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What and where to get exhaust
Posted: Wed Oct 21, 2009 4:15 pm
by me3@neuralfibre.com
I need to put a new exhaust on the cruiser.
It needs to be custom due to the aftermarket turbo and long range fuel tank.
the tossup is (I'm a cheapskate)
2.5" press bend (no idea on price)
3" press bend (no ideo on price)
3" mandrel (welded - $850+)
3" mandrel bend (Beaudesert $1050)
My questions are
a) What have ppl paid for a 2.5" and 3" press bend system?
b) Where in BNE does "cost effective" systems?
c) Whilst a 3" mandrel flows best, does it matter for a 10PSI 1HZ that rarely gets over 3000RPM.
d) Would the 3" reduction in backpressure make any significant effect on EGT?
e) How do I keep the turbo whistle / spool, but not keep the diesel drone / roar? I do love the note of 3 feet of exhaust pipe and nothing else.
Thanx
Paul
Posted: Wed Oct 21, 2009 6:20 pm
by ISUZUROVER
I paid $500 for a 3" mandrel bent exhaust with custom dump pipe and 1 muffler. I supplied the flex joint, laser cut dump pipe flange and 1 mandrel bend. Took the guy 2 weeks (between jobs), but the dump pipe and the section between the bellhosing and chassis were very tricky.
In Brisbane I used to go to right price exhausts at slacks creek. Last one I got there was $250 for a complete 2.5" press-bent system, but that was a while ago...
I am sure you will notice the difference with a mandrel bent system.
I am disappointed - no aluminium and pop rivets this time??? A 1" exhaust would be the lightest option if you want to save weight
Posted: Wed Oct 21, 2009 8:11 pm
by ledgend80
i say just get the beaudesert 3 inch system
Posted: Thu Oct 22, 2009 7:16 am
by me3@neuralfibre.com
ISUZUROVER wrote:A 1" exhaust would be the lightest option if you want to save weight
3' of 3" pipe out behind the front wheel saves weight and sounds sweet too
I suspect mr plod may disagree.
Paul
Posted: Thu Oct 22, 2009 8:02 am
by chunks
ledgend80 wrote:i say just get the beaudesert 3 inch system
Ditto. Will do everything you want including keep the turbo whistle without the drone. Don't waste your time with press bends or 2.5" system, just go the 3" mandrel bent system and do the job once.
Posted: Thu Oct 22, 2009 8:31 am
by GRIMACE
just get a whole bunch of prebends and some pipe and rivet the whole lot together!
Posted: Thu Oct 22, 2009 10:18 am
by 80's_delirious
3" mandrel bent. to stop the drone, fit the largest full flow straight through muffler you can fit on it.
ps. I'm a cheapskate too, but dont like to be pennywise pounds foolish. the cost difference will be minimal between 2.5 and 3"
Posted: Thu Oct 22, 2009 2:16 pm
by paulm958
chunks wrote:ledgend80 wrote:i say just get the beaudesert 3 inch system
Ditto. Will do everything you want including keep the turbo whistle without the drone. Don't waste your time with press bends or 2.5" system, just go the 3" mandrel bent system and do the job once.
X3
put the beaudesert on the 79 (3 inch mandrell and dump) could not have been happier,
Great service and backup super easy fitt, aprox 3hrs (old pipe off new one on)
So happy ended up ordering another one a week later for my 100 Sahara,
i understand your on a budget but you get what you pay for, and you may even get a little back on resale