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Old 20 March 2006, 14:43   #11
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Suzukis have loads of torque and a big gear ratio.

Mine will pull my 20 stone lump out of the water on a wakeboard with 5 adults and 2 kids on board with a 21" prop - not like those wussy optimax 2 strokes
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Old 20 March 2006, 14:48   #12
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Ive also had 8 adults and 2 kids on board on a trip to fowey and it was fine also...

I would say if your over revving to 6300 you can definately go up a prop size - stainless will make quite a bit of difference as well - lower drag, sharper blades
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Old 20 March 2006, 14:49   #13
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Wussey?!! Cheeky git I tried a 23" on my Rinker which had a 260hp Merc V8 throwing it around. The 21" was perfect, with a 23" it really struggled to pull out. It didn't half fly when we did get it up.
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Old 20 March 2006, 14:58   #14
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Quote:
Originally Posted by Alice
Wussey?!! Cheeky git I tried a 23" on my Rinker which had a 260hp Merc V8 throwing it around. The 21" was perfect, with a 23" it really struggled to pull out. It didn't half fly when we did get it up.
Have you ever been to Cornwall Alice?
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Old 20 March 2006, 17:14   #15
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I've ordered a 21" Solas Stainless Steel prop... figured I wanted to keep mid range grunt
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Old 20 March 2006, 18:20   #16
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Old 21 March 2006, 03:55   #17
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Quote:
Originally Posted by Mrdeli
I've ordered a 21" Solas Stainless Steel prop... figured I wanted to keep mid range grunt
I have just switched from a 21" standard ally to a 21" stainless - it gave me just over 100 extra rpm and a couple of extra knots. I think if you were already at 6300 you may find you are now hitting the rev limiter - which on a suzuki is a right pain in the arse as it will cut your revs to 3000rpm and will not allow any more until you return to idle for 1 second - only then can you throttle back up...
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Old 21 March 2006, 08:42   #18
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Maybe i'd better get a 22 or 23 then...

I certainly don't want to be down at 3000 rpm... that's for sure!
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Old 21 March 2006, 10:23   #19
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Unfortunately with props you either have to be lucky - or if your not lucky - persevere.

You have the same engine as me - but your boat must be lighter or your hull faster as i was only getting 6000rpm with the standard ally prop - now i have the stainless i feel its perfect.

It also depends alot on the other characteristics of the prop ie cuping, rake, blade area, etc... so im afraid i cant really help you other than tell you my experiences - it could be, for instance, that the stainless you have ordered has alot of cupping and you will get no rpm increase at all !!!
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Old 21 March 2006, 10:28   #20
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Quote:
Originally Posted by roycruse
if you were already at 6300 you may find you are now hitting the rev limiter - which on a suzuki is a right pain in the arse as it will cut your revs to 3000rpm and will not allow any more until you return to idle for 1 second - only then can you throttle back up...
nice feature for keeping the engine with a longer life but could be a safety issue in extreme circumstances.
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