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turboed polaris triple project.

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16K views 32 replies 17 participants last post by  madcow  
#1 ·
so im tossing around the idea of adding a turbo to my motor projest. im starting off with a 97 polaris ultra 680 bottom end and i am going to have the crank done with ceramic crank bearings. then im going to be tossing on some xcr 800 cylinders that i will probably send off to microblue to have them coated so i can rev out to 20k rpm. http://microblueracing.com/ now on top of all this i am thinking about getting a small turbo and running like 6-8 lbs of boost through it. i can get all my parts from a friend except the turbo itself.

what i am wondering is
1. does anyone have any information of turboing a polaris triple like this.
2. would it be worth the time and money or would it just blow up in my fac every time i hit the throttle?
3. how much boost could i safly run through it? is 6-8lbs a reasonable number?
4. what knd of turbo should i get? i was thinking about just getting one off ebay for around $300. i have no idea about sizing a turbo to the application so i need some help. im guessing a t4 would be to big?

any general information on this would be great!

btw all this will be going into a iqr chassis within a year or two. just have to find the right deal on a roller [thumb]
 
#2 ·
I don't mean this to sound mean in any way, but I think you're getting in too deep. If you need to help on what boost levels to run, I think this is a little too deep for you. Maybe I'm wrong, that turboing isn't just slapping some piping together.
 
#3 ·
i know that im just not sure what these cylinders and pistons will wistand before they explode lol. i can turbo a car but a 2-stroke snowmobile is something new to me.
 
#4 ·
Did you say spin it at 20,000 RPM's?????[xx(][beatup][xx(][beatup][xx(][beatup]the motor will become a pile of scrap pieces long before it could ever hit that high of RPM's,even the most high strung pro stock motors rarely ever see over 10,500,it is just not physically possible to spin the motor you are decribing that fast,as for the 6-8 lbs of boost your talking about,that is average for trail use with pump gas,oh wait,I forgot to ask at the beginning of this......have you been smoking some of that synthetic weed with Miley Cyrus????,Because that is the only reason I can come up with to explain such a far fetched rediculous idea,turbos on 2 stroke triples have been done many times,but it will take a whole lot more that a $300 dollar paper weight turbo off of FLEA-BAY,not to mention everything else required to make it all work,sorry if I disappointed you but in reality your gonna need at least 10k to make this even try to happen.
 
#5 ·
sorry.... ment 10k typo. like i said i have all the parts except th turbo itself. thats why i am interested in doing it. as for my application it would be pump gas for trail use. i need to reread my posts more .
so with that past us, can i get some real help on this.
what size turbo would be best for me to use?
and i dont see wher you get $10k from, you can easily turbo a sled for $3000
 
#6 ·
http://lacrosse.craigslist.org/rvs/2674974565.html
Why you just buy this....... 350 hp my @ss

Sorry I am no help but I will be watching this thread [lurker][lurker]
 
#7 ·
Manifold?
Intercooler set up?
Piping?
What are you doing for fuel management? If you are going to run carbs, plan on jettig all the time. If you do not, you will blow the motor with every change in temp and barometric pressure.
You going to run a control box? It would probably be good to do taht, since you will need to monitor EGT constantly.
The kit for the Dragon 700 comes with a Garett GT2860rs.
Now,
are you going to control for boost spike? At 10,000 RPMs, if the boost spikes, there goes your motor. If you set the boost too high, there goes your motor. If you run too rich or too lean on a carbed machine, there goes your motor. If you feel like tuning everyday, then go ahead.
When I wanted to turbo my new civic, I went to an auto sports store and I asked him if 4 grand would cover it. He laughes, said 6 for the turbo, and 10 more for when you blow it up.
If you dont know what youre doing, dont do it.
If you feel like trying, let us know how it goes.
Good luck
 
#8 ·
MXZfasty02 said:
Manifold?
Intercooler set up?
Piping?
What are you doing for fuel management? If you are going to run carbs, plan on jettig all the time. If you do not, you will blow the motor with every change in temp and barometric pressure.
You going to run a control box? It would probably be good to do taht, since you will need to monitor EGT constantly.
The kit for the Dragon 700 comes with a Garett GT2860rs.
Now,
are you going to control for boost spike? At 10,000 RPMs, if the boost spikes, there goes your motor. If you set the boost too high, there goes your motor. If you run too rich or too lean on a carbed machine, there goes your motor. If you feel like tuning everyday, then go ahead.
When I wanted to turbo my new civic, I went to an auto sports store and I asked him if 4 grand would cover it. He laughes, said 6 for the turbo, and 10 more for when you blow it up.
If you dont know what youre doing, dont do it.
If you feel like trying, let us know how it goes.
Good luck
i will build the turbo setup after pipes. use a 3 into 1 manifold off a polaris storm, cut the end and weld on a flange for the turbo.

it would be flatslide carbs with holtzman atacc so jetting wont be required

i am looking for a digitronIII egt setup.
 
#11 ·
First off, I think we are being a little to hard of him since he is only asking some questions. Though in my opinion, its not worth adding the turbo. I'm not really convinced that putting a built triple into a iqr is the best answer either, but that is just my view and its totally up to you. I just saw a iqr with I believe a 910 straightline mod motor ($4000)in it and that seemed wicked but you might be able to make more hp for your buck building the triple.




98700xc said:
Did you say spin it at 20,000 RPM's?????[xx(][beatup][xx(][beatup][xx(][beatup]the motor will become a pile of scrap pieces long before it could ever hit that high of RPM's,even the most high strung pro stock motors rarely ever see over 10,500,it is just not physically possible to spin the motor you are decribing that fast,as for the 6-8 lbs of boost your talking about,that is average for trail use with pump gas,oh wait,I forgot to ask at the beginning of this......have you been smoking some of that synthetic weed with Miley Cyrus????,Because that is the only reason I can come up with to explain such a far fetched rediculous idea,turbos on 2 stroke triples have been done many times,but it will take a whole lot more that a $300 dollar paper weight turbo off of FLEA-BAY,not to mention everything else required to make it all work,sorry if I disappointed you but in reality your gonna need at least 10k to make this even try to happen.
My YZ250F (when in stock trim) made its peak hp at 11,300 rpm and the rev limiter was at 13,500 rpm. 20K rpm your engine would never make it there, but he said he meant 10K rpm, just a typo, not a big deal. I agree with you about the cheap turbos being comparable to a paperweight but you can do a turbo under $10k.
 
#12 ·
Can you do a turbo for 3-4k? The answer is yes BUT how well it works and how good the fit/finish is will depend on a how much your willing to spend.....just the custom pipes for it can easily run 2k.
 
#14 ·
Not one of you considered the oiling system for the turbo either. You would have to have some kind of electric pump, and reservoir to hold the oil, a filtering system, and a sump where you can pump it back up to the main tank. You would also have to consider the room in order to mount the turbo to the manifold itself. The turbo will have some weight to it and will have to mount solid to the engine with some kind of bracket. You also have to remember that all of this is in a very confined space. You wont be able to use the stock springs that attach your pipe to your exhaust manifold. Having a turbo on increases back pressure on the exhaust system before the turbo and you will have a huge exhaust leak.

I would love to see you do it, but like the others have said, if your asking trivial questions about how much boost this engine will hold, I think its just a pipe dream.

Best of luck to you and if you have any questions about getting started I should be able to answer most of them for you.
 
#15 ·
PolarisPredatorTLD500 said:
First off, I think we are being a little to hard of him since he is only asking some questions. Though in my opinion, its not worth adding the turbo. I'm not really convinced that putting a built triple into a iqr is the best answer either, but that is just my view and its totally up to you. I just saw a iqr with I believe a 910 straightline mod motor ($4000)in it and that seemed wicked but you might be able to make more hp for your buck building the triple.

Thank you. like i said right away.. i am tossing around the idea of adding turbo. all i wanted was some information on it. not hate. thats the one thing i dislike about sf is everyone tries to find somthing bad with your post or idea and they just dig in on it.



PolarisPredatorTLD500 said:
First off, I think we are being a little to hard of him since he is only asking some questions. Though in my opinion, its not worth adding the turbo. I'm not really convinced that putting a built triple into a iqr is the best answer either, but that is just my view and its totally up to you. I just saw a iqr with I believe a 910 straightline mod motor ($4000)in it and that seemed wicked but you might be able to make more hp for your buck building the triple.

Thank you. like i said right away.. i am tossing around the idea of adding turbo. all i wanted was some information on it. not hate. thats the one thing i dislike about sf is everyone tries to find somthing bad with your post or idea and they just dig in on it.

any idea what would be a good turbo to use boostinhard?
 
#16 ·
boostinhard said:
Not one of you considered the oiling system for the turbo either. You would have to have some kind of electric pump, and reservoir to hold the oil, a filtering system, and a sump where you can pump it back up to the main tank. You would also have to consider the room in order to mount the turbo to the manifold itself. The turbo will have some weight to it and will have to mount solid to the engine with some kind of bracket. You also have to remember that all of this is in a very confined space. You wont be able to use the stock springs that attach your pipe to your exhaust manifold. Having a turbo on increases back pressure on the exhaust system before the turbo and you will have a huge exhaust leak.

I would love to see you do it, but like the others have said, if your asking trivial questions about how much boost this engine will hold, I think its just a pipe dream.

Best of luck to you and if you have any questions about getting started I should be able to answer most of them for you.
Thank You, boostin for pointing that out. Not trying to dog on you at all, just saying.
+1
 
#17 ·
Oh, you guys are all supposing.. Supposing it costs a certain value, supposing it needs certain parts, etc, etc.

Take a look at the facts, the old tests from dynotech (dynotech.com, requires a subscription but it's worth every penny), and you'll find that the ultra motor is not a good candidate for adding a turbo. The amount of effort and expense netted very little usable result, and the project was scrapped.

And, not from the same site, but the RXL version of the 650 and the Storm 800 both respond very well to turbo's. The RXL's can be pushed over 200 hp and will run for thousands of miles that way, and the storms can be pushed even farther.
 
#18 ·
sTOrMy96 said:
PolarisPredatorTLD500 said:
First off, I think we are being a little to hard of him since he is only asking some questions. Though in my opinion, its not worth adding the turbo. I'm not really convinced that putting a built triple into a iqr is the best answer either, but that is just my view and its totally up to you. I just saw a iqr with I believe a 910 straightline mod motor ($4000)in it and that seemed wicked but you might be able to make more hp for your buck building the triple.

Thank you. like i said right away.. i am tossing around the idea of adding turbo. all i wanted was some information on it. not hate. thats the one thing i dislike about sf is everyone tries to find somthing bad with your post or idea and they just dig in on it.



PolarisPredatorTLD500 said:
First off, I think we are being a little to hard of him since he is only asking some questions. Though in my opinion, its not worth adding the turbo. I'm not really convinced that putting a built triple into a iqr is the best answer either, but that is just my view and its totally up to you. I just saw a iqr with I believe a 910 straightline mod motor ($4000)in it and that seemed wicked but you might be able to make more hp for your buck building the triple.

Thank you. like i said right away.. i am tossing around the idea of adding turbo. all i wanted was some information on it. not hate. thats the one thing i dislike about sf is everyone tries to find somthing bad with your post or idea and they just dig in on it.

any idea what would be a good turbo to use boostinhard?
I would start with a t-25 off of a stock Mitsubishi eclipse from 95-99. Its a small turbo and very compact and can be had for next to nothing. Just make sure you inspect it before you buy it. Lateral shaft play and also in and out shaft play. Make sure that the turbine housing isn't cracked that bad.
 
#19 ·
Stormy Stormy Stormy: WTF!! Are we going to ride or wrench??? The last thing I want to think about is having to drag your A$$ over to Moc Point with a box of parts that we will be picking up off of Vermillion. How about we just go ride and you can buy the first 10 rounds at Benchwarmers with the money that you'll be saving. [thumb][thumb]
 
#21 ·
ultrawillie said:
Stormy Stormy Stormy: WTF!! Are we going to ride or wrench??? The last thing I want to think about is having to drag your A$$ over to Moc Point with a box of parts that we will be picking up off of Vermillion. How about we just go ride and you can buy the first 10 rounds at Benchwarmers with the money that you'll be saving. [thumb][thumb]
haha this is going to be in my ditch sled haha i just picked up a zr 800 that i will be riding for trails and lakes. what this topic is about is the sled that i am going to start building next summer or possiably this winter if my new job falls through. and why would i buy your a$$ a drink?! haha just playin

nytroXTXcircus said:
turboing is safe in the pressures you are talking about (6 to 8) but the issue in your case will be the 20k rpm....
if you read tha topic it was a typo. 10k is goal

Ugly_old_Poo_kid said:
Oh, you guys are all supposing.. Supposing it costs a certain value, supposing it needs certain parts, etc, etc.

Take a look at the facts, the old tests from dynotech (dynotech.com, requires a subscription but it's worth every penny), and you'll find that the ultra motor is not a good candidate for adding a turbo. The amount of effort and expense netted very little usable result, and the project was scrapped.

And, not from the same site, but the RXL version of the 650 and the Storm 800 both respond very well to turbo's. The RXL's can be pushed over 200 hp and will run for thousands of miles that way, and the storms can be pushed even farther.
do they have any info ao turboing a xcr 800. like i said above, ultra bottom end with a xcr 800 top end. so it wont be the ultra motor.
 
#22 ·
sTOrMy96 said:
do they have any info ao turboing a xcr 800. like i said above, ultra bottom end with a xcr 800 top end. so it wont be the ultra motor.
The XCR8's had a substantially better result than the 680's.

Dynotech doesn't have the test results for it, but contact Phil Walker (he goes by PatrioticInnovations on HCS), he's turbo'd damn near everything polaris triple.

He actually helped get me started on the EFI thing by selling me an old RXL EFI setup that he had sitting on the shelf, which he had pulled off an RXL to put a turbo on. I then installed it on FrankenStorm which you're heard about already. (If you refer to me when you contact him, I go by damm315er there)
 
#23 ·
I was hanging out with Phil walker at the swap meet today here in Mi,if there is one that can set you straight on what you thinking about trying to do it will be "TURBO" Phil,to talk to him you will have to go over onto HCS,he does not participate on this forum,I hate to say I told you so,but it's gonna take a lot more than you think to do it right.
 
#24 ·
sTOrMy96 said:
haha this is going to be in my ditch sled haha i just picked up a zr 800 that i will be riding for trails and lakes. what this topic is about is the sled that i am going to start building next summer or possiably this winter if my new job falls through. and why would i buy your a$$ a drink?! haha just playin
Uh, I hate to be the bearer of bad news, but a triple/triple with a turbo will be a horrible ditch banger!!! It would be much better used on trails and lakes, and use a twin with a single pipe and maybe nitrous for ditch banging.
 
#25 ·
Ugly_old_Poo_kid said:
sTOrMy96 said:
haha this is going to be in my ditch sled haha i just picked up a zr 800 that i will be riding for trails and lakes. what this topic is about is the sled that i am going to start building next summer or possiably this winter if my new job falls through. and why would i buy your a$$ a drink?! haha just playin
Uh, I hate to be the bearer of bad news, but a triple/triple with a turbo will be a horrible ditch banger!!! It would be much better used on trails and lakes, and use a twin with a single pipe and maybe nitrous for ditch banging.
im not so sure on the turbo part being good for the ditch, but i have always loved triples in the ditch. tons of pawer to be had for climbing hills and banks. thus put a triple in a sled built more for being abused in bumps and jumps.
 
#26 ·
I say you try it and learn on your own, turbos are very fun once you understand them.And to put that motor in an iqr would be a disgrace, if you want a ditchbanger with power do a 700 twin in an iqr