Thats money well spent!!!:cool:

It really is, and without alot of B.S.:cool:

Ran boat today
 

Did 1500 RPM bores out of my skull- I bought a used hydro-hoist and spent 2.5 hours towing it by water to my marina!! that sucked but the hoist is nice- Real pain in the butt..

Cosmic I think you are doughting my #'s-I thought a 525 is under rated so most likely it is 540hp

I don't dought your #s at all,I think it is great that you can pick up that much speed that easely. And I know the boat will take it and more. I am very happy for you .:cool:

I can vouch for the 10 MPH increase. I swapped my 502/415 for a 525 EFI last fall and saw the same increase in a 26' Sonic Prowler. I actually saw an 11 MPH increase and I'm still not done with props! Steve

26 sonic
 

I had a deal fall through on a 26 prowler which led to my A/T 525 is a nice engine for the 26-boat must move!

509, what speeds are you getting and does the screen name mean that you have a supercharged 509 in the boat now? So...what is the actual HP of a 525? 500 or 525 or....

So if I was going to build a new bullet for my 25 AT and it runs 70 now.......with a 415 w/gil exhaust and a K&N filter, its all in the X and the prop, if I get 500-525 HP I can run close to if not 80?:cool: :D

R I would think you would be getting there or more. Can you say LITE!!!!! I can't imagine there would be much of the hull in the water at those speeds, you might want to think about longer tabs:evilb:

That would be nice haven a 525 in my tantrum.......maybe if I ever sell the stingray I could go blue:cool:

Cos, I'm doing an external hydraulic steering this year and finish it off next year with the full to the helm. I've always toyed with the idea of building a nice 500 horse motor for the Tantrum. The 1st Tantrum we saw was the Smith Bros. Racing Tantrum and it had a HP500 carbed motor in it. It ran high seventies to a low 80 depending on conditions....It had a full cabin sans the sink like mine. So I'm figureing......500-525HP....80mph!!

And about the tabs....I have the wide K-planes...and you know what they say....."If your not running on the edge, your taking up too much space":D