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Ski-Doo: TURBO Turbo discussion for Ski-Doo aftermarket turbo sleds
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  #1  
Old 02-07-2019, 11:56 AM
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Default Powder Freak 850 Head

Anybody running a Powder Freak head on their G4 850 turbo?

Thoughts? Good or Bad...

https://powderfreaks.net/products/sk...50-billet-head
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  #2  
Old 02-11-2019, 11:47 AM
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turbo800 turbo800 is offline
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Hmm, guess that's a NO on the PF head.
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Old 02-11-2019, 11:50 AM
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Has anybody had RK Tek re-domed their 800 or 850 Etec head for boost?
He claims you can run 2psi more boost with the same grade fuel and make more HP with his dome design.
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'98 YZ 250 - Setup for single track trails
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  #4  
Old 02-11-2019, 07:10 PM
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Like a junkie... 5 psi is never enough
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  #5  
Old 03-06-2019, 02:04 PM
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OK, I guess I'll be the guinea pig...lol





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'98 YZ 250 - Setup for single track trails

Last edited by turbo800; 03-06-2019 at 02:15 PM.
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Old 03-10-2019, 03:28 PM
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Did you get them on your 850 yet? How are you controlling boost level on your MPI kit?
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Old 03-11-2019, 10:45 AM
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Quote:
Originally Posted by Chadly View Post
Did you get them on your 850 yet? How are you controlling boost level on your MPI kit?
Yes, I was able to get the head mounted up on the 850 over the weekend. I haven't been able to ride it yet though. Those are mine pics I shared from Photobucket.

Boost is still controlled with the MPI adjustable boost regulator to maintain 200HP.

Had I done the RK Tek re-dome to the stock head, I would have added a boost T inline to add 2psi more boost.
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'17 Summit SP 850 165 x 3"- MPI 200HP turbo
'09 Summit X 800R 163 (Blk/Blu)- Stocker
'05 Summit X RT1000 - CS1240 Big Bore Kit 174"

CR500AF / '14 Timbersled 120 ST - Snowbike
'98 YZ 250 - Setup for single track trails
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Old 04-12-2019, 08:47 PM
idahoskiguy idahoskiguy is offline
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How did the Powder Freaks head work out?
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