I'd like to no how these guys get the speeds that they do. I have a 1997 Eliminator Daytona 22ft with a 502 built 625hp , Imco 1'' shorty drive 29 pitch Bravo 1 prop 5400 RPMs 94 mph.GPS!!

well i can safely say that my 1995 22 daytona with 509/560hp will run over 100mph an thats do to 100% of a black hawk hull set up an the black hawk drive thes boat strait off the factory floor stock 502/415hp ran92-96mph depending wear you run it merc exsperment dual prop surface drive with only 60 pounds of drag thes 22 wear in a league of ther owen

Even with the outdrive change it still seems like a huge dif . It looks to me that I could get cheap speed by getting a black hawk drive hell I just spent a nother 5000.00 hoping to get to 100MPH. this coming summer.

What is your X dimension with the 1" shorty?

I don't no the numbers I do no I tried a 2" shorty and couldn't grab water so 1" was as short as I could go. Going into a shorty drive from a BRAVO 1 I went from a 26 pitch to a 29 pitch and from 88mph to 94 mph. I just have a hard time with a BLACK HAWK drive doing that much. My buddys and I all have 22 ft Daytona's and DCB'S and we all run 525 HP or better and none of us are at 100mph. I guess we all need to buy BLACK HAWK drive's.

A blackhawk is not going to help you unless it's mounted in your transem at the right height. A blackhawk is 7 inches shorter than a B1 and should be mounted with the center of the prop 3" higher than a B1. You would have to drop your gimbal 3-4 inches to get any advantage from a blackhawk, you'll be talking 8 grand to try it. 94 is very good for 525 horsepower! wanna go faster, ya gotta add some ponys.:drink:

No I run 625 HP last summer at 94 but my AFR heads came in today by the time I'm done this spring I'll get 100mph then I'm done for a few years.

yes he is right about the X dimension i will try an get some pics out my 22 BLACK HAWK x is so hight that even the motor is high in the hull an cause of that it came with an ugly hatch but that hull was for that drive an thats it i all ready tryed the brovo thing on my 22 BH an no go the 22BH also has a diffrent step/cut out in the hull i am just say the short period in time when they wear built they wear fast an when one smokes you with only 500hp you will wish they still made them you would ditch yours an buy one hhahahaha

oh an AFR is a very good choice i have them on a small block blown 718hp i dont know about the BBC AFR heads but i took the springs off an went with the beehive from comp in when doing so i found a few broken keepers brand new heads wright out of the box they wear very cool about an sent new ones you can rev up the beehive spring alittle more

Do you still have the -2 shorty? I would try it with a 1/2" spacer. That would give you a total of -1.5". All tuners go in 1/2" increments and most will tell you they've seen 5 to 8 mph on gps with only 1/2" change in X. It's a cheap speed gain if it works... my 2c :drink:

I just happen to have an extra 1/2" spacer make me an offer:lolhit:

Don't beehive a marine engine!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!!!!!!!!!!!!!!!

You would be amazed. My 25 500efi 1.5 to 1 B1 spinning a 28 ran 83mph wot light.
Bolted on a BH drive 1.5 to 1 spinning labbed 31's and ran 91 same motor.
Unfortunately, my new 900 mblower motor ment removing my BH and going with a shorty SCX / SC combo.

PS, Bravo X drives failed upper gear sets about every 20 to 30 hrs in sloppy water. My BH ran for 160 hrs without failure.

Its freshly rebuilt and will be going up for sale with a et of 31's, wing plate, shower and airaition set up very soon.

dont worry its in a street car just telling you what i found in my afr heads huh my upper was just slopy an worn out extreme custom marine is doing the rebuild i will have to ask about that

http://i870.photobucket.com/albums/a...ilphoto314.jpg this is wear the the BH sits when trimed all the way in

I have a 25 Daytona with a hp500 carb and a Blowershop 250 at 4psi with B1 1.5 4 blade 30 and it runs 90 on gps. Im guessing its close to 600hp

blackhawk
 

Hey Neil, where did you get your wing plate?:drink:

08 27 daytona with 496ho

http://i29.photobucket.com/albums/c2...gto/photo1.jpg

thats how it came from eliminator an how i bought it from the OG owner its a WPM i heard ther not around any more