Indy RB Tunnel Ram plenum spacer

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Indy RB Tunnel Ram plenum spacer #1661846 08/21/14 10:25 AM 08/21/14 10:25 AM
Joined: Jan 2003 Posts: 6,139 Melbourne , Australia LA360 OP master
LA360 OP master Joined: Jan 2003 Posts: 6,139 Melbourne , Australia	How thick a plenum spacer have you run on one of the INDY RB 4150 style tunnel rams? The plenum volume seems awfully small! Just curious as to what others have tried with what results. Alan Jones

Re: Indy RB Tunnel Ram plenum spacer [Re: LA360] #1661847 08/21/14 04:36 PM 08/21/14 04:36 PM
Joined: Mar 2006 Posts: 9,910 Eighty Four, PA B G Racing master
B G Racing master Joined: Mar 2006 Posts: 9,910 Eighty Four, PA	3/8 to 1/2 inch,1/2" is the popular one,larger home made if you have the clearence at the hood scoop,it should be a minimum of 3/8 between the vent tubes and scoop. [IMG]http://i430.photobucket.com/albums/qq21/ajcasini/max_zpsdppwd9km.jpg[/IMG]

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