven location?
orange - I have a 408 setup with LT/ORY/LM... even a pre-cat cutout would sound better
03-06-2006, 05:11 PM
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how will it sound after the cat i'm putting in a hot cam as well how close will it sound to an open ory. thats how my last car with a hot cam was and it sounded mean.
