Hey Techies
02-03-2006 | 08:04 AM
#13
Registered
Joined: Mar 2002
Posts: 5,143
Likes: 1
From: Cajun Country
Re: Hey Techies
With 23P Rev 4 Propellers, 1.5 gears, 4400 RPM at 60MPH on gps=
6% slip! This is not likely with your set-up. I would verify you recording devices.
Verify Tach
Verify Pitch
Verify GPS
Verify gear ratio
Most likely one of these is numbers we are using to calculate your slip is inaccurate.
Julie
6% slip! This is not likely with your set-up. I would verify you recording devices.
Verify Tach
Verify Pitch
Verify GPS
Verify gear ratio
Most likely one of these is numbers we are using to calculate your slip is inaccurate.
Julie
Last edited by throttleup; 02-03-2006 at 08:07 AM.
02-06-2006 | 04:22 PM
#14
Charter Member # 55
Joined: Oct 2000
Posts: 20,255
Likes: 2,504
From: Omaha/LOTO
Re: Hey Techies
Originally Posted by dean51267
ummm, not good. I was running 59/60 at 4400 RPM before, I figured I was picking up 200 HP, 800 RPM, and losing about 600# from the engine compartment, I read somewhere it takes 15 to 20 hp to make one MPH, so 200 should equal 10 mph, and the added 800 rpm should get me a little more, and the weight was a bonus.
what am I missing? are shorties the answer to get to those speeds? Profile says this is thier fastest hulls, so what do I need to do to get the added speed besides gobs and gobs of hp, which would test my drives....
what am I missing? are shorties the answer to get to those speeds? Profile says this is thier fastest hulls, so what do I need to do to get the added speed besides gobs and gobs of hp, which would test my drives....
On twin engine boats, that 15-20hp is going to be PER ENGINE to pick up a mph.
