SWAP or NOT! - Yamaha Rhino Forums - Yamaha UTV Forum
Yamaha Rhino Engine Swap Discussions Yamaha Rhino engine swap discussions.
Rotax swap, R1 swap, etc.

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post #1 of 13 (permalink) Old 06-09-2009, 11:18 AM Thread Starter
 
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SWAP or NOT!

I'm new to this forum stuff and wanted to know what is up with this swap a motor deal? I posted a question on another forum why swap instead of building the 660 motor and only 2 people responded. If so many people are doing it WHY? I have a 660 and since all my riding partners have went to stroker motors (weller 720 & 760) this summer I'm getting ready to make an upgrade. These guys Rhinos are very fast now and none of them have had any problems. I'm tired of being last and eating everyone's dust. I'm tired of going around huge hill climbs because my heavy slow 660 will not make it. Is the rotax swap the answer to being in the front of my pack?
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post #2 of 13 (permalink) Old 06-09-2009, 11:32 AM
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yes onthe rotax. the motor is a great build from the factory and and has a ton of power left on the table. they are on the $$ side, but once you ride in one its over. hard part is trying to find a motor without buying the whole dam quad.
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post #3 of 13 (permalink) Old 06-09-2009, 12:08 PM
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Originally Posted by sandjunky View Post
yes onthe rotax. the motor is a great build from the factory and and has a ton of power left on the table. they are on the $$ side, but once you ride in one its over. hard part is trying to find a motor without buying the whole dam quad.

X2, but I will disagree on the motor purchase only thinking - you need and can use so many other parts to expedite and is necessitated for the build - heres approx HP #s I've seen commonly used for comparisons - 660=23 rear wheel horsepower vs. 800=52 rwhp, both in stock form. Bottom line, the full-tilt pro-built Rhino engines may (possibly) be able to pull a bit on a stock Canam 800, but the 800 has soooooooooooo much power left on the table as sandjunky mentioned. How would a turboed alky Rotax pushing 220 HP push our Rhinos? Priceless.....LBR
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post #4 of 13 (permalink) Old 06-09-2009, 12:17 PM
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lbr, do you know places that sell used rotax motors? i ahve been looking for one for some time with no luck.
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post #5 of 13 (permalink) Old 06-09-2009, 12:18 PM
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i say used cause they jugs would come off right away and be rebuilt. so buying new just does not make $$ to me.
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post #6 of 13 (permalink) Old 06-09-2009, 01:14 PM Thread Starter
 
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Rotax Power

I recently pull a technical article on Rotax 800 HO motor. This motor is very impressive from an engineering perspectiveBRP-Rotax. The question is when building big HP on this motor the crank and piston design comes into question. All stock motors typically have this problem that's why all the top engine builders replaces the crank, use stronger pistons, strength the cases. Where are the engine builders for this motor? The stock 800 motor will not outperform a 720 or bigger built 660 motor (this I have heard from other forums and racers). If I'm going to do a motor swap I want to be able to outperform built 720 - 800 Rhino guys in my group. I actually have a neighbor who has a Can Am Outlander that he wrecked, now I would like to see if I can get it built with a larger stroke, big pistons, etc...

I know from racing watercraft the the 951 rotax motor built by Seadoo did not like to be big bored or stroked. I wonder if this will be a problem with the 4 stroke version of this motor?
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post #7 of 13 (permalink) Old 06-09-2009, 01:20 PM Thread Starter
 
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drags

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X2, but I will disagree on the motor purchase only thinking - you need and can use so many other parts to expedite and is necessitated for the build - heres approx HP #s I've seen commonly used for comparisons - 660=23 rear wheel horsepower vs. 800=52 rwhp, both in stock form. Bottom line, the full-tilt pro-built Rhino engines may (possibly) be able to pull a bit on a stock Canam 800, but the 800 has soooooooooooo much power left on the table as sandjunky mentioned. How would a turboed alky Rotax pushing 220 HP push our Rhinos? Priceless.....LBR
A 720 spanked (4 car lengths in a short distance) a Rotax Rhino at the pismo drags and only lost to a 840 Teryx and 760 Rhino. I think a built Rotax is the way to go, but where do you find someone who really knows how to build fast reliable rotax power?
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post #8 of 13 (permalink) Old 06-09-2009, 01:29 PM
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I think a guy back east. He built a 1004 Turbo Rotax for Controled Force. I'm sure someone will chime in real soon.
I heard also that he has an 1100 or some crazy shit now too.
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post #9 of 13 (permalink) Old 06-09-2009, 01:36 PM Thread Starter
 
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turbo

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I think a guy back east. He built a 1004 Turbo Rotax for Controled Force. I'm sure someone will chime in real soon.
I heard also that he has an 1100 or some crazy shit now too.
anyone know where and how to find this guy? This sounds like the ticket minus the turbo, I ride in slow mountain terrain sometime and just don't need the heat and reliability issues with a turbo. This motor has so much potential (like the 750 Kaw twin) that aspirated big bore stroker should be enough for me.
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post #10 of 13 (permalink) Old 06-09-2009, 02:13 PM
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mrrhp i think is his name. check utube for 1004 rotax and he will have a few vids of his stuff and then you can find his web page.
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