Evaluation of my header by Jeff Scheferman

Make it go fast! Kick it up a notch. Post tips in here.
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So Cal Mark
Posts: 13839
Joined: Wed Jan 25, 2006 3:45 pm
Your car is a: Fiat
Location: upland, ca.

Evaluation of my header by Jeff Scheferman

Postby So Cal Mark » Thu Nov 09, 2006 12:28 am

here's the link to the FiatCenter thread;
http://fiatcenter.com/bbv2/bbBoard.cgi? ... gtid=11864
Mark Allison
allisonsautomotive.com Fiat and Alfa Romeo parts and service. Performance parts our specialty!
Headers, ignitions, wheels, cams, flywheels
starsmark@hotmail.com 909-981-3566

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mdrburchette
Posts: 5754
Joined: Wed Jan 25, 2006 5:49 am
Your car is a: 1972 Fiat 124 Sport
Location: Winston-Salem, NC

Postby mdrburchette » Fri Nov 10, 2006 9:21 pm

That's a great write up on your performance header, Mark. Did I mention they are also extremely sexy? :wink:

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So Cal Mark
Posts: 13839
Joined: Wed Jan 25, 2006 3:45 pm
Your car is a: Fiat
Location: upland, ca.

Postby So Cal Mark » Sat Nov 11, 2006 12:42 am

no, you hadn't mentioned it, but others have 8)
Mark Allison
allisonsautomotive.com Fiat and Alfa Romeo parts and service. Performance parts our specialty!
Headers, ignitions, wheels, cams, flywheels
starsmark@hotmail.com 909-981-3566

Spyderbuddy

Postby Spyderbuddy » Sat Nov 11, 2006 6:24 pm

i'm sorry mark, i've forgotten what your sugestion was with your header and fuel injection. saw that with carbs it leaned the engine out but with the o2 sensor in the header will it lean out the fuel injection bad

Spyderbuddy

Postby Spyderbuddy » Sat Nov 11, 2006 6:26 pm

oh by the way love your headers and exhaust system just waiting on more money to get the system other things come first

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So Cal Mark
Posts: 13839
Joined: Wed Jan 25, 2006 3:45 pm
Your car is a: Fiat
Location: upland, ca.

Postby So Cal Mark » Sat Nov 11, 2006 7:34 pm

On a FI system you would need to check fuel mixture through the rpm range. The O2 sensor doesn't affect the Fiat system at speed. The injector pulse rate is set by rpm and air volume.
I haven't installed a system on an FI car myself, so I haven't had the chance to test fuel mixture results. The AFM may have to be tweaked if the air bypass on the AFM isn't enough adjustment.
Mark Allison
allisonsautomotive.com Fiat and Alfa Romeo parts and service. Performance parts our specialty!
Headers, ignitions, wheels, cams, flywheels
starsmark@hotmail.com 909-981-3566


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