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boatman747

04-07-2008 07:17 PM

#IV speedmaster bigshafts

How much stronger are these big shaft #4 drives verses the stock small shaft #4 drives ?Will they handle 1000 HP ?

Chris Sunkin

04-07-2008 07:34 PM

the III to IIIa added 100 hp to the rating. 750 to 850.

Can you put 1K thru them? Sure? Will it drastically shorten their lifespan? Absolutely. You need VI's for that kind of power- unless your Bob Saccenti and never make a throttle mistake.

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