Hey, just looking for info on this ? Who is using it, do you see any performance differences and did you have to re-jet the carbs ?
Thanks for your input and opinions......CHEERS
I am running one. In my case there was a difference. Most stokeirs just beconsistent with power. As the engine heats up it retatds timing. Sled will run cooler. No re jetting required.
I have ridden sleds that have the engine tech block. I wouldn't say it pulled any harder for any longer of a time. The heat fade felt in the 800R is felt more in the mid range due to lean jetting than it is a WOT issue and having a large thick single piston ring. On WOT pulls the thermostat is open due to operating temps on almost every pull regardless if it is a HO thermostat or the R thermostat.
Yes the 800R retards performance above 140 degrees, so even with an engine tech thermostat block with the 120 degree thermostat it will continue to get hot the more you ride it at extended WOT pulls.
The system is designed to protect itself. All you are doing is cheating the system a few more degrees. On a trail the thermostat may keep it from running hot, but with a proper snow flap and not runing on hard pack it shouldn't over heat either.
So, does it make a difference? It may, I wouldn't say its a huge improvement, and riding someones sled who is modded that has it is a tough way to judge as their other mods may benefit more from it.
Ok, getting mixed opinions on this subject both here and other fellow sledders, I just dont want my sled to over heat or bog down in deep snow!!!!!
So, to spend 500 to 800 bucks on upgrades, what should a guy spend it on ? My biggest problem with xp's is engine bog due to air filter being plugged, pisses me off. what a chitty design by BRP !!!!!!!!!!!
Anyways mr.johni_t, was a chitty year last year, only made it out l think 5 five times. did some what of a career change, still mechanics just dumped the chitty dealer life. l have a ported track, but heard not much of a difference for a $1000 upgrade.........l will give you 5g for that beat up freeride, lol.........
deaner does your exhaust leak at any of the joints? i no when my exhaust bushings wore out she'd bog a little in the deep pow..
If you are adding florites to the lower air box you would deffinetly want to richen up the mid range. The needle shims are easy to change.
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back to the thermostat, the biggest point everyone is missing is that it flows more coolant than the stocker. This may or may not change your opinion, but i know what mine is.
As for flow rites in the back.... WHY!!!. so your motor likes hot air and clutch dust?? hot air to fix a bog, makes sense i guess . Slp intake and bondi box or c3 box is my opinion.