[6pack] Triple SU Size

Sally or Dick Taylor tr6taylor at webtv.net
Tue Dec 16 18:32:08 MST 2008


Greg---I think your premise is correct on all accounts. Would the carb flanges bolt up to the manifold?

Dick


-----Original Message-----
From: Greg Dito
Sent: Tuesday, December 16, 2008 5:08 PM
To: 6pack at autox.team.net
Subject: [6pack] Triple SU Size

Listers,

Does anyone have some knowledge as to whether it makes sense to use 1-1/2" 
SUs (HIF38 or HIF4) on a Goodparts triple manifold versus 1-3/4"?  The 
1-1/2" x 3 has more than enough CFM capacity for the engine but because the 
throat is smaller I would expect there to be greater negative pressure 
across the carb jet resulting in a more thorough mix of air and fuel at 
greater velocity going into the combustion chamber.  Is my premise correct 
or not?

Thanks in advance.

Greg Dito
CD6250L
6pack at autox.team.net
http://autox.team.net/mailman/listinfo/6pack

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