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Too much conflicting information, about technical information as well as dates. If you are going to lie, at least make sure your sales reps are telling the same lie...

No clue, but the dyno room in that video is the same dyno room that has been used for the last 10+ years.

I don't know. And please don't call or e-mail MCX about the stock engine horsepower. They have no reason to tell you and they will not tell you as they have an agreement with Yamaha to not release any numbers from the stock engine and especially not from a stock prototype engine. Same thing if...

Development of the turbo kit has started...first step is to dyno the stock engine... http://m.youtube.com/watch?v=7ltAZUCEqfo

I am a mechanical engineer and I was thinking about the same thing first time I did see it. The basic idea behind a "triangulated" construction (like the original pyramid frame) is to connect mounting points with straight bars. The straight bars will then be loaded only in compression or...

My personal priority list would be: 1) Tether and roll over valve (safety first...) 2) Steering relocator (low cost compared to some items below...) 3) Challenger Extreme track 4) Skinz or other "move forward and relax caster" front end 5) Running boards that will not collect snow 6)...

Yamaha should come clean about this and release some kind of official information - what are the EXACT differences compared to the Arctic Cat. If they are trying to tell us the exact specification is not yet decided, they are lying. Production starts in couple of weeks which means suppliers of...

Exactly. Claiming that horsepower can only be found in straight exhausts is non-educated speculations based in 1960's tuning. A smooth, big radius bend is no flow restriction at all. You can read loads of books about it and you can download freewares that will tell you through calculations. Or...

I certainly do not agree with that statement. Look at the streetbike market, for instance. Some of the best handling and best performing streetbikes are also the ones with the best fit and finish. There is no reason for the snowmobile market to have to be the complete opposite. This thread...

A smooth bend with the relatively big pipe diameter and bend radius visible in the pictures does not necessarily rob horsepower. Then I would be much more worried about the silencer. Any silencer designed to meet current noise rules is much more of a flow restriction than a smooth bend.

The SR Viper will have the front mounted radiator and a tunnel heat exchanger in front of the drive axle only. There will be no other heat exchanger in the tunnel. The heat exchanger that sits at the back of the tunnel in the current Arctic Cats will not be used in the Yamaha and also not in the...

Are you far off Finland...? Sweden, Finland and Norway will get the SR Viper, though, only the XTX SE.

I don't understand why they paint them at all. Additional weight, additional production steps, additional cost. And what is the gain...? If a clear, non-painted tunnel was an option, this would be my first pick (this will not be the case over here). I have seen the swedish demo sleds and the...

Hi-jacking threads or not, I think these guys are fully allowed to express how they feel about the SR Viper. It is obvious that a lot of people are worried about fit, finish and general build quality. If you want to deny what they are posting, instead of telling them to shut up, why not just...

They are the same sled. Since you are going the route with aftermarket front end as well as aftermarket skid, it does not matter if you start from the RTX. It does have a wider front end with sway bar, but you will replace this anyway. It does have more forward drop brackets, but you will use...

Sounds like your belt tension is little bit on the high side, thus putting forward drive torque on your chaincase gears even when you are standing still. You can reduce your belt tension by installing the next thinner washer behind the three screws on the back side of your secondary clutch. Or...

If you are interested in the Timbersled skid, you do know they are offering a 25% discount right now...? www.timbersled.com Swedes can get the same deal through NTC. www.modshop.se

I would say most of us using the Skinz front end have found absolutely no reason to swap it for something else...

Maybe the guys that snowchecked the SR Viper want to keep the green one...? :hide:

Pressure washing is for trucks and tractors. I would never use a pressure washer near any of my sleds or sportsbikes. All of them have seals that are for sure not made to withstand pressure washing.