I had a 99 Mach Z (800cc Triple-piped triple cylinder) that was piped, reeds, etc... And I blew 1000 Thundercats away on the lakes no problem. The engine makes power...but it seems not at the right places. Yea Cat claims 172 HP at the flywheel....But I doubt that is reality...or there is a problem in getting the power to the ground. A stock 99+ Mach Z did around 150-175 hp (Depending...) But with pipes and some mods.....180 HP was broken easily. That's from a stock bore 800 triple. I know of a turbo'd 980 Mach Z putting out in the high 200's, low 300's. [img]i/expressions/face-icon-small-blush.gif[/img].

Anyway, back to the point, the triples are history now, only Polaris still produces the XCR triples (which I don't like). Now the new big bore twins are taking over. And now rotax got rid of carbs on some models and produced the the SDI engines (Semi Direct Injection) and these engines show about the same peak HP and a little more torque than the carbed ones. And these SDI engines are as environment friendly as most 4-strokes.

The twins have replaced the gas guzzling triple piped monsters.....and while they are fast for twins...They do not match the ROAR and torque of the great Triples that were. As for as potential...Triples will rule.

Bomb should put a 600 HO Twin Rotax 2-stroke SDI into a quad. It would easily fit in the frame of a DS and you would have 110 HP out of the box. Wouldn't that be nice [img]i/expressions/face-icon-small-smile.gif[/img]. I guess i'll have to keep dreaming.

 

Polaris quit making the XCR triple also. I have a Mach Z and the Rotax 809 triple has got to be the best 2-stroke motor ever made. Silky smooth, gobs of power and easy to mod. And yes, a 150hp Mach is just as fast as a 172hp T-Cat. Must be the RAVE valves.[img]i/expressions/face-icon-small-happy.gif[/img]

If Bombi had been making 2-stroke automatics, I would have never got on a Polaris. But, I'm happy with all three Polaris quads I've had, and all five Ski-Doos, so I guess I'll just remain multi-branded.

And racerx5x5 is absolutly correct. There is no comparison between a box-stock 110hp sled motor and a nuclear warhead 100hp Shee. If you did the same mods to the 600 as were done to the Shee, you'd probably see 170hp or more.

2-strokes rule!

 

lol, tyre that would be pretty sweet, and if anyone had the ***** 2 do it would be bombardier IMO

 

The thundercat was slower because it was heavier. The 1000cc triple has the most potential though and being in a sand rail an extra 50 lbs means nothing. It may not be the most reliable motor on the market. A more modern 2-stroke motor would work better in the end, I agree. If you want straight all out power, being second to no one, then you will need displacment. I don't think Arctic Cat makes that sled anymore, not for a couple of years atleast. You also can't really compare new sleds to sleds of even 5 years ago, no contest. I'm not a sled guy by any means I just like them and deep powder snow.

 

There you are wrong. Hehe.

Compare the new twins to the old Rotax 809 (Mach Z) and the Mach will walk away from most twins easily. Except for maybe the Cat ZR 900...

And the mach z 800 started in 1998...but '98s were slow for some reasons.


And don't get me started on the RX-1.

 

There is always exceptions to the rule, but on average all the motors used 5 years ago not making the same power as todays motors. STOCK, once you get the aftermarket involved then old or new, it makes no difference.

 

The rotax 800 twin is a BOAT ANCHOR !! The cat 800's sucked anyway you sliced it !! The polaris 700 + 800 are very strong BUT the chassis are made for MIDGETS !! The rotax 780 and 809 tripples were very strong as were the 1000 cats BUT th cat chassis sucked bad.

 

The Mach Z 800 started in '97 in the F chassis. The '98 (first year of CK3 chassis) had different style pipes and clutch spacing which made a slightly different power curve and clutch tuning, but they are just as fast when set up proplerly.

Anyway you slice it, the sled motors have a lot more power than quad motors. My 400 liquid 2-stroke Polaris is 36-38hp and the 500 twin sled motor is in the 90s. Hell, my '77 340 Rotax was over 60hp. As much as I like my Polaris quads, Rotax is still the best small engine builder there is!

 

Umm...a 400 Sport makes more power than a Banshee?!?

Are those numbers at the wheels or crank?

 

77 340 makin 60? wat did you have it on alcohol or somethin? theres no way in hell that a those lil 340s made that kinda power, i had a 76 tnt 340 for the winter and