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Discussion Starter · #1 ·
Hi ! How may here run a hurricane 205 tuned with 1" 1/4 standard track ?! I need to geared up but I don’t know which gear to buy , it’s for trail riding and max top speed to .. I think 125 mph on hard pack is realisable on over drive !! Thanks guy !!
 

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I went 25/41 with a 1 1/4 track on my 16 psi Whalen tune. Was perfect. And I don't think you'll see 125 gps. I'm thinking perfect condition on hard pack 117 gps. Best I seen was 114 gps. But it would do 110 almost anytime on the groomed trails.
 

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I went 25/41 with a 1 1/4 track on my 16 psi Whalen tune. Was perfect. And I don't think you'll see 125 gps. I'm thinking perfect condition on hard pack 117 gps. Best I seen was 114 gps. But it would do 110 almost anytime on the groomed trails.
Hurricane "205" tune is also 16 psi.
 
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Discussion Starter · #4 ·
I went 25/41 with a 1 1/4 track on my 16 psi Whalen tune. Was perfect. And I don't think you'll see 125 gps. I'm thinking perfect condition on hard pack 117 gps. Best I seen was 114 gps. But it would do 110 almost anytime on the groomed trails.
Sorry but at 205 hp if you can’t see 125 mph on gps with the right gear and clutching on a hard trails we have a problem no ? Stock all the way on best conditions you can see 110-112 easy
 

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A stock 900t might do a little over 100 mph gps. Don't go by the speedo. I was so happy with 114 gps. Fyi I did hit 126 mph on the speedo once if that helps lol. Around here 850's on a very good day are about 103 mph max gps. I have ridden probably more the 50, all the same. 840 poo and ski doo doesn't matter. I'm not sure where all these magical 110 mph plus 850's are but nothing stock would even be close to my tuned 900t. 125 mph gps on a 16 psi tune isn't happening. Not on a trail sled Anyway.
 

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A stock 900t might do a little over 100 mph gps. Don't go by the speedo. I was so happy with 114 gps. Fyi I did hit 126 mph on the speedo once if that helps lol. Around here 850's on a very good day are about 103 mph max gps. I have ridden probably more the 50, all the same. 840 poo and ski doo doesn't matter. I'm not sure where all these magical 110 mph plus 850's are but nothing stock would even be close to my tuned 900t. 125 mph gps on a 16 psi tune isn't happening. Not on a trail sled Anyway.
I've had a 18, 20, and 21 850 129"X's stock and if it only did 103mph gps it would be going back to the dealer. My 18 had a best of 115gps, my 20 and 21 was 114gps. This was done on very hard pack logging roads. My 18 was a runner, it actually did 115gps on ice with an inch of fresh snow on it with just 2 miles on the sled for break in. On hard setup trails on colder days it veried from 108 to 112gps. On regular groomed trail at 15-20F 105 to 107gps was average. The 129" does have a pretty good advantage over the 137" we've noticed.
 

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Sorry but at 205 hp if you can’t see 125 mph on gps with the right gear and clutching on a hard trails we have a problem no ? Stock all the way on best conditions you can see 110-112 easy
It's 16 psi. Whalen at 16 psi claims 180hp. Hurricane at 16 psi claims 205. The new ski Doo 900tr claims 180 HP at 17.4 psi with an upgraded wheel and injectors among other things. I think ski Doo is sandbagging a little, but I think 16 psi making 205 is optimistic. These sleds don't mph well if that's what you are going for.
 

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Sorry but at 205 hp if you can’t see 125 mph on gps with the right gear and clutching on a hard trails we have a problem no ? Stock all the way on best conditions you can see 110-112 easy
Your rear suspension and track is going to keep you from reaching your 125 MPH. Sled needs to be lower and and the track angle needs to be at a much lower angle also! Just take a look at drag sleds and oval racers.

Bob
 

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I've had a 18, 20, and 21 850 129"X's stock and if it only did 103mph gps it would be going back to the dealer. My 18 had a best of 115gps, my 20 and 21 was 114gps. This was done on very hard pack logging roads. My 18 was a runner, it actually did 115gps on ice with an inch of fresh snow on it with just 2 miles on the sled for break in. On hard setup trails on colder days it veried from 108 to 112gps. On regular groomed trail at 15-20F 105 to 107gps was average. The 129" does have a pretty good advantage over the 137" we've noticed.
I'm not sure what to say. We are at 700 ft above sea level if that matters. I have owned and ridden many different 840 and 850 over the years so its not just one sled. I also raced (just for fun) many "claimed" 110 + mph 840's and 850's with my tuned 900t and it wasn't even close, haven' t found one yet. Not arguing, just results from my area. The fastest 850 I had was my 850 g4 MXZXRS and my g4 BCXRS. 103 mph on a good day. I walk away on my 900t as I still ride with the guys I sell my sleds to. In my area 110 mph gps out of a g4 850 just isn't happening. Slap a gps on some of these 110 + mph 850's and guys shut up pretty quick. Again, not doubting your results but that's my experience around here. I have never seen it happen so it's hard for me to believe. Maybe at sea level? Not sure.
 

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Your rear suspension and track is going to keep you from reaching your 125 MPH. Sled needs to be lower and and the track angle needs to be at a much lower angle also! Just take a look at drag sleds and oval racers.

Bob
Yup. Dropped and rolled chain case and nix the suspension travel. That's not what they are designed for. They are trail machines and were designed as such. If you want a machine built for MPH, you have to build it. And the gen 4 900t isn't the easy way to do it.
 
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I'm not sure what to say. We are at 700 ft above sea level if that matters. I have owned and ridden many different 840 and 850 over the years so its not just one sled. I also raced (just for fun) many "claimed" 110 + mph 840's and 850's with my tuned 900t and it wasn't even close, haven' t found one yet. Not arguing, just results from my area. The fastest 850 I had was my 850 g4 MXZXRS and my g4 BCXRS. 103 mph on a good day. I walk away on my 900t as I still ride with the guys I sell my sleds to. In my area 110 mph gps out of a g4 850 just isn't happening. Slap a gps on some of these 110 + mph 850's and guys shut up pretty quick. Again, not doubting your results but that's my experience around here. I have never seen it happen so it's hard for me to believe. Maybe at sea level? Not sure.
Were at 770' here in central Wisconsin as well. Snow conditions make a huge difference and our snow packs very good with high moisture content. Several witnesses as I kept my GPS on my sled. Could probably dig up some pics off my FB. The biggest factor I have found is a tight track with all my suspension settings at the softest and I ran a Ultimax belt with scuffed up clutches after every ride. Have seen 125 a few times and 127 once on the speedo on my 850s. I even ran a lynx Rave on the grade trail which is a 137" with 1 1/2" track to 118mph on the speedo, didn't have my gps attached as it was a demo. Posted that pic on the lynx FB page. My experience is that's probably 106 to 108gps by ski doo speedo's but again didn't gps it. I'm only 180lbs also. I just hope my Mach hits close to 120gps as my sidewinder was there stock, but the Mach will be a better sled anyways.
 

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Discussion Starter · #13 ·
A stock 900t might do a little over 100 mph gps. Don't go by the speedo. I was so happy with 114 gps. Fyi I did hit 126 mph on the speedo once if that helps lol. Around here 850's on a very good day are about 103 mph max gps. I have ridden probably more the 50, all the same. 840 poo and ski doo doesn't matter. I'm not sure where all these magical 110 mph plus 850's are but nothing stock would even be close to my tuned 900t. 125 mph gps on a 16 psi tune isn't happening. Not on a trail sled Anyway.
A stock 1200 can run 100-105mph with good clutching with only 135 hp and 85-88 lbs/trq .. if I consider the 900t have 150hp and 114 lbs/trq .. 110 is realisable easy !! Yes the cluster was a dreamometer but with 189 on my last season , I don’t think we have 29km false to just have 160 km ( gps )
 

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I saw 99MPH many times on GPS on my '17 1200 Enduro, Cudney clutch kit, stock ice ripper track, it went down to 94MPH when I put on a storm 150 track with 96 1.575" woody's with double backers. It was very consistent on those speeds, smooth too.
 

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A stock 1200 can run 100-105mph with good clutching with only 135 hp and 85-88 lbs/trq .. if I consider the 900t have 150hp and 114 lbs/trq .. 110 is realisable easy !! Yes the cluster was a dreamometer but with 189 on my last season , I don’t think we have 29km false to just have 160 km ( gps )
1200 is in a better chassis for top end, sits lower, less rider up high in the wind. Not comparable, imo.
 
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