Modification to obtain clearance on AFPR to plenum
Thread Starter
Burning Brakes
Joined: Dec 1999
Posts: 1,023
Likes: 1
From: New Carlisle, Ohio
Modification to obtain clearance on AFPR to plenum
We had to modify both the plenum and the AFPR to obtain adequate clearance of the AFPR in installation.
We removed 1/8 depth from the plenum, which was the most we dared go so as not to break through. All material removed was from underneath an internal boss that apparently GM uses for a construction hole in machining.
This still was not enough clearance, so we radiused the sharp corner on the AFPR can to a 1/8 radius. Here is the installation as we tried a test fit.
Have others had to do this? This is a 1987 Corvette L98.
We removed 1/8 depth from the plenum, which was the most we dared go so as not to break through. All material removed was from underneath an internal boss that apparently GM uses for a construction hole in machining.
This still was not enough clearance, so we radiused the sharp corner on the AFPR can to a 1/8 radius. Here is the installation as we tried a test fit.
Have others had to do this? This is a 1987 Corvette L98.
Drifting
Joined: Oct 2003
Posts: 1,594
Likes: 0
From: CALGARY ab
Re: Modification to obtain clearance on AFPR to plenum (gene284)
i could build one that fits....what is the total height of the AFPR? outside base to top? diameter of base? depth base to inside top? inside/outside diameter?
Race Director
Joined: Sep 2003
Posts: 16,838
Likes: 341
From: Database Error Indiana
Re: Modification to obtain clearance on AFPR to plenum (gene284)
Do you have aftermarket runners that lower the plenum? That looks very tight. I have a Jet afpr on my 87. POS but no clearance trouble. :chevy
