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Old 09-24-2001, 03:19 AM   #1
Clegg
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Default Build a Flat 4 Subie R/C car

http://www.osengines.com/engines/osmg1320.html

I have used that engine in a R/C airplane years ago... expensive... DAMN expensive, but just like our engines, very high power.

with some modifications it could be used as a Car engine (overheating would be the biggest issue since the engine was made for havinga BIG fan spinning constantly infront of it and not under high stress applications)

I just thought, if you were to make a cool scale Flat 4 Boxer Subie R/C this would be the engine to use
The price for this engine ALONE on Tower Hobbies is 1200$.
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Last edited by Clegg; 09-24-2001 at 03:44 AM.
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Old 09-24-2001, 03:24 AM   #2
Clegg
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Also getting a clutch to lock up at around 2000 RPM will be a bitch

its RPM range of 1800 - 8500 is VERY close to our engines
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Old 09-24-2001, 06:11 AM   #3
XT6Wagon
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Well you could always water jacket the heads and go that route.
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Old 09-24-2001, 12:18 PM   #4
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that would be so incredibly heavy and throw off any sort of weight distrubtion on the car. Heck, a one cylinder motor was bad enough. I loved the top-end of my Nitro Yokomo, but my electric one would run rings around it in the twisties. Hey, that's familiar. lol

Don
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Old 09-24-2001, 01:39 PM   #5
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That would be cool for someone to custom fab up a car around that flat 4.. I was thinking the same thing while perusing my latest Tower hobbies catalog.

I'm also dying for someone to do something with that .30 sized Wankel rotary that OS makes
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Old 09-24-2001, 02:00 PM   #6
Clegg
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to use that motor the scale of the model would have to be like 1/5 or so.. so it would be a BIG car, and heavy...
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Old 09-24-2001, 02:36 PM   #7
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Or you could use :
this motor to build a scale rx-7

18,000 rpm redline. Sweet.

Actually, that would be a cool engine for a ducted fan plane.
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Old 09-24-2001, 02:41 PM   #8
Clegg
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heheh hook 3 of those together ( would take a ****LOAD of work) but you could have a nice 3 rotor plant
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Old 09-24-2001, 03:13 PM   #9
GooseMan
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I still cant believe that these little engines work!

I used to have an RC10GT with a little .10 in it (was it a 0.10? or a .12? I forget..been a while!). It was cool, but the damn thing never started! ARGH! I'll stick to electrics....
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Old 09-24-2001, 03:24 PM   #10
Clegg
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They take a lil TLC some times to get them to run, and if you over heat them, they vapor lock real easy...
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Old 09-24-2001, 06:04 PM   #11
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holy crap! that thing produces SO many hp!(no sarcasm)
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Old 09-24-2001, 06:24 PM   #12
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anyone remember the like, 1.2 cu. in. engine that OS made that was supercharged. That was friggen cool. lil tiny forced induction
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Old 09-24-2001, 06:40 PM   #13
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Yep that was a nice engine.. called the surpass.


you know that flat 4 has around 3.5CI of displacement!
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Old 09-24-2001, 06:44 PM   #14
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check this one out... a Engine with an ECU and fuel injection

http://www.osengines.com/engines/osmg0680.html

the one you were talking about with the super charger is:
FS-120S-SP

2.5HP S/C'd that would be 1.9HP without the S/C and it spinns to 10kRPM
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Old 09-24-2001, 07:01 PM   #15
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tower hobbies has a pic of the supercharged engine.....

http://www2.towerhobbies.com/cgi-bin...1&I=LXBY66&P=7

at $500 it would be tempting to try to toss that into a T-Maxx.

Philip
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Old 09-24-2001, 07:08 PM   #16
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I am wondering how much work it would be to get that SC mod'd to work on that flat 4

would be cool.. a S/C'd Flat 4.. get that bitch cranking 6 ot 7 Hp
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Old 09-24-2001, 07:35 PM   #17
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Don't use water to cool a flat-4. Do what Porsche used to do - use the oil (lots of it with an oil cooler).
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Old 09-24-2001, 07:38 PM   #18
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well in these engines the oil is all in the gas, ( even though they are 4cycle, they use the castor oil in the fuel to lubricate the engine and the unburnt alcohol in the fuel cool it.)
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Old 09-24-2001, 07:46 PM   #19
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Nevermind.
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Old 09-24-2001, 10:04 PM   #20
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i don't think its possible to fit that engine in a RC car. just looking at it you can aready tell its too big and it probably weigh's too much throwing the RC car off balance. that engine probably has too much torque. it will be destroying gears like crazy. then again i'm just guessing. can someone prove me worng and ram this engine into a RC car?
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Old 09-24-2001, 10:17 PM   #21
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any tiny turbocharged engines???
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Old 09-24-2001, 10:18 PM   #22
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Hey, then it'd be just like a real Impreza, too much torque and shreading gears.
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Old 09-24-2001, 10:26 PM   #23
Clegg
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getting gears to hold it wouldnt be an issue, its getting a clutch to hold, and lock at such a low RPM that would be the issue most cyn. clutches that normal R/C cars use need 4000 - 5000 RPM to hold... and thats with a lower power engine ( .5HP) This beast of an engine would torch any existing clutch before it made it to the top of the first gear.

it would not be hard to make a 5sp automaticly shifting tranny, but it would be hard to get a drive train as a whole to hold all that power going to 3 Diff's.

the car would be huge, and would need some weight in the back tou counter ballance it ( fuel tank, battery pack, etc..) Would need to be completely custom built from chassis, tranny, everything.. it would be a 7000$ car by the time you are done, and would still be slower than a Serpent Impact AWD 1/8th scale onroad car.
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Old 09-24-2001, 11:58 PM   #24
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Or how about this- http://www.fineartmodels.com/scerri.htm
I've seen a few articles on this car and it's just unbelievable.
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Old 09-25-2001, 12:08 AM   #25
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That's not an engine, this is an engine

I have always wanted to put one of these on a weed eater...

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