Reducing resonance
Thread Starter
Team Owner
Joined: Apr 2001
Posts: 22,267
Likes: 3
From: Dallas TX
You guys know my vette has quite the resonance.. just as R94LT1. Today I decided to throw two pillows in the back to see if that would help reduce it more (relying on the same principle as the pillow in a bass drum to reduce resonance and reverberation). It seemed to do a pretty good job, nothing near a Lexus though.
Any other ideas I could try? I already replaced the carpeting and put dynomat back there. I have Flowmaster exhaust.
Any other ideas I could try? I already replaced the carpeting and put dynomat back there. I have Flowmaster exhaust.
Burning Brakes
Joined: Apr 2001
Posts: 799
Likes: 1
From: Fremont CA
I used the crossover Y-pipe for my L98. Worked really well. But that might not apply to an LT1. Maybe someone makes something similar??
Hmm... just checked your website, and you have an H-pipe listed... And Dynamat... Only other thing I can think of would be stock mufflers!
Sorry I can't be of any (more) help.
Hmm... just checked your website, and you have an H-pipe listed... And Dynamat... Only other thing I can think of would be stock mufflers!
Sorry I can't be of any (more) help.
Thread Starter
Team Owner
Joined: Apr 2001
Posts: 22,267
Likes: 3
From: Dallas TX
I don't know. I would assume they are 40 (2 chamber). They came already on the vette when I bought it and when I took off the exhaust for some work, I didn't see any model numbers or anything. I've heard the 3 chamber on trucks before and it seemed quiter than the 2 chamber's I've heard. I'm not sure about the resonance with those though.
[This message has been edited by Glock'94 (edited 07-19-2001).]
[This message has been edited by Glock'94 (edited 07-19-2001).]
Melting Slicks
Joined: Dec 2000
Posts: 2,719
Likes: 60
From: Fremont Oh
You should be safe with the 3 chambers, they are quieter than the 2 chambers.
I had 3 chambers on my 87, and 89 they were fine with a 3.07 rear end.
On my 95 i had 2 chambers and lost the resonator. It had 2.59's it was not bad...
My 96 I had resonator and two chambers with 3.07's and it was pretty intolerable...
I recently went to a new system, I'll be telling everyone soon its in development and i'm under a NDA.. all I can say is so far it is totally awesome... stand by i'll keep ya'll posted...
Mo
I had 3 chambers on my 87, and 89 they were fine with a 3.07 rear end.
On my 95 i had 2 chambers and lost the resonator. It had 2.59's it was not bad...
My 96 I had resonator and two chambers with 3.07's and it was pretty intolerable...
I recently went to a new system, I'll be telling everyone soon its in development and i'm under a NDA.. all I can say is so far it is totally awesome... stand by i'll keep ya'll posted...
Mo
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Thread Starter
Team Owner
Joined: Apr 2001
Posts: 22,267
Likes: 3
From: Dallas TX
Originally Posted by bogus
this is an interesting conversation...
from what I have heard, the corsa cat back will remove the resonance.
I am curious what muffler eliminators would do... any guesses?
[/color]
from what I have heard, the corsa cat back will remove the resonance.
I am curious what muffler eliminators would do... any guesses?
[/color]
Instructor
Joined: Apr 2001
Posts: 199
Likes: 0
From: Guyton, Ga.
Finally got tired of the Flowmaster res. Went and ordered some Dyna Max welded Ultraflo mufflers 2.5 center in/out. VERY NICE change I can myself think the only res. is at 1200 RPM but goes away quickly car feels faster, but is a little louder under full throttle, but I'm going to fast to hear it.
Thread Starter
Team Owner
Joined: Apr 2001
Posts: 22,267
Likes: 3
From: Dallas TX
I already have an H-pipe, but it is right before where the resonator used to be. I was thinking an X-pipe eventually. I've heard from lots of people that the X-pipe reduces resonance a LOT.