Guys, I have question for you.
Last Spring when I bought my 09 M8, I asked the dealer to install a SLP pipe kit and the recommended 42/36 helix. The setup worked very well.
Fast forward to now. Thursday I ordered a 44/36 helix from Free Agent to go with the SLP Performance Edition kit. Shortly thereafter Jeff from BDX called me and asked if I would like 44/36 P (Progressive) or a 44/36 R (Radiused) helix?
Well, I wasn't 100% sure so called SLP and spoke to Jim at SLP. He said I want the 44/36 R (radiused) helix. So, I asked Free Agent to call BDX and let them know.
Today I went out to my shop and noticed the helix that is on my sled currently (that worked so well) is a 42/36 P (Progressive).
I did some developmental field clutching work for Dalton Industries a few years ago when the RX-1M came out (Tom Hartman made a lot of money off my research). I had many boxes of spring, weights and helixes in many angles, both progressive and radiused. I found I much prefered the progressive helixes to the "stepped" radiused helixes.
However, I can certainly understand that while climbing mountains it is probably adventageous to have one (36 degree) angle that runs the vast majority of the duration of the helix. That way, you are always on the same angle of the helix when the sled is trying to backshift and that would help maintain consistency.
Does anyone know the specific details of which type of helix is prefered for a mountain application and why?
Last Spring when I bought my 09 M8, I asked the dealer to install a SLP pipe kit and the recommended 42/36 helix. The setup worked very well.
Fast forward to now. Thursday I ordered a 44/36 helix from Free Agent to go with the SLP Performance Edition kit. Shortly thereafter Jeff from BDX called me and asked if I would like 44/36 P (Progressive) or a 44/36 R (Radiused) helix?
Well, I wasn't 100% sure so called SLP and spoke to Jim at SLP. He said I want the 44/36 R (radiused) helix. So, I asked Free Agent to call BDX and let them know.
Today I went out to my shop and noticed the helix that is on my sled currently (that worked so well) is a 42/36 P (Progressive).
I did some developmental field clutching work for Dalton Industries a few years ago when the RX-1M came out (Tom Hartman made a lot of money off my research). I had many boxes of spring, weights and helixes in many angles, both progressive and radiused. I found I much prefered the progressive helixes to the "stepped" radiused helixes.
However, I can certainly understand that while climbing mountains it is probably adventageous to have one (36 degree) angle that runs the vast majority of the duration of the helix. That way, you are always on the same angle of the helix when the sled is trying to backshift and that would help maintain consistency.
Does anyone know the specific details of which type of helix is prefered for a mountain application and why?