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few q's about airplane engines

Old 03-11-2005, 10:32 PM
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RabidRacer
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Default few q's about airplane engines

im more into rc car gas engines and stuff. but i am unfamilear with plane engines. so i have some questions...

1.) when they start are they at idle or like full throtle?
2.) how much rpm/hp/torque does a norvel .074 put out?
3.) is there a way to make the cooling head bigger thats cheap and easy?
4.) how easy are the throtled engines easy to tune?

thanks,
rabid
Old 03-11-2005, 11:32 PM
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Fly-guy
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Default RE: few q's about airplane engines

1) most people start at around idle, maybe a bit above.
2) No idea
3)Why?
4)Very once you know how, and usually after they are set they require only a few adjustments. But get someone experienced to help you first.



Fly-guy
Old 03-12-2005, 12:58 AM
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Default RE: few q's about airplane engines

for #3. i herd that they overheat in cars cuz they dont get the airflow like in a plane

and another question. do you need pressure on the fuel tank from the pipe
Old 03-12-2005, 01:35 AM
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Default RE: few q's about airplane engines

YEs, You need the pressure to help pump the gas.
Old 03-12-2005, 08:14 AM
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Default RE: few q's about airplane engines

when they start they are a bit above idle,,the power info is at the norvel site,,there is a cooling head made for the Lite Machines Helicopter again at that site,,a very powerful and reliable engine in airplane form,,there has been some problems with the heli version as they have required some extensive breakin times,,I very carefully ran mine with 8 head shims and 3 tanks of fuel and it purrs..go to the 1/2a forum and just ask or search...Rog
Old 03-12-2005, 12:16 PM
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Default RE: few q's about airplane engines


ORIGINAL: RabidRacer

for #3. i herd that they overheat in cars cuz they dont get the airflow like in a plane

and another question. do you need pressure on the fuel tank from the pipe
Do you want to stick an airplane engine in your car? If the answer is yes, don't. It would cost 3 times the money of the nicest car engine to machine a cooling head so you can use an airplane engine for your car.

Here's a better idea. Sell all the car stuff and buy a trainer airplane. Once you fly, you will wonder why in the world you wasted so much time and money screwing around in the dirt. Airplanes rule!
Old 03-12-2005, 01:37 PM
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Default RE: few q's about airplane engines

im not a fan of airplanes. but i am of airplane engines in a micro car. ittle be alright i suppose. ill buy a regular car engine cooling head and jb weld it on there . ot put a 540 moter heat sink around it
Old 03-12-2005, 03:06 PM
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Default RE: few q's about airplane engines


ORIGINAL: RabidRacer

im not a fan of airplanes. but i am of airplane engines in a micro car. ittle be alright i suppose. ill buy a regular car engine cooling head and jb weld it on there . ot put a 540 moter heat sink around it
Uh... Why?
Old 03-12-2005, 11:52 PM
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Default RE: few q's about airplane engines

why what
Old 03-13-2005, 12:18 AM
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Default RE: few q's about airplane engines

See, airplane engines basically have a fan keeping them cool (the prop wash) while car engines are stuck inside a car. Plus, that little engine has to get that car going which takes some work. A airplane engine just has to spin a prop. Also, car engines don't have much air going over them as airplane engines and they are exposed to dust, dirt, whatever (unless you crash your airplane ). That is why car engines have those big cooling heads. So if you want to blow up a RC airplane engine in a RC car, that's your choice. Okay? Lecture over

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Old 03-13-2005, 12:58 AM
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Default RE: few q's about airplane engines

Just don't bother.

There are different engines for a reason. Each is designed for it's intended use. You would spend more time and money in your modification attempt than it is worth. In RC cars, I know RPM is king, as long as there is some torque, but airplane engines will never get you what you want.

It has been tried before. I don't mean to sound negative, but...it just won't work.

Good Luck!!
Old 03-13-2005, 02:48 AM
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Default RE: few q's about airplane engines


ORIGINAL: RabidRacer

im not a fan of airplanes. but i am of airplane engines in a micro car. ittle be alright i suppose. ill buy a regular car engine cooling head and jb weld it on there . ot put a 540 moter heat sink around it
Please post pictures.
Old 03-13-2005, 09:34 AM
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Default RE: few q's about airplane engines

ORIGINAL: RabidRacer

why what
Why try and put an airplane engine in a car? What would be the advantage?
Old 03-13-2005, 12:06 PM
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Default RE: few q's about airplane engines

ive seen this mod done and it has worked.
the mgt engine puts out about 2.25hp and thats in a huge truck. the norvel .074 puts out .38 and it only has to push a 2 pound max car. your crazy if you dont think it can push it.

the advanteges of an airplane engine is that it is small light and can fit in a tight space.
Old 03-13-2005, 08:35 PM
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Default RE: few q's about airplane engines

In the late 60s there were no RC cars or motors. Took a Super tigre 35. Put a hunk of foam on the carb for a filter. Heat sink, take a 1/4 in. by 3 in. square bore a hole to fit the cyl. Cut slits around the edge with a hacksaw for cooling fins. Tires were soft practice hockey pucks glued together for width. drill a hole in the centre for axle and turned down to size with sandpaper and electric drill. These were scratch built, no kits. Even made our own clutches. the fun days of do it yourself

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