MPI Sea level s/c going to the mountains

[Sask Attak]

I have an mpi 180 supercharged nytro xtx and I'm going to Cooke City in March. My sled has a 1.75 backcountry track and the 8hg weights from mpi

What clutching should I do for altitudes of 8000 to 10000 feet?

 

[Sask Attak]

I really need to stop posting and just call Matt@MPI. He answered all my questions.

He recommended 28t bottom and 26t top pulleys for my supercharger. This should compensate for clutching also.

I went ahead and purchased the pulleys from Matt and anticipate their arrival. Thanks Matt!!

 

[nos]

How much does a pully cost?

 

[Sask Attak]

He quoted me $100. The taper locks are $13.

 

[nos]

Any idea how much boost will that give you in the lower elevations?

 

[Sask Attak]

No idea. Matt said should be 7-8 lbs at 10000 feet