Now we're cookin'...

[StevePond]

Spent Saturday down at the shop seeing what we could stuff into what, and think this is the set-up that could take the win. What do you think of this prototype? Wolfgang surely had some wood :D

http://www.rccaraction.com/pics/speedspoof.JPG

[Toyotatogo]

whats the specifications? :confused:

[nitro13]

im gana guess it was made for a hpi car front and rear ends,1/8 scale foams,water cooled engine,with a boat pipe.

wonder the speed.

nitro13,

[Toyotatogo]

Thats a picco .21 boat engine? I wonder what he's got planned?? Because the added weight from the water tanks to keep the engine cool and whatever pump he uses will surely scrubb off speed.

But on the other hand if he can keep it cool enough he can run a higher nitro % 40+ .

He's running parts off of a rs4-3 and a super nitro with a couple of other custom made parts also... I would like to see a photo of the drivetrain.

[nitro13]

looks like he is running straight to the rear diferintial.

i wonder if he somehow made it 4wd because he still has the front dog banes still in that would be some weight saves.maby he will make a custom head so he wont need the water pump and everything else needed for the pump.

nitro13,

[StevePond]

Thats a picco .21?


Nope, that's a picco .80 engine. I figure 50 to 60 percent nitro and she'll be putting out about 8 horsepower.

[nitro13]

how fast do u think it will go stevepond.

nitro13,

[Toyotatogo]

looks like he is running straight to the rear diferintial.

i wonder if he somehow made it 4wd because he still has the front dog banes still in

Well the only problem I see with that is the carburetor would be blocking because it sits were the front drive shaft would be.

[Toyotatogo]

Nope, that's a picco .80 engine. I figure 50 to 60 percent nitro and she'll be putting out about 8 horsepower.

I'd like to see how you figure to keep it cool enough with 50 to 60% nitro and still keep the weight down :confused:

[StevePond]

how fast do u think it will go stevepond.

nitro13,

That depends. If I have the engine modded and go with a turbo pipe instead of the standard pipe, then I drill the carb and flip around the rotary induction valve, I think she'll check in at about 160. I might go with a supercharger and some NOS to get more power.

[Toyotatogo]

it reminds me of the fusion .21 when I look at it....

I sure can't wait until he pieces it all together... :D

[surfer]

steve can i have it for my birthday?

[1822]

I think he's trollin' :D Supercharger? NOS? LMAO :D :D

[CENthasizer]

I was just wondering if boat engines have to be cooled with water...could you possibly use another liquid to run through the engine to cool it?

thanks

[Toyotatogo]

anti-freeze ....lol

[Gemini12602]

::speehless::

I hope we will see some test videos. For those of us not lucky enough to make it to Ca to see this thing run.

[traxxas-dude]

You shouldnt be allowed to enter Steve. :D

Kinda like when pepsi does a promotion, pepsi employees arent allowed to enter it. Same should go with you. :D

J/K, looks fun. Only thing is, how long will it take to get to speed? Cause if it really does go 160, I think it could be a top contender...

[b3guyRC10]

Steve,

Where will the pump, resevoir and lines for the water cooled head go? Seems like to me it wouldn't fit?

Any idea what the final gear ratio for the rear is?

-will

[traxxas-dude]

I'm Guessing 3-4:1ish...should go quick... :D

[R/C_Newbie19]

Woohoo! That's an awesome machine you got there Steve! As everybody keep asking, how will you get that monster engine to keep the temprature down without adding another heavy tank? Will you use water to cool it or will you test something "more chemical"?

/Simon

[thefasttrack]

Thats a picco .21 boat engine? I wonder what he's got planned?? Because the added weight from the water tanks to keep the engine cool and whatever pump he uses will surely scrubb off speed.

But on the other hand if he can keep it cool enough he can run a higher nitro % 40+ .

He's running parts off of a rs4-3 and a super nitro with a couple of other custom made parts also... I would like to see a photo of the drivetrain.
that looks like a picco 80

[thefasttrack]

That depends. If I have the engine modded and go with a turbo pipe instead of the standard pipe, then I drill the carb and flip around the rotary induction valve, I think she'll check in at about 160. I might go with a supercharger and some NOS to get more power.
dont meen to flame but a two stroke engine have both exhaust and intake port open at the same time i personally dont think it will do anything exept a very small increase.tiny one. or you mean this sarcasticly :confused:

[crank throw wei]

Steve,why not go with a SC AND NOS? 90% nitro too.I mean,heck,don't get conservative on us! ;)

[thefasttrack]

watever i guess ill just follow along and keep my mouth shut ;) ^^^

[Chris LaPanse]

that looks like a picco 80
It IS a Picco .80-he already said:
"StevePond:
Nope, that's a picco .80 engine. I figure 50 to 60 percent nitro and she'll be putting out about 8 horsepower. "

[StevePond]

Steve,why not go with a SC AND NOS? 90% nitro too.I mean,heck,don't get conservative on us! ;)

OK. Just need to get one of those really thick head shims and a #28 Novarossi cold plug. :D

[Toyotatogo]

Now i know he's just kidding ... lol :p on some parts of what he wrote that is.

I'm curious to how the connection rod will hold up to 8 horsepower are they even rated to withstand that much power?

[traxxas-dude]

Yeah, that will be a problem...

However I think that RPM will strees the conrodmore than the force exherted(sp?) on the connecting rod on the power stroke...

And for cooling, if that head sticks out of the body, I dont think you'll have a problem cooling it going 150+ :D

[RC10racer89]

Whoa! That thing looks nice. Think it will really go 160mph??? Thats insane! Way awsome steve wish i could see it run.

[Pro3/nmt105]

Are you planning on having a custom drivetrain made? I really doubt that the stock HPI drivetrain would hold up. People used to have problems stripping the stock diff gears with powerful .12s and .15s and people would strip the HD gears with .21s I seriously doubt the stock or HD gears will hold up to 8hp. You also have to think about the CVDs and outdrives I think you would probably need Ti alternatives.

Edit: I'm talking about the problems with the NMT's drivetrain but I think the rs4 3 uses the same drivetrain or atleast a very similar drivetrain.

[traxxas-dude]

Well, the thing that kills gears isnt HP, its torque. And you must figure that the torque of a normal engine in a normal HPI is being multiplied several times over because of gear reduction. This speed car doesnt have gear reduction, its driving the diff directly, so all in all, the torque should be a little less, And its the fact that the rpms dont go thru the gear reduction that will make this car so fast.

Thats why this engine should haul. :cool:

[Chris LaPanse]

Do you realize just how much torque that engine has? It will killgears even when it IS directly driving them. Also, he might cool it like a top fueler-forget cooling, it isn't running long enough to blow.

[mgs9]

::speehless::

I hope we will see some test videos. For those of us not lucky enough to make it to Ca to see this thing run.



Ill make it, for me its weather or know my car will be done in time, Its moslty plans now.

[racerrandy]

I am pretty sure Steve knows exactly how to beef it up, but the torque really shouldnt be a problem. There will be alot of room to get going so you just ease into the throttle. This is not a drag race so there is no need to accelerate really fast off the line. Just my .02.
Later,Randy

[Chris LaPanse]

Yes, but at full speed, it will need a lot of torque at top speed to overcome the drag. Anyway, my comment about the fueler was just about cooling. It was not meant to imply that this was a drag race.

[racerrandy]

I know what your saying, don't take it wrong what I was saying. Most of the damage from bigger motors usually involves an off road or rally type and the jumping that comes with it. You can really tear up something with an abrupt jolt like that.
You can bet that what ever Steve shows up with it will be DIALED!
Later,Randy

[crank throw wei]

Well, the thing that kills gears isnt HP, its torque.
Well,kinda.The thing that really kills gears is shock load.Gears can take torque much better at a constant torque.When the load varies,or slams,as in off road racing,it exerts a much greater load on them.




I hate to be the one who spills the beans,but you guy DO realize that Mr. Pond is yanking your chain,right?

[Toyotatogo]

I hate to be the one who spills the beans,but you guy DO realize that Mr. Pond is yanking your chain,right?

I'm kinda in hopes he isn't because I want to see this thing run. He has quite a challenge before him if it is true, I am pretty sure he can figure it out with no sweat ..lol

[studysession]

Looks cool.

[StevePond]

:D :D :D :D

See below VVVVVV

[studysession]

You ROCK!

[Gemini12602]

Well now we know that it is fake... is the picture fake too? Looks like parts of it could have been photoshopped. I still would love to know what a car with this setup would do lol.

[Toyotatogo]

Nah.......... lol thats just to throw us off ,I'm betting money that he shows up to the California Speedway with that thing in hand....

[crank throw wei]

Just from an engineering standpoint:An .80 spins at,what,9000 RPM? Way too slow to be competative.Then that pipe would have too narrow of a torque curve. Looks like a plane pipe to me(constant speed). Then there's the tires.No way foams are going to take speeds like we are likely to see at this event. No guys,you've been stung by the great one.Never let it be said that Mr. Pond doesn't have a sense of humor! ;) :p :D

Toyota: I've been talking with you on this board for 2 years,and I know you're a reasonably sharp RCer.Please brother,gimme a wink! ;)

[EddieWeeks]

I have run that engine in ducted fans. They turn about 23,000 and put out 5hp..
This was about 15 years ago..

[crank throw wei]

OK Eddie,my bad. While I couldn't find the exact engine at Tower,I did find .60s that could turn 18,000.I don't play with the big motors,but I was under the impression they typically turn much lower Rs. :o

[Toyotatogo]

Awww this thread dies because it was a spoof thats sucks !! :mad: Steve's playing us it isn't a spoof ... lol :D

[jordan29]

if you save the photo to your computer right click the file->click properties->summary->advance. from there it says something like photo creation with adobe photoshop 7.0 next to it. :( it was photoshoped!!!! :(

[RS4ss]

whats all this fuss about these boat engines??? ok, ladies, you build your boat powered .80 cars and meet my group in ca. we just finished our twin .70 thundertiger super rs4. thats two .70 helicopter motors. we ran it with a chase car and it was spankin 125mph. we need tuning time and some faster chase cars to see just what it can do.

[Toyotatogo]

PRO-BX .70 or PRO-70H only revs to 18,000rpms so when you say chase you mean in miles distance before it reached 125mph thats not really anything to brag about..... lol :D

Most speed runs that are acknowleged by us racers here are done within normal radio range from a standing point. I see chase cars as cheating and not really any accomplishment if you have to go miles before it reaches speed?

But to each his own ... ;)

[raderrustler]

Steve...
I like your style, sweet and to the point. I was thinking of a small nuclear reactor to heat a steam drive when the fusion process goes all wacky. I am thinking the superheated steam "Using rcca calculator" should put out about 1200 lbs of thrust and drive the wheels to around 75,000 rpm. I am having trouble finding 80K ceramic bearings tho..... :eek: Any know how to shut off a nuclear reaction by a flip switch?

Randy

[StevePond]

whats all this fuss about these boat engines??? ok, ladies, you build your boat powered .80 cars and meet my group in ca. we just finished our twin .70 thundertiger super rs4. thats two .70 helicopter motors. we ran it with a chase car and it was spankin 125mph. we need tuning time and some faster chase cars to see just what it can do.


Riiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiight. ;)

[studysession]

Nice!

[thefasttrack]

Riiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiight. ;)



ha lol

[jordan29]

I think you missed an "I"...
it should be Riiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiight, not Riiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiight.. .
lol :)

[Toyotatogo]

I think you missed an "I"...
it should be Riiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiight, not Riiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiight.. .
lol :)

:confused:

[Combatcm]

Wow, that's incredibly easy. Marine engines were made for a dogbone insert. so connecting it to the rear will be really easy. No broblems even when starting it, just give it a push and off it goes. I like the idea and hope it's not a joke.