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Sasksummit
Member
Only been to the mountains once with it but got around 42-44 mph.
Track Speeds "In" Snow
- Thread starter xsummit
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S
SSWIM
Well-known member
My sleds must really "suck". They don't have anywhere near the track speeds of some of the sleds on here. A couple of my old sleds.
TAPEX\162" Track---2871RS -20lbs. of boost-65mph-70mph.
09 TM8\153 Snopro--- 10-11lbs. of boost--50-55MPH.
09XP Doo--163" --- 40ishMPH
These are on a sustained pull, in deep (approx. 2-3') snow. Approx. 45 degree slope. Elevation 11k-12k feet.
Oh well, I guess I need to do some work on my new iron to get these track speeds up. LOL.
Sam
TAPEX\162" Track---2871RS -20lbs. of boost-65mph-70mph.
09 TM8\153 Snopro--- 10-11lbs. of boost--50-55MPH.
09XP Doo--163" --- 40ishMPH
These are on a sustained pull, in deep (approx. 2-3') snow. Approx. 45 degree slope. Elevation 11k-12k feet.
Oh well, I guess I need to do some work on my new iron to get these track speeds up. LOL.
Sam
Zeb,
Did you gear up a little?
108 mph is top speed for my gearing.
In fact I was at Fairview with a bunch of guys at the shoot-out riding the road back on Friday afternoon and I was periodically putting the hammer down for just a second at a time. The track would spin who knows how fast. I held the throttle once for maybe two seconds and blew my seconday to pieces.
The highest track speed I have ever seen under a full load and in deep snow was 86 mph. That was when I first got the sled and it still had the large injectors. I believe I was running 14-16 lbs of boost that day.
I really enjoyed riding your sled with the Impulse Turbo, very smooth, quick power, you have a great set up.
Hope to get a chance to ride with you guys again this winter.
Did you gear up a little?
108 mph is top speed for my gearing.
In fact I was at Fairview with a bunch of guys at the shoot-out riding the road back on Friday afternoon and I was periodically putting the hammer down for just a second at a time. The track would spin who knows how fast. I held the throttle once for maybe two seconds and blew my seconday to pieces.
The highest track speed I have ever seen under a full load and in deep snow was 86 mph. That was when I first got the sled and it still had the large injectors. I believe I was running 14-16 lbs of boost that day.
I really enjoyed riding your sled with the Impulse Turbo, very smooth, quick power, you have a great set up.
Hope to get a chance to ride with you guys again this winter.
L
lightening800
Well-known member
thanks these are true not inflated at all, one further my stock xp 163 would see 40-43ish mph, slp pipe 09 m8 162 45mph good clutching remember this is at 6000ft too.
Stock '07 800 summit
My '07 Xrs is pretty much stock. @ 8,000-10,000ft doing a decent pull in decently deep pow (if I can remember correctly) I think about 42mph is about all I can get out of it repeatedly.
when its a climb that the sled is barely pulling up and traveling forward only about 15mph gps style, my track speed is cranking at about 36mph. its set up well, has a 151 track. new xp's do about the same from my experience.
My '07 Xrs is pretty much stock. @ 8,000-10,000ft doing a decent pull in decently deep pow (if I can remember correctly) I think about 42mph is about all I can get out of it repeatedly.
when its a climb that the sled is barely pulling up and traveling forward only about 15mph gps style, my track speed is cranking at about 36mph. its set up well, has a 151 track. new xp's do about the same from my experience.
I did gear up. I guess people will believe what they want, but I can honestly say these are the speeds that I see in given snow conditions and elevation. Not spikes, but sustained speeds. We for sure need to ride again this year. Let the snow come.
I bet if you dropped a couple thousand ft in elevation you would see somewhere in the 80's with your TApex. Elevation will makes a huge difference just like snow conditions will.
track speed
1990 340 indy sport...........15-20 mph track speed up hill, down hill, side hill, over a small hill maybe!!!! Hope this helps....Im thinking about some mods tho....I will post later after the werx is put on.....oh im thinking about losing some weight too..........dont be jealous anyone.....lol.....this is almost as helpful as most of the other posts......
1990 340 indy sport...........15-20 mph track speed up hill, down hill, side hill, over a small hill maybe!!!! Hope this helps....Im thinking about some mods tho....I will post later after the werx is put on.....oh im thinking about losing some weight too..........dont be jealous anyone.....lol.....this is almost as helpful as most of the other posts......
D
dmkhnr
Well-known member
440# dry M8 162 with pipe/head/porting/powerclaw. mid 40's in a deep climb.
440# dry M8 153 with pipe/powerclaw. Low 40's in a deep climb.
Testing done at 8-10k elev.
My buddy has an M8 162 that is identical to mine except he has a bdx lite drive and geared down 1 series. His is consitantly 2-3 mph faster than mine.
440# dry M8 153 with pipe/powerclaw. Low 40's in a deep climb.
Testing done at 8-10k elev.
My buddy has an M8 162 that is identical to mine except he has a bdx lite drive and geared down 1 series. His is consitantly 2-3 mph faster than mine.
Wow something must be wrong with these numbers
Last season I took the prowler to a whole nother level. Regeared she pulled about 35-40 up a steep powder hill
As for the M8, I dont know how you guys come up with these numbers, I never remember to look down, or maybe I was to scared too...........
oh yeah thats KPH lol
Last season I took the prowler to a whole nother level. Regeared she pulled about 35-40 up a steep powder hill
As for the M8, I dont know how you guys come up with these numbers, I never remember to look down, or maybe I was to scared too...........
oh yeah thats KPH lol
K
kodpkd
Well-known member
wow this is ?? I have over 200 hp and pull an honest 50mph ,not in certain conditions ,all the time,reading this thread Im sure some would claim more ,this is well tuned and running sweet,outclimbing any stocker or lightly modded,I find it hard to believe a turbo pulling over 80-90 ,or a stocker pulling over 40,what exactly is track speed ,I would say its climbing in fresh doing less than your track speed,not how fast your sled goes on hard packed,and a speed that can be maintained through out changing snow conditions throughout the climb ,as well as different day to day conditions ,not what speed your track hits when you catch air on the throttle.a minimum speed that can be maitained throughout any conditions.and unless you have more hp than me you are not pulling more track speed.and I hit 50 in a split second from a standstill...just my thoughts.....or I could just claim 75 and fit right in..see ya'all on the hill.....
I agree with most of what you said.. We are talking ,,,, just track speed. I have no dought that a turbo can SPIN his track 90 + mph.. "in the fluff" But I was getting,,, hooked up,, hard spring snow,, increasing speed, up a good slope,,, 58 MPH.. 08 XP 162... But it is a Felker setup.. True,, no BS. Now i tried it yesterday,,, deeper snow... not that fast..
MCX Nytro running 15lbs boost with a 162x15x2.5 track I run about 75mph track speed on a good pull. Every time I check it is around that.
T-Apex 17lbs on straight AV - 70-75mph up Sugar Bowl in Revy....2ft of pow
the track speeds will vary greatly .
different tracks and how much snow the tunnel can process on the return stroke which fills the top of the tunnel in deep snow.
will greatly effect track speeds .
throw in the variable of how much the density changes from day to day and any given rider will see a range of track speeds thru out a season .
for the non turbo systems throw in air density changes and the wider range of track speeds seen .
figureing into it the hp versus weight factor and you have even more variables .
looking at track speeds over a 10 year period nd you see non turboed we have only increased a small amount as considered to what can be achhieved with the turbos we see out there .
pretty much in the mtns if you can get 60mph out of it you can climb anything we have short of the unclimbable straight up stuff.
some days it would be nice to know the difference between our actual ground speed and our indicated track speed , ie those 5ft days and you have it to the bar and arent doing much for forward speed .
different tracks and how much snow the tunnel can process on the return stroke which fills the top of the tunnel in deep snow.
will greatly effect track speeds .
throw in the variable of how much the density changes from day to day and any given rider will see a range of track speeds thru out a season .
for the non turbo systems throw in air density changes and the wider range of track speeds seen .
figureing into it the hp versus weight factor and you have even more variables .
looking at track speeds over a 10 year period nd you see non turboed we have only increased a small amount as considered to what can be achhieved with the turbos we see out there .
pretty much in the mtns if you can get 60mph out of it you can climb anything we have short of the unclimbable straight up stuff.
some days it would be nice to know the difference between our actual ground speed and our indicated track speed , ie those 5ft days and you have it to the bar and arent doing much for forward speed .
G
Going West
Well-known member
From what ive found most people have no idea what thier track speed is. They wack the throttle and look and the speedo at the bottom or half way up the pull, not at the top when your sled is really working. If you running 50 mph on a stock 800 you must have the best running sled ive ever seen.
These are the speeds ive had at top of pulls at around 5500 ft
900 cat, full pipe, reeds, RKT head, intake, lite weight parts, VE tunnel, 162 16 wide track, 41-43 dry snow, 35-38 wet heavy snow
09 m1000 full speed werx pipe Rkt head and secondary clutch, reeds and bdx intake 48-50 Max
50 mph constiant track speed is very good for an NA sled and will climb most anything you point it at. Too pull a steady 50 mph you usually will need some significat mods ( ie motor work) or a big cc engine.
These are the speeds ive had at top of pulls at around 5500 ft
900 cat, full pipe, reeds, RKT head, intake, lite weight parts, VE tunnel, 162 16 wide track, 41-43 dry snow, 35-38 wet heavy snow
09 m1000 full speed werx pipe Rkt head and secondary clutch, reeds and bdx intake 48-50 Max
50 mph constiant track speed is very good for an NA sled and will climb most anything you point it at. Too pull a steady 50 mph you usually will need some significat mods ( ie motor work) or a big cc engine.
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One thing i think a LOT of people, espeically the turbo yami crowd is that they swap to smaller drivers when going with bigger tracks..
stock is 10 tooth intro's 2.52 pitch.. 25.2" circumfrance
lots going to 7 tooth 3 pitch = 21" circumfrance... that creates a error factor of 25.2/21 which is 1.2... meaning your speedo is reading 1.2x your actual speed... so say your speedo reads 100mph.... your actual speed is 83 mph.
just food for thought, I know i thought my speed was awsome on my old sled, then i remebered i had that same driver swap... took it back to normal levels..
I have the speedo sensor hooked up on the yamadoo, so ill get some numbers when i take it out!
on spring snow i have seen about 40mph on my 700 rev 151.. m7 153 43mph and 36-38 in deeper snow.
stock is 10 tooth intro's 2.52 pitch.. 25.2" circumfrance
lots going to 7 tooth 3 pitch = 21" circumfrance... that creates a error factor of 25.2/21 which is 1.2... meaning your speedo is reading 1.2x your actual speed... so say your speedo reads 100mph.... your actual speed is 83 mph.
just food for thought, I know i thought my speed was awsome on my old sled, then i remebered i had that same driver swap... took it back to normal levels..
I have the speedo sensor hooked up on the yamadoo, so ill get some numbers when i take it out!
on spring snow i have seen about 40mph on my 700 rev 151.. m7 153 43mph and 36-38 in deeper snow.
S
SSWIM
Well-known member
Yep, elevation is a real HP killer. It is exponetial also. 8k to 10k feet is nowhere near as drastic as the 11k to 13k jump. Even keeping your boost around 20lbs. We have discussed it at length with quite a few turbo tuners. Amazing that at 13k feet my TAPEX will not pull more than 22lbs. of boost with the 2871RS. And 20 lbs of boost at 13k feels like 13lbs. at 9K.
Sam
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kodpkd
Well-known member
OK.... Maybe I am full of it... I just talked to my buddy.. My recall of last year was wrong... 58 MPH... is to fast... I will give it another try.. Sorry,, old guys memory get shorter,,, Need more beer....
At farview they use a radar gun... The only way to know your real speed... But not much to do with track speed..
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