CPR Turbo Attak, Go or blow!

kviper

kviper

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Snowmobile
2012 MCX Turbo Apex
I bought a stage two CPR Turbo Attak, I plan to go back to the stage one and run it at 8lb (motor is stock). I have talked to several people about the dependability of a turbo at this level and get any where from it will blow to you will have no problem's with premium fuel as long as i use my head and do not hold WOT for mile's or do a lot of back to back long hard pull's. So who has a trail setup at 8lb and how many mile's on it with Turbo? Also how do you ride it, Are they only good for short blast's. Some make me think i made a bad decision. Thought's please. Thanks!
 
You shouldn't have a problem like you said limiting the runs to 1/4 mile or so but I'd back it down to 7lbs, on 93 pump gas.
That being said, you know theirs always a IF when we talk pump gas, are you always going to get 93??? All bets off on 87!!!!!!!!!!! :flag:
 
Shim it and be safe. Motor rebuilds are costly and take valuable ride time away Shim with cam timing works..
 
8 lbs with premium pump fuel on the CPR kit is safe. I ran 12 lbs with 3 stock head gaskets and It was a little insane for a trail sled. Great for lake racing, but a tick to much for the trail. 7-8 lbs on the stock engine would be a nice setup. Even that is pushing the track design beyond its limits. The one time I blew a track out was on a 210 HP sled, I don't want to re-live that again. The 270 HP was unreal but every time I got up there in speed the previous track explosion crept into my head. Just make sure you are filling with 92 octane and it will be fine for trail and lake running up to a mile or a mile and a half. The track will be building more heat than the intercooler at that distance anyhow. Have fun but be careful.
 
Haven't seen you in here for a while Mike. I talked to you last spring about Turbo sled's. I know you have run the Ice ripper XT, What is your thought's for a Turbo Attak and the Ice ripper, Thinking of going this route. When you blew the track was it on snow or ice? I lost one on my V-Max4 on ice once over 100mph, Change of shorts required!!! Thanks, Kevin
 
ice ripper xt

Kevin i just lengthing my 07 gt this summer to a 136 with a ice ripper xt with skidoo drivers as per what mike did last year, hoping for great results . sick of studs allso. Cant wait for the winter Jeff
 
Sounds good turbine, I am hoping it will be a good set up. I have the extrovert's also.
 
kviper, I'm not sure the single ply track would hold up to the speeds. Maybe it wouldn't build as much heat. I know I don't ever want to blow another one! I spit it out on a lake with snow (the trail) after just a short blast to 135. It was the std ripsaw. After installing another unstudded ripsaw, I took it to 150 without an incident. I'd give it a go, but approach the bigger speeds gradually and with caution. I doubt it's been done yet with a single ply track. I like the iceripper XT on the stock Attak for trail use!
 
The prestudded tracks are like almost having no studs with boosted yammies. They wont hold very good as for top end me and a buddy pounded on each other back to back 135mph runs 8times in a row before my ice ripper started to spit black chunks all over the shinny bare ice I was running a 128 sin gle ply with a bounch of studs down the middle. It was as tough as any track I have run so far. But I did have to stud for the 16lbs I was running
 
I would say it did well with that many back to back run's, As Mike said earlier they build a lot of heat at that speed and for that length of time. I don't like that many stud's in the center belt only. When you put that many stud's in only the center belt you cut much of the cord structure and then with the added weight the center belt stretches much more than the outer belt's. I think that is why so many are having clip problem's with the ripsaw's. The center belt starts to whip at higher speed's and opens up the clip's. Mine on my 06 GT was just pounding like heck between the drive shaft and ground and against the curve of the slide rail's at 80 plus mph and after a few mile's a bunch of clip's that were just installed were loose and some were gone. I put in a predrilled full clipped Ripsaw and have not put another clip in since. Do they make a predrilled 136 Ripsaw? I didn't know the Ice ripper was a single ply, Maybe it would hold up to speed better?
 
One more thing, Camoplast said that hard surface's (bare ice) with these deeper lug track's at high speed's is not good. They say they build a resonance and self destruct. kviper
 
Correct, the iceripper is made for the trail with enough studs to stay in control in the icy corners. It will not be a drag track to run the roads or lake and beat the guy next to you on a boosted sled. If your running the groomed trails like I run in MI, or MN you don't need anything more. The iceripper XT is a single ply sharp stud 2.86 pitch, 137" long track made for the Ski-Doo XP. Not to be confused with the std. two ply non sharpened 2.52" pitch, 136" long original iceripper. I won't stud again after running the iceripper XT. Much less of a chance blowing a track without 12 pounds of studs cutting the cords and the extra rotating weight. 5 MPH or better top speed. No chance of putting a stud thru the heat exchanger. No blown rubber on your wheels. Better hyfax life not having to run the track fiddle string tight to resist ballooning, and no vibration. These are the nice things I have found going to the Iceripper XT over a studded track for the trail. Now if you have to be the quickest at the lake then this track is just not going to cut it. No choice then to go to studs if that is the case.
 
To bad this ice ripper doesn't come in a 144 track, I could use it on my Supercharged sled. Someday maybe.
 
KnappAttack said:
Correct, the iceripper is made for the trail with enough studs to stay in control in the icy corners. It will not be a drag track to run the roads or lake and beat the guy next to you on a boosted sled. If your running the groomed trails like I run in MI, or MN you don't need anything more. The iceripper XT is a single ply sharp stud 2.86 pitch, 137" long track made for the Ski-Doo XP. Not to be confused with the std. two ply non sharpened 2.52" pitch, 136" long original iceripper. I won't stud again after running the iceripper XT. Much less of a chance blowing a track without 12 pounds of studs cutting the cords and the extra rotating weight. 5 MPH or better top speed. No chance of putting a stud thru the heat exchanger. No blown rubber on your wheels. Better hyfax life not having to run the track fiddle string tight to resist ballooning, and no vibration. These are the nice things I have found going to the Iceripper XT over a studded track for the trail. Now if you have to be the quickest at the lake then this track is just not going to cut it. No choice then to go to studs if that is the case.
Click to expand...
So are you saying the XT can not or should not be studded with conventional stud's? My opinion on stud's and hard packed snow is that the track is going to have to get it done because that thin stud in snow can't do much. kviper
 
I was really hoping the XT would be the answer for trail and hard pack lake racing. I think cutting hole's in the track's of sled's with this kind of power that run the speed's they do is not a good combo.Track tec need's to take another step to keep up with the HP of these sled's. kviper
 
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