Hi Tom,
I have not ever been in any boat that goes 90+ but I'm hoping for a ride with Jcap or ZZ this coming summer.
Jcap would be the best source as he races his boat at 90mph...
Fasteddie would also have some great info for you; he races F1 in the low 80s...
Good Luck!

Pat,
"Media Master" a 30 Tempest did in the ballpark of 105mph.

Rick

And what kind of drive did Media master have? Yes it was a #5. X dimension ? Even with the bottom. Type of bottom ? Y2K . RPM range ? Im sure not 5500.More like 7000.

It's all good howerver he does it. But the more info people provide the more better off we all are in our quest for speed.

Decissions decissions. I'm still woking on my engine package. GT marine says he will completely rig the boat with a naturally asperated 650hp engine, gimble and Imco or Teage drive for $38000. Not where I want to be yet but close. I'm still trying to get a rigging price from Whipple and Arizona Speed and marine for the 496mag completely beefed up supercharged with 700+ hp, but I think it's gonna be about the same as the GT marine engine.

Hey Faster,
From what I have read and heard, the 496 base engine is only good for about 600HP.
Cast crank, cast pistons,... If your goal is more than 600HP then go with a 502 or 540 from the start.
MRD is right around the corner from Superboat. They can build you anything you want. There are alot of good engine builders in these parts.
Then JC can rig it for you at the factory and the rest of us could get a chance to drool all over it...
Talk to Jcap; He is running a 650-700HP/509cube MRD blower motor hooked to an XR drive. If you are not going to race it like Jcap does, then the XR should hold up. And I would hope less than 38K...
Zuperboat and tripps can also hook you up with other good engine builders on LI.

Some of the locals are running 557,s with PSI blower and making over 1000hp on pump gas.MRD has the old media master boat in the shop now and that motor makes over 1300.MRD could rig the entire boat for you.Any superboat that went fast went thru there shop.Skip at MRD has been very good to me with parts and knowledge and I would recommend them highly.

That's great guys. I'll contact them. The concern I have is not being able to see the guy who built my engine when i have problems. My good friend had problems in the past when we were out of town and the head gasket blew and the shop he had to take it to so we save the weekend talks bad about the engine and wants to do more than fix the problem because he says it's not done the way he would do it. We're talkin big $$ here. I hope you understand what I'm talking about. Every good builder has his own ways of extracting HP from an engine.