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- #21
sledshedrevy
Active member
i havent a xp sled in the shop with the mod on it so as i could take a pic of it . just ordered the alumi tube we will build them out of today .
inner id is 3 inch from intake sock to the top of the air box on the carbs .the sock is bigger than the cone it sits on and the pulseing of the throttle helps keep it clean when built this way .we do cut the top off the air box on the carbs and put our adaptor top on that will connect up with the snorkelend that comes thru the cab just on the left side top .doesnt hold snow and air flows over it . the sock tower that sticks up from the cab is made of lexan and will take the abuse of tree riding and roll overs if that is how ya get unstuck .
the rave valve mod came about when we had a sled that visually would not open the power valves all the way . no matter what we did it would not open . new components and the computer would not show any failure , even thou we could see that the valves wouldnt open and the sled just ran ill on top end as it wouldnt open up even on clicker 6 at the shop .
frustrated i decided to make the power valves open by exhaust chamber pressure . this accompolished easily . sled test now was normal rippin power that we wanted for mtn riding.i shave the valves down 200ths so they are lighter and aids in earlier flow as well . i drill a hole in the base of the power valve . right were the inner pressure port comes into the base and blows the diaphram open . i removed the spring under the plastic cap and thru it away and screwed the cap back on . still leaveing the two smaller springs were they were .
now block off the steel inlet tube and plug the hose end comeing from the rave valve solenoids .job done , now watch how well the thing lights . no jetting change required .
yes this works well on the big bore 800's, same approach applies on the bb to make power , if you dont mind spending money on higher octane fuel you will see the best results as you increase the compression ratio for the fuel .
here's a cool part about the snorkel kit . the front air box isnt being used and now makes a wicked storage spot once u take it out and gut it , put a door on it and you have dry warm storage .
inner id is 3 inch from intake sock to the top of the air box on the carbs .the sock is bigger than the cone it sits on and the pulseing of the throttle helps keep it clean when built this way .we do cut the top off the air box on the carbs and put our adaptor top on that will connect up with the snorkelend that comes thru the cab just on the left side top .doesnt hold snow and air flows over it . the sock tower that sticks up from the cab is made of lexan and will take the abuse of tree riding and roll overs if that is how ya get unstuck .
the rave valve mod came about when we had a sled that visually would not open the power valves all the way . no matter what we did it would not open . new components and the computer would not show any failure , even thou we could see that the valves wouldnt open and the sled just ran ill on top end as it wouldnt open up even on clicker 6 at the shop .
frustrated i decided to make the power valves open by exhaust chamber pressure . this accompolished easily . sled test now was normal rippin power that we wanted for mtn riding.i shave the valves down 200ths so they are lighter and aids in earlier flow as well . i drill a hole in the base of the power valve . right were the inner pressure port comes into the base and blows the diaphram open . i removed the spring under the plastic cap and thru it away and screwed the cap back on . still leaveing the two smaller springs were they were .
now block off the steel inlet tube and plug the hose end comeing from the rave valve solenoids .job done , now watch how well the thing lights . no jetting change required .
yes this works well on the big bore 800's, same approach applies on the bb to make power , if you dont mind spending money on higher octane fuel you will see the best results as you increase the compression ratio for the fuel .
here's a cool part about the snorkel kit . the front air box isnt being used and now makes a wicked storage spot once u take it out and gut it , put a door on it and you have dry warm storage .