I run mine at 85 all the time...........




On my trailer behind my expedition..

Lol

I had a 94 272 shooter. I put a 500 Efi and a M3sc pro charger on it. It would run 85 all day long.

When my 272 had a estimated 750 to 800 hp it ran mid 80s, when it had 950 hp (on dyno w no accessories and J607 CF) it ran 92ish running light and 89ish loaded down. A customer had a open bow 272 w what was supposed to be bi cu inch na motor at 750 hp and i clocked him along side st 82 gps. I never blueprinted my hull but did rerig boat for stellings box (slowed boat down and porpoised), also tried imco -2 shorty, boat couldnt get past mid 90s with full kill setup that normally ran 99.5mph plus tried to swap ends. At 85 with ful hyd twin ram steering and big tabs boat was pretty solid feeling for its size. If you got into criss cross chop you had to try to hit it square or back off, fwiw

Are you guys with the big power running stock Bravos or did you have to step it up? I've got a Vortech Race unit but reluctant to put it on with the stock Bravo. I know it's a grey area and every boat reacts differently, so I'm just curious how the stock unit has fared under this hull with power to it.

A stock Bravo will not survive 850 hp.

10,000$ upgraded Max Machine worx drive is what I ran, back in 02/03 there werent scx's available, bmaxes had issues, at 1100 hp I broke it about every 20-30 hours with 32 pitch, with 30 pitch at 1050 hp drive went about 40-60 hours between failures, I also tore mine down every 30 hours or so and changed parts that were on verge of failure before catastrophic stuff happened. At 850 hp expect to be in stock xr every 50 hours or so , fwiw
I sheared off a number of max worx billet shafts too but again, had over 1000 hp and 1000 ft lbs of tq
IF you decide to go big power budget for upgraded drive, twin ram full hyd steering, better engine coupler, bigger oil cooler etc

Ill tell you this too, when I first installed blower on 502 and was making about 600-650 hp I had the stock 2000 drive with weak floored gears, with 26 pitch prop I hole shot-ted boat all the time, beat on it unmercifully, never broke the drive for over 100 hours (boat ran 75/76 like this). I upped boost, went to 28 pitch and added lightning headers, boat ran 78-80 ish, broke drive first time out with that set up

Not really. You have a big, heavy single boat that you are thinking about putting big power behind.

Sounds about right, lol. Thanks for the input.

Trying to keep it under 650hp as that seems to be when $hit gets real. From what I can tell the process is to add power, blow up existing drive, and just keep upgrading the drive until it quits blowing up. I was thinking of trying a B1X and go from there.

It currently has a 3"x18" oil cooler w/#12 lines, the HP coupler, forged internals, and still sorting out the fuel system though.