unifilters on a rev 800HO???

[wildcard28]

Has anyone run Unifilters on a rev 800 ho I read a few threads where other have ran them and put the dpm sensor in between the filters zip tied it in between the filters , has anyone done this ?? I have some on now just experimenting but havent`t rode the sled this way and have the dpm sensor secured and fastened between the filters, I have lots of venting on my side panels, for fresh air and hot air to get out, what you think???

I know Timbersled makes a kit but pretty expensive I`m thinkin of makin my own type for me personally, does it have to have the SPI, Kickass or K&n filters and is the aluminum shield nescessary, can you put the dpm sensor around the filter like mentioned above like above one of the filters like timbersled does on there rev kit or put it somewhere between the filters ??
not sure if I beleive it or not but timbersled says the fins on the back side of the secondary fans or blows air to the filters , I don`t really beleive that..

I`m wanting to do this to free up some space in the engine compartment (Have already more room since I deleted the oil injection), and would like to loose the air boxes, if this would work I already have it figured out how I would fill the top notch or gap on the LH side panel I have an extra airbox I have cut up and used just the top part of it to still run the filter sock so it would all look stock, I have another complete outer and inner airbox set up if it need to be put back in.

any suggestions would be appreciated.

Thanks, Wildcard

 

[mastertech]

I run Uni- Filters with the slip on pre-filters. I have huge problems on deep powder days with clogging up my stock intake with snow/ice. The only reason I run them. All though it does clean up the engine bay and looks nice!

 

[jacmmaxwell]

I run them on my 1000 and now I'm getting an 800 and wanted to run them on it... that belt dust gets in the stock setup and likes to eat rod bearings.

I like the room you have with no air box and just a pair of uni's on there... I did install a complete set of vents to increase air flow. On the 1000's we just relocate the sensors ( air temp and air pressure ) one mounts to the frame and one ... like you mention mounts as close to the filters as possible, that is the air temp sensor.

I know they are not the same sleds but it's worth looking into for you, and like mastertech mentioned , even on the deepest day I have no problems with snow and ice in the intake. More than once this had made the "stuck or not" differance.

I'm sure you'll hear the don't do it... warm air makes less power. Longer motor life, cleaner engine bay and no deep snow bog and you might lose 1-2hp.... sounds like a fair trade to me.

 

[mastertech]

Wildercard.. if your looking to go that route you will love them. I would only do it if I were you if you vent the crap out of your sled. Which you should do any ways. Look up modrod vents. The best vent out. Brian is a good guy.

 

[wildcard28]

Wildercard.. if your looking to go that route you will love them. I would only do it if I were you if you vent the crap out of your sled. Which you should do any ways. Look up modrod vents. The best vent out. Brian is a good guy.

Thanks, for the replies guys, Mastertech could you post some pics of the type of filters you run and what it looks like under the hood of your 800 and where the sensor is located, I would like to see what type of filters you have.

The unifilters I am asking about aren`t the shorty triangular or pointed type they are the longer rounder filters that oil you can clean and re-oil, if those are the type you run I will order a set of the prefilter covers for them and go this route, or will have to order the other type filters like is shown in the timbersled kit, which I beleive they mention are SPI filters and I have read where some replace those with kickass or K&N filter with prefilter socks also.l
I`ll get those if I have to but If I can run the Unifilters I have now would be cool just to go that route.

My sled does have plenty of venting to the sides of the sidepanels top and bottom and on the rear or the panels also, I`m still going to add a couple smaller round vents to the upper dash panel, cut out the center of the speedo cover and make it a vent.

wildcard28@msn.com if you would rather send pics there , but posting for here for others to see would be cool too, I`ll try to get some pics of what I have now posted in next day or two,

Thanks, Darren

 

[907to406]

I ran pods on my 800 rev. Had no issues at all in deep snow after all the venting was said and done. Lots of guys will slam pods but if you have EGT's and can jet a sled and tune your sled you'll be just fine. Sure it takes a little time to get it running the way it should be but after that your golden. The main benefits are obviously weight loss, but also ease of re-jetting on the hill and overall just working on the sled is much nicer with that big airbox gone. Just make sure you use pre-filters.

 

[wildcard28]

I ran pods on my 800 rev. Had no issues at all in deep snow after all the venting was said and done. Lots of guys will slam pods but if you have EGT's and can jet a sled and tune your sled you'll be just fine. Sure it takes a little time to get it running the way it should be but after that your golden. The main benefits are obviously weight loss, but also ease of re-jetting on the hill and overall just working on the sled is much nicer with that big airbox gone. Just make sure you use pre-filters.

Sweet sled, thanks for the reply and pics I like the tunnel also

what did you do with the airbox sensor , I can see it in the pic is it just hanging or how did you personaly fasten it? does it have to be closer to the filters?

Thanks, Darren

 

[907to406]

I just ziptied it and let it dangle there. I didn't notice any effect on things. Also the shroud that timbersled provides in their kits is pointless and reduces the amount of room in the airbox area significantly so I would say if you do get their kit just throw that out. You'll be better off just buying filters and pre-filters.

 

[wildcard28]

I just ziptied it and let it dangle there. I didn't notice any effect on things. Also the shroud that timbersled provides in their kits is pointless and reduces the amount of room in the airbox area significantly so I would say if you do get their kit just throw that out. You'll be better off just buying filters and pre-filters.

Ok cool thats the info I have been looking for, but my biggest Question is >>>Will the foam type 6inch Unifilters I have work ? or do I actually need the tapered filters like you, Mastertech and Maxwell have???

I will actually make a small bracket off the frame to put the dpm boot and sensor in to fasten it more securely. when I had the sensor ziptied to the crosstube between the carbs cause I extended the wires by about 3 inchs to get it to reach there I didn`t notice any difference on how it ran, but that was just riding it around the yard and not in the hills ya know.

Thanks, Darren

 

[jacmmaxwell]

Your filters are fine, mine are about the size of a soda can and do not taper. I can measure them tomorrow. I would run some prefilters to trap the finer dust and skip oiling the UNI's they don't need it in a sled.

The oil is to catch the super fine dust in the dirt, I oil them on my bike and it runs rich for about 100 miles after oiling it due to restricted air flow. I prefer the UNI's to the cotton style cause if they get wet you just wring them out and your off.

I just brought an 04 rev 800 home tonight and plan on running pods on it.

 

[wildcard28]

Thanks , Maxwell I didn`t see a reason why my filters wouldn`t work, they run good on my 97 summit that has a 700 tripple in it and my riding buddy rides a 97 summit also with a Nutted out 780 triple with unifilters and no oiling and works great on his sled he has a br tech hood with even no vents or screens in the hood and doesn`t seem to get any snow back on them unless he pile drives through a drift or cornis tip with the nose it shoves a bit of snow in the vent areas of the hood , course his motor doesn`t have any dpm or devise like that on it. so no concern on his sled about a sensor like we have.

I`ll post pics when I get the sensor mounted and the filters back on , have to load them into my photobucket and then on here from there ,can`t figure out how to get them posted from my Computer to this site.

I thought I was going to get out for a ride last sunday, so since I was unsure on this set up I put the extra 07 airbox setup I had in it, so its coming back out and trhe uni`s are going back in , I have some prefilter material , and I`m going to make my own covers for the Uni`s.

Thanks Again, Darren

 

[wildcard28]

Hello here are some pic of the pod filters and where i located the sensor and the bracket I made for it, also vented the side panels alot and removed the oil injection but cut up the original oil bottle to retain the mpem mount and coolant bottle front mount and part of the pull start mounting position also worked out pretty well.

Also cut out the rear of the sidepanel and footwell for better foot location

Wildcard

 

[Kawikid1989]

Hello here are some pic of the pod filters and where i located the sensor and the bracket I made for it, also vented the side panels alot and removed the oil injection but cut up the original oil bottle to retain the mpem mount and coolant bottle front mount and part of the pull start mounting position also worked out pretty well.

Also cut out the rear of the sidepanel and footwell for better foot location

Wildcard

What kind of air filters did you use? Did you need to jet at all? I am doing the same thing to my machine right now.

 

[wildcard28]

What kind of air filters did you use? Did you need to jet at all? I am doing the same thing to my machine right now.

Hello I am currently using K&N Unifilter that are 6 inch lock they came with the oil you can put on it but it was suggested to me not to run the oil on them it will just collect belt dust restrict air flow I don`t think they really need the oil anyway I won`t put it on I`m going to run them dry.

I am eventually goin to put the shorter tapered pod filters from k$n or the more inexpensive ones like this link go to the bottom of the page, but you can get them from denniskirk.com or high performance engineering and other places just make sure you measure the outer part of the carbs when the filter would go on so you get the right size, the outer filter covers would would be good for the too those are what I am eventually going to run I put the filters I have pictured on cause i had them left over from an S Chassis sled that had a tripple conversion in it before. I don`t notice any difference in how the sled runs but again haven`t had it in the cold or on the hills yet.
http://timbersled.com/airintake.htm

I haven`t had a chance to ride the sled in winter conditions so I`m not sure about if I have to change jetting most of what I read not many actually changed jetting much at all.

Good Luck, Wildcard

 

[TARI]

better to stick with an air box flows better then pods, no restriction, also no hot air, loss of hp. just get a airbox mod, keeps humidity from getting to the carbs, loss of hp! and don't look back.
feel free to ask if need.

 

[byeatts]

better to stick with an air box flows better then pods, no restriction, also no hot air, loss of hp. just get a airbox mod, keeps humidity from getting to the carbs, loss of hp! and don't look back.
feel free to ask if need.

Running Pods on a 880 and had to open fuel screws another full turn, Flow is not the same. Works very well on the 07 without thermostat and engine runs much cooler then other years with Thermostat.On the 07 vent and run pods. other years may be a toss up.

 

[wildcard28]

I have a complete 07` airbox assembly if the pods don`t work but I beleive they will flow better than the air box, I have tons of venting to the top, sides and lower and rear of both side panels plus all that is already in the hood so if nose vents get plugged on powder days the side panels sides and rear and venting in the dash will allow Plenty of air to get out and cold air in,

I would like to know how much Hp loss pods will take from the motor, probably not much if its a couple hp doesn`t bother me to have a cleaner and easier to work on motor, and my clutching, gearing already put down more hp than the stock did in the first place, along with all the weight loss mods I have done to this sled. more than made up for a few hp loss.

I`m just worried about the mpem puttin the motor in a lean condition if that happens and can`t compensate for it then I`ll take the pods off and put the 07 air boxs on.

I know I might have to jet differently but don`t think much sled is already on the rich side.

I`d imagin why you had to turn the screws out especially when the motor is a 880cc and probably had modified ports in the heads and maybe a modified head, for most likely lots more fuel and air flow too along with 80cc bigger. bound to have changes over pods on a stock 800cc engine.

Wildcard

 

[jacmmaxwell]

I hear every one say that you loose HP, but show a dyno sheet telling me how much.

More important to me than how much power is lost or gained by a mod is were is lost or gained. I could see the pods loosing a pony or two down low but you can't compair the flow rate of the pods to the air box.

Even the hot air agument does not hold much weight with me, I'm sure it gets a bit or heat off the engine and exhaust but if you have that thing well vented and vented in the right spots then your only pulling hot air if your parked ( like dyno runs ) but once you have riden more than 10 feet you have cycle fresh air in there.

I had the uni's on my RT1000 and it ran great, my new XP came with a timbersled intake on it and it's staying on there... unless it proves me wrong on this matter.

 

[Kawikid1989]

Thanks guys! Basically all i want is to keep belt dust, road dust, etc, from getting into the engine. Im sure the stock setup would be alright, but i dont believe that setup is totally sealed anyways. Plus when i go sledding towards the end of the season, lots of the gravel roads we drive on to the mountains are dusty as hell!

If i loose one or two horsepower, i doubt ill notice, these machines have alot of jam factory!

 

[Kawikid1989]

Hello I am currently using K&N Unifilter that are 6 inch lock they came with the oil you can put on it but it was suggested to me not to run the oil on them it will just collect belt dust restrict air flow I don`t think they really need the oil anyway I won`t put it on I`m going to run them dry.

I am eventually goin to put the shorter tapered pod filters from k$n or the more inexpensive ones like this link go to the bottom of the page, but you can get them from denniskirk.com or high performance engineering and other places just make sure you measure the outer part of the carbs when the filter would go on so you get the right size, the outer filter covers would would be good for the too those are what I am eventually going to run I put the filters I have pictured on cause i had them left over from an S Chassis sled that had a tripple conversion in it before. I don`t notice any difference in how the sled runs but again haven`t had it in the cold or on the hills yet.
http://timbersled.com/airintake.htm



I haven`t had a chance to ride the sled in winter conditions so I`m not sure about if I have to change jetting most of what I read not many actually changed jetting much at all.

Good Luck, Wildcard

I was looking on unifilter.com and came accross some snowmobile clamp on filters. They looked pretty decent and it says "not for dirt use". Thats good because i hate riding my 800 on dirt.......

I guess ill run em and see if its too lean or not. Thanks!