Outboard Top Speed World Record 200 mph Attempt

[Capt.Insane-o]

After they saw jeff run that hard with an ally they said your done rob your right an stv ran in the low 130's I think bob won king that year in drag racing my dad found the hot boat mag up north at our cabin he is going to bring it back home I thought I lost it rob there is video of the rumble on utube I think

Pretty sure Bill said he was running a 26, I had a really thin 30 and a 32 cleaver in the back of my truck that he could of used, but I think the water conditions deteriorated enough by that point. I can't remember if it was just before or after Jeff, but Dennis went out and ran a 128 that morning.

[Spectre Powerboats]

We will be using a true Mercury or OMC outboard for the record, one motor and one gearcase, but we do have a Richard Childress NASCAR engine

[Capt.Insane-o]

We will be using a true Mercury or OMC outboard for the record, one motor and one gearcase, but we do have a Richard Childress NASCAR engine

Put that ****er in the tow vehicle

[Instigator]

Pretty sure Bill said he was running a 26, I had a really thin 30 and a 32 cleaver in the back of my truck that he could of used, but I think the water conditions deteriorated enough by that point. I can't remember if it was just before or after Jeff, but Dennis went out and ran a 128 that morning.

I think you're right on the 26. I was down there when he came in asking for a different prop. I think he went back out and went slower though.
Remember too, we gave them a GPS and they only had 15 mins to put up a #.

Michael, Bob Alby was King of the Rumble one yr but I'm note sure it was that one. He ended up 2nd or 3rd in the drags and GPS runs which gave hime enough points to be king. I think that year G-Train won the top end runs w/a 116 or 118.
I have the Hot Boat story scanned and saved.

BTW, 26" @ 126 x .08% slip = 9577

[motorheadbishop]

I think you're right on the 26. I was down there when he came in asking for a different prop. I think he went back out and went slower though.
Remember too, we gave them a GPS and they only had 15 mins to put up a #.

Michael, Bob Alby was King of the Rumble one yr but I'm note sure it was that one. He ended up 2nd or 3rd in the drags and GPS runs which gave hime enough points to be king. I think that year G-Train won the top end runs w/a 116 or 118.
I have the Hot Boat story scanned and saved.

BTW, 26" @ 126 x .08% slip = 9577

Gary actually its probley more like 8.0% which put the rpms @ 10400rpms with a 26....
Wow talkin bout Holden it to the wood... That's one heck of a motor!

[baja200merk]

My prop calculator changes 8.0 or 8 to .08 no matter how you type it in.

[Instigator]

Gary actually its probley more like 8.0% which put the rpms @ 10400rpms with a 26....
Wow talkin bout Holden it to the wood... That's one heck of a motor!

You are correct. Had to use a different one than I am used to. It does as Kevin posted. I thought the R's were way low for a 26 @ that speed.

http://www.mercuryracing.com/propell...calculator.php

<input name="pitch" size="3" type="text">	<input name="ratio" size="4" type="text">	<input name="rpm" size="6" type="text">	<input name="speed" size="5" type="text">	<input name="slip" size="2" type="text"> %

[Chaz]

G-money ,
I left my glasses in the shop .. Could you please read back to me the web site where you found the prop calculator ..

[1BadAction]

Was he using a 1.78 XR6 case when he ran that? Or a 1.87 full size case? XR6 would be something like 9600rpm and 5% slip.

I left my glasses in the shop .. Could you please read back to me the web site where you found the prop calculator ..

lmao

[powerabout]

did you use a metric or imperial rpm..lol

[Capt.Insane-o]

Almost positive it was an xr6, ax Jeff. Anyhoo...

After all the super motor top end stuff is done on the out rigger it'd be interesting to see how stock some new stock greenie powerheads do.

[Instigator]

Was he using a 1.78 XR6 case when he ran that? Or a 1.87 full size case? XR6 would be something like 9600rpm and 5% slip.



lmao

I don't remember. They could have been running any gears they wanted too. Remember, I've put 1.62's in two different 2.5 Sporty's.

Chaz, you funny

[afr]

gary /bob and dave,s boat was over driven ssm with a prop speed of 20,000 rpm +

[Hoss Marine Propellers]

.......... a prop speed of 20,000 rpm +

20,000 rpm seems somewhat unrealistic????
If you turn the engine 10,000 rpm and overdrive it 2:1..... just doesn't seem right to me?

[Spectre Powerboats]

Took a lot of pictures tonight and then realized I left the cord at work to download them to my computer. Will post them tomorrow.