Who is building the 4 cylinder 2 stroke XF? - HCS Snowmobile Forums

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Old 03-22-2016, 01:48 PM   #1 (permalink)
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Default Who is building the 4 cylinder 2 stroke XF?

seen the spy pics from jawz crazy bud!
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Old 03-22-2016, 01:53 PM   #2 (permalink)
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2 f7 motors welded fused together inline 4
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Old 03-22-2016, 09:34 PM   #3 (permalink)
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The bulk head has the room but pipes seem like a real PITA. Just another reason to hate that hood.
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Old 03-22-2016, 11:55 PM   #4 (permalink)
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The pipes would be the biggest challenge with any of the new sleds. We contemplated trying to put a buddys 7 or 800 triple in the xp i just built, it would have to be run as a single pipe setup as theres no room for triple pipes. That motor would be crazy once dialed in. Should make in around 280-300 hp right?
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Old 03-23-2016, 12:38 PM   #5 (permalink)
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I have a 3 cylinder 1200 cc fire cat engine that we put together about 5 years ago.runs very well. going to sell it. no time to spend with it anymore.
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Old 03-23-2016, 03:51 PM   #6 (permalink)
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Originally Posted by 1990Prowler View Post
The pipes would be the biggest challenge with any of the new sleds. We contemplated trying to put a buddys 7 or 800 triple in the xp i just built, it would have to be run as a single pipe setup as theres no room for triple pipes. That motor would be crazy once dialed in. Should make in around 280-300 hp right?
Unlike 2s twins 2s triples do not respond well to single pipes. If you can get 280hp out of a naturally aspirated 3cyl two stroke not only would it be a world record it might classify as a miracle!
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Old 03-23-2016, 05:01 PM   #7 (permalink)
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Where are the pics / story?
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Old 03-23-2016, 05:23 PM   #8 (permalink)
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Where are the pics / story?
X2
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Old 03-23-2016, 05:55 PM   #9 (permalink)
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I wasnt sure if the 3 cylinder would work with a single. When i said it should make 280-300 hp i meant the 4 cylinder f7 motor. Theres no way a doo triple NA would make 300 hp in my book
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Old 03-23-2016, 08:23 PM   #10 (permalink)
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I wasnt sure if the 3 cylinder would work with a single. When i said it should make 280-300 hp i meant the 4 cylinder f7 motor. Theres no way a doo triple NA would make 300 hp in my book
sounds about right ..stock 140 times 2 = 280 ...run it with two single pipe mods and look out !!
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