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Yamaha: Boosted Sleds (Turbo or Supercharged) Turbo discussion for Yamaha aftermarket Turbo or Super Charged sleds.
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Old 02-16-2017, 10:34 PM
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Default Difference between MCX260 and 310 kit for apex

What is the difference between these kits ?
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Old 02-17-2017, 12:26 AM
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I have estimated around 50 HP
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Old 02-17-2017, 07:23 AM
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Boost and fuel. 310 will require some added octane and a different clutch set up of course.
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2011 Nypex, Full CR tube tunnel with Carbon skin, MCX plenum, Boost It Fuel system, 174 x 16 x 3", CR M10 skid

2008 Nytro, 270 MCX pump fuel, 174 x16x 2.5", Racers Edge Skid, CR chasis, ZBroz Front end and Shocks

Apex with MCX front mount, Full CR chasis, 174 x16 X 2.5", Racers Edge skid, Boost It fuel system

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Old 02-18-2017, 05:17 PM
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To my knowledge, the 260 kit is older, runs and in tank fuel pump, and the smaller 16t turbo. The 290 horse kits which were newer had better fuel management and auto elevation compensation with a 19t turbo. The 310+ kits had a aftermarket fuel pump installed, that's what my sled has, however it was a older 310 kit which ran the 16t turbo and manual boost controller. Newer ones are a 19t turbo.

Octane wise my 310 apex I run 94 octane and hit 18-19# no detonation at like 5500+ feet. All their kits utilize a head shim.
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  #5  
Old 02-18-2017, 09:51 PM
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Thanks, that's what I was looking for.
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Old 02-20-2017, 09:03 AM
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In the original form the 310 kit had the elevation compensation as well. I think it came out in 2007. The big drawback of the 310 kit is you are way off the compressor map for the 16T. It is way past its point of efficiency and as a result it makes a ton of heat resulting in cracked headers etc. The 290 kit with the 19T is a way better setup. If I had one of those I would be inclined to get a 260 map for it or find a 19T and get the 290 programming which is what I ran in my Nypex. I have a friend who parts Yamaha sleds he has several MCX kits lying around, he may have a 19T.

M5
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Old 02-20-2017, 11:55 AM
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Quote:
Originally Posted by M5- View Post
In the original form the 310 kit had the elevation compensation as well. I think it came out in 2007. The big drawback of the 310 kit is you are way off the compressor map for the 16T. It is way past its point of efficiency and as a result it makes a ton of heat resulting in cracked headers etc. The 290 kit with the 19T is a way better setup. If I had one of those I would be inclined to get a 260 map for it or find a 19T and get the 290 programming which is what I ran in my Nypex. I have a friend who parts Yamaha sleds he has several MCX kits lying around, he may have a 19T.

M5
off topic m5 but i saw your rx1 on a poster for drags in Prince George
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Old 02-21-2017, 06:42 PM
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off topic m5 but i saw your rx1 on a poster for drags in Prince George

Really when was that, it was stolen like 6 years ago I never got it back.

M5
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Old 02-23-2017, 11:47 PM
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I'll text you a picture. My cell is 250 784 5575
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