STS exhaust suggestions
#12
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Originally Posted by spinz71
Whatever you use, make it big! What happened with mine is that it created boost creep. The exhaust is a restriction and it will cause backpressure all the way back up. I have an 8psi spring but with the exhaust I get 10 psi. I have a 3.5 inch dynomax race (straight thru) welded to the turbine exhaust pipe and dumped over the axle.
Ogkevin, Hows that hideaway intercooler workin out?
#13
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I'll admit I'm not sure how it works. What I do know is that I had the about 10-12 inches of straight pipe after the turbo and was at 8 psi. I put on 21 inches of 3.5in. muffler and a turndown and it went to 10 psi. Nothing was else changed. I can't imagine that being less restrictive. But this truck is so weird it doesn't surprise me.
#16
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I had a 3" in/outlet dynomax rv bullet muffler on the sy. It was quiet at part throttle and roared at WOT. Lack of b/p causes boost spike/creep and excessive b/p can also cause it too. (had a magnacharger with a 8psi pulley see 12psi with a 2 into 1 muffler.)
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#17
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Lowering backpressure downstream of the turbocharger increases the effective expansion ratio across the turbine, resulting in higher turbine efficiency / more turbine output power for the same massflow and temperature.
This will generate more boost if your wastegate / boost controller is not functioning properly, as the turbine can drive the compressor harder.
First post on here - work with this stuff for a living, thought I'd chime in.
- Matt
This will generate more boost if your wastegate / boost controller is not functioning properly, as the turbine can drive the compressor harder.
First post on here - work with this stuff for a living, thought I'd chime in.
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- Matt
#19
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http://youtube.com/watch?v=N0IztgcOi24...
check out this link... this is my cady.. I run 3 inch exhaust straight thru... 3 inch after into a 5 inch diesel tip... it makes it echo.. sounds absolutely amazing.. no muffler, still have the cats
check out this link... this is my cady.. I run 3 inch exhaust straight thru... 3 inch after into a 5 inch diesel tip... it makes it echo.. sounds absolutely amazing.. no muffler, still have the cats