F
Hey guys! I "think" i finally found my low end bog on my sled!
Sorry, it's gonna take a while ...
My specs:
M8 2011, Low Elevation kit, 1.5° key, Boyesen, MDS weight set at 81grams with Cat 75/275 spring, new secondary with 40 helix, new engine mounts, new exhaust gaskets.
After being seen by 3 different dealers and tried a lot of things there an read all forums thought , the guy who change the rollers and put a different spring(90/310) in my primary last season pointed to me something that maybe the problem is the APV cable length in the repair manual.
The 2011 and 2010 manuals says 1.437" but when set to that length, my sled ride like ****.
So the guy said to put the old spec, 1.377" and tada! The engine run correctly now, but still have a little low end bug with the new 90/310 spring and the engine overrev a lot, like 8300rpm and more.
I've decided to put the old spring(75/195) back and the sled pull's very hard and got back my 7900/8000rpm . Buuuttttttttt!!! The low end bug is a lot worst!!!
My understanding is that the real problem is the primary spring's need to be set higher than 90/310 without overreving. I'm thinking of the Cutler gold/white(135/305) and maybe 78gram or less?
Am i on the right track?
Sorry, it's gonna take a while ...
My specs:
M8 2011, Low Elevation kit, 1.5° key, Boyesen, MDS weight set at 81grams with Cat 75/275 spring, new secondary with 40 helix, new engine mounts, new exhaust gaskets.
After being seen by 3 different dealers and tried a lot of things there an read all forums thought , the guy who change the rollers and put a different spring(90/310) in my primary last season pointed to me something that maybe the problem is the APV cable length in the repair manual.
The 2011 and 2010 manuals says 1.437" but when set to that length, my sled ride like ****.
So the guy said to put the old spec, 1.377" and tada! The engine run correctly now, but still have a little low end bug with the new 90/310 spring and the engine overrev a lot, like 8300rpm and more.
I've decided to put the old spring(75/195) back and the sled pull's very hard and got back my 7900/8000rpm . Buuuttttttttt!!! The low end bug is a lot worst!!!
My understanding is that the real problem is the primary spring's need to be set higher than 90/310 without overreving. I'm thinking of the Cutler gold/white(135/305) and maybe 78gram or less?
Am i on the right track?
Last edited:
