anyone running 1 7/8" primary headers?

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Jan 31, 2010 | 09:19 AM

1996man

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Melting Slicks

Joined: Dec 2001

Posts: 2,437

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From: Gainesville Fl

anyone running 1 7/8" primary headers?

turbo, supercharger or N/A applications? what power are you making?

Jan 31, 2010 | 11:31 AM

surfer92

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Joined: Oct 2009

Posts: 679

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From: vero beach florida

First off, you get the size primaries you need.
Stock to mild build = 1 5/8
Medium to high HP = 1 3/4
Gone nuts = 1 7/8 or bigger

Search function is your friend!!

Jan 31, 2010 | 12:22 PM

2REDGMC

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Joined: Jan 2010

Posts: 37

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From: Kingwood TX

Quote:

Originally Posted by 1996man

turbo, supercharger or N/A applications? what power are you making?

1 7/8 2" step headers on my truck

620 N/A
Supercharged don't know yet

Jan 31, 2010 | 04:09 PM

thetoy

Racer

Joined: Feb 2003

Posts: 440

Likes: 6

From: aumsville oregon

Quote:

Originally Posted by surfer92

First off, you get the size primaries you need.
Stock to mild build = 1 5/8
Medium to high HP = 1 3/4
Gone nuts = 1 7/8 or bigger

Search function is your friend!!

Gone nuts Here I run a 2" primary and have 650 RWHP NA.

Feb 1, 2010 | 12:45 AM

tpi 421 vette

Melting Slicks

Joined: Mar 2002

Posts: 3,108

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From: S.L.C. UT

I have 2" primaries with 3.5" collectors. It picked up a tenth. But I also run a 200 shot on a 450 ci engine.

Feb 1, 2010 | 01:55 AM

REDC4CORVETTE

Safety Car

Joined: Apr 2004

Posts: 4,532

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From: Lahaina Hi

I run 1 7/8 Stahl paid $1500 bucks for .I dynoed 726 hp at the motor and I run a 300 shot of nitrous.They screwed up on #3 header tube and I have to remove the header to replace the plug.I would go as big a header as you can .Real racers know why.

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