Any rule on how long a pin in can be?
Thread Starter
Joined: Jan 2004
Posts: 1,761
Likes: 4
From: The "D"
Car: A Portly 85 Z28
Engine: 4.530 X 4.250 BBC
Transmission: under rated for this application
Axle/Gears: also under rated
Any rule on how long a pin in can be?
I`m waiting on a rule book right now, but maybe someone knows, I want to do a pin in bar for easier access to the cockpit. Here what I was thinking....If I can make the pin in just about the total length of the strut tube I could run a nice straight tube for the track and get a seconed tube made that drops down real low and rides the floor like an autocross bar. That would make ingress and outgress alot more friendly for the street, but still have the structre to support the plywood like frame. I have a chassis builder thats possibly going to do my bar and here is the only kind of pin in he has done....
Senior Member
Joined: Jul 2003
Posts: 509
Likes: 0
From: Detroit, MI, USA
Car: '82 Trans Am
Engine: Blown 540 BBC
Transmission: TH475
Axle/Gears: Dana 60, 4.10 w/spool
Shouldn't have a problem doing what you've described. I do know that the clevis type ends shown in the picture above won't pass NHRA tech though. Specifics regarding this are in the rulebook.
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