Outboard Top Speed World Record 200 mph Attempt

[Capt.Insane-o]

It would take a highly modified f1 type boat with almost all the lift taken out and a bottom made to run flat as a pancake with a rudder installed. I can't imagine the amount of prop testing involved, and testing leads to a lot of broken parts.

[Trimmed Out15]

https://youtu.be/Cs_fIMcw2IE

Sorry it's not in English but the passes are incredible

[oldschoolltv]

Just curious the F1 boat did it record a speed of 160 through the kilo or was it just a brief top speed? Watching the record boat run, that is a long time for things to go wrong.

[FrenchPhil]

That was a Kilo record from Guido.

[Onetime]

Incredible water conditions in that video.

[H2OPERF]

That's an awesome vid have watched it over and over in the past...With all the readily available accelerometer and cheap gyro systems we have these days it seems feasible that you could employ some sort of tunnel vent system and/or canard for pitch stabilization to get the most out of a tunnel for kilo type runs and make it markedly safer...

[Spectre Powerboats]

Don't know what you mean by "Credentials Please" but if an F1 race boat can do 160 with a 2.5 Merc, why can't the same boat do 10+ more mph with a 600hp V8? At that speed nothing can be truly safe and I never said anything about safety. jmo, no need to bash! As for mods I was thinking something that would make it pack a little less air.

Sorry, I will ask the question a different way. What is your boat racing background? I build F1's, so I am always excited when people offer advise on modifying one. The boat I built for Terry Rinker that he swept the series with, had 3/4" of lift in it.

Guido Cappellini spent about 1 million dollars to to do that with his F1. That was straight from his mouth to my ears. That was everything from the Special built boat, special motors, props, crew, testing, the cost of the event and so on.

So when someone says lets take a F1 and throw a V-8 on it, it is a lot more involved than that.

I have been a part of a lot of record settings. If it was easy, it would have been done by now. To give you an idea of how difficult it is. Jon Wright use to rip my butt back in the mid 90's, when he knew I was out on a lake with my 18' Pugh Hydro and one of his built motors on it making top speed runs. I can not remember if we broke 160 or not, but it was the scariest ride of my life and I use to race 200 mph Top alcohol Hydro's and Funny Cars. Those were a walk in the park compared to that little outboard. I will dig up some of the old videos. They are on VHS, so I will have to convert them.

[Spectre Powerboats]

https://youtu.be/Cs_fIMcw2IE

Sorry it's not in English but the passes are incredible

There you go. That is Guido and he is one of the best drivers in the world. That boat is running on a fine line and Guido told me, it was done, any faster and it was all over.

[RBT]

The guido run was done with a UiM legal 2.5, more power is avaliable out of that platform. It’s an impressive number considering the rule constraints. I was told he exited the traps at 171, for the 160 mph kilo.
A few thoughts I had, one being a hydro is immediately 10-15 mph faster than the uim f1 boat. Two safety isn’t as much of a concern as it once was, fuel boats crash in the mid 250’s with remarkable results. Third, regardless of your thoughts on the Twisted design the one that I thought was strangest was the choice of a tube chassis with a skin. Water pressure at 100 mph is 147 psi, yet at 200 mph it is 588 psi, unless considerable protection was added around that frame it (and I don’t know the answer) it would amount to a cheese grater.

[Chaz]

Gordon was never going to be the wheel man . Like everything else he builds , he takes it to Canal X breaks it in steps on it a few times . Other than that either of the two guy guys he trusts are 5 hrs away . One of them went thru the same cervical operation I had . It's no fun , so if you have been thru the dirt bike , go-cart , dragbike , fast boat thing , and are 50 + chances are you might have some bulging disc issue's too ..

The other guy came down , drove the boat . They planned the next moves.

No one plans to die . The boat owner passed away along with it two or three other jobs in my shop alone that all had #1 priority attached to them . I never saw any stop signs .

Maybe its the lack of understanding of over simplefied terminology .

Putting pants on the beams ... instant hydro



It didn't float to well with the little guys …



The big ones are probably a little too big .. but like I said they were meant to keep it off the bottom . But they should give the tunnel guys something to be happy about .



BTW … We aint skeerd of no key-yakkz ….

Maybe for some the galvanize poisioning is getting to them from sitting on the rail watching for so long . Sorry some of you were not impressed . This is a long thread dating back quite a ways . Only two boat were ever mentioned being built . Did I miss something ???

Gweed's 256.2 = 159.195 mph Fast no doubt . Could it go 177 without developing any bad handling traits ??
Look at the guys we lost over the last couple of years . Same boats they were use to running . Found some power from one run to the next .
Look at Dixon's 151 run … had enough nitrous for "one more run" No-No .. that's enough .. What if he had one more fresh bottle and a one more prop to try . Can a STV go 155 ?? Would you bet your life on it ?????
Todd has some of those Formula boats , molds to build cats that will fit in your bathtub to hang from the sidewalk into your neighbors yard .. and I believe he said if he was to try and crack 200 with a single outboard , it would be with an outrigger . Must be something to it ..

[Chaz]

The guido run was done with a UiM legal 2.5, more power is avaliable out of that platform. It’s an impressive number considering the rule constraints. I was told he exited the traps at 171, for the 160 mph kilo.
A few thoughts I had, one being a hydro is immediately 10-15 mph faster than the uim f1 boat. Two safety isn’t as much of a concern as it once was, fuel boats crash in the mid 250’s with remarkable results. Third, regardless of your thoughts on the Twisted design the one that I thought was strangest was the choice of a tube chassis with a skin. Water pressure at 100 mph is 147 psi, yet at 200 mph it is 588 psi, unless considerable protection was added around that frame it (and I don’t know the answer) it would amount to a cheese grater.

Then do your "bellyflop" math @ 250 mph because that's how T/F boats are/were built at the time of Twisted's construction ..

[OLEGATOR]

in 25 years of boat racing, and setting numerous kilo and competition records, the only thing that ever scared me was kilo runs. when you are on the ragged edge, that kilo seems like it 10 miles long. i got a lot more enjoyment out of beating 11 other drivers of equal talent at the same game at the same time with the same conditions.

[RBT]

Then do your "bellyflop" math @ 250 mph because that's how T/F boats are/were built at the time of Twisted's construction ..

918.75 psi at 250, they don’t really consider weight an issue. What covered the chassis on twisted?
I asked a question to which I stated I didn’t know the answer.

[D.E.]

I typically stay away from here even considering the amount of bashing I have taken on this thread but like to set a few things straight. Yes I built the hull and gave Chaz guidelines for the frame at Ricks request. Everything was done at Ricks request and he was paying the bill so he had the say. That capsule shell met the 5000 lb neuton test and the frame was built chromoly spec what we put in a drag boat. The sponsons and setup were extremely conservative and the boat was a pig at slow speeds but would be stable and safe over 180mph. It could have had sponson built more like the drag boats we built for short distances and it would have been light on it's feet at 100mph but that's not what it was built for. Rick already had plans to change the front sponsons if needed. No one here knew what was going on except the guys involved and getting the boat setup to go straight and true was priority and going fast was slowing happening. Hope he won't mind I'll quote Gordon "we know it will go 120mph". This was with a mild tune up no bottle crap, small gear , small props. I know there were bigger gears, props and motor left. Next goal was 150 mph and then Rick's passing, no budget parked there effert long before deemed a failure. Would it break a record, maybe, maybe not but the effort those guys put in was huge. I would love to have the boat back(both boats) and would do something myself with it but I am not in that position so I'll just sit back and watch all the experts here tell us how to do it from there computer meanwhile some have actually tried!

[woodbender]

Never said anything about safety. Throw safety out the window and hang the same horsepower motor on the back of whatever boat you want.....which hull design is going to be the fastest in perfect water conditions?

Here is your video of the run (does this look like "the most dagerous boat you could use to try for this record"):
http://www.guidocappellini.com/Guido....php?lingua=uk

Not sure about someone who is not concerned about safety. I saw a lot of pictures but no video in your link. I have built racing Tunnels for 35+ years from wood and glass and the picture showed a typical Tunnel boat running with the nose up and tail down. That is the way they all run. Would you drive that 170=180mph. I doubt it..