how to get 600 more rpm on turbo nytro

[yammi4ever]

Ok here are the details.

Nytro xtx turbo 10 to 14#'s boost depending on where i am, stretched to 162 X 2.5 and geared 20/40 (i believe, could be 19) running shockwave in the secondary with the AC green spring.

Primary has 8BU-17605 weights with 90261-06033 rivits and 8FG-17624 rollers

At 1,000' it is fine, but when going to 8000 to 11000 feet (the snowies) I cannot turn the boost up enough to maintain RPM's even with the shockwave turned all the way in.

What rivits, or combination do I need to use to gain about 600 rpms?

Thanks to the clutch gurus in advance, as I am not a clutching expert by any means.


kirk

 

[tapex_07]

Your looking at taking about 2 grams per arm out. Depending on if it revs up then drops some in rpm, will tell you if it needs to be taken from the heel or tip.. What setting is your AC spring at in the secondary? Hope this helps.

 

[yammi4ever]

Thanks for the reply, do you know which rivet from Yamaha would take the 2 grams away, they only list the length of either steel or aluminum, not the weight.

Where would I be best to try first, the tip??