I recently flowed an new stock1.0 inch manifold, 28" of water, manifold
only, #3 port only, 85cfm.
I also flowed a 1.25 under the same conditions, 105cfm.
If you can do onything to them, the most important thing seems tbe removing
the bumps inside and radiusing both bends into a D shape.
> From: fpspitfire@insightbb.com
> Reply-To: fpspitfire@insightbb.com
> Date: Tue, 30 Nov 2004 00:42:07 +0000
> To: fot@Autox.Team.Net
> Subject: large runner 1500 (single ZS) manifold needed
>
> All,
>
> During the off season I'm converting the car from F-Production to the new
> limited prep formula in H-Production. Part of this conversion is changing
> from the 1296 to the 1500...to go along with that I am required to use the
> original single carb manifold. It's my understanding that there were two
> runner sizes, a 1" runner and a 1.25 (or 1.125"). I have a 1" manifold at the
> engine builders...I'd like to get one of the larger diameter to see what the
> difference will be. Anybody have one gathering dust they'd like to part with
> for cheap?
>
> aaron
>
>
>
> --
> All the best
> Aaron Johnson
> #38 FP Spitfire Mk4 Southern Illinois Region SCCA
> http://www.geocities.com/spitracer9
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