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-   -   2 inch shorty on a 271 sr-1? (https://www.offshoreonly.com/forums/formula/226718-2-inch-shorty-271-sr-1-a.html)

[email protected] 03-20-2010 09:52 AM

2 inch shorty on a 271 sr-1?
 
Has anyone done this? And what was the end result? Thinking of doing this to mine.

endeavour32 03-20-2010 03:30 PM


Originally Posted by [email protected] (Post 3071014)
Has anyone done this? And what was the end result? Thinking of doing this to mine.

Same here, curious what the results are!

ThirdBird 03-21-2010 08:01 AM

For some reasom, 271s have a tough time planning off in stock form with a deep drive. I don't think a shorty on a 271 would be a good combination.

[email protected] 03-21-2010 08:27 AM

Ya it does take some time to get on plane but I run a 4 blade 28p bravo now. A 4 blade has a lot of prop in the water just wondering if you raise the x dim I might find some more speed.

endeavour32 03-21-2010 06:01 PM

does your hull have the hooks in it like the 242 does?

[email protected] 03-21-2010 06:49 PM


Originally Posted by endeavour32 (Post 3071854)
does your hull have the hooks in it like the 242 does?

yes it does

formula 382 sr-1 03-21-2010 07:58 PM


Originally Posted by endeavour32 (Post 3071854)
does your hull have the hooks in it like the 242 does?

Glass them in 3 to 4 ft forward it helps.:coolcowboy:

endeavour32 03-21-2010 08:17 PM


Originally Posted by formula 382 sr-1 (Post 3071965)
Glass them in 3 to 4 ft forward it helps.:coolcowboy:

What exactly do you mean by this? i'm trying to decide what to do with the hooks on my 242.

offthefront 03-22-2010 06:09 AM


Originally Posted by endeavour32 (Post 3071987)
What exactly do you mean by this? i'm trying to decide what to do with the hooks on my 242.

I think he is saying make sure the bottom is flat 4' forward of the back of the boat .....

Berglund 03-22-2010 07:47 AM

EDIT: Below is with a fastech, not sr1.

The following is experiences from "RattlesnakeJake" from the Speedwake forums, shared in a mail-correspondence between us. I hope he doesn't mind me posting it here.


Originally Posted by RattlesnakeJake

As far as the 2" shortie, I experienced extreme prop blowout and when I tried larger props I couldn't spin them fast enough to get max RPMs. Peak HP is @ 5400 RPM. I had the opportunity to try the speedmaster with the only cost to me being the water pickup and it didn't work out. There's another 271 in the area with a 650 HP Supercharged 502 and he's running a 1" spacer on his XR drive to get it deeper.
In theory the shortie should have given me better all round performance. But like the saying goes, "If the results disprove the theory, go with the results and get a new theory.



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