Cuda - Kaama drive props?

[Footloose]

Cuda, can you describe your setup again for me on the Kaama? HP, props type and size, reduction if any in trans. I am still trying to work my props out for my arneson drives....driving me nuts. Thanks dude!

[Cuda]

454/420 engines punched to 468, hotter cam 10:1 cr, I'm guessing 450 or so a side. Props are four blade 16x26. Danged if I can remember the reduction. I've probably got it written down somewhere.

[Cuda]

What boat are you working on?

[Footloose]

What boat are you working on?

As you know I am split personality ... have a Donzi F33 I am selling and I've been slaving over a Harley 43 for the past 1.5 years that has Arneson drives. Having prop troubles....can't afford 5 blad rolla props for $10k each (more than I paid for the boat)...looking for alternatives....or having my existing ones tweaked to work. Currently I have 19" diameter with 17" pitch 12-cup...need another 1000 rpm.

[Cuda]

Ah, didn't recognize you Swamplizard. :biggrin:

[mrfixxall]

I have a pair of 16x23 four blades..19 spline????

[Footloose]

My shafts are 19 spline but prop guys is telling me the boat is so long and heavy that I need to keep prop size up ...19"-diameter now. As I understand it, if prop size goes down, slip percentage goes up. Your props are 16 diameter and 23 pitch -correct?

guys have any idea how that will work on this beast of a boat?

[mrfixxall]

the props came off of a 38' top gun with 598cid that weighed 10500lbs.. a bibbet diameter prop will push a wider wake but a smaller diameter will narrow wake and a harder and further thrust behind the boat...p.s. the cig ran close to 80 mph with thease props and a friend tried thease props on his 32'scater with small blocks 406 with kamma drives and almost hit 90 mph..
i see yours is a 43' a friend has a 40 ' magnum with arnison drives he had the best luck with a pait of 20x16 with 540 cid thay push the boat to 48mph.

[Footloose]

MrFixxall- the Harley weighs in at probably (guess - everytime I get it lifted by a hoist the scale is busted!) 15,000 (1989 brochure says 10,000 but I dont bwlieve it). Magnums are big heavy boats also and usually have diesle CAT8s so gear ratios and probs are very different. The magnum props wer 20"diameter and 1-pitch ...close to what I probably need.

I'd like to do some experimenting.....are you local to try your props out?

How much you asking for them?

[mrfixxall]

MrFixxall- the Harley weighs in at probably (guess - everytime I get it lifted by a hoist the scale is busted!) 15,000 (1989 brochure says 10,000 but I dont bwlieve it). Magnums are big heavy boats also and usually have diesle CAT8s so gear ratios and probs are very different. The magnum props wer 20"diameter and 1-pitch ...close to what I probably need.

I'd like to do some experimenting.....are you local to try your props out?

How much you asking for them?
if your boat is anything like the magnum this sucker weighed 15000+ and i dont know the gear ratio,,,,, i live near chicago but ill be in sarasota july 1---6 for thesuncoast off shore race but i dont know what the airlines would say about the props if i brought them.....

[Footloose]

my ratios are 1.53:1 .

Carying props would not be fun on a plane but thanks for the offer.

If they could theoretically work/fix shaft - I'd gladly pay to ship em each way for a try.

O