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DUCKY
04-19-2003, 10:40 AM
How close to the bottom can your prop be? How close is too close?
Any Thoughts?
Rexone
04-19-2003, 01:40 PM
I've run them very close (under 1/4") before without any problem from a operational point of view. Some of the racers in here may be able to shed more light on how it might affect performance and speed??
Sangster
04-19-2003, 01:50 PM
Why is it so close...Is the Prop to Big or is it the strut angle that puts it so close..with the prop 1/4" from the end of the barrel how close is the prop from the bottom...
Rexone
04-19-2003, 02:01 PM
Strut installed height and prop dia both affect this especially with flat shaft angles like 7-8ยบ. So does barrel length. Someone may have set the strut to a low height for a certain prop having adequate clearance, now a little larger prop gets close... just speculating, lots of possibilities here why it might be close.
SERIOUS ISSUES
04-19-2003, 03:24 PM
It is for his fathers boat. the prop is alot bigger than he ran before. the engine he was running was apron 400-450hp. now he has a blown 500+ ci motor at aprox 650-750 hp. simple question. the new prop is 1/8 in from the bottom. Is there a problem w/ this safety wise or performance? I have run a blown cole flat and the prop was that close w/o any problems. has anyone experience problems w/ running the prop that close?
Sangster
04-19-2003, 04:18 PM
No....... :rolleyes:
T-Bag
04-19-2003, 06:16 PM
IF it is something that will be doing alot of "holeshot" leaves I would do some more homework. When a flat leaves and burns the prop the blades actually flaten out as they do this it is possable for diameter to increase. I would contact menkins (ad at the top) or the Grose's in lodi # 209 368-2571 joey. either one should be able to give a measurment.
Infomaniac
04-19-2003, 06:44 PM
Mine is really close. Have not measured it but would guess about 1/4"
DUCKY
04-19-2003, 07:46 PM
I only have about 1/4" clearance on mine. We had about 3/16", but it doesn't matter now. It was a 1 1/8 bore prop, and we bought one of those spacers to put it on a 1" shaft, and it just about shook the boat apart! We will not be using that prop....
Thanks Guys! :D
[ April 19, 2003, 08:47 PM: Message edited by: DUCKY ]