100mph
 

The age old question.
I have a customer with a new konrad and a 06 y2k. The big 100mph question is back.Has anybody been there and what would it take with the konrad drive?Looking for sugestions:D

10 71 blower:grinser010::grinser010::grinser010: tripps

The MDG boat runs/ran 92-94mph with 800HP and Konrad.

A speedmaster and 840HP should get you 102.5 on a good day. Konrad I would say 950hp.

Hey Zup, Are you finally spilling the beans?:evilb:

pi75, I was not aware of any Y2K leaving the Superboat rigging Dept. with a Konrad ???

I think a Konrad is going to go on that y2k that will eventually wind up in California

Your correct, but that Y2K has been sitting in COENS shop for 3 years:eek:

Yeah Pat. Mike broke the 100 mark. Had 2 GPS's on board. I think 1 read 101.8 and the other read 102.5 or .7 not sure. But he did it.

Correct !!

Hats off to Mike, 102.5 !!!!!!:grinser010:( My new Hero ) !!!!!

My y2k has run close to 95 light on fuel on a good day,with 800 na hp and konrad,I think with a supercharged engine making 850-875 would easily hit 100,the reason i am thinking this is my 800na motor makes about775tq while a blower engine making 850hp usually makes the same amount of tq,also i have only tried a couple of props on my boat,might be a little left,also i would like to try and raise propshaft up(konrad has a prototype drive 1 shorter than my unit)the reason i think this might help is when I installed a 1 spacer boat lost 5-6mph.The y2k runs great with the konrad and could easily run 100 with reliable power

It didn't I orderd it blank.Sold it, and the original owner never rigged it.To my suprise its still around and the new owner wants to go ahead with it.:evilb:

Yes Rick, Mike shared with me around the time of the CT River Run. Vary impressive numbers for sure!

Good info,thanks
How hi did you mount the drive? I wonder if the new bottom reacts differently with drive height

Everybody has a good day once and a while. Going from 90 to 100 is not the same as 75 to 85. You mite need 100hp more to go from 75-85 but 150hp to go from 90-95. The faster you go the harder it is to make that number. MDG has done the most testing with the konrad. He has the answers on that setup.

Is this one of the boats we shipped to Canada ?

My boat is 2007 with the new hull design,my propshaft is 2 below bottom,I am running the ace set up with the x factor lower,runs perfect we boat in the cheasapeake bay which is most of the time rough so all out top speed not that important,my engine is na just making 800hp at around 6000,peak torque around 775,the new bottom is very efficient and i am sure it would pick up some speed with some more hp and torque

I wonder how MDG,s konrad boat stacks up to Gary,s bravo Superbaby? Both have 800hp. MDG,s top speed of 94 at 6000rpm rite / wrong ? And Gary,s top speed of 94 at Im guessing 5500 rite / wrong ? Lets get the prop slip numbers for both and see how good both setups are !!

Yes it is, the old owners had an all alluminum ford BB for it but
it never got finnished.I will hopefully see it in the next 2 weeks
and see what is there and what is not and go from there.

Hey Zup, you are being way too modest. You've got the Zuperboat dialed in and she's probably the best running Superboat in existence today. It only took you about 8 years...:lolhit:

Superbabi vs. MDG is not only Bravo vs. Konrad but older hull vs. newer hull... :drink:

Mike, yes 5500 rpm's. on the Ron Potter Motor. Pat, I would guess an 800 on the newer bottom would be in 95-96 range with the XR.

Gary spinning a 32p at 5500 with a 1.5 gear and 94mph gives you a slip of 15% Spinning a 30p at 5500 gives you a slip of 10%

Mike, we played with a merc. maxiums 5 blade 32 cut down, more like a 31. That hull likes the odd sized props, with the 600 sci it was a maximus 5 blade
28 cut to a 27. So I guess the slip is at 13%.

My set up spins a 29 p5x hydromotive lab finish,94 at 6000rpm,i have also run a bravo 1 31 labbed 92 at around 5700-5800,one thing that i have noticed is that boat picks up rpm and speed with a lot of trim,doesn't seam to lift the bow much more but seems to losen up prop,most step hull v bottoms reach top speed at very little positive trim,was thinking if drive was a little higher might losen up prop a little.Was also thinking a 5blade herring might be nice prop on this set-up.Also another big factor is weight,mine has the race lay-up not sure if any lighter,not sure on garys hull,zuperboat hull i heard was built super light and has always run real fast

Slip with the 29 is 14 % and the 31 is 17% . Good slip numbers mite not be the fastest top end. Go figure.

And from the other post:
Gary spinning a 32p at 5500 with a 1.5 gear and 94mph gives you a slip of 15% Spinning a 30p at 5500 gives you a slip of 10%


Hey Zup,
How's my slow boat doing?
68mph at 4600rpm with a 26p...:lolhit:

Well, my last run in Oct was 84 mph. 775 hp, 29 L hydro, 5600 rpm. 3 guys, less than 1/2 fuel

Last year we hit 90, same prop @ 5900 rpm, no fuel and 2 guys

Same water conditions

Pat Velocity hulls usually have good slip numbers. Its the pad. You numbers for 4600/26p/1.5gear/68mph give you a slip of 9.9% . Great number. PE ,s 5600/29p/1.5/84mph = 18% 5900/29p/1.5/90mph=16% Gary,s boat going from 15% to 10% at the same rpm with less pitch could be from different prop designs/ diameters and number of blades. My boat with a 5 blade had great slip great grip but slower top end. Like Pat said earlier Ive been messing with my boat for 8 years. Ive give all the credit to Skip over at MRD. I should have just dropped off the boat their 7 years ago and I could have saved alot of time.

Mike, remember Rick Blueprinted the Superbabi bottom, how do you think slip numbers play into that ???

Yup skip over at mrd knows his stuff,I send him all of my speedmaster work great work,has anyone heard anything on the turbine boat i know it was over at mrd being rigged and tested

Dont know much about blueprinting bottoms Gary. Ive heard mixed reveiws on that. I do remember Cappie telling me he had his bottom done 3 times with no results at all. I think Supers like alittle rocker in the bottom to help them fly. Skip is the only reason I have a speedmaster. I bought a bravo upper years ago from some drive shop in Cali who was to be the best. I paid good money for it, decided to open it before installing and turnes out it was missing the bearing race in the top cap. How do you forget that !!!! Trust me they paid me for that one.

Mike, what numbers was cappie getting with his Y2K ??:grinser010:

The last time I saw Jim was at the 2006 CT River Run.
He had backed off on the boost and was topping out in the mid 80s with about 675HP.
He got sick of blowing up Bravo drives with his engine making around 775HP.
With the boost turned up he saw high 80s to low 90s.
Not only had he blueprinted the bottom of his boat but he had also added on to the lifting strakes.

Thanks Pat, any more big HP Y2K's out there ?? As for the XR I guess I'm lucky, 78 hours this season, no failures.:grinser010:

I remember the strakes. They were called speed rails!! Wonder how Jim is doing these days.

Well,I got a phone call this morning and the guy has changed his mind.He decided to sell the boat instead. I give up.Anybody looking for a blank hull let me know.

How much and where is the boat??