Re: Who runs a 20' or smaller boat?
 

we run a 16f/t scout flats boat pad bottom steptransmon. power by a 90hp merc 55mph with a 13.50 x22 turbo 2+2x 4 blade . 63mph with me and a merc inline chopper 24 pitch runnin on fumes. robbie more to come :drink: :drink: :drink: :D :D

Re: Who runs a 20' or smaller boat?
 

i like this thread. i got a 1990 four winns liberator 201. 350 omc king cobra. this is my first boat and trying to move up into the performance boating world. the best ive seen is 54.9 gps. im glad to see im not the only one with a small boat.

Re: Who runs a 20' or smaller boat?
 

1972 18' Sutphen Gran Sport. Only one on the west coast? SBC AQ311 Volvo/ Penta with hi-rise exhaust. Give or take 320hp. 65 mph.

Re: Who runs a 20' or smaller boat?
 

I'd be concerned with the torque of a big block causing the boat to lean excessivly. Heard of a 22' Donzi with a 502 that did this. Not a direct comparison, but it may help.

Re: Who runs a 20' or smaller boat?
 

If the 22 did this, there were other issues besides the BB... Prop being the first suspect.... Fat chick in the passenger seat the second :D :D

I'm not a BB 18 fan.. Too much stern weight, and the speeds are no better than a SB really... Coolness factor is way high tho :drink:

Re: Who runs a 20' or smaller boat?
 

This is my Donzi 1981 18 2+3 with TRS drive and 454. I have never GPS'd it but I know it needs a LOT more prop then it has and it already runs faster then a 2003 18 with 350mpi in it.

Jon

Re: Who runs a 20' or smaller boat?
 

Another 18' Donzi checking in...

1970 18 2+3 351W Holman-Moody w/ Volvo AQ250 drive and 23" Ultra prop. Best I've seen is around 55mph, but it's a BLAST! I don't get to drive it much, can't get Janet out of the drivers seat!!

Re: Who runs a 20' or smaller boat?
 

I agree, coolness factor is through the roof! :D

I know the boat can handle the speed and power, but I don't know how the weight will affect the ride. It handles the rough VERY well now, I don't want to give that up. And there is really no way of knowing how it will handle the weight until you try. I was going to place some bags of cement in the bilge but that will really only tell you how it will handle at current speeds, not the faster speeds you will be gaining.

My new small block will be here today and I am sitting here second guessing myself! :confused:

Re: Who runs a 20' or smaller boat?
 

I've got a 88 Baja 196 Sport.

It's way slower than Plumb Crazy's though :D

Re: Who runs a 20' or smaller boat?
 

J,

She should run 70 - 72ish all day long.. Torque will be a factor, tabs may be needed... Still a very cool boat, and yes, I still have your HIN, i'll send that info to ya one day :)