Re: prop survey
 

RICK ,YOU LOOK FOR THE STAMPED #S ON THE UPPER HALF OF THE O/D IT MAY UNDERA DECAL.IDONT REMEMBER THE CODE S BUT I BELEAVE YOU SHOULD HAVE A 1;84/1 RATIO WITH A 4CYL, ITS BEEN A WHILE AN I MITE BE OFF ON THAT

Re: prop survey
 

As far as where to find a prop...look on the shoals CB drives MJ's V20 over... :o ::)...sorry CB...couldn't resist... :)...

Re: prop survey
 

They's junk when I get done with them. Don't bother looking there. ;) ;D

Re: prop survey
 

http://www.rbbi.com/folders/prop/propcalc.htm

two 140hp 1990 OMC. 14.5 x 24 CR 55mph @ 6200rpm (WOT) Flat seas, 40g fuel, just me on board.

Can do a lot better going with that screaming tide through the Galveston ship channel. I have clocked 70 on the gps with the tide and a 25mph wind at my back.

Re: prop survey
 

OK, one more question - Current prop is 13" diameter, how does increasing the diameter to 15" - 15.5" as RP suggests affect performance? I've done a little research on the web and there seems to be much discussion about the affects of pitch but very little on diameter.

Rick

Re: prop survey
 

Havis - What's you range with those two piglets sucking down on a 40?

I thought 40mph on my v20 was flying . . . the bow flare grows wings after that speed.

Re: prop survey
 

I have 88 gallon total capacity and get about 2+mpg at 4000 rpm/35ish mph cruise. I don't have a real handle on fuel consumption: I haven't been out enough with real good numbers to work with. My goal is to be able to go 60 miles offshore. Those engines sure are thirsty, I was hoping for 3+ mpg but I don't think I'm there.

Re: prop survey
 

Havis - One Merc blackmax 200 or Yamaha 200 . . . will get you about 3mpg cruise @ 30/31mph.

If you run a Yamaha T series four stroke kicker or even a OMC sailmaster with a barge prop then you could hit tuna Trolling speed.

The nice part about your setup is that you can easily plane home on one engine and those OMC engines are pretty damn reliable.

Re: prop survey
 

I was out the other day about 70 miles trolling for fishes on a 31' CC sportfisher with twin 225 yammys and one spun a prop. Had to plow back 70 miles. It nearly ran us out of gas and too a l-o-n-g time. One engine just would not get her up on a plane.

I guess 2mph ain't too bad if a single 200 gets 3. I hope the engines last forever: so far, so good. Mixing the oil is a pain though but everyone says don't hook back up the VRO oiler.

Wow this is off topic! :~)

Re: prop survey
 

Screw the topic... ;D...that's one thing that makes this board so GREAT...the threads go where they go... ;)...

Mixing the oil?...do you have one of the Accu-Mix bottles...makes mixin' a piece of cake!!...$3.99...other name-brands work as well...