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1hz turbo exhaust size ?

Posted: Sat Oct 18, 2008 4:13 pm
by thomo
As the title say what size exhaust do people use on there's i was planing on 2 1/2 " with one straight thru muffler. Any ideas

Posted: Sat Oct 18, 2008 4:25 pm
by taps
Go a 3", mandrel bends, plumb it all on the inside of the chassis rail, good to go

Posted: Sat Oct 18, 2008 4:52 pm
by RV80
taps wrote:Go a 3", mandrel bends, plumb it all on the inside of the chassis rail, good to go
This is what i'll be doing to mine soon :D

Posted: Sun Oct 19, 2008 8:14 pm
by 80's_delirious
taps wrote:Go a 3", mandrel bends, plumb it all on the inside of the chassis rail, good to go
Did similar with my 80series. 4" dump pipe to the transfer case then 3" all the way back, with one straight through muffler at the rear. all on the inside of the chassis rail.

bends in the dump pipe are about 75deg, all others are 45deg max.
Was way too noisy with no muffler

Posted: Sun Oct 19, 2008 8:36 pm
by Z()LTAN
to much of a good noise then?

Posted: Mon Oct 20, 2008 6:39 pm
by crozza
Mines 2.5 inch mandrel bend with straight through muffler...works perfect.

Dont quote me on this but I have heard if you go to big you will loose the
power effect that an exhaust naturally generates. ....dont know how accurate this is though.

Posted: Mon Oct 20, 2008 7:16 pm
by Winglessjet
crozza wrote:Mines 2.5 inch mandrel bend with straight through muffler...works perfect.

Dont quote me on this but I have heard if you go to big you will loose the
power effect that an exhaust naturally generates. ....dont know how accurate this is though.

Isn't that only on n/a engines? With turbo's the quicker the gas is out the quicker the turbo spools

I am goin to make my exhaust 3 1/2 inch off the turbo and run it back to a 3inch with one muffler