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.61 Plane Engine?

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M

MaxxMan-X

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Ok here is my situation. I don't have much RC money anymore and I want to still keep running my maxx. The Tower Hobbies .61 is $89 and the rebuild is $35. That's the cheapest i've EVER seen. I know it'll be slow but at least it'll work. I have calculated with 18/51 gearing in 2nd gear I'll be going a whopping 20 MPH! Oh well, its better than 0. Though it'll be slow it'll be unstoppable. The uber pulling/climbing truck.
Cooling: A couple good comp. fans ought to do it and if not i'll rig up one of those fans that run off the flywheel.
Mount: I can make a mount out of a block of aluminum.
Clutch: The crankshaft can be machined to be just like regular engines.

Do you think it'll work? :)
 
You better machine a large cooling head. A .61 is designed to run like a 13" prop running at over 8000rpm's...that's a lot more cooling than a few computer fans or a flywheel powered fan. Also, u might need to get it ported.

Personally, if I were you, i'd just get one of those thunder tiger .70's and work from there. Start off with something that's "designed" for r/c cars.
 
We talked about this on another forum and I say if you can spend $89 plus what ever it will cost you for the comp fan, spur gear and CB and motor mount you can buy a new engine. Is this a stock Maxx or a .21 converted Maxx? Either way here are some engines that will work and you can find them even cheaper then this if you look around. I bought a Ofna Force .26 for $99 on Ebay.

http://www2.towerhobbies.com/cgi-bin/wti0001p?&I=LXGGP6&P=0

http://www2.towerhobbies.com/cgi-bin/wti0001p?&I=LXHFB6&P=0

http://www2.towerhobbies.com/cgi-bin/wti0001p?&I=LXESC3&P=0

http://www2.towerhobbies.com/cgi-bin/wti0001p?&I=LXHTA2&P=0

http://www2.towerhobbies.com/cgi-bin/wti0001p?&I=LXLU03&P=0

The work you would have to do on the plane engine to make it fit and work you would be better off doing a side job to get some extra cash and buy an engine made for your Maxx!
 
I dont get it, Its a .61 size airplane engine an it turns over 8,000, Y so much cooling ¿?¿?¿? Its only turnin' 8K rpm's, RC engines get over 30K rpm's, am i right ??? If i am right shouldnt cooling be less important ???
 
The propeller is turning at over 8k, not the piston. That is more than enough moving air needed to keep an airplane engine cool.
 
O, do these airplane engines rev. faster than R/C car engines ???
 
It's a bigger engine making more torque at lower rpms. The engine is also turning at 8K. Sorry, forgot that the propeller is directly attached to the shaft. RPM's are governed by pitch and size of the prop.
 
O so it need more cooling casue it is makeing more torque, which makes the engine work harder ???
 
The car engine is also working very hard, almost all the time. The airplane engine in normal flight is running at a constant half throttle. The harder they work, the hotter they get, and as mentioned already, there's a MAJOR cooling fan right in front of it when it's in an airplane. There's a reason there are many upgrades for cooling heads in cars, but none for planes, unless the engine is in a heli. Then it gets a larger head.
 
An airplane engine is only moving ONE part. The propeller. Full throttle is basically just for taking off, so the engine never works really hard.
A car engine is moving gears, bearings, bushings, driveshafts, universals, axles, more bearings and bushings, and finally wheels, struggling to get over grass, rocks or what ever else you put it through.
 
Well, actually, WOT with an airplane is used A LOT. When i fly my pattern plane I go WOT constantly, especially when i go vertical. If I don't, it'll crap out halfway.

Also, with the proper propeller (sp?) for an airplane engine, the load will be a lot more than if you took the same engine and put it in a car. That's why in stock form, you'd probably experience a lot more over-revving if you took the same engine and put it in an r/c car. Anal Sex

The reason why you experience r/c cars having trouble going through grass and rocks and stuff, is cuz most are underpowered. It's sad, but true.
 
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I'm also a flyer, Kwong, but since he's not looking to fly, I skipped some of the details. Pattern flying, 3-D, and some hovering require more throttle.
Airplanes are also built to be as light as possible, since running into things is not something they are designed to do. Nitro trucks, other than moving lots of mechanical parts are heavy because they have to take a beating.

So, MaxxMan-X, it's about the same as taking a piston engine out of a small Piper Cub and putting it in a Kenworth Tractor-trailer. Will it work, since they both use piston engines? Yes, but not well, and it wouldn't last long before getting cooked.
 
Wow I got a lot of replys overnight! Thank you all for your thoughts. Personally I think it'll work but I have no expirence with planes. Since so many people are opposed to this I have decided to just get a regular engine. My maxx can pretty much take anything I can put in it. The drivetrain is all UE except for MIP outer CVD's. I had been running an O.S. RG but I guess mine's bad luck. It's the only engine I've ever had a problem getting dirt into. Not once but TWICE!
The OFNA Force engine looks pretty good. Should I get that or try the new Orion .28?
http://www2.towerhobbies.com/cgi-bin/wti0001p?&I=LXHGU0&P=ML
there's another .28 just like it with different colors for a little less. :)
Thanks again for all the replys. :D
 
Huh that's cool. I had been considering either of those and I didn't even notice they look the same. The Orion is definately cheaper :)
 

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