If you were building a sled from the ground up that was going to make 200-250 HP, which drive system would you use? How light can you get a complete drive system? Is sub 25 lbs for everything reasonable? Is sub 20 lbs possible with lightweight shafts and 7075/Ti. bolts, and a drilled Ti. brake rotor?
I was thinking a Diamond Lite drive with high torque gears, billet cover, lightweight trackshaft & brake rotor, and the caliper from a '12+ M8 if it will fit the Diamond Drive trackshaft (stock M series caliper is heavy). Biggest downside to this is being stuck with a crappy secondary clutch. I had a ZR900 DD in a Rev and liked it aside from the clutch.
What's a complete CMX belt drive weigh with the shafts?
What's an RMI drive weigh? Are these still available?
How about the factory Polaris belt drive? Would the belts live if it was in a stiff tube chassis? Are they failing in the Pro's because of chassis flex?
Or do you forget all the fancy crap and just stick with a bulletproof chain case from an Apex?
Either a gear drive, or belt drive or chaincase with 8" or more C to C would be ideal to run a 3" track and 8-tooth or 9-tooth 3" pitch drivers. 9-tooth would be ideal. I don't want the jackshaft in the tunnel, defeats the whole purpose of having track clearance (IMO).
To sum it up: I built a very light turbo nytro last year, and I'm getting ready to build another from the ground up (mainly just using a Nytro motor, the rest will be fabricated). I want a finished weight under 400 lbs. I have most of the details worked out but I can't for the life of me decide what to do for the drive train. I've been going back and forth for a few months now so I decided to post up.
I was thinking a Diamond Lite drive with high torque gears, billet cover, lightweight trackshaft & brake rotor, and the caliper from a '12+ M8 if it will fit the Diamond Drive trackshaft (stock M series caliper is heavy). Biggest downside to this is being stuck with a crappy secondary clutch. I had a ZR900 DD in a Rev and liked it aside from the clutch.
What's a complete CMX belt drive weigh with the shafts?
What's an RMI drive weigh? Are these still available?
How about the factory Polaris belt drive? Would the belts live if it was in a stiff tube chassis? Are they failing in the Pro's because of chassis flex?
Or do you forget all the fancy crap and just stick with a bulletproof chain case from an Apex?
Either a gear drive, or belt drive or chaincase with 8" or more C to C would be ideal to run a 3" track and 8-tooth or 9-tooth 3" pitch drivers. 9-tooth would be ideal. I don't want the jackshaft in the tunnel, defeats the whole purpose of having track clearance (IMO).
To sum it up: I built a very light turbo nytro last year, and I'm getting ready to build another from the ground up (mainly just using a Nytro motor, the rest will be fabricated). I want a finished weight under 400 lbs. I have most of the details worked out but I can't for the life of me decide what to do for the drive train. I've been going back and forth for a few months now so I decided to post up.
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