rk tech head on a 01 mxz 800!! - HCS Snowmobile Forums

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Old 01-21-2008, 04:58 PM   #1 (permalink)
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How is the engine performance after installing the head alone? any gains in performance? i need information on the head, i am planing on getting the head alone and i need some info before i buy it.....
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Old 01-23-2008, 01:11 PM   #2 (permalink)
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Buy it! you won't be dissapointed!!!!!!
I put one on my "Z" and added about 5-6 horse along with some performance pistons, reeds, spacer plates. paid about $385.00 for it (HEAD) and had it in 4 days at my door.

very happy with them over @ R-K TEK!!!!
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Old 01-23-2008, 05:45 PM   #3 (permalink)
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Nathan, fill me in on this head. I have the same year sled and engine and looking to up the power with some bolt on products.....

Doo

ps have a link to see the head and info on it??
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Old 01-23-2008, 11:50 PM   #4 (permalink)
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Quote:
Nathan, fill me in on this head. I have the same year sled and engine and looking to up the power with some bolt on products.....

Doo

ps have a link to see the head and info on it??[/b]
Here is a website you can check out all the information on the heads and alot more bolt on stuff by rk tek,, it is 2strokeheads.com/tech.htm
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Old 01-24-2008, 07:15 PM   #5 (permalink)
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Bone did you get any top end gain?
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Old 01-25-2008, 11:44 AM   #6 (permalink)
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yes....and lots of it.
well worht the $ those guys know there stuff.
I called them with tech questions and they helped me out big time!
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Old 01-28-2008, 12:49 PM   #7 (permalink)
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Thanks Nathan. I checked the site out. I'll give them a call.
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Old 01-28-2008, 09:42 PM   #8 (permalink)
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Now I checked out their site as well as Cudney Racing. I now know what it means to do a "head reaplacement". Cudney racing show a video on their site on a 800 REV. But I have noticed both Cudney AND RK have almost identical heads (underside). I am not sure about the domes. What is RK claiming for Hp gains with just the heads and domes replaced? Cudney is 6-8Hp.
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Old 01-29-2008, 10:41 AM   #9 (permalink)
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GAIN OF +6 HP
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Old 01-29-2008, 06:22 PM   #10 (permalink)
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I ask RK what was the HP gain, their response "That head was dyno'd at 5 different dyno's at 13HP gain..".....
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