For those of you that are considering building a "full blown" 900 projects... here are some things to ponder before you do..
I like the 900's and the way they make power.
And That being said:
Though even if you were to build two identical RAW chassis sleds ... identical except for a 900 compared to a 800CFi... the 800 would hands down be easier to maneuver and more nimble due to less gyroscopic effect from the MUCH heavier 80mm stroke of the 900 compared to the 70mm of the 800. The larger the gyroscopic effect the more resistant the sled is to a change in direction or angle.
I like the torque that the 900's put out...they make power in a different way than their smaller cc brothers ... I like way they make power ... I just wish I didn't have to pay the price in the handling department.... there is a trade off in everything... It is all about finding the balance....
A 900 does not require that you wind it up and take run at a hill as much as smaller machines... they have that low end grunt you cant get with a 10mm shorter stroke.
For example... straight hill-chuters love the 1200 Turbo cats... but Chris Burandt/Brad Rasmussen prefered the 800cc turbo engines in the same chassis because of the improved agility of the smaller stroked engines.
A more nimble sled is easier to "correct" when you hit a bump or chunk of ice when sidehilling or swinging around a tree or doing switchbacks to get up a really steep hill.
It all depends on what you want to do...but you will never get a 900 engine sled to be as nimble as an 800 nor will the 800 be as nimble as a 600.... It's just the way it is. Physics (given the same mods/setup when comparing)
IMO...
For a hill drag IQ or hill climber... a 900 in a RAW 162/174" with a turbo and Dans crank.
For a "swiss army knife" of a Polaris sled... An 800 CFi 155" (Turbo even better)
For the ultimate boondocker... a 600 (64mm stroke) based, 144" tracked lightweight machine with 38" ski stance, and all the goodies.
I wish the 727 was offered in a CFi version.
I love the unerdog... and I really like the thought of showing up the "800 guys" with the Ole 9er... what extent am I willing to go to try to make this happen is the question and will the dollar investment make the end product worth while or not when compared to the same investment in something eles... this is a question only the owner/rider of the sled can answer.
I've been receiving lots of emails and PM's asking "how do I make my 900 handle like my buddies 800... I really want to show him up with my sled". With the attractiveness of the 900's because they look very similar to the RAW sleds AND they are MUCH less expensive to buy (not less expensive to own)... people are looking for a more cost effective way to get a great sled....But to get it up near the overall handling of the RAW chassis sleds... the $$ you have to put in them is pretty scary.
I like the 900's and the way they make power.
And That being said:
Though even if you were to build two identical RAW chassis sleds ... identical except for a 900 compared to a 800CFi... the 800 would hands down be easier to maneuver and more nimble due to less gyroscopic effect from the MUCH heavier 80mm stroke of the 900 compared to the 70mm of the 800. The larger the gyroscopic effect the more resistant the sled is to a change in direction or angle.
I like the torque that the 900's put out...they make power in a different way than their smaller cc brothers ... I like way they make power ... I just wish I didn't have to pay the price in the handling department.... there is a trade off in everything... It is all about finding the balance....
A 900 does not require that you wind it up and take run at a hill as much as smaller machines... they have that low end grunt you cant get with a 10mm shorter stroke.
For example... straight hill-chuters love the 1200 Turbo cats... but Chris Burandt/Brad Rasmussen prefered the 800cc turbo engines in the same chassis because of the improved agility of the smaller stroked engines.
A more nimble sled is easier to "correct" when you hit a bump or chunk of ice when sidehilling or swinging around a tree or doing switchbacks to get up a really steep hill.
It all depends on what you want to do...but you will never get a 900 engine sled to be as nimble as an 800 nor will the 800 be as nimble as a 600.... It's just the way it is. Physics (given the same mods/setup when comparing)
IMO...
For a hill drag IQ or hill climber... a 900 in a RAW 162/174" with a turbo and Dans crank.
For a "swiss army knife" of a Polaris sled... An 800 CFi 155" (Turbo even better)
For the ultimate boondocker... a 600 (64mm stroke) based, 144" tracked lightweight machine with 38" ski stance, and all the goodies.
I wish the 727 was offered in a CFi version.
I love the unerdog... and I really like the thought of showing up the "800 guys" with the Ole 9er... what extent am I willing to go to try to make this happen is the question and will the dollar investment make the end product worth while or not when compared to the same investment in something eles... this is a question only the owner/rider of the sled can answer.
I've been receiving lots of emails and PM's asking "how do I make my 900 handle like my buddies 800... I really want to show him up with my sled". With the attractiveness of the 900's because they look very similar to the RAW sleds AND they are MUCH less expensive to buy (not less expensive to own)... people are looking for a more cost effective way to get a great sled....But to get it up near the overall handling of the RAW chassis sleds... the $$ you have to put in them is pretty scary.
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