performer intake manifold question
04-12-2008, 09:17 AM
#1
Racer
Thread Starter
performer intake manifold question
I put a 2101 Performer intake manifold on my '60 because I wanted the correct height of the manifold [for hood clearance] and I wanted to use the provisions for the oil fill tube.
I have Dart heads with the 2.02 valves in it. The intake port size is
1.200 X 2.00 on the heads and I bought gaskets to match that.
When I put the gaskets on the performer manifold to check how it looked , some of the ports had as much as 1/8" overlap.
I went to my local Lowes store and bought two grinding burrs , not Dremel but the ones for working on sheet rock, [had a grinder already] I bought one 1/4" dia. for roughing the hole and a 1/8" for final cut. . Worked well. Now my ports are the same dimensions as the ones on my heads.
My question is--- does anybody have real world facts on why this is a good thing to do. Better for high RPM's . Or better Dyno. figures. ETC.
I did it mostly because there must be turbulence if the ports aren't the same.
I have Dart heads with the 2.02 valves in it. The intake port size is
1.200 X 2.00 on the heads and I bought gaskets to match that.
When I put the gaskets on the performer manifold to check how it looked , some of the ports had as much as 1/8" overlap.
I went to my local Lowes store and bought two grinding burrs , not Dremel but the ones for working on sheet rock, [had a grinder already] I bought one 1/4" dia. for roughing the hole and a 1/8" for final cut. . Worked well. Now my ports are the same dimensions as the ones on my heads.
My question is--- does anybody have real world facts on why this is a good thing to do. Better for high RPM's . Or better Dyno. figures. ETC.
I did it mostly because there must be turbulence if the ports aren't the same.
04-12-2008, 09:22 AM
#2
Safety Car
I put a 2101 Performer intake manifold on my '60 because I wanted the correct height of the manifold [for hood clearance] and I wanted to use the provisions for the oil fill tube.
I have Dart heads with the 2.02 valves in it. The intake port size is
1.200 X 2.00 on the heads and I bought gaskets to match that.
When I put the gaskets on the performer manifold to check how it looked , some of the ports had as much as 1/8" overlap.
I went to my local Lowes store and bought two grinding burrs , not Dremel but the ones for working on sheet rock, [had a grinder already] I bought one 1/4" dia. for roughing the hole and a 1/8" for final cut. . Worked well. Now my ports are the same dimensions as the ones on my heads.
My question is--- does anybody have real world facts on why this is a good thing to do. Better for high RPM's . Or better Dyno. figures. ETC.
I did it mostly because there must be turbulence if the ports aren't the same.
I have Dart heads with the 2.02 valves in it. The intake port size is
1.200 X 2.00 on the heads and I bought gaskets to match that.
When I put the gaskets on the performer manifold to check how it looked , some of the ports had as much as 1/8" overlap.
I went to my local Lowes store and bought two grinding burrs , not Dremel but the ones for working on sheet rock, [had a grinder already] I bought one 1/4" dia. for roughing the hole and a 1/8" for final cut. . Worked well. Now my ports are the same dimensions as the ones on my heads.
My question is--- does anybody have real world facts on why this is a good thing to do. Better for high RPM's . Or better Dyno. figures. ETC.
I did it mostly because there must be turbulence if the ports aren't the same.
joe
