I,ve made a manifold for two 150 strombergs i used a stock manifold from a 78
1500. cut of the water jacket bored two holes centered on the paired exit ports
, opened up the manifold ports as much as possible welded in two inlet tubes
with flanges painted it gloss black i cleaned the carbs with a glass bead
blaster they look as though they have been anodized they are that shiny. I
was wondering if i had been wasting my time , your comments are most encourging
Barry Schwartz wrote:
> While it sounds good in theory, and granted bigger runners would help, I
> think you'll find the main restriction at this point would be the wimpy 150
> Stromberg. Now a large runner manifold modified to take a single 175
> Stromberg would probably be *almost* as good as a twin 1 1/4 SU setup. I
> believe that the intake manifold with the larger runners is off a late MK3
> and MK4 Spitfires and possibly very early 1500's but I'm not absolutely
> sure. One of the best manifolds and setups I ever had was a custom one off
> manifold sporting TWO 150 Strombergs. Wish I still had it. Marvelous
> welded up aluminum piece. Unfortunately, it succumbed to vibration, plus
> not being supported properly from underneath, cracked beyond repair and I
> no longer have it -
> ******************************************
> >This discovery of there being two different sized manifolds for the single
> Stromberg is something I think we should try to figure out. There's a lot
> of performance increase potential in this,
>
> Barry Schwartz (San Diego) bschwart@pacbell.net
>
> 72 PI, V6 Spitfire (daily driver)
> 70 GT6+ (when I don't drive the Spit)
> 70 Spitfire (long term project)
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