36' speed to horsepower ratio

[baywatch]

What is the general rule of thumb on a 36' apache with respect to power and speed.

I know that with twin 502 Efi's i can get 65 mph out of her consistantly but what will it take to go:



70mph

75mph

80mph, etc?



I am just dreaming at this point but I like to plan projects well in advance. I saw a nice 525efi package in the classifieds with XR's but then got to thinking that with my heavy bucket an extra few hundred horsepower will barely get me over 70mph.

I appreciate your thoughts...

[Hessdk]

baywatch, I had a '94 36' with 575 HP Eickerts, and it ran about 78-79 MPH. Twin EFI 525HP's in an older 36' should run close to 75 MPH. I imagine twin 700's would get you 85 MPH.

[Panther]

mid/upper 80's w/ 800's...... should be running low 90's but the X is deep.

With 700 hp I ran 81.

[mikebrls]

Originally Posted by Panther

mid/upper 80's w/ 800's...... should be running low 90's but the X is deep.

With 700 hp I ran 81.

tony montana has 575 merc's and i think he run's low to mid 70's

[baywatch]

Thanks guys..

[Queenie]

RHC had 600scs and bravos and think he ran upper 70s with that stock setup.

[el indio]

Originally Posted by baywatch

What is the general rule of thumb on a 36' apache with respect to power and speed.

I know that with twin 502 Efi's i can get 65 mph out of her consistantly but what will it take to go:



70mph

75mph

80mph, etc?



I am just dreaming at this point but I like to plan projects well in advance. I saw a nice 525efi package in the classifieds with XR's but then got to thinking that with my heavy bucket an extra few hundred horsepower will barely get me over 70mph.

I appreciate your thoughts...

you must know how much your boat weighs to figure this out....the weights vary..as do the 41s.....8500 to 14,000lbs wet are 2 that i know of.....there is a formula that bob uses.........m.m.....p.s..its not how fast it runs....its how long it runs fast.....cya....

[baywatch]

I didn't realize the 36's varied that much like the 41's. I will hit the cat scale next time I have it on the trailer. I do know that my 12,000lb poly lifts it with a full tank of fuel.

indio, I like your last phrase and that is part of the reason I haven't messed with anything yet is because the stock 502's are very reliable, easy to maintain, and are really easy on the fuel.

[Panther]

baywatch,

Bobby told me that most of them weigh between 9500 and 10500 DRY.

[fast fun 2]

We had 700 a side in one with 3 drives and it would touch 83-84 on the speedo.