Hot Shot Merc I see your point but that site has a LOT more good performance info than just pipes. Just my .02 Gary
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Hot Shot Merc I see your point but that site has a LOT more good performance info than just pipes. Just my .02 Gary
No pipes here. I have a couple complete S3000's before I bought Jon and Gina Wright's equipment. I also purchased Evinrude V8's to have in the arsenal. With the addition of Jon's equipment we now have an exciting batch of motor options. We plan on using NOS on some of the motors, Jon's turbo motor and we want to try and put a Whipple supercharger on one. I have good knowledge of NOS and supercharging, but the turbo will be pretty new to us, but lucky for me I have some big turbo guys in my area to help, plus I figure there are a few people on here that will be willing to help. I can not get pictures to post to S&F from my computer. Any help would be appreciated on uploading pics.
I don`t know jack #%&* about expantion pipes and even less about two strokes with turbo`s but i`m excited to see someone willing to attempt the turbo deal. Did Mr Wright get the turbo to work?I`ve read about all of the threads disscussing them but no actual testing. I even heard about some sand drag buggie with a two stroke/turbo package but no info. I spotted a Merc powerhead with a 6-71 blower sitting on the floor in Wayne Taylors shop several years ago and asked him how it did. He said it was a wast of time. Said it hit hard for about one second untill the boost depleted because of open ports and then it became a normal motor. He said the blower people told him that it could not ever produce enough boost no matter how much he over drove it. Maybe turbo`s can be made to work. I`m optimistic.
DB
Aw **** here we go!
So has anyone thought about how they are going to address the cockpit rules for a boat running a speed of over 150MPH on a kilo run???.... you are chasing an outboard record held by the guy who has just changed the rules to make it impossible for a cockpit to be passed for a kilo run of over a speed of 150 MPH
KW spelt out the new UIM rules... in this thread.....he too is an engineer ..We at Warby Motorsport and other unlimited water speed record challengers now believe this is a complete farce.... what engineer in the right mind will sign off that that list of crap??... a well-respected engineer from Britain just wrote a paper spelling it out that these rules are completely untenable
We have been looking into these new rules and now have some more info on howthe UIM "Safety committee" work..........and is led by Bob Wartinger,These rules apply to boats with a class speed over 150 MPH at a kilo event, so one boat on the water at a time, ...... when questioned on if this rule applies to boats that travel over 150 MPH ( class speed) in a circuit race, where thereis up to 10 boats running side by side at over 150 MPH, with water conditions changing every lap, the "Safety committee leader" said that basically they didn't discuss that......???????...... Now this is all in the name of"safety" for the sport, and these guys didn't consider this aspect of racing!!!!..... this is an absolute farce....and this proves it,... remember this is the "Safety guy" of the sport’s world governing body
so why wasn't the part of circuit racing considered??...... well to protect their event promoter's firstly, as this would take a huge amount of boats offthe water, as none would meet the new rules, so what business would a promoter get with no boats at a UIM event. Plus these rules would upset a huge amount of racers who race circuits, only a minor amount ever do kilo's, But it would appear you can run as the rules are now at over 150 MPH with 9 other guys next to you at the same speed, but.....BUT you will need a newly engineered cockpit to do the same thing if you intend to run alone ( solo) for a kilo run on good water, this cockpit needs to be sent in for engineering analysis from a multitude of potential crash angles, and has to be predicable in the way it crashes
This "safety guy" still has not made any official notification to any wwsr challenger.....so we are building away and spending time and money to set a new wwsr, building to the rules, and the "safety" guy has a brain snap on the rules, puts them thru without contacting the people it immediately affects, who are spending away thinking all is well...
Now we and other challengers have spoken to this guy on the phone, and get hours of beautifully worded motivational speak (as this is his job to go worldwide to give motivational speeches to businesses and on safety) but he fails to answer some very simple questions regarding the rules,.... How can this guy hold a position on a sports world governing body with the actions stated above??......basic skills such as communication... consultation, etc and is happy to waste other peoples time and money,
We have had some correspondence from some very well respected engineers in both record breaking, aerospace and legendary boat builders from the world powerboating who believe these new rules for both the wsr and kilo boats that run over 150 MPH are completely nuts !!!!... and are wondering why this"safety guy" is doing this...hmmmmm
Motorsportsis dangerous, we all know that, but we have built a cockpit that is aregistered UIM approved cockpit ( Warby Motorsport is an approved cockpit manufacturer) the current rules states the shell must handle a 3000nm impact and tested accordingly, ours was built and tested to take a 5000nm impact, so we are not taking any short cuts in the area of safety … but when goal posts grow legs overnight and move you have to wonder what their REAL motive is….<o:p
Remember... KW's last wsr boat was banned due to cockpit rule changes over night back in 2004..... and 6 months before the UIM meeting.......
sadly the UIM doesn’t have the decency to consult the guy who has designed, built and driven a boat at speeds over 300 MPH on water,current water speed record holder etc plus holds 2 UIM gold medals….. ( only he and rules guy Wartinger have ever received 2), they just love wasting his time and money again and again
</o
Dave
Warby Motorsport
Wow. Very interesting Dave. Thanks for the insight and I feel terrible for the frustration for you and the old man.
On the subject of force fed two strokes, lets not forget Rick Gillmans blown (GM 6-71) V-8 JohnRude of 10 or so yrs ago.
I don't see how a supercharged 2 stroke could ever work, unless the port timing was drastically and unconventionally modified. With the exhaust port being the last thing to close, there's no way to trap the boost. Expansion chambers, though, are well understood, tested, been around for decades, and offer a huge gain in power without a lot of complication.
The thought would be overdriving the Whipple a ridiculous amount, a two speed on the Whipple (this has been done before), a custom intake cooler and intake that would be preloaded with a certain psi through out the run, lots of dyno time. Sound good on paper :smiletest:, but this is the basic thought. Have not even started this project yet. The NOS motors are the main focus, the turbo second and the Whipple third. Whether it is a Mercury, a V-6 or V-8 Evinrude, it will have a power adder from day one.Quote:
Originally Posted by engineermike
100% agreed and every example (that I know of) to date has proven this.Quote:
Originally Posted by engineermike
Bob Thompson of Just Add Water fame proved it could be done over 40 years ago with V-4 and later V-6 OMC's.
Quote:
Originally Posted by engineermike
If you can not trap the boost, then why does a turbocharger seem to work? Isn't it the same concept of forcing more air/fuel into the combustion chamber than could normally be drawn thru the engine? Mechanical force with blower or exhaust force with turbo ?Quote:
Originally Posted by Instigator
http://www.screamandfly.com/entry.ph...h-Turbocharger
If you wrap those photobucket links in bracketed IMG tags, it will insert the image into your posts, like this:
http://i1031.photobucket.com/albums/...%20Boat/19.jpg
http://i1031.photobucket.com/albums/...%20Boat/21.jpg
http://i1031.photobucket.com/albums/...20Boat/029.jpg
http://i1031.photobucket.com/albums/...20Boat/019.jpg