Exhaust sounds terrible.....
Exhaust sounds terrible..... HELP! I just recently fired up my newly-completed t-76 fed 5.3 project, and the exhaust sounds like an old POS Ford pickup(with crappy glass packs)!
I used 3" stainless that goes over the rear axle and splits into 2 three-inch Spintechs. It sounds good, until it's under load....then it just gets rude sounding. I'll try to post a video here later to help illustrate what I'm talking about. I just ordered a Vibrant 3" "ultra quiet" resonator, and am hoping that this will help mellow it out a little.
So, I'm wondering what types of exhaust setups have been used on single-turbo cars that will keep the tone more tolerable without causing too much restriction for a car that is aiming for 15psi. Any ideas??
Update: added video link...
http://www.youtube.com/watch?v=rLCilTCV0qw
I used 3" stainless that goes over the rear axle and splits into 2 three-inch Spintechs. It sounds good, until it's under load....then it just gets rude sounding. I'll try to post a video here later to help illustrate what I'm talking about. I just ordered a Vibrant 3" "ultra quiet" resonator, and am hoping that this will help mellow it out a little.
So, I'm wondering what types of exhaust setups have been used on single-turbo cars that will keep the tone more tolerable without causing too much restriction for a car that is aiming for 15psi. Any ideas??
Update: added video link...
http://www.youtube.com/watch?v=rLCilTCV0qw
Last edited by salemetro; Apr 19, 2011 at 10:34 PM. Reason: added video link
Most ls motors are raspy sounding but I can imagine yours. Sounds like cherry bomb mufflers right? I hate that sound as well. I'm running the adjustable borla exhaust with the plates with different sized holes to bypass the muffler and control the sound. I have it all going thru the muffler. Prrs like a kitten, smooth mellow tone cruising, no resonance whatsoever. Its kind of restrictive that way tho and one tail pipe does nothing at all. BUT I have an electric exhaust cutout up front under the passenger floor. Best of both worlds, sleeper quiet or drag race open headers!
See updated first post for video link....
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you need to remove the chambered mufflers, period. things are entirely different with a turbo setup. you really only need a small muffler with a turbo setup anyways, and it needs to be straight through. run it with no mufflers and you'll see what i mean.
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Verdad Gallardo Thanks for the input.
Dynomax ultra flow, magnaflow race mufflers, hooker maxflow, dynatech or borla xr-1. Lots of mustang guys like dynomax ultra flow ss mufflers. That vibrant resonator won't do much.
I have a full 3" exhaust after my turbo and the only thing quieting it is a 3" resonator. Sounds perfect. I ran it without the resonator at first, and while it sounded great at idle, it popped and rasped like hell soon as I got over 2200.
Here's my setup from the back. It's a mandrel 4" with a 4" MagnaFlow then over the axle and capped as seen in the completed picture below. It "T"s of 3" thru a 3" Borla XR1 and out the drivers side. VERY Quiet. I have run 9.31 in the 1/4 with it capped on 17 psi.
The pump has been relocated.
The pump has been relocated.
