Considering Somewhat of a CHR Build...

[goridedoo]

So about a week ago I picked up a 2011 M8 153" Standard with 1800 miles. I planned on keeping it as a back up sled for my 2011 800 Etec 154 and then selling it part way through the season, but after riding it for a day I really began to like the M chassis and I feel like its got alot of potential. Stock for stock- the 2011 Skidoo is the better all around sled. But there aren't many modifications to made, nor is there much weight to be lost on the XP and after seeing Snowests CHR build I have been thinking it would be smart to get rid of the Doo and mod the M8 much like the CHR was. So starting off... Goal #1- Get the sled under 400lbs dry, Goal #2- Be at or super close to 180HP. The M8 doesn't climb like the Doo. I plan on a Timbersled Skid to both lighten up(bout 15lbs) and help the sled get on top of the snow, haven't decided on shocks yet(watching the raptors closely), and a 2.5" track would also help climbing. I'm also thinking light weight front end- a-arms etc.... what do people like and what can I see for weight loss? 10lbs tops? I want to make it handle like a doo on the trail, and I think that will be fixed by better shocks all the way around. Now for weight loss. BDX intake -8lbs. BDX power valve mod -4lbs. C3 carbon fiber hood -13lbs. Can/Exhaust system -15-20lbs. Other things pulled out and holes drilled here and there -5lbs. After adding some extra weight from the bigger paddled track it looks like I would be anywhere from 60-70lbs weight loss, which should put me in ballpark 400. What all can I do for power? I'm thinking pipe, y pipe, can, and clutching which would be what roughly 10-15hp. What works well for exhaust systems and will I need a fuel controller? Please give me some input on my ideas and what you think. Advise is great!

 

[smp747]

Im just curious of your reason not to turbo the sled?. I loved the snowest build as well but I think I'd still chose to turbo it over weight loss.

 

[ACMtnCat]

You'll have to do more than that to get it down around 400 pounds. I have all that and more and still weigh in at 420#. The Turbo made the sled feel right. No need for anymore light weight stuff, just turn the boost up and the weight becomes a non-issue.

4 things that made the most difference in the feel of my sled.

#1. light weight hood-skinz mesh
#2. light weight track-power claw
#3. tuned light weight suspension
#4. Turbo!

 

[backcountryislife]

I'd skip all that crap & just do a push G series turbo.


More power than you'll need, it'll make the doo feel like a paperweight, and when you've got that much power, you won't care about the weight anymore. I was a SERIOUS weight weenie... then I got a turbo & didn't waste another dollar on weight loss.

They're more reliable than you'd think, and at $4400 or so, installed & tuned, it's cheaper (by a TON) than the mods you mentioned.


btw... the carbon fiber hood would be the last thing I'd spend money on. HUGE money, and less result than you'd think. If the REAL numbers (empty stock hood to empty carbon hood) were what they mentioned, nobody would ever spend the $$.

btw, this is coming from a guy who's last sled was a 395-415 lb M1000(less is you beleived the claims of the aftermarket companies, but I weigh my mods) so I'm pretty darn geeky about weight loss.

 

[goridedoo]

Turbo has been running through my mind... I kind of just want to go back to the basics and have a light weight sled that is an ideal tree banger and even easier to throw around than the M already is. My three reasons for not wanting a turbo- 1. I want a pull and go sled 2. I am not real mechanically inclined and have zero turbo experience 3. I rode Kalebs sled and for me at the riding level I am at right now, it was to much power... or possibly to short of track for that much power, that being said it was absolutely nuts, and I had a blast on it, who knows it would probably make me a better rider. If I were to do a turbo I would do pump gas... whats opinions on whats good reliable for lower boost turbo (push?), and how hard is it to learn to tune them and all that good stuff? I ride everything from 1000'-13000'. Either way I think I am gonna go aftermarket on the rear skid for sure, and if do a turbo I would wanna go 2.5" track. My original plan was to step up my riding and wait for turbo for 2013 and do a Pro RMK build... but heck I might as well start now.
Edit: I see you recommended the Push G series Kaleb, any one have any experience with them. Also maybe a CPC stage 1?

Also beings the sled has 1800 miles... would new pistons/rings be a good idea?

 

[backcountryislife]

My sled is too much power for that track, it's also the setup I've got... like I said, I like riding the back 3" of track, it's just fun. It was pretty funny watching you ride the tail up over that chute on the first pull though, I think you're pulling your own leg saying you don't have the skill for that kind of power.

Either way, you don't need that much boost, that was 12 (with the 141), you would likely be really stoked with 9 (on a 153) which is much more practical (you'll want more eventually!!).


I recommend the G because now that I've heard a chunk of people who have said that they're not doing much tuning on them, and had good reliability, it's the best bang for the buck. The cpc stage 1 works well too, but the little bit more for the stage II is hard to miss out on ($4425 for just the turbo kit without clutching or cold air intake) and gives you the ability to run pump, but then turn it up quite a ways when you come out here.

I think with a 8-9 lb sled you'll never talk about weight loss again. I thought I'd care more about it with how much I jump, but the amount that you can move the sled in the air with the throttle on my sled made me not care about that either.

 

[backcountryislife]

oh, and bro...

It's HCR... not CHR... come on, spell check doesn't have that one in the library???

 

[907to406]

oh, and bro...

It's HCR... not CHR... come on, spell check doesn't have that one in the library???

Haha yeah I was so confused as to what an CHR was? I thought he meant HCR...

 

[goridedoo]

Not a typo! Haha Snowest had their own "CHR" build in their last mod-stock issue. Canyons Hillsides and Ridges, not Hill Climb Racer.

 

[Ski-Laxn]

C (creeks) h (hills) r (ridges) is what it stood for.

 

[backcountryislife]

Bah... they just made a typo, and had to come up with something quick!!!

Ok, at least you weren't just typing confused all the sudden!!

 

[goridedoo]

Kaleb, either way, you letting me ride your sled is going to cost me thousands of dollars in the long run... and I don't know whether to thank you for that or not.

I clearly like the sled Chuck! Thanks again.

 

[backcountryislife]

Yeah... we've all had that REALLY expensive sled ride!!!

I had a SOLID running M8... then I rode MPM's mod 1000 (a sled that I've seen stomp on many turbos), I never quite recovered from that ride... it has cost me many tens of thousands since then!!!!!!