Race Header

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

Race Header

Postby So Cal Mark » Sun May 01, 2016 6:20 pm

We're building some race headers for the Spider. Here are a few preliminary pics. These are for race-only cars and feature 1 5/8" primaries, 1 3/4" secondaries and a 3" collector. These pics are prior to coating, obviously
Image
Image
Image
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

PatTroy
Posts: 43
Joined: Thu Jan 14, 2016 1:25 pm
Your car is a: 1972 124 Spider

Re: Race Header

Postby PatTroy » Fri Jun 10, 2016 1:40 pm

These look great!

Will they be available for sale? Was there a target RPM used to determine runner length?

Very interested for my time attack car...

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

Re: Race Header

Postby So Cal Mark » Fri Jun 10, 2016 2:58 pm

they are posted on my website at allisonsautomotive.com
The optimum length has been determined through dyno testing and this is as close to that length as possible while still fitting the chassis
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

BCbrad
Posts: 17
Joined: Mon Jul 23, 2012 7:39 pm
Your car is a: 1978 Spider 1800

Re: Race Header

Postby BCbrad » Tue Aug 09, 2016 4:54 pm

Looks very cool. From your website it states This header is not practical for street use. Could you expand or elaborate on this? I like the look of this more than the "coiled" unit you sell. How do the two perform comparatively?

fiat218
Posts: 5745
Joined: Fri May 16, 2008 5:06 pm
Your car is a: 1969 124 AS spider

Re: Race Header

Postby fiat218 » Tue Aug 09, 2016 5:27 pm

I was wondering the same, what would be the differnce in theses and the snake
Jim
East Grand Forks MN
1970 Fiat Spider BS1 ( FOR SALE
1969 124 AS Spider
2017 Abrath
2018 Alfa Romeo 4c Spider

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

Re: Race Header

Postby So Cal Mark » Wed Aug 10, 2016 12:35 am

the race header prevents the use of heater hoses and most anything mounted on the right fenderwell. It's also larger diameter for much higher rpm use
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


Return to “Performance”

Who is online

Users browsing this forum: No registered users and 17 guests