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Huckleberry
09-12-2006, 09:27 PM
Does anyone have a website link that has a good prop slip calculator?
rrrr
09-12-2006, 09:36 PM
Just mess around with your cell phone calc until you come up with 7%. :D
Or you could try Bam Marine (http://www.go-fast.com/bam_marine_knowledge_base.htm). Some pretty good stuff there. :rollside:
Huckleberry
09-12-2006, 09:41 PM
Just mess around with your cell phone calc until you come up with 7%. :D
Or you could try Bam Marine (http://www.go-fast.com/bam_marine_knowledge_base.htm). Some pretty good stuff there. :rollside:
LMFAO!!! Thanks for the link.
Cheap Thrills
09-12-2006, 09:43 PM
tried this one? (http://www.go-fast.com/Prop_Slip_Calculator.htm)
C.T. :wink:
Huckleberry
09-12-2006, 09:51 PM
I used the one on BAM's site. So is 17% really high for a surface drive?
Huckleberry
09-13-2006, 01:51 PM
Ttt
ULTRA26 # 1
09-13-2006, 02:06 PM
Does anyone have a website link that has a good prop slip calculator?
Huck,
Don't know how good it is but Bronson Hill has a prop calc on their site;
http://www.boatpropellers.com/about.html
John
Huckleberry
09-13-2006, 02:16 PM
Tried Bronson Hills, but it will not take speeds above 100.
h2oski2fast
09-13-2006, 02:29 PM
google.com there are plenty of them out there.
ULTRA26 # 1
09-13-2006, 03:30 PM
Tried Bronson Hills, but it will not take speeds above 100.
opps
Huckleberry
09-13-2006, 03:59 PM
I used the one on BAM's site. So is 17% really high for a surface drive?
Marty Gras
09-13-2006, 09:03 PM
The answer depends on blade speed, hull speed and quickness needed. Does it take you 30 seconds to get up to 17%? Do you just roll it over and get top speed (17%) in 10 seconds? What do you want the boat to do (within reason)? Some want "pull" to top speed and others will 'suffer thru ' weak low and mid' for top end speeds. Do you have an accurate speed measurment tool?
Huckleberry
09-13-2006, 09:12 PM
Once on plane and I hammer the throttles, it will take 15 seconds or so to build up to top speed. As far as what I would like...I've been told by the engine builder, Eliminator, and Aaron at Absolute that with the power I have, my boat should be able to run at least 130. It is just not possible with the 1.5 gears in my drives. I've gotta re-gear them, but at a cost of about $6,000 per drive. OUCH! I don't need to have a hard pull to top speed. I used a Norskog GPS speedo for speed measurement and Gaffrig tattletale tachs for recording RPM's.
Tom Brown
09-13-2006, 09:18 PM
tried this one? (http://www.go-fast.com/Prop_Slip_Calculator.htm)
That's my favorite slip calculator too. :cool:
BajaMike
09-13-2006, 10:10 PM
Once on plane and I hammer the throttles, it will take 15 seconds or so to build up to top speed. As far as what I would like...I've been told by the engine builder, Eliminator, and Aaron at Absolute that with the power I have, my boat should be able to run at least 130. It is just not possible with the 1.5 gears in my drives. I've gotta re-gear them, but at a cost of about $6,000 per drive. OUCH! I don't need to have a hard pull to top speed. I used a Norskog GPS speedo for speed measurement and Gaffrig tattletale tachs for recording RPM's.
You believe your engine/boat builder???.....:D
J/K What speed are you getting?? rather then changing gears can't you just prop up???
:cool:
rrrr
09-14-2006, 08:21 AM
...I've been told by the engine builder, Eliminator, and Aaron at Absolute that with the power I have, my boat should be able to run at least 130.
Thereya go making things complicated again. Here's how it's done:
Me: "Nice looking boat. How fast will it run?"
Huckleberry: "Thanks. I've had it up to 142 on GPS. If I can get someone to throttle for me while I drive, it should hit 150 no problem."
Me: "No shit? Man, that's sweeeeeeet!"
Ta-daaaaaaa!!! Problem solved, and best of all, it was free!!! :crossx: :D