Longtubes hitting floor.. knock???

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Nov 30, 2006 | 02:22 AM

#16

ZBLKHELLRZR

Registered User

Joined: Jun 1999

Posts: 972

From: The Haven, Fl

93's may not have a knock sensor but I know when my y-pipe use to hit the floor board timing was pulled at least 7-10 degree's. I put solid mounts on after that and that issue was resolved.

Nov 30, 2006 | 03:34 AM

#17

SS RRR

Registered User

Joined: Oct 1998

Posts: 3,144

From: Jackstandican

Quote:

Originally Posted by lt1 kenobi

Ok I've tried to adjust the y pipe and such every which way and no matter what.. sometimes when I get on it they will vibrate against the floor... My question is... will this cause my knock module to sense knock and pull timing ?? I've heard of it happening but I want to know if it is a regular occurance. thanks in advance

Do you have any idea where the exhaust is hitting? Most popular area is the tranny cross brace on the drivers side. There is a raised section on the brace which interferes w/ a y-pipe. The raised portion can be taken off with a grinder and usually solves the problem.