How do you get rid of the exhaust bog

[Skyking]

I have a 2009 xp with a Garrett Turbo Performance kit that I just put on. Whenever I turn right it bogs bad. I have cut my pipe as short as possible. It drives me crazy. I keep getting stuck because of it. Anyone run dual exhaust with one of them a tunnel dump. Or just bolt on a big snow deflector.

 

[badass1000]

My exhaust is simular to the turbo performance setup. I am runing a 3" exhaust out the stock location. I do not have any problems with boging when turning on the exhaust side. it rarely does it in deep powder, but I believe it is still gitting fine snow in through the side panels and vents. I am going to build a box to mount on the intake of the turbo and cover it with prefilter material. mtn-doo has a post with a pic of the setup he made. I want to do something simular.
I have a vent in the shock tower in front of the turbo. I have a vent on the very front triangle piece on the side panel. it was on before the turbo so it did not have prefilter material on the inside of it. turbo only has a screen over the intake now. When I would lay it on its right hand side in deep powder it would bog and not pull through the rpms. Just sputter. The egt's would drop down to 400 degrees or so for awhile. it would sputter for a while and egts were way down. then it would clear out, egts come up, and run like normal. I put prefilter material on the inside of the side vent and the boging is almost gone. it still does it once in awhile on super light and deep days. hopefully putting the prefilter box over the intake will take care of it. I don't think it is from the exhaust getting pluged.
If it still bogs after this I will look into putting a deflector in front of the exhaust or posibly do a tunnel dump. skinz protective gear I believe makes a deflector that rivets to the raised plastic on the bottom of the xp. slp also makes a deflector. Quantum velocity is the only place I have seen with a tunnel dump for the xp.

 

[stalefish_132]

only way to stop the T- XP bog is to tunnel dump it.

 

[badass1000]

so if the exhaust is pluging up and boging why would a turbo bog and not a n/a xp? Exhaust comeing out in the same location.
Mine rarely does it now. I am hoping when I put a prefilter box over the intake in a couple weeks it doesn't do it at all. I believe the only reason it does it now is a little light snow gets in once in awhile.

 

[Skyking]

I have the 6 piece extreme air vents with pre-filter material on the exhaust side. I also put aluminum screen door material over the turbo intake. When I get the bog I open up the side to see if any snow is getting in. No snow. I really don't think it is a problem with the snow getting in as much as the exhaust cant flow freely. Bryce told me that a turbo will always have some bog in deep powder. This is unacceptable to me. Who wants to not be able to ride there sled in powder. He was suppose to send me a exhuast deflector with the new gauges. That did not happen. So I have one coming from skinz. That will be the next step. If that does not work. Then I am going to try dual exhaust. One in the stock location and the other a tunnel dump. This turbo thing is really starting to be more of a pain then it is worth.

 

[10001110101]

so if the exhaust is pluging up and boging why would a turbo bog and not a n/a xp? Exhaust comeing out in the same location.
Mine rarely does it now. I am hoping when I put a prefilter box over the intake in a couple weeks it doesn't do it at all. I believe the only reason it does it now is a little light snow gets in once in awhile.

cause you have already plugged the exhaust with a turbine and then you plug it even more with snow, and for what its worth you can make a stocker bog in the deep snow on a downhill sidehill to the right everytime! Jetting has alot to do with it, if you are on the rich side just off idle it will exagerate this condition.

 

[badass1000]

yeah. I am sure the turbo is really pluging the exhaust. Probably just as much as the extra drag created by a supercharger.
I know even boging once in the wrong place is not very fun.
I guess I don't see it as that big of a issue if it bogs a little a few times a day. The extra power more then makes up for it.
I might order one of the skinz snow deflectors also. The tunnel dump looks like a pain in the *** on the xp. I might try it.

skyking. How many lbs of boost are you runing? elevation, and fuel?
My xp even at only 7lbs of boost at 6,500'+ on pump fuel really rips compared to any n/a xp. Just got a 55 gallon drum of 107 motor octane fuel and will be runing 10lbs soon. going to try 30% 107 mon, and 70% non ethanol premium pump.

 

[Skyking]

I am riding between 6500-10000 feet. I have the 6 pound spring in the waste gate. I run between 8-10 Lbs of boost on 100% avgas. Yes the sled does have a lot of power. But who just wants to run it in a strait line? Anytime i turn to the right it bogs. Anytime. And not just a little bog. It will stop the sled unless I can get the exhaust up in the air with a hard left turn before I get stuck. The only time it does not, is when I am wide open and do shallow turns to the right. I just always have to turn left. I am still trying to tune the thing in, so that my help. I have been out 4 times now, and almost have it. I HOPE!

 

[badass1000]

most of my riding is tight and in the trees. that is what I enjoy. Extra power really comes in nice. their are alot of times I think I am stuck and it pulls through. Only down fall is that the front end comes up to much when going too slow and it is steep. have a 154. Just put a challenger extreme 2.5 on it and a timberlsed rear skid. can't wait to ride it tomarrow and alot more this next week.
Hopefully you can get it figured out. It is alot of fun once you get it figured out.
Turbo performance should be able to help you out.

 

[TWARD700]

I had the same problem with mine if you have a shock tower vent then the snow hits the vent vaporizes to water then goes into the turbo. You wont see any snow in the compartment because it turns to water when it hits the vent. I built a intake that pulls air from up by the oil injection tank now and rode in 3 feet of powder this weekend and it worked flawless no bogging at all in the trees all day. Try taping up the shock tower vent and putting a prefilter material over the turbo intake.

http://www.snowestonline.com/forum/showthread.php?t=242773

Sent from my DROIDX using Tapatalk

 

[badass1000]

You need to build a intake like TWARD700 posted or mtn-doo. need to get some surface area to the prefilter. Just prefilter over the turbo is too small of a surface area and will not flow very well.

 

[mtn-doo]

I have a Turbo-performance pkg that rocks!!! Here are a couple things to consider. I am running 110 race gas, leaned it out to get in the 10's and 11's on my EGT's. And have no powder bog after installing a deflector at the pipe outlet. Bryce has a very cool deflector he is working on. Give him a call. I have a filter intake I built also, but without that filter, you wouldn't have a bog anyway? That won't matter, it's all under the hood and never see's snow. I would address jetting and powder stuffing your exhaust. I hope this helps!

 

[swrev]

Since there are quite a few XP turbo guys responding on this thread I was wondering how your sleds are comparing w/ the efi sleds w/ similiar boost, Cat/Polaris? My noss setup just isn't going to cut it. Went throught two bottles, a cylinder and a piston on the last ride I rode w/ a new Pro RMK w/ a Boondocker pump gas setup and it is not worth the $$$ unless he starts to run more boost. The 860 Doo's in our group outperformed it unless you were in a really long pull. Have you compared to any good running 860's or what boost did you have run to outperform them?

Also my riding runs runs about 4000' to 10,000' depending on which mountain range we choose. Has anyone tried that much change w/ adjusting the powerjets only? I've heard that they allow for 4000' of change, that would mean rejetting from one mountain to the next.

Just wanted to hear your thoughts. Thanks

 

[mtn-doo]

I have ridden with several other boosted 2-strokes. The 800R "loves" boost. There has not been a Cat or Pol with equal boost that can touch the 800R. Another wat to say it, is the 800R at about 6lbs is equal to a 10lb set-up on the Cat and Pol. As for jetting, yes, you have a window of about 4000 ft. I have found that covers about everything except for that "huge change" we sometimes make. I jet real lean for the bottom of our area, even run that first couple miles with the fuel-enrichment 1/2 open, then I'm dead on all day for a 4000 ft window. The 800R on 10 to 12 lbs boost is incredible.

 

[DBL T]

I have experienced the bog.found that i was to rich. I changed jetting mains are 300 power jets open one and a half. my egts were always 10 to 1100 now 12 to 1250 have not had a problem since.I dont have anything on the intake just the vent in shock tower.If u decide on a tunnel dump make sure you use both stock hole and tunnel dump.I have this on my 1200 skidoo turbo found that if only tunnel dump when stuck plugs pipe and wont run.Both are TURBOPERFORMANCE garret kits.They have been awesome cant wait till etec is ready

 

[Ridin Ak]

View attachment 125944

View attachment 125945 I have experienced the bog.found that i was to rich. I changed jetting mains are 300 power jets open one and a half. my egts were always 10 to 1100 now 12 to 1250 have not had a problem since.I dont have anything on the intake just the vent in shock tower.If u decide on a tunnel dump make sure you use both stock hole and tunnel dump.I have this on my 1200 skidoo turbo found that if only tunnel dump when stuck plugs pipe and wont run.Both are TURBOPERFORMANCE garret kits.They have been awesome cant wait till etec is ready

damn my friend.. those are some beauty's, any more info on whats done to them? how do you decide which one to ride in the morning?
at 10lbs of boost on both sleds which one pulls ahead?
sorry to stray away from the topic but just curious

 

[DBL T]

XP IS AWESOME 10 LBS OF BOOST TURBOPERFORMANCE WRAP.tHE 1200 IS AN ANIMAL THERE IS NO COMPARISON 10 TO 12LBS OF BOOST 162 POWERCLAW TRACK M10 SUSPENSION VANAMBURG TUNNEL turboperfprmance garret kits on both either one on any day is a blast.Thanks for the compliments

 

[swrev]

I have ridden with several other boosted 2-strokes. The 800R "loves" boost. There has not been a Cat or Pol with equal boost that can touch the 800R. Another wat to say it, is the 800R at about 6lbs is equal to a 10lb set-up on the Cat and Pol. As for jetting, yes, you have a window of about 4000 ft. I have found that covers about everything except for that "huge change" we sometimes make. I jet real lean for the bottom of our area, even run that first couple miles with the fuel-enrichment 1/2 open, then I'm dead on all day for a 4000 ft window. The 800R on 10 to 12 lbs boost is incredible.

Thanks for the reply. How is your sled for throttle crispness? I see you are in Montana also, ever get over to Lincoln or ride in the Belts? I would love to watch how your sled worked.

 

[utah_sledder]

Hey skyking, I have a txp from turbo performance. I have no powder bog at all. I think you may have a fuel problem. How does it feel after a long pull and you chop the throttle? Does is feel like is needs a second to clean out? I also wonder if you might try running 50/50 mix of 91 to AV. AV gas is really closer to 130 octane than 100 (do some research on AV gas they don't use the same ratings as automotive fuel). You may not be building enough heat in the engine to burn through all the fuel. When you carve to the right it makes it even richer...because it can't pump the burnt fuel out.

 

[swrev]

I'm about the stroke of a pen away from doing the turbo--does anyone regret going Carb turbo? I think I can live w/ 4000' of adjustment w/ powejets. Any final thoughts, I just can't bring myself to go Cat or Polaris right now.