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-   -   Extension Boxes and Set Backs (https://www.offshoreonly.com/forums/superboat/97952-extension-boxes-set-backs.html)

SUPERSTITIOUS 03-14-2005 08:09 PM

Re: Extension Boxes and Set Backs
 
Tom, my thoughts as well with the Imco

FX10 03-14-2005 09:21 PM

Re: Extension Boxes and Set Backs
 
Imco itm is !!!!!

Superbabi 03-15-2005 04:15 AM

Re: Extension Boxes and Set Backs
 
IF JOHN GETS ALL INFO AND #'S ON IMCO AND STEERING I"ll MAKE A DECISION. YES...........ASAP

krakmeup 03-15-2005 08:22 AM

Re: Extension Boxes and Set Backs
 
Sorry FASTER I missed your question on prop shaft measurement, do we still need it? I can run to the boat and do that easily.....

All these threads to keep up with, wow! Other OSO'ers are talking about how much posting is being done on this site!!

Gary - it sounds like you are near a decision, I'm watching patiently to see where you land, as I am considering many types of options for other power next year, good luck! You'll be splashing before you know it!!

FASTERDAMITT 03-15-2005 11:10 AM

Re: Extension Boxes and Set Backs
 
Krak, The next time your by the boat I'll take a measurement. Might be interesting.
Thanks Tom

krakmeup 03-17-2005 07:44 PM

Re: Extension Boxes and Set Backs
 
OK- got out to the boat today and did some work.

Best I could measure with the drive down and prop level the prop shaft sits 3.5" below the pad........

Pat McPherson 03-17-2005 10:34 PM

Re: Extension Boxes and Set Backs
 

Originally Posted by krakmeup
Best I could measure with the drive down and prop level the prop shaft sits 3.5" below the pad........

That is pretty high, but your numbers indicate that it's is right on... :D

The prop shaft is about 5" below the V on my boat.
I think Dave M. measured 6.5" below on his step/pad 24'.

I guess the notched transom on the 30 Y2K allows for the higher X dim.

But we know that professor jcap added a 2" spacer which I would assume put the prop 5.5" below... :drink:

SUPERBASH 03-18-2005 05:40 AM

Re: Extension Boxes and Set Backs
 
Here we go again. :rolleyes:
I run my propshaft between 2 1/2" & 3" below. I cant see what it matters if its an O/B or I/O. Any higher I go I lose speed...any lower the steering starts to get "trucky". :)
I think KRAK'S setup is right on. :D

krakmeup 03-18-2005 07:06 AM

Re: Extension Boxes and Set Backs
 
Aye, and I like it too.

Happy St Pat's Day!!

Pat McPherson 03-18-2005 08:48 AM

Re: Extension Boxes and Set Backs
 

Originally Posted by SUPERBASH
I run my propshaft between 2 1/2" & 3" below. I cant see what it matters if its an O/B or I/O.

Oh Superbash,
As we have discussed before, My boat is VARY different than yours... :cool:
If you look at the slip numbers for the way my boat is rigged, it is also pretty good. I know she's slower than yours, but 67mph @ 4600rpm with a 26p looks OK to me... :drink:
We'll see how she does with another 100HP... :D


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