Track speed

[mynewuseddoo]

Just wondering what people are seeing for track speed on their TM8's and at what boost pressures. Are the weights tipped or clipped? These are mountain machines so if someone can get 100+ miles an hour on a flat lake that is irrelevant. Let's keep this to steep and deep numbers.

I'm running 9 psi, about 87 grams with the tips empty(CPC adjustables). Seeing about 60 mph on the top end. CPC gold primary spring and cpc green torsional secondary set at 6. Throttle response, track acceleration and back shift are excellent, not far off of stock. Awesome, awesome boondockin sled!

 

[WyoBoy1000]

Elevation is a big factor, what about snow quality.

 

[ACMtnCat]

18" to 24" deep powder on a OK base at 9000 feet, I can hold 61mph at 7900 rpms. Running 7#s on 91 pump gas.

Purple primary with 80g?? weights, Cutler secondary red/white in the middle with a straight 44* helix - BDX 56/64 gearing spinning my 153" PC.

I see 67 at first when leaving a track or packed snow then it settles down to 61 in the pow (still trying to figure it out). Blip the throttle mid way up and hammer down, whoooossshhhh! 61 again! SKIS IN THE AIR! DAMN IT'S FUN!