Wolverine Model Series

Japanese auto manufacturers have been using stuff like B-Spec and R-Spec for years. I think it started with Skyline (although I could be wrong about that) but I know that Subaru and Nissan have been using those labels for many years now...of course Nissan owns Skyline now, hence the Nissan GT-R. I believe there is even a GT-R R-Spec version. I know Subaru has Legacy Spec-B and Spec-B or C versions of its Impreza STI...some of those are not available in North America.

The whole B-Spec and R-Spec have traditionally been used to signify a higher performance and special version of the model. It really sounds like Yamaha marketing wants to change people's perception of what a Yamaha SxS is, based purely on labeling for now...if they are following traditional Japanese Spec labels.

I wonder if Rotax your rhino will build a conversion mouth for these???

I was thinking the same. Why the "R" Good stuff Timmi

There will be an aftermarket for them, no doubt.

How much HP do you think this motor could make?

75 hp would be nice

ITP just announced an R-Spec tire...

I think this engine could make 75 hp with some mods.

I can't wait to see what mods they come up with.

cam, bbk, head work, exhaust, programmer...

Timmi said:

cam, bbk, head work, exhaust, programmer...

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You forgot the Hotrod Sheave.

Timmi said:

ITP just announced an R-Spec tire...

I think this engine could make 75 hp with some mods.

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Yes, as a 708 cc it can easily make 85+ hp. My old Rhino 660 was making 70-75 hp over 7 years ago.

wow, I was way off! thanks for the info!

Vital said:

Yes, as a 708 cc it can easily make 85+ hp. My old Rhino 660 was making 70-75 hp over 7 years ago.

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I heard that the "R" was in reference to the reservoir shocks. I didn't hear that from Yamaha, so it's just speculation, but it makes sense.

I expect near 60 hp and very reliable. 85 hp will require a larger radiator, big bore, high compression, race gas, hot cam, race exhaust system, larger throttle body, etc. With all the 1,000 UTV's you won't see many hopped up wolverine's. Polaris should have a turbo or just more hp to complete with the Can-am turbo. Honda and Yamaha both should have a high hp model in a year or two.

It's possibly a Recreational classification. There is speculation that there will be a Spec-S version for sport use. The Japanese have used the Spec designation for years to denote a particular model.

RayZeR said:

I heard that the "R" was in reference to the reservoir shocks. I didn't hear that from Yamaha, so it's just speculation, but it makes sense.

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This is from atv.com

Yamaha denotes this Wolverine as its R-Spec rig and there is a reason for this. This is in reference to its long travel, fully adjustable shock package and suspension geometry that allows users set it up to their liking.