Reducing drone with TSP TD setup
Thread Starter
TECH Enthusiast
iTrader: (71)
Joined: Sep 2004
Posts: 516
Likes: 0
From: Central Illinois
Reducing drone with TSP TD setup I'm looking to try and reduce, if not eliminate, the interior drone associated w/ my TSP TD setup. I have already added some disc-type baffles before the mufflers. It did quiet it down some, but really didn't do much for the drone. I am thinking of switching out the 24 in. dynomax bullets for some 18 in. sweet thunders. I then found some 90 deg. round-to-oval transitions (the oval pipe should help significantly with clearance) I would like to use to run the dumps in front of the rear tires. I assume the added bend combined with having the exaust exit somewhere besides underneath the car would help significantly.Has anybody done this? Any thoughts?
P.S. I absolutely LOVE the look of having the exhaust run in front of the rear tire.
P.S. I absolutely LOVE the look of having the exhaust run in front of the rear tire.
your idea of side exhaust would help the drone some. it would still be loud as *****. i used to have TSP duals. but i sold it and bought an ory instead. if i were you, i would save a little $ and have a good shop run it out the back, it will still be loud on the outside, but the sound will be behind you, and it wont be echoing off the car and the road
Thread Starter
TECH Enthusiast
iTrader: (71)
Joined: Sep 2004
Posts: 516
Likes: 0
From: Central Illinois
It really isn't how loud it is that bothers me. The baffles I installed took care of that. I just want the deep drone that rattles my fillings reduced...especially since I am going heads/cam soon and don't see that helping much.
Just try rotating the turndowns about 45* from straight down, I hear this helps. You can do it w/ TSP duals by bending the hangers and slipping the mufflers back on.
Originally Posted by TheBlurLS1
Just try rotating the turndowns about 45* from straight down, I hear this helps. You can do it w/ TSP duals by bending the hangers and slipping the mufflers back on.
-J
Trending Topics
Whaaaaaat? I bent a 3/8" rod the other day like it was nothing using my Mapp Gas torch. I thought it was going to be a bitch, but it was easy. Were you using one of these? 
Now that I think about it, I was making an exhaust hanger.
Now that I think about it, I was making an exhaust hanger.
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo
TECH Regular
Joined: Nov 2006
Posts: 444
Likes: 0
From: Westampton, NJ
if you want the drone gone your probably gonna have to take it out the rear/side. i remember i had a dump on my old car (srt-4) and it rattled all the change/anything in the cup holders and damn near shook my bowels loose...lol sounds great but not the best for a DD. thats why i ordered sidepipes for the GTO
Originally Posted by TheBlurLS1
Whaaaaaat? I bent a 3/8" rod the other day like it was nothing using my Mapp Gas torch. I thought it was going to be a bitch, but it was easy. Were you using one of these?
Now that I think about it, I was making an exhaust hanger.
Now that I think about it, I was making an exhaust hanger.
No I used the Mapp gas torch, dunno what it was about it but it was no walk in the park. Oh well the way the mufflers mounted to my car they were angled out anyway. 
-J
Thread Starter
TECH Enthusiast
iTrader: (71)
Joined: Sep 2004
Posts: 516
Likes: 0
From: Central Illinois
I already did that...had them at a 45* angle. It was actually pretty easy to do. I think I did one without heating it and one I used the oxy-acetylene torch...bent like a wire hanger. 
It helped, but it still rattles the interior at certain RPM's. I even heard that cutting the turndowns completely off would solve the problem...didn't work.
I'm gonna try switching to ST's and running it in front of the rear wheels. I was just curious if anyone else had already done one or the other and noticed a difference.
It helped, but it still rattles the interior at certain RPM's. I even heard that cutting the turndowns completely off would solve the problem...didn't work.I'm gonna try switching to ST's and running it in front of the rear wheels. I was just curious if anyone else had already done one or the other and noticed a difference.
Like said, you won't get rid of the interior drone no matter what you do if you leave it dumped under the car....running it out in front of the rear tires or out the back is the only way to totally get rid of it. BTW, have you priced oval tubing?....dat chit is $$$$$!!
Thread Starter
TECH Enthusiast
iTrader: (71)
Joined: Sep 2004
Posts: 516
Likes: 0
From: Central Illinois
Originally Posted by jmm98LS1
Like said, you won't get rid of the interior drone no matter what you do if you leave it dumped under the car....running it out in front of the rear tires or out the back is the only way to totally get rid of it. BTW, have you priced oval tubing?....dat chit is $$$$$!!
The round-to-oval 90* transitions I need are $50 a piece. 