hogie roll

You just can't surface a single like that. It's going to be trying so hard to walk sideways the entire time. A beefy dual prop outdrive will be the salvation of fast singles.

Another possibly more feasible I had the other day. Just run two bravos on a single engine via a gear box.

Cheap drives and having two may give them a chance to stand up to a high power single engine.

pro27

My 27 runs better with the 5 blade clever so far,torque tab on the skeg,IMCO scx4

Uncle Dave

How far out of the water is it?

UD

pro27

[ATTACH=CONFIG]531102[/ATTACH] shaft is 2" above bottom

Uncle Dave

Thanks.

just a few more..

Was it a bravo prior? if so what was prop shaft depth then?

Did you get to do an A-B speed and handling comparison with the same power, or did you change the drive and engine at the same time?

UD

pro27

Boat had similar horsepower @ 700 with bravo style IMCO shaft was below bottom not sure exactly how far ran high 90's.Boat at 100 now with more to go,and has better control and stable according to rigger who has driven it with both set ups.I had new power installed Whippled Merc 525 EFI with new drive,prop,and x dim.

pro27

[ATTACH=CONFIG]531111[/ATTACH][ATTACH=CONFIG]531112[/ATTACH] new gauges and dash also

Uncle Dave

Sounds like its working for you which is great.
I'll be watching to see this evolves, lots of guys with that changed to the SCX have lost some speed, but its been fairly rare to see SX4's on small v's.

Doesn't sound like a true back to back is possible with so many changes but the fact that you seem to be going faster with near level HP is always good.


Thanks.

UD

pro27

I believe mine was one of the first single V hulls to use the SCX4 gear case,IMCO added a torque tab to the skeg for me to prevent blow out that I was experiencing at high speed,it has been all good since then.Love the set up.

hogie roll

His is high enough that it won't create lift like a setup where the entire bullet isn't above the hull bottom. That huge skeg must help too.