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header size for ba gt 

 

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 Post subject: header size for ba gt
Posted: Wed May 04, 2011 7:31 pm 
Fordmods Newbie
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Age: 32

Posts: 1

Joined: 27th Apr 2011

Ride: fg xr6 turbo

Location: sydney
NSW, Australia

im looking at finishing of the system on my ba gt but i m not sure what size headers to go for im looking at eather 1 3/4 or 1 7/8 or i have seen that huracnie do a steped header 1 3/4 upto 1 7/8 would these the better way to go? thanks
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 Post subject: Re: header size for ba gt
Posted: Wed May 04, 2011 10:24 pm 
EFI Guru
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Age: 52

Posts: 4289

Joined: 5th Nov 2004

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Ride: 351 Vogue,XH 5.0,'17 5.0 Stang

Location: Perth
WA, Australia

I wouldn't use any larger than 1 3/4" unless the engine has some serious work done port wise and in rpm capability.
The stepped header is also questionable in a street engine but I'd like to hear from someone who has used them and what the engine combo is?
I've just fitted diflippo 1 3/4" and it certainly has maintained the low end and improved the midrange punch.
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 Post subject: Re: header size for ba gt
Posted: Thu May 05, 2011 7:57 pm 
Getting Side Ways
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Age: 28

Posts: 540

Joined: 9th Aug 2007

Ride: FG Ute, ED XR8 Sprint, GPZ900R

Location: Leopold, Geelong
VIC, Australia

+1 for diflippo

 

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The Past: EF Fairmont, EL Fairmont 5.0, HR Special, NF Fairlane 5.0, GSX 250-F, BA II XR8, VS3 Ute, VS2 L67 Calais

The Present: FG Egas Ute, ED XR8 Sprint, GPZ 900R

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