HW results from Fundy Std. Bore Kit - Kawasaki Teryx Forums: Kawasaki UTV Teryx Forum
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post #1 of 59 (permalink) Old 10-03-2009, 08:30 AM Thread Starter
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HW results from Fundy Std. Bore Kit

I am so reluctant to post these results and I really don't want a bunch of crap being said about it. We just installed it and we are just reporting what we got.

The vehicle is a 08 Teryx, stock carbs, our jet kit and TPI valves, Muzzy pipe, stock heads, dalton clutch kit and dalton od plate.

The kit is the Fundy standard bore kit with trail race cams and valve springs.

On our Dyno the Teryx started off at 27 HP which is on the low side compared to others. You get lots of results from different dynos around the country but this was ours.

After the kit and it all dialed it we got 52 hp which is a 93% gain which is very impressive. We normally get this percentage of gain on a Rhino with basically the same mods.

The dyno number is really irrelevant the real world performance is what counts.

We took this Teryx out and ran it against my modded race Rhino and to 60 mph the Teryx was about ten lengths ahead of the Rhino and my Rhino would be about three lengths ahead of a 09 Teryx with MSD and Muzzy pipe on it.

We got it to 71 mph on the road on a slight down grade and 68 on a flat.

I would love to install a 840 kit myself and set it up myself then dyno it myself to compare. This would be the only way anyone could convince me of anything. I expect less performance though and this is just a "opinion"

Performance aside I really just don't prefer a bore increase of any size, I really like standard bore performance kits for the price and reliability.



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post #2 of 59 (permalink) Old 10-03-2009, 10:57 AM
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GREAT JOB TODD! Now tell me a good price? alot of kits out to pick from.
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post #3 of 59 (permalink) Old 10-03-2009, 05:35 PM
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52 Hp sounds about right for what you did;since no one locks the cv clutch up,this is probably the reading you get

Last edited by poflo; 10-03-2009 at 05:40 PM.
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post #4 of 59 (permalink) Old 10-03-2009, 06:54 PM
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Quote:
Originally Posted by Hunterworks View Post
I am so reluctant to post these results and I really don't want a bunch of crap being said about it. We just installed it and we are just reporting what we got.

The vehicle is a 08 Teryx, stock carbs, our jet kit and TPI valves, Muzzy pipe, stock heads, dalton clutch kit and dalton od plate.

The kit is the Fundy standard bore kit with trail race cams and valve springs.

On our Dyno the Teryx started off at 27 HP which is on the low side compared to others. You get lots of results from different dynos around the country but this was ours.

After the kit and it all dialed it we got 52 hp which is a 93% gain which is very impressive. We normally get this percentage of gain on a Rhino with basically the same mods.

The dyno number is really irrelevant the real world performance is what counts.

We took this Teryx out and ran it against my modded race Rhino and to 60 mph the Teryx was about ten lengths ahead of the Rhino and my Rhino would be about three lengths ahead of a 09 Teryx with MSD and Muzzy pipe on it.

We got it to 71 mph on the road on a slight down grade and 68 on a flat.

I would love to install a 840 kit myself and set it up myself then dyno it myself to compare. This would be the only way anyone could convince me of anything. I expect less performance though and this is just a "opinion"

Performance aside I really just don't prefer a bore increase of any size, I really like standard bore performance kits for the price and reliability.

Thats average for any standard bore kawasaki v-twin... With an 840 you'd be closer to the 60's if not in and the torque out the hole would be much greater.

This your first time riding a built kawasaki v-twin? Fun huh?
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post #5 of 59 (permalink) Old 10-03-2009, 07:24 PM
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What tires did you use on the dyno?
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post #6 of 59 (permalink) Old 10-03-2009, 10:14 PM Thread Starter
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It was the first time on a built V-Twin and it was awesome. The customer needs to come get it before we take it over!!


Stock tires.

Price, don't have it yet.



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post #7 of 59 (permalink) Old 10-04-2009, 08:06 AM
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Nice job...
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post #8 of 59 (permalink) Old 10-04-2009, 08:33 PM
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Those numbers are just what they should be.They show just what I tell my customers,the std bore is 8 to 10rwhp less then my 840.
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post #9 of 59 (permalink) Old 10-05-2009, 09:14 AM
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Thank you Todd, for your time and effort doing the build, testing and posting.
To compair chassis dyno results. all you can look at is the percentage of gain, and even then has to be taken with a gran of salt.
Hunter works, with a bolt together std bore and all stk intake other then a couple TPI valves went from 27RWHP to 52RWHP or a 93% gain.
At the engine, the stk Teryx makes 45HP and with that kit setup the way they are makes 90-93HP which is a 100-106% gain. If they had clutched it for the dyno, they probably would have seen the 100-106% gain but then they would have to reclutch for the field to get the best performance in the rear world.

Now I'm going to use some of Dasa's numbers, because they have so much time in testing 840's. (hope you don't mind Dasa)
Thier dyno shows 36RWHP on a stock Teryx. They went from 36RWHP to 67.5RWHP with a bolt together 840 or an 87% gain.
As above with porting 36-70.6RWHP or a 95% gain
As above but with big valves, porting and big throttle bodies 36-76RWHP or a 112% gain. I'm not sure which of those were with Dasa's exhaust which they said makes 6-7RWHP over the Muzzy that Todd dynoed with.

Now back to std bore, same kit as Todd did, just bolted together but with 39FCR's dynoed on Pro Shop dyno (Dynojet same as Hunterworks)
Went from 27RWHP stk to 71.6RWHP or a 165% gain. Now that sounds like a huge gain right, should be around 95.4RWHP on Dasa's dyno right, 36 =165%=95.4?
Wrong, That kit with 39fcr's and stk heads makes 108-110HP from 45 stk or a 140% increase. Why did it show 165% increase at the RW's? The FCRS give increadable throttle response and spike the HP, same as bigger displacement does or higher compression.
They also tuned the clutching a bit for the Dyno, so that and the FCR bottom end hit shows an extra 25% RWHP that isn't really there.
So again, with CVT's, chassis dynos are great for jetting, but as I and everyone else that understands CVT's have said for years, you can't really judge performance based on RWHP with a CVT.
Thanks,
Ray
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post #10 of 59 (permalink) Old 10-05-2009, 09:35 AM
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I agree you can't clutch a bike on the dyno because the loads are different especially when you factor in wind resistance but as far as HP differences vforcejohn's dyno has been pretty consistant on all the kawasaki's.
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