View Full Version : Way to quiet my wastegate, any downside to running back to downpipe?


Fondle
04-23-2012, 09:29 PM
The sound of the wastegate opening and hearing raw exhaust really ruins the awesome sound of the turbo whistle. i want to tone down the exhaust sound of my wastegate, is there any side effects of having the wastegate routed back into the down pipe?

westtexasbuff
04-23-2012, 10:39 PM
I don't think there's a "downside", just personal preference. Haven't seen you in forever Andrew...

http://faststreetcars.com/imgs/turbo-setup.jpg

93camaro_zzz
04-23-2012, 10:45 PM
^ That is really sexy!

Fondle
04-23-2012, 11:00 PM
i thought i had read somewhere that some people claim the turbo spools slower with the wastegate routed into the downpipe

i really want to do this, i can barely hear the turbo over my waste gate once it opens up

30th t/a
04-24-2012, 07:53 AM
The sound of the wastegate opening and hearing raw exhaust really ruins the awesome sound of the turbo whistle. i want to tone down the exhaust sound of my wastegate, is there any side effects of having the wastegate routed back into the down pipe?

I totally agree with you. Ive had both and I prefer having the WG routed back into the exhaust. Much more refined sound.

a4ls2goat
04-24-2012, 09:29 AM
Open wastegate sounds wicked!!

turbo iroc
04-24-2012, 09:35 AM
If your down pipe is on the edge of being too small, I could see the extra exhaust gas from the gate increasing back pressure. If that happens you could have boost control issues. That being said i run my gate back into the dp. 4 " dp 88mm turbo 402ci 44mm gate and have no boost control issues. I don't like the sound of an open gate either.

turbo iroc
04-24-2012, 09:36 AM
You could also put a small muffler on the open gate.

rotary1307cc
04-24-2012, 12:55 PM
with the WG recirculated into the DP it increases the demand on the exhaust system

the further downstream it enters post turbine the better

tta656
04-24-2012, 02:40 PM
A typical modded Buick GN from 1987 runs easy 11's(larger DP,inj,turbo upgrade) and they have dumping into the exhaust at the turbo for decades,a few decades actually..............

no loss of power,just a better sounding whine from the turbo:nod:

SS4Matt
04-24-2012, 08:11 PM
dumped wastegates just sound like an exhaust leak, I think they sound like doo-doo

Mine is ran back into the DP, probably a foot and a half or so down the pipe is where it enters Only two pics I could find with the turbo (among other things) not on the car
http://i40.photobucket.com/albums/e250/MBZim87/ee415668.jpg
http://i40.photobucket.com/albums/e250/MBZim87/121fb52d.jpg

With the turbo on and car in 1 piece you really can't see anything though. I Don't think there is any disadvantage to running it back into the DP, unless like someone above said you're DP is already on the small side, it "might" not help....
http://i40.photobucket.com/albums/e250/MBZim87/IMG_1145-1.jpg