I'm currently useing torque cones in my Yaffe Phantom pipes, has anyone had experience with modifying the cones to be more restrictive to create more back pressure?
Al
On my Vintagelight I was running V&H long shots. Got tired of replacing the bolts and the bracket cracking so I took off the back half and added turnouts. I had the decel pop and lost a lot off bottom end also.
What I have done to get it back is added torque cones and welded a 3/4-1" washer to a bolt head so it looks like a kids sucker. Then I drilled a hole in the back side of the pipes about 2" in from the end. Then you can put the bolt in so the washer is inside the pipe. you can then turn it and lock it down with a nut to adjust the back pressure. Check out this link it will explain it better.
Exhaust Systems
One thing I did different was to cut a slot in the end of the bolt that lines up with the washer so I can tell how much the washer is turned in the pipe, and I can turn it with a screwdriver to adjust it since I can't see it beyond my turn outs.