I always liked the lines of that boat. Sweet project.

BTW, yes, by bottom condition I did refer to paint, nics, hook ect.

AO Razor, Ive been told to test a 19 &21 mirage plus. Just curious why you say a 21 will not work.

Matt

Matt.

Because you would have to run 58-60+ mph for that to work. Was that Brett @ Bblades who suggested the 21"??? Not to be down on your boat, but you'd need a 454/385 minimum to even begin seeing those numbers on a regular basis.

Here's some figures with your drive ratio and rpm rating with a 21" prop.

At 5000+/- rpms which is at the top of your rpm range.

10% slip = 61 mph, 12% slip = 60 mph, 14% slip = 59 mph and 16% slip = 58 mph.

And at 4800+/- rpms, which is at the bottom of your rpm range.

10% slip = 58 mph, 12% slip = 57 mph, 14 % slip = 56 mph and 16 % = 55 mph.

Deffinetly start with the 19". If you look in one of the previous posts, there is one with a 454 and 350 hp running 56 as best number.Therefore I'd say he runs 54+ on average with the B1 4 blade. Yes the BBC weighs more than your SBC, but the heavy Formula likes the torque of the BBC.

Anders

Rossman that looks great, hope to see it at the islands

oh6662b....you will see me.....every weekend over ther...lol

Hi Rossman

How is the testing coming along?

Wish I had something to report, not testing till next month. My cabin is being gutted and redone at this time. I will keep you informed....its a wee bit chilly on ol lake erie