I've gone to DefCon 5 on my Cat 1100T driveline!

0neoldfart · May 10, 2013

You need to reread my post...

Snowmow said:
Oldfart:
How do you explain my sled then? It has the BC275 on it. The 700 miles on it Havnt been easy. Deep powder hill climbs and mountain riding. And still on original belt. I'm not saying that Cat doesn't have a problem. But for you to say that ALL the 1100T's are junk untill upgraded is to much of a blanket statement.
Obviously there is something everyone is missing. Especilly the guys that are buying thousands of dollars on belt drives and snubber kits and still blowing belts. My clutches work good not great, there is room for improvement not for belt life but for shift. There is alot of bold posts on here that just state these sleds are darn near unrideable in the mountains, especially with a evo kit added.
Untill a belt drive and jack shaft and clutches and snubber kits. The list goes on and on. And yet I'm seeing better belt life out of a stock setup and running big HP then the guys spending over $4000 just to resolve the belt life issue alone. Something doesn't make sense and someone is missing the mark on what the REAL problem is.

The real problem is consistency - no two sleds are built exactly alike - just as belts have a "tolerance". I've never blown a belt on my M1100T yet, either, but I've not going to give it a chance to. If you haven't pulled your chaincase apart for inspection, I recommend that you do before next season. You are fortunate that you haven't blown a belt yet, and if you've read any of my previous posts, you'd find that I do like the M1100T, and the potential that it has.

Snowmow · May 10, 2013

Just because. I'm going to get evo's jack shaft reinforcement (whenever it's available) and the hyvo chain and gears along with a manual tensioner. I havnt had the tank split but Would like a good coolant tank replacement but don't think that's going to happen. Wish I knew exactly what I needed to have a durable sled. Granted mine has been so far. I'm just all worried after reading all the bad things that have happend to others. I don't want to throw money at this sled for no reason. Just a thought..... The pro climbs have a very modular chassis. You can darn near replace every piece of it Without having to do a complete bulk head, like the m series. I wonder if because of all these individual pieces making up the bulk head, motor mounts etc... That some sleds have alot of problems and some none. Just seems that with all of those parts. The sled would go together a little different every time.

Snowmow · May 10, 2013

Posted at the same time Oldfart! Looks like we have simaler thoughts.

Greg B. · May 10, 2013

Read this. IMO this is the smoking gun to these sleds. This would explain why some sleds eat belts like candy and others do not. until you get everything square those sleds are never going to keep a belt on them. This is probably the reason cat cant get them fixed easily as it will take more skill to get everything aligned than the average Joe tech can handle. The cheap parts issue is easy to fix, however I feel that is not the root of the issue, only masking it.

http://www.hardcoresledder.com/foru...rocross-sleds-having-belt-blowing-issues.html

Snowmow · May 10, 2013

That is exactly what I'm Talking about. I have the front end of my sled torn down due to hitting a tree. And I can see how easy it would be to see alot of inconsistancy in the assembly. With the way every piece is replaceable, made the possibility for things being miss aligned very easy.

Greg B. · May 10, 2013

Snowmow said:
That is exactly what I'm Talking about. I have the front end of my sled torn down due to hitting a tree. And I can see how easy it would be to see alot of inconsistancy in the assembly. With the way every piece is replaceable, made the possibility for things being miss aligned very easy.

yep IMO i see them dropping this chassis soon. its way to complicated. It will be interesting to see if your sled will be fine after you put it back together the way it should have been. Also keep an eye on your front suspension mounts. My friend has cracked 2 tunnels there. He only trail rides and does not jump anything.

joe_f7 · May 11, 2013

You guys should check Cam's (turbie on HCS) stuff out. This guy rides alot and makes all his own stuff. Was such a big hit he started selling it. I like his stuff alot. He rode and tested all this past year with his parts on his boosted cat. This new motor brace he has coming out totally eliminates the TLC and is bad a**. It's not on his website yet. He is working with a major player to get the costs down for us.

http://turbieperformance.vpweb.ca/

http://www.hardcoresledder.com/foru...rmance/731801-new-tcl-turbie-performance.html

Turbo11T · May 11, 2013

joe_f7 said:
You guys should check Cam's (turbie on HCS) stuff out. This guy rides alot and makes all his own stuff. Was such a big hit he started selling it. I like his stuff alot. He rode and tested all this past year with his parts on his boosted cat. This new motor brace he has coming out totally eliminates the TLC and is bad a**. It's not on his wesite yet. He is working with a major player to get the costs down for us.

http://turbieperformance.vpweb.ca/

http://www.hardcoresledder.com/foru...rmance/731801-new-tcl-turbie-performance.html

I like it a lot. I would say it could be taken one step further. The turbine design with a Tcl incorporated in. I think the biggest flaw in the entire setup is the way. The engine is mounted and how the chassis is tied together around it.

Turbo11T · May 11, 2013

joe_f7 said:
You guys should check Cam's (turbie on HCS) stuff out. This guy rides alot and makes all his own stuff. Was such a big hit he started selling it. I like his stuff alot. He rode and tested all this past year with his parts on his boosted cat. This new motor brace he has coming out totally eliminates the TLC and is bad a**. It's not on his wesite yet. He is working with a major player to get the costs down for us.

http://turbieperformance.vpweb.ca/

http://www.hardcoresledder.com/foru...rmance/731801-new-tcl-turbie-performance.html

Dang it now I want to get the sled out of storage and start working on it again.

joe_f7 · May 11, 2013

You completely cut the bearing off the TCL and is back to old school style with the jackshaft being tied to the chassis. He also has mounts to eliminate the junk tabs on the front cooler to stregthen and eliminate the cracked welds alot have come across. Those are on the website.

http://turbieperformance.vpweb.ca/Available-Parts.html

joe_f7 · May 11, 2013

Turbo11T said:
I like it a lot. I would say it could be taken one step further. The turbine design with a Tcl incorporated in. I think the biggest flaw in the entire setup is the way. The engine is mounted and how the chassis is tied together around it.

What do you mean by "one step further"?

Turbo11T · May 11, 2013

Ok look at what yamaha did. Bottom line is that you need to attach engine and drivetrain in a cradle. Motor is sandwhiched into the cross members of the cast aluminum side plates. The motor becomes nearly 1 with these parts. The side plates are directly connected to the jack shaft on both sides. By doing this with the super stiff mounts that yamaha puts in the engines they have something special. I believe that the 1100 can be brought to this level as well. I have not been for losing the Tcl in the past but I think with the proper "side plates". It would not be needed. Dang it I think I need to find some large 3/4" 6061 or 2024 plates now. I foresee a project in my future.

What I am saying is I don't believe cat engineered the way the nytro motor is mounted into the viper. I think yamaha did and bottom line is yamah has a better reputation for mounting the 4 stroke motor solid to the drivetrain.

joe_f7 · May 11, 2013

I agree. Cam's stuff is a billet version of the yamaha cast design. He came out with it before the new sleds even came out. And the rear engine mounts he makes will really craddle the motor and stengthen everything.

Turbo11T · May 11, 2013

joe_f7 said:
I agree. Cam's stuff is a billet version of the yamaha cast design. He came out with it before the new sleds even came out. And the rear engine mounts he makes will really craddle the motor and stengthen everything.

I applaud turbie but I think he is missing the mark. The rear mounts mount to one spot and the front to another. With a light chassis you need common ground. You can't mount the back of the motor to one flex spot(tunnel cooler) and the front to another spot that can flex differently. I don't think his new mount pictured above quite encompasses that idea yet.

joe_f7 · May 11, 2013

I also said his rear mounts too. You didn't look at them off his website??????? I would combine the two.

joe_f7 · May 11, 2013

these are it. You actually cut off the tabs on the cooler. This is hydroformed steel and bolted to the tunnel underneath the gas tank making the two rear mounts now rigid

Turbo11T · May 11, 2013

joe_f7 said:
these are it. You actually cut off the tabs on the cooler. This is hydroformed steel and bolted to the tunnel underneath the gas tank making the two rear mounts now rigid

Yep saw those. . .. . So he is anchoring the engine to a piece of .080 aluminum. I saw these when he first designed them. They may be a great bandaid but are just that. In a little bit I will post a rough drawing of the best solution. IMHO. Coming from a guy who put a vector motor into a rev chassis.

joe_f7 · May 11, 2013

Cool. Can't wait to see. Will these be available to purchase? Who is the guy/business?

Turbo11T · May 11, 2013

Turbo11T · May 11, 2013

So obviously this is not an 11t. But you will see the same idea here. The first pic is just showing the nearly finished.

Second is the strong cradle mounted to the chassis.

In the third you can see the two long bolts that extend the width of tunnel and bulkhead. When engine is install it becomes the meat of the sandwhich. Also notice how the jack shaft is mounted through the side plate as well as the chain case and driveshaft.

The last pic shows the engine mounted in the side plates outside the frame just for a visual.

My point I am making is that here you have one solid side plate on each side sandwhichinG the engine and tying the engine to the drivetrain.

Compared to mounting the front of the engine to one part of the sled that can be twisting one direction while the tunnel is twisting another. If you sit on a 11t with the hood off and pull on the handlebars the pyramid twists and flexes. The designers at cat are depending upon the triangulationt to make this chassis strong just the same as doo and poo have. But if you do some research yamaha has not yet done this because bingo they know the chassis is twisting.

I sold the yamadoo before ever finishing it how I wanted to. I would prefer to extend the side plate back to the front arm of the rear skid.

I've gone to DefCon 5 on my Cat 1100T driveline!

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