Install the app
How to install the app on iOS

Follow along with the video below to see how to install our site as a web app on your home screen.

Note: This feature may not be available in some browsers.

  • Don't miss out on all the fun! Register on our forums to post and have added features! Membership levels include a FREE membership tier.

engine wear with turbo

turbo"s really are not any hard on motors than doing mods. i have had turbo motors last longer than Big bores. if you just keep up on maintence turbo's are great.
 
One of the reasons that turbo machines are so reliable is that by changing the fuel mixture with auxiliary injectors/fuel control we typically run a richer than stock air/fuel mixture. Many of the stock machines are running close to the edge of being to lean just to meet current EPA emission standards. Thankfully aftermarket companies do not need to meet these stringent emission standards so we can fuel our machines richer and safer.
 
I theorize that since the sled will make more power throughout the curve riding to the same places as you do now will cause less wear if your not running at 8000+ rpms to do it.

it will probably change the way you ride when you have much more power and oviously the more you push the more you wear .Physics are consant that doesn't change
 
my thought on a turbo wearing a snowmobile out quicker is quite the opposite.....front skis will be brand new as they are never in snow any longer, front suspension stays nice and fresh as it isnt used, and hifax should last longer as only half of the track will be in the snow and the other in the air.....lol
 
In theory running low levels of boost is about the same as running at sea level, so shouldn't be any harder on the motor.
 
Engine

I have been thinking about getting a pro this year. My concern is will the motor hold together. I do not want to pick apart the brand just wondering how many peps have Boosted miles and how many miles on there pro's .
 
I have been thinking about getting a pro this year. My concern is will the motor hold together. I do not want to pick apart the brand just wondering how many peps have Boosted miles and how many miles on there pro's .

Better get that Pro, so you can hang this season with us Kevin:face-icon-small-hap

See you soon.
 
One of the reasons that turbo machines are so reliable.
No dis respect but this statement puzzles me, I've rode with several guys running several different turbos, not one of them was able to ride for more than an hour without having to tweak on something, too hi idle, too low idle, engine only run for ten minutes then die, start right back up and go for ten more, etc. etc. etc. I wanted a turbo but know too many sleds towed out that the whole reliability issue I'm starting to qustion.
 
No dis respect but this statement puzzles me, I've rode with several guys running several different turbos, not one of them was able to ride for more than an hour without having to tweak on something, too hi idle, too low idle, engine only run for ten minutes then die, start right back up and go for ten more, etc. etc. etc. I wanted a turbo but know too many sleds towed out that the whole reliability issue I'm starting to qustion.

Pawpaw,

I completely agree with you. Even though the engines internally seem to hold together better under boost the drivability of these turbo set ups leave a lot to be desired tuning wise. I know there have been advancements every year or season but the two stroke turbos are not a pull and go yet and they do need to be tweaked on pretty much every ride even with the advancements.

I got rid of my BD turbo set up on my D7 mostly because I was sick of playing with the fuel numbers multiple times per day even though I had the upgraded BD EBC and it took all of the fun out of it and obviously the 4 strokes have been much more reliable tuning wise.
 
It seems like most silber kits no one sits there and tunes on them. Boondocker was the one to tune the most until they got their new mapping and tpc.

A lot of it is just maintenance between rides to check things over.
 
I think about pulling the trigger everyday for a Silber or BD but it's just to much $ for me to be messing around with my control box all the time.
That leaves more pow for everyone esle to eat up. If I could buy one knowing I wouldn't be playing around with it all day I'd buy one, hell I'd put one on the wifes sled even.

Sure would love to have a pull and go set up..........
 
Yea turbos are a pain in the neck,(from the G forces) you don't want one! Don't get one, leave all the fresh powder, that you can't get to, for those running turbos! That is of course is if we get snow! If not you won't even need a sled just take your 4 wheeler!

At first it use to bug me when people say, "I have rode with numerous turbos and they never work", or "they are always fiddling with them and never run good." Then I decided why am I trying to convince others, that just means there will be more out running, going places that you couldn't otherwise get to. Now I have changed my view to a glass half full type of view when I hear story's, "I am yet to see a turbo sled run good." Yea, take if off and run it stock! Less turbos out there the better!

In all seriousness, I would say they are not for everyone. If you are one that does not like to tinker, then they are not for you IMO. Don't get me wrong I like to tinker, just not on the mountain in subfreezing temperatures. You just have to do lot of tinkering before you get on the mountain. I look at them like and aircraft. The last place you want to be diagnosing a problem is in the air. Do your maintenance beforehand and keep up on the preventative maintenance, and they will take you anywhere you want to go and probably places you don't.
 
Last edited:
The reason you see so many people messing with their turbos, instead of just riding, is because flat out, most people that are riding turbos, probably have no business riding turbos. THis may sound like an arrogant statement, but it is not intended that way. What I mean is, that there is a certain level of mechanical ability, and a great deal of riding ability required, in order to make owning a turbo sled worth it and enjoyable. For instance, I enjoy tweaking my sled to make it run as close to perfect as I can. However, I do this primarily in my garage, so that there is very little to do once I hit the snow. Yes, I may occasionally change a fuel # on my box, or adjust the boost, but I rarely hold others up in doing so. THis weekend, I rode trees at Wolf Creek, CO, and tried one map that was suggested by a BD rep to start. I liked my old map better, so I switched back to it. Took maybe 15 seconds. Later I went from 10 to 11, to finally 12 PSI of boost. Took me a total of maybe another 20 seconds. My point is, if you take care of your sled, off the snow. Have a fair amount of mechanical ability, and research or learn how to "understand" what the turbo is doing and how it should be running, a lot of the on snow "tinkering" is eliminated. Combine this with the ability to handle a sled making considerably more power than stock, and owning a turbo will become a very enjoyable venture. Neglect your sled, and only buy a turbo because you think it's "cool" and everyone will be jealous (not cause you're actually a accomplished rider), and all your friends will be pissed at you. But hey, at least you can blame it on the turbo....seems to be what everyone else does.
 
I ride a d8 with BD complete set up. Intercooler, EBC, BD recommended clutching, dual egt etc. and have been very happy. Took top end apart to check pistons,cyl, and reeds after 750 boosted miles from last year.
No wear, no broken parts Nothing! I usually run 8.5lbs boost at 6000 ft w/ 50/50 110 and with preventive maintenance have never been broken down yet.
I DO NOT have to change settings and fuel all the time, very rarely actually. Proper installation, assembly, and initial tuning is key.
Owning a boat and snowmobile shop I see and hear lots of opinions, and usually the people that use manufacturer recommended tuning don't have many problems. It's usually the people who think they know better that have issues.
I also know people try to shortcut, ie don't buy ebc or intercooler and expect the same performance. Not gonna happen, you need to spend money to make it right.
I have watched turbo guys who are constantly tuning but I don't ride a cat so.....
icon10.gif

I love my turbo and will never go back. I can't wait to assemble the top end and leave everyone behind again this winter.
Let it snow and bring on the boost!!!!!!
 
Engine wear with turbo

My turbo experience so far: bought a 2009 D8 w/ BD turbo installed by Allsport Polaris in Spokane, Wa. Rode the piss outta it for 2 seasons 1500mi total. 8-9lbs boost w/ straight race fuel for the most part. Sled never left me stranded. Sold it to buy a Pro. Up to that point I'd never been happier with a sled. I'm a not tuner/mechanic or a dicker'r though - It wasn't spot on/tuned to the max, but it ran pretty consistent with very min tinkering, so I was satisfied.

To OP's question: Beginning of 2nd season, Took it in for Polaris's update. Got a call from my dealer, said they were astonished, my pistons looked brand new. Looked better than all the stock sleds they had updated.

For what that's worth, I know u asked about a Pro motor, but think its more on the setup/operator than anything - if ur happy with running it setup on the conservative side, my experience was engine wear was nill. Wasn't the biggest baddest turbo on the mtn, but was no comparison to stock.

Just my $.02
Looking forward to getting turbo on the Pro.
 
Last edited:
Many of the engine issues that the d8 had were eliminated when installing the turbo. Having the right fuel mixture eliminated the piston overheating issue the d8 had caused by the lean mixtures needed by the OEM to pass emissions testing. So in that case installing a turbo actually was easier on the motor than stock.
 
Many of the engine issues that the d8 had were eliminated when installing the turbo. Having the right fuel mixture eliminated the piston overheating issue the d8 had caused by the lean mixtures needed by the OEM to pass emissions testing. So in that case installing a turbo actually was easier on the motor than stock.

yep, thats right on the money. I'd feel better about buying that D8 turbo than stocker in that situation...


My main point for OP was, engine wear with turbo CAN be minimal.
 
Turbo tuning

I have a 08 800 Dragon with the BD PG intercooled turbo kit on it. It has been great. Yes I have had a couple problems over the years but you have that with a stock sled. A turboed sled is only as good as how well it is set up and fine tuned. If it is not set up right from the begining it will not last or you will have driveability problems. Now I just drive it. I open the hood just to look for a problem but there is nothing wrong. Other then when I launched it into the tree, it is quite obvious what the problem is. The turbo kit is fine. The only problem is caused by my riding capabilities. People that say there is turbo lag, or you have to constantly tinker with the turboed sled obviously have never had one and do not know anything about them. If it is set up right from the start there is no problems. And yes there are some people that have turboed sled that are not mechanicly inclined and should not own one, or understand how it all works.
 
Premium Features



Back
Top