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occom
Joined: 26 Aug 2006
Posts: 404
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 Posted: Sun Oct 14, 2007 5:27 am Post subject: HKS? |
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Has anyone any experience with this engine on a Model IV? It appears to be a reasonable match for the 582 that performs so well on this aircraft. It's a reasonable price and uses much less fuel than the two stroke and should prove reliable.
Dave Goddard- Mod IV 1050/582
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trevorkebb(at)earthlink.n
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| Posted: Sun Oct 14, 2007 6:44 pm Post subject: HKS? |
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Dave:
The HKS is a nice engine and parsimonious on the fuel to be sure, but the general consensus in the aviation community is that the HKS engines do not put out near the HP claimed, probably about 45-50 on a good day. A fellow out at Cushing has one on a Model ll, loves it to death, but in a comparison fly off with my 582 powered Model IV (100+ lbs heavier and me 75lbs heavier than the other pilot) it was no contest, and I mean no contest; the 582 decisively and easily outperformed it in every parameter, hands down.
The HKS seems to work best, and shows up on, ultralights and homebuilts with empty weights much less than 400lbs. The lighter the better. You don't see them on heavier aircraft.
It's a nice engine, but it is way down on power compared to the 582.
Robert Beck
[quote]
Has anyone any experience with this engine on a Model IV? It appears to be a reasonable match for the 582 that performs so well on this aircraft. It's a reasonable price and uses much less fuel than the two stroke and should prove reliable.
Dave Goddard- Mod IV 1050/582
do not archive
[b]
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Mnflyer
Joined: 15 May 2006
Posts: 78
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| Posted: Sun Oct 14, 2007 7:03 pm Post subject: Re: HKS? |
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Hi I converted my Kitfox III about 1.5 years ago and I can tell you the the HKS produces a full 60 hp and can keep up with the 582 any day of the week. I have 298 hrs flying with the 582 and now have 198 hrs with the HKS . I can tell you that the HKS preforms just as well as the 582 in takeoff run climb and does much better in cruise and of course at 3 gph vs 4.5 of fuel it can fly 4.7 hrs vs 3 hr with my 15 gal of fuel.
I'll fly against any 582 any day and it will be a real contest and the 582 will lose.
For some reason many people think that its a 503 and prop the engine with a 503 prop and thus it will not produce its full rated hp of 60 hp.
I have a 68" 2 blade Warp Drive and the engine preforms better then the 582 I removed.
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GB
MNFlyer
Flying a HKS Kitfox III |
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dave
Joined: 22 Sep 2006
Posts: 1382
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| Posted: Mon Oct 15, 2007 2:22 am Post subject: Re: HKS? |
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Interesting topic 582 vs HKS.
What cruise speed so you get with the HKS ?
If you read the past post of mine you will see that the 582 in the Kitfox with the exhaust mod done by Denny and Skystar cuts the max 64 hp from the 582 to I am only guessing to 58 to 60 HP but fuel flow still the same.
Would be more than happy to compare results for performance. Post some videos like i did to show how it actually performs. My videos are all done before i corrected my exhaust so I can say the HP would be about the same as the HKS. http://www.cfisher.com/
| Quote: | I can tell you that the HKS preforms just as well as the 582 in takeoff run climb and does much better in cruise and of course at 3 gph vs 4.5 of fuel it can fly 4.7 hrs vs 3 hr with my 15 gal of fuel.
I'll fly against any 582 any day and it will be a real contest and the 582 will lose.
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| | - The Matronics Kitfox-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
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