3800 Swap (Page 2/3)
olejoedad FEB 03, 07:48 AM
Wrapping the entire exhaust, including the muffler, with header wrap helps reduce the drone.
TXGOOD FEB 03, 09:28 AM
Thanks guys, I may try silencers in the tips.
I really don`t want to wrap the exhaust because of it being stainless, plus I had the exhaust manifiolds
ceramic coated to stay away from header wrap.
olejoedad FEB 03, 10:30 AM
We've tried the silencer cones, stuffed them with steel wool, inverted the cones.....they don't help much.

Wrapping the exhaust did more for the drone than anything else.

The best system we've found involved two Jones turbo tubes split from the rear manifold, on for each tip. No drone, and it didn't sound like a 4.3 pickup truck with a hole in the exhaust like most 3800 cars.
TXGOOD FEB 10, 07:18 AM
I got a stainless steel cone baffle from Summit and it seems to work pretty well.
I haven`t taken the car on the highway but just idleing and reving it up the exhaust has a more
tuned sound without that harshness. I installed it just inside the downpipe.

[This message has been edited by TXGOOD (edited 02-10-2022).]

Australian FEB 25, 03:48 AM
The l67 isn't known for sounding any good i wouldn't worry too much as it won't sound like other motors.
Dennis LaGrua FEB 25, 09:05 AM

quote
Originally posted by olejoedad:
Wrapping the exhaust did more for the drone than anything else.


That what we found out after we even tried exhaust tip resonators. Made a huge difference.

------------------
" THE BLACK PARALYZER" -87GT 3800SC Series III engine, custom ZZP /Frozen Boost Intercooler setup, 3.4" Pulley, Northstar TB, LS1 MAF, 3" Spintech/Hedman Exhaust, P-log Manifold, Autolite 104's, MSD wires, Custom CAI, 4T65eHD w. custom axles, Champion Radiator, S10 Brake Booster, HP Tuners VCM Suite.
"THE COLUSSUS"
87GT - ALL OUT 3.4L Turbocharged engine, Garrett Hybrid Turbo, MSD ign., modified TH125H
" ON THE LOOSE WITHOUT THE JUICE "

weaselbeak MAR 04, 09:44 PM
There is no reason that I know of for exhaust wrap to be a problem with stainless. I have a short section of stainless that has been under wrap for over a dozen years. I wrap stainless custom pipes on motorcycles without issues as well.
TXGOOD MAR 15, 09:03 AM
I was finally able to pull my front springs yesterday afternoon and took a 1/2 coil out of the left side and 5/8 coil out of the right side, as it sat a bit taller than the left side.
I`m pleased with the front height now.
Newbfiero MAR 15, 06:17 PM
Nice looking ride 👍 Rob
TXGOOD MAR 15, 07:21 PM

quote
Originally posted by Newbfiero:

Nice looking ride 👍 Rob



Thanks