Exhaust for Boost application?

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Dec 18, 2008 | 10:03 AM

#21

NORCAL TBSS

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From: FRISCO CALI

i have a pimp set up

Stainless works 1 3/4 headers
True 3 inch duals to the magnaflow dual 3 inch in/out muffler
Muffler has internal x pipe also and flows great
Then turned down right after the muffler

Ask anyone here that has heard the truck sounds bad ***.

Dec 28, 2008 | 09:34 AM

#22

BigCountryx

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From: Baton Rouge

Another thought, which would be better for mildly boosted 6.0?

1 5/8" primary, 3" collector

or

1 3/4" primary, 2.5" collector

Dec 29, 2008 | 01:06 PM

#23

Midnightrider

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From: Celina, Tx

im running no cats pacesetter lt and true dual 3" mandrel bent piping. my mufflers are the racing series magnaflows round 3" in/out little to no back pressure loud as @#$* btw

Dec 31, 2008 | 01:59 PM

#24

1BadAction

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From: Briar, TX!

Quote:

Originally Posted by dhpro

One of the car mags did an article on this topic last yr (Super Chevy?), and focussed on both collector size and length. Tuned exhaust can make huge diff in performance and Nascar teams have done huge amounts of work here altering setups to match tracks. I have true 3" duals, gutted cats, and dynotech LT's.
PROB WORTH STARTING A STICKY ON EXHAUST SETUPS V MOTOR/POWER ADDER. Be a great way to compare real world results and save lots of guess work!

A huge difference to a Nascar team might be 10hp, that is north of 9000rpm and 800hp. this stuff is being massively over thought, IMO. Most of us would never see a power difference between 1-3/4 and 1-7/8" primarys or different merge styles with a collector that has a 3" outlet.

Dec 31, 2008 | 04:43 PM

#25

BigCountryx

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From: Baton Rouge

http://www.sandersonheaders.com/tech_get_technical.php

Been reading this write up and it has helped my decision alot. I think for me, planing on staying under 6000 rpms, the larger primaries would be wasted. I would probably even benefit from the smaller pimaries.