Has anyone tried to move the chain case to the same side as the secondary clutch? Or seen anything like this?
Chain case on secondary side
- Thread starter gilestyle1
- Start date
Only on the really old '50's and '60's, bogie wheel suspension sleds. back when they where sub 50 HP.
V
The old Diamond Drive was on that side.
Yes.
But it is a planetary gear drive.
But it is a planetary gear drive.
Im thinking something similar to dd but chain driven. With the gear hooked directly to the secondary clutch
There have been a few over the years, but I'm not aware of any still in production.
The problem is with high HP you'll need to support the outboard side of the secondary being there isn't a long shaft displacing the load. Then changing belts will be a pain. Then ALL the weight is on that side of the machine.
I wonder how that left hand (diamond drive style) chain case has turned out.
I've never heard of anyone using it.
STM does make nice products.
Maybe drag racers are using it???
I've never heard of anyone using it.
STM does make nice products.
Maybe drag racers are using it???
O
How did the old RMI drive work?
Making JIS screws into junk
Making JIS screws into junk
I have no experience with the RMI, but that was the other one I was trying to think of. I believe it has been out of production for nearly 15-20 years.
It was very similar, except it ran a gear drive similar to a few few aftermarket cam shaft drives (may have indeed been the cam shaft drive setup with a case built for sleds). Big gear in the driveshaft (Cam), small gear on the short Secondary shaft (Crank), and two idler gears that are tied together and float between the large and small gears to keep the rotation the same direction.
My guess is they ceased production due to lack of demand, as you basically needed to build the sled for that drive. Not easily retrofit to an existing chassis.
Gear Drives
FAST built sleds with Polaris motor turned around intake in front pipes on the back clutches on the rights side. If I remember correctly they used a gear drive connecting the secondary clutch through the gear drive to the drive shaft. Was that there's or was it a RMI drive?
FAST built sleds with Polaris motor turned around intake in front pipes on the back clutches on the rights side. If I remember correctly they used a gear drive connecting the secondary clutch through the gear drive to the drive shaft. Was that there's or was it a RMI drive?
Red line
What did the red line sleds use in their drive lines?
What did the red line sleds use in their drive lines?
The Fast gear drive was just two gears to get the correct rotation after turning the engine around.
So this is a skidoo alpine. Im thinking of trying to do something like this but using chain driven and not a gear box.
