Hi i ran my S'S at glamis and i ride to 10,000 feet at home here in N.M with no problems, a little less power on the high mountain tops ,less oxygen , other than that no issues ,Frank

 

Fuel injection baby! Might be slightly down on power because the air is thinner, but it should adjust on the fly as far as "jetting" goes. Had mine above 9000 and it ran great while the carbed Teryx with us was running real bad.

 

I was under the impression that the RZR efi, was a "dumb" efi system. meaning it only tells the injectors to squirt gas, and does not adjust for elevation/temp etc. thats why people have to buy fuel programmers like the PCV/auto tune.

Is this true?

 

im useing an pcV and auto- tune this will do just fine in high allt im going out there tooo! when the auto tune works it keeps the air fuel adjusted an the fly just like your car ~!

 

If you will be there for a while, you may consider adjusting the clutching for elevation.

 

your rzr will be right at home here... gotta love EFI!!!!

 

We run our all summer from UT to the peaks above 11,000 without any problems. in fact we're going up above Central City next weekend for a short day ride.

 

change clutching , easy fix

 

I was told by my dealer when you start your Rzr to let it idle for 10 seconds before going into gear, it is actually learning the exterior conditions during that time

true or not?

My rzr sure does seem to "adjust" its idle... like I live at 6000' and it idles great after 10 seconds... then when we get to the trail at like 11,500' and, again... it idles like it has a miss but in the first ten seconds it smooths out

perhaps I should read the owners manual, I hate manuals..... but I know dealers are often full of it

 

I haven't had my rzr all that long yet, but in the 300 miles I have driven it, I've never had it under 4,200, and probably been in the 8,000 to 10,000 foot range for most of that. The RZR seems to adjust the mixture to compensate for altitude changes quite well.

That said, you're going to loose approximately 30 percent of your horsepower at 10,000 foot, unless you run a blower of some sort. Another thing to keep in mind is that you'll probably see the regular gasoline at the pumps in the area you'll be at offer 85 octane instead of the 87 you're used to seeing. To overly simplify, you'll be able to run fine a couple octane points lower due to the lower intake air density, and thus lower absolute pressure values when the fuel air mixture is compressed.

Have fun on your trip. Mountains are a blast to ride.

 

Where you riding at Jeff ?

 

I’ve only been riding the RZR since labor day, but so far I’ve run the francis peak, and Willard peak areas, all around between Monte Cristo and Logan canyon, from bear lake to Logan peak, up in the cherry creek area of Idaho, and I’ve managed to sneak a days worth of dune riding in at the Little Sahara recreation area. We also tried to do a run up in the strawberry area, but it was to late in the season, and I found myself not being able to hang in there on the snow with the guys on regular quads I was trying to ride with. So far I’ve found on the trails this little thing is great. On the dunes, I found myself wishing I had a little more power, and in the snow, I sink and high center. If I’m not high centered though it gets remarkable traction and handles quite well.

 

We got ours too late to ride Monte this year, got to ride across Ant Flats and back in the State Property in there, when it warms up a bit more we will head out West, lots of riding out there. Got a lift kit on order and looking for a good buy on better skid plates as well.

 

I live at 6,945 ft and have ridin' up to about 12,700 so far here in Colorado. I have absolutely no problems and really don't notice a difference...plenty of power.

 

Thanks for all the good info here.