Real World 1500 Mile Low Down of new Ski Doo XR-S 900 Turbo vs. SideWinder

krm said:
Dan try doing like in the video with the throttle with Bens latest TD 210 tune .Not many out there ,but i have it and if you try doing like in the video with your sled in the shop ,or where ever ,it's taking off .I'd say Dave has it figured out also .
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If a tune makes the iTC react faster, then it becomes worse in rough stuff and tight stuff. You will never have both slow speed and high speed reacting like a yam 4s does. Its either too touchy or too delayed, which is why they need to have 3 modes.

All stems from the poor 'too long' intake tract. Will never have good throttle response like a YAM 4s.

Dan
 
Yamaha FZR250.......

If they made a 900cc turbocharged engine similar to the FZR250 I would be all over that!!!!

Ditch the two cylinder low reving junk with electric throttle (which is much more expensive than a freakin cable throttle).

Once again they have taken the cheaper two cylinder tractor motor and tried to make it perform by turbocharging it.

I’m sorry but that Enduro sounds like a straight up tractor engine.
 
ROCKERDAN said:
If a tune makes the iTC react faster, then it becomes worse in rough stuff and tight stuff. You will never have both slow speed and high speed reacting like a yam 4s does. Its either too touchy or too delayed, which is why they need to have 3 modes.

All stems from the poor 'too long' intake tract. Will never have good throttle response like a YAM 4s.

Dan
Click to expand...
Did you get the video ?
 

118 mph out of a 250cc four stroke production bike!
 
ClutchMaster said:
Yamaha FZR250.......

If they made a 900cc turbocharged engine similar to the FZR250 I would be all over that!!!!

Ditch the two cylinder low reving junk with electric throttle (which is much more expensive than a freakin cable throttle).

Once again they have taken the cheaper two cylinder tractor motor and tried to make it perform by turbocharging it.

I’m sorry but that Enduro sounds like a straight up tractor engine.
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since when is the doo a 2 cylinder? I thought it was 3.
 
ROCKERDAN said:
NEW Vid....Skip ahead to 7:14....yes its a horrible throttle system period.
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This video proves Dan's argument with i can't remember who. I think it was Joe.
BUT, this is still a very nice cruising machine.
My bud owns an 850 & a 900T.
He rides the 850 in Vermont & the 900 in Maine on big trips. I hardly rode the 900 so i didn't notice the throttle issue when riding except when i let off completely. I just manipulated the throttle different.
I'm sure with some tuning & clutching it can be made 10 times better, but never perfect............because every other sled is "perfect" including the Sidewinder........NOT!

The most IMPORTANT thing is, Dan realized the 900T is not for him & his trails.
I'm writing this BEFORE Joe & Dan start arguing, then Cannonade will have to step in & ground us all to our rooms WITHOUT TV!

BTW: There is an old dude in Vermont that put over 20,000 miles on his 900T this year with NO problems..........of course he's old without OCD, but hey that has to say something!
 
4strokes said:
since when is the doo a 2 cylinder? I thought it was 3.
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Huh well I’ll be dipped in #*$&@, your correct! I just googled it so it must be true!

I assumed it was a two cylinder with a redline of 7800rpm! #*$&@ a Cat 1100T revs that high!

Either way it has a tractor camshaft and sounds like garbage.

Who the hell ever heard of a 900 triple cylinder with a redline of 7800 rpm?
 
Ok I did a little research and I found the Bore and stroke measurements for the 900T motor.
74mm bore and 69.7mm stroke.

Now a question for all y’all gear heads.... how much bigger is the 900t piston than a big block Chevy intake valve?
 
Ninja 900cc motor with a turbo would be much more appealing than the current 900 skidoo tractor engine.
I would consider jumping if something like that was offered.
 
ClutchMaster said:
Ok I did a little research and I found the Bore and stroke measurements for the 900T motor.
74mm bore and 69.7mm stroke.

Now a question for all y’all gear heads.... how much bigger is the 900t piston than a big block Chevy intake valve?
Click to expand...
Oval or rectangular port?:hide:
 
Shagnos said:
Oval or rectangular port?:hide:
Click to expand...

The point I’m trying to make is the 900t is almost a square motor, all stroke and tiny bore.
A ninja 900 4 cylinder has bigger pistons than the 900t and it’s a three cylinder.
After looking at the specs on this motor it’s a hopeless POS as far as making it fast. The tiny bore restricts the valve size, this makes it horrible for any kind of performance engine.
There’s a lot of tractors out there with a better bore to stroke ratio than this thing.
 
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