High elevation proven Mcxpress stage 3

[iceback]

How much weight do you have to run in primary with that kind of HP at elevation or are you offsetting with a much stiffer spring ?
My setup now is Primary: SSI Mag weights loaded to 87 g , S-O-S spring . Secondary: Dalton White spring , twist at 9-1 , 39 Deg Dalton Helix , Pulls 8700-8800 on a decent climb , Soft to deep snow , 8900-9100 same pitch climb on packed snow .

 

[Jakeshupe79]

How much weight do you have to run in primary with that kind of HP at elevation or are you offsetting with a much stiffer spring ?
My setup now is Primary: SSI Mag weights loaded to 87 g , S-O-S spring . Secondary: Dalton White spring , twist at 9-1 , 39 Deg Dalton Helix , Pulls 8700-8800 on a decent climb , Soft to deep snow , 8900-9100 same pitch climb on packed snow .

How much weight do you have to run in primary with that kind of HP at elevation or are you offsetting with a much stiffer spring ?
My setup now is Primary: SSI Mag weights loaded to 87 g , S-O-S spring . Secondary: Dalton White spring , twist at 9-1 , 39 Deg Dalton Helix , Pulls 8700-8800 on a decent climb , Soft to deep snow , 8900-9100 same pitch climb on packed snow .

I'm running heavy hitter weights. I can't remember for sure what weight I'm running. I think around 78g. I'm also running thunder products orange spring in both primary and secondary. That being said i also put a belt drive on with a 1.84 gear ratio and a 175 track with 3.5 pitch. On a long pull i will run 8800-8900 at 10k -12k. When I make a long pull around 10k - 7k ft I will bounce off the rev limiter if the front end comes up at all. O and stock helix. I tried a strait 42 degree, felt a lot snapper, but felt like it lost a little up top.

 

[iceback]

I'm running heavy hitter weights. I can't remember for sure what weight I'm running. I think around 78g. I'm also running thunder products orange spring in both primary and secondary. That being said i also put a belt drive on with a 1.84 gear ratio and a 175 track with 3.5 pitch. On a long pull i will run 8800-8900 at 10k -12k. When I make a long pull around 10k - 7k ft I will bounce off the rev limiter if the front end comes up at all. O and stock helix. I tried a strait 42 degree, felt a lot snapper, but felt like it lost a little up top.

Nice

 

[Tarzan]

I'm running heavy hitter weights. I can't remember for sure what weight I'm running. I think around 78g. I'm also running thunder products orange spring in both primary and secondary. That being said i also put a belt drive on with a 1.84 gear ratio and a 175 track with 3.5 pitch. On a long pull i will run 8800-8900 at 10k -12k. When I make a long pull around 10k - 7k ft I will bounce off the rev limiter if the front end comes up at all. O and stock helix. I tried a strait 42 degree, felt a lot snapper, but felt like it lost a little up top.

What belt drive do you use? Whos making it?

 

[niemikorpi]

I have specialtymotorsports c3 beltdrive

http://www.bd-xtreme.com/index.php?id_product=714&controller=product

Should fit sidewinder with short chaincase.

 

[Jakeshupe79]

What belt drive do you use? Whos making it?

Tarzan I'm running the c3 belt drive. I had to trim the baffle and tank also had to take out the bottom screen to make it fit. But I believe I was the first one to put it on the sidewinder 2 years ago. They might have made changes to it.

 

[Tarzan]

Tarzan I'm running the c3 belt drive. I had to trim the baffle and tank also had to take out the bottom screen to make it fit. But I believe I was the first one to put it on the sidewinder 2 years ago. They might have made changes to it.

Nice,wonder if it would hold and not break with 400hp and with studs on my dragrace winder.?

 

[Brett Allen]

The throttle response is actually a little better then stock. And running straight 110 race fuel. Its definitely a handful of fun.

Hey Jake, I just installed the stage 3 on my sled and having some issues with it. Was wondering if you had some input or suggestions on what I could try