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Dec 22, 2009 | 09:28 PM

#16

Fishin76

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Joined: Aug 2007

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From: Canton, IL

Nope, No one makes them. I'm considering going true duals, but I've heard it's real loud.

Dec 22, 2009 | 09:30 PM

#17

starmilt

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Joined: Oct 2007

Posts: 10,501

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From: Faibanks Ak.

The fumes are actually going straight into the intake. but I do belive the back cylinders avtually get more than their shair and it raises heat if there is enough blowby. It has been said that is the cause of some headgasket failure, It could be it hurts the gp's too.

Dec 22, 2009 | 10:15 PM

#18

bad12jr

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Joined: Dec 2008

Posts: 2,347

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From: Maysville, Kentucky

IDI turbos have no Y pipe unless it has duals after the downpipe. Do the turbo up grade. Get a pyro and boost gauge. Keep it under 1200 degrees. and 12 psi of boost and roll on. Plenty of power. It may not run with a built cummins or dmax but it will run longer and more reliably then both.

Dec 22, 2009 | 10:34 PM

#19

starmilt

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Joined: Oct 2007

Posts: 10,501

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From: Faibanks Ak.

Quote:

Originally Posted by Fishin76

Nope, No one makes them. I'm considering going true duals, but I've heard it's real loud.

If You aren't going with a turbo true duels are the only way to go and don't skimp on the pipe diameter either, good mufflers keep the noise level good.

Dec 23, 2009 | 12:28 AM

#20

Dave Sponaugle

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Joined: Nov 2003

Posts: 21,285

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From: Nutter Fort, WV

I have to point out the original question was for a 94 7.3 turbo engine.

ATS has a down pipe and a turbo outlet flange that increases the pipe ID to 3" from the 2.25" ID Ford used.

ATS left, stock Ford right in both pictures.

Turbo spools faster and higher with the larger pipe.
Exhaust, at least a 3", and a muffler is nor really needed on a turbo motor.

And blacksmokesmile,
Welcome to FTE and the IDI diesel forum.