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03-16-2003 06:00 PM  14 years agoPost 1
90convert

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Heli land

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Hi

Can someone help me find the Robbe Part number for 90 size clutch for a futura Nova

Cheers

Howard

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03-16-2003 06:49 PM  14 years agoPost 2
Futurac

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Belgium , Europe

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clutch

s4109

Alex (Formerly Known as RCMarket )

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03-16-2003 06:51 PM  14 years agoPost 3
90convert

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Heli land

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Thanks very much

Howard

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03-17-2003 07:32 PM  14 years agoPost 4
Rchover

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Helping Customers!

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Id' recomend that you use either the 25 tooth clutch bell gear ratio 8.1:1 or the 26 tooth clutch bell 7.8:1, both those gear ratios are proven to work EXcellent with the oscspec 91

25 tooth prt# s4655

26 is s4656

use the 390 belt part #4112

and you will need shims to add to the motor mount to adjust the belt tention, I suggest you make your own

or you can just buy the convertion set with the 27 tooth part # s3088 comes with belt , pully shims and heavy duty clutch...personally this 27t bell ratio 7.57:1 is alittle low for extreme 3d power band , but is great for FAI sport flying

I do suggest that you save your $$$ on the metal fan and heavy duty clutch, if you do have slippage you can put the clutch in later, the fan is a waste of money IMHO

good luck
the real mckoi

Jeremy

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