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how are the mpi trail turbo doing against a 800 polaris?

yamamarc

TY 4 Stroke God
Joined
Sep 29, 2013
Messages
3,051
Location
Massey Ontario
Country
Canada
Snowmobile
2019 zr9000 Ltd
Buddy just bought a 16 polaris 800 and is busting my balls that he will blow me away on the lake!
He want to bet me for a case of beer no matter who gets the upper hand we will be drinking the beer together!!lol
I smoked a 800 cat last season
just curious how the mpi turbo viper will hold up against the poo
 

I should know in a couple weeks as my buddy with his 16 800 assault is out of town on work, but i did spank my other buds 17 850 mxz ski-doosh today in a 0-110 mph race on the field behind his house, got him by about 2.5 sled lenghts
 
I should know in a couple weeks as my buddy with his 16 800 assault is out of town on work, but i did spank my other buds 17 850 mxz ski-doosh today in a 0-110 mph race on the field behind his house, got him by about 2.5 sled lenghts
that's good to know! Those 850's are suppose to be fast! So the 800 should be a walk in the park!!!lol
I could taste the beer now!!:drink::D
 
I should know in a couple weeks as my buddy with his 16 800 assault is out of town on work, but i did spank my other buds 17 850 mxz ski-doosh today in a 0-110 mph race on the field behind his house, got him by about 2.5 sled lenghts
did you put 21/41 gearing in yours
 
did you put 21/41 gearing in yours
I have them, but not installed yet, last week on a gravel road with 3" of snow i hit 118mph with the stock 24/50, i run thunder products clutching and my primary and secondary are machined by NOSPRO.;)!
 
My buddies 800 poo will be tough to beat, he's running a can, mid pipe and clutch kit from bikeman performance, should be interesting.
 
Modz for this year will be 21/41 gears and afr/boost gauge to regain some decent fuel economy while cruising.
Then if i get used to this new found power, evo flash to get rid off rev limiter, heads studs but no shim, regulated return fuel pump and crank boost up to 7psi for about 230hp.
 
Taken a 800 poo on the lake , no problem !

Race rules: start on the lake 100 foot from shore. Race across lake to shoreline then proceed up through the wooded hillside to the top then back down half way and a immediately uturn and back up to the top then back down the hill to the starting point on the ice. I will give the poo a head start even.

I enjoy Coors or Molson.

Lets race!
:beer:
 
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Me - 2015 SR Viper RTX SE w/ MPI turbo and stock 24/50 gearing.
Brother - 2017 Polaris 800 Switchback 137 Pro-S which is all stock

Had a couple half-assed attempts at a race on a rail grade this past weekend. But it didn't really tell much. My Viper isn't really setup for drag racing as I have the coupler blocks pulled out for more weight transfer. Off the line on every race, I had to back out of the throttle. My skis were at least a foot off the ground and I was either headed towards the woods, or into my brother's path. So that doesn't really tell me much. We did have one drag that was somewhat decent. After getting out of the throttle (again!) I got it to settle in and go straight. But after getting out of the throttle, he was a bit over a sled length ahead of me. But now with full throttle in a straight line, I was able to put the power down. We didn't get a real full pull to top speed like we would have done going across a lake. But I was catching him. Although we only ran it up to about 80mph or so. I think I would have run out of gear before I fully caught up to him though.

But here's what I think in my scenario. If I get a good holeshot, I've got it made. The only way he will get me is if we have a long enough run where he can get me on top speed. My sled simply isn't setup to run much over 100mph. But if I blow the holeshot, that Poo is one hard sled to run down.
 
Buddy just bought a 16 polaris 800 and is busting my balls that he will blow me away on the lake!
He want to bet me for a case of beer no matter who gets the upper hand we will be drinking the beer together!!lol
I smoked a 800 cat last season
just curious how the mpi turbo viper will hold up against the poo

My dad just bought a 2018 Assault 800, it pulls real hard from 0-80 but then levels off. I don’t know what gears are in the Assault but I think they’re on the lower side. I think you’ll be very close at the beginning, if you have enough room I think your turbo will creep away from him past that 70-80mph mark, so make sure you line up somewhere that allows your turbo to run flat out for a bit.
 


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