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June 17th, 2006, 09:34 AM   #1
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Factory KTM 450 SX-F

There haev been hints about this project, now it has been officially reported in Dirt Bike magazine of all places.

59 HP, Electirc start and only 100 kg

Here is the 2 page article..

Maybe there is hope for Husaberg also?

Regards,

Joe
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June 17th, 2006, 10:52 AM   #2
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Re: Factory KTM 450 SX-F

Hi Joe,
Did you take note of the Bore and Stroke? ( 97 x 60.8 )
Indeed, near identical to that of my 444 of 2001.

Why not a 100 mm bore like the Husaberg 450? LOL


2001 Lineaweaver / Husaberg 444

Perhaps early Husaberg Dirttrack testing helped shape the modern KTM?
Nah, I am certain such is simply coincidence.

Dale
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June 17th, 2006, 11:06 AM   #3
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Re: Factory KTM 450 SX-F

They do have a 100mm bore version that they are calling a 505, when in reality it is really only 470cc, I believe.
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June 17th, 2006, 11:36 AM   #4
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Re: Factory KTM 450 SX-F

Originally Posted by Brendan
They do have a 100mm bore version that they are calling a 505, when in reality it is really only 470cc, I believe.
If I had a dollar for every 470 I converted to a 97 mm bore 450.......
Well, I would have five dollars.

Dale
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June 17th, 2006, 12:39 PM   #5
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Re: Factory KTM 450 SX-F

Originally Posted by LINEAWEAVER
Hi Joe,
Did you take note of the Bore and Stroke? ( 97 x 60.8 )
Indeed, near identical to that of my 444 of 2001.

Why not a 100 mm bore like the Husaberg 450? LOL


2001 Lineaweaver / Husaberg 444

Perhaps early Husaberg Dirttrack testing helped shape the modern KTM?
Nah, I am certain such is simply coincidence.

Dale
Hi Dale,

Yes I did note the bore/stroke ratio, the first thing I did when I turned to the article.

We don't know what the curves look like, but for the same size valves, I bet they could have gone to 95mm bore and 63.3 stroke, which I bet is close to what the ORIGINAL Husaberg 450 prototype engine was that is rumored was so hot that it got killed by big bro.

I can hardly wait to see the specs on the production KTM.

I am a retired Aerospace Engineer, and regret not pursuing my true love, engines.

Regards,

Joe
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June 17th, 2006, 12:51 PM   #6
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Re: Factory KTM 450 SX-F

Hi Joe,
Truth be told the 97 mm bore makes very good use of 37 mm inlet valves. (ie no bore shrouding)

Hope you are doing well.

Sincerely,
Dale
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June 20th, 2006, 05:16 PM   #7
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Re: Factory KTM 450 SX-F

I wanna show some 97mm dyno curves!
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June 21st, 2006, 10:48 AM   #8
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Re: Factory KTM 450 SX-F

Originally Posted by SFO
I wanna show some 97mm dyno curves!
Five valve engines can't play. JK
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June 21st, 2006, 07:47 PM   #9
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Re: Factory KTM 450 SX-F

what does that have to do with anything
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