land-speed
[Top] [All Lists]

Simple Induction Question

To: autox list <land-speed@autox.team.net>
Subject: Simple Induction Question
From: Dick J <lsr_man@yahoo.com>
Date: Thu, 14 Feb 2002 20:36:39 -0800 (PST)
Some four barrel manifolds (and spacers) have four holes to match the venturies 
on the carburetor.  Others have one large square hole which includes all four 
venturies of the carburetor.  What is the difference in these two arrangments?  
I have an older intake manifold that is drilled for the early small bolt 
pattern four barrels, but I want to adapt the larger bore, bigger bolt pattern 
carburetor.  Should I machine out the four small venturies to the size of the 
bigger carburetor's butterflies, or should I just machine out the entire 
opening in the intake to match the size of the later carburetor gaskets and 
spacers which have one large square inlet?   My theory is that the four smaller 
venturies give better bottom end response, and the larger square hole gives 
better top end performance.  Am I right or wrong?

 

Dick J

In East Texas
Got something to say? Say it better with Yahoo! Video Mail

///  unsubscribe/change address requests to majordomo@autox.team.net  or try
///  http://www.team.net/mailman/listinfo
///  Archives at http://www.team.net/archive/land-speed


<Prev in Thread] Current Thread [Next in Thread>
  • Simple Induction Question, Dick J <=