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Will R
Joined: 31 Jul 2005 Posts: 677 Location: NWT/Alberta
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Posted: Thu Jul 15, 2010 2:18 pm Post subject: |
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clever man that boosted fella! cutlass bushing works extremely well and eliminates greasing or oiling = less headache
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Itsworthit

Joined: 15 Jun 2005 Posts: 432 Location: Whitecourt
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Posted: Thu Jul 15, 2010 2:31 pm Post subject: |
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Will the Cutlass Bearing handle the RPM tho?, Can you machine a labrynith seal into the faces, ( 2 rings, one on the impeller and one to the bowl) to act as a buffer, kinda where those stuffer rings are located,
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boosted

Joined: 04 Jun 2009 Posts: 378
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Posted: Thu Jul 15, 2010 5:37 pm Post subject: |
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Pretty sure they will. there has been a few racers that have used them in the past with no issues. I know Brian Mcgreggor did.
_________________ Mark
Lets go back I think we missed one rock! |
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TOP DAWG

Joined: 15 Jun 2005 Posts: 574 Location: Peace River Alberta anada
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Posted: Thu Jul 15, 2010 6:10 pm Post subject: |
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Rob, what about the Bushing Dominator uses, the bushing that lets water go through, I know an A class boat that been using it for some time and has never had an issue
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Coyotitto
Joined: 19 Sep 2005 Posts: 54 Location: Red Deer River
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Posted: Thu Jul 15, 2010 6:29 pm Post subject: |
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Never been a fan of them especialy in dirty water Garrett has a possible solution wioth a much better hydraulic type seal. With respect to rpm bear in mind we are over driving the pump 6% on John Derrys 12% on Gords 6000 rpm on the power turbine = 6720 pump speed for example
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Forplay

Joined: 15 Sep 2008 Posts: 85 Location: Leduc, AB
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Posted: Fri Jul 16, 2010 11:01 pm Post subject: |
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Just an update for those interested,
SKF Economos engineering http://www.economos.com/en/ came up with a seal for the criteria. We made them size on size as a direct drop in seal replacement, so you'll still run two of them back to back and they need to be secured in the cavity with the snap-ring. Design should give >400psi differential from the water to the grease. Teflon w/carbon provides the strength/psi with built in lubrication for the shaft speeds.
Material: SKF Ecoflon 4 (PFTE w/25% Carbon)
Profile: RF01-F High Speed, High Pressure Rotary Seal Design
Rated PSI: 220psi
Rated RPM (1.125" Shaft): 7000rpm
Working Temp: -200C to +260C
Got some being made up, hopefully this does the trick.
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Kev-o

Joined: 17 Jun 2005 Posts: 625 Location: Sylvan Lake
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Posted: Sat Jul 17, 2010 7:36 am Post subject: |
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WOW you work fast Garett. This is why these forums are so powerful, they hook up people in the know with people in the need!
Thanks for the help forplay.
Kev-o
_________________ Kevin Kipling |
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Arthur Outlaw Eagle Admin

Joined: 28 Oct 2006 Posts: 1654 Location: On the rocks
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Posted: Sat Jul 17, 2010 8:06 am Post subject: |
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Pretty handy guy to have around.I heard he can drive like Cole Trickle too.........
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JET1
Joined: 03 Jun 2010 Posts: 42
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Posted: Sat Jul 17, 2010 10:29 am Post subject: |
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"rubbing is racing son" so if you aint rubbing bottom once and awhile you arnt racing
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Alumaman
Joined: 26 Jul 2005 Posts: 306 Location: Whitecourt
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Posted: Tue Jul 27, 2010 10:03 am Post subject: |
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Everyone's asking about turbines coming to Whitecourt's race
Gordy? Ryan? John?
Anyone know?
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Coyotitto
Joined: 19 Sep 2005 Posts: 54 Location: Red Deer River
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Posted: Tue Jul 27, 2010 7:14 pm Post subject: |
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Should be Gordy and Ryan . Johns boat has left for NZ.
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