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        Question Suggestions on building a car powered with chainsaw engine

#1 CaptainDestructo Oct 13, 2011 09:45 PM

Suggestions on building a car powered with chainsaw engine
Hey all

I know pretty much nothing about r/c stuff but would like to build a chainsaw powered car. I have a 35cc McCulloch engine and was wondering if anyone could give me some advice on how I might get started and what some good heavy duty steering servos would be and possibly how to wire them. Any help would be greatly appreciated. Thanks

#2 traxxas13 Oct 22, 2011 08:01 PM

well depengin on what your budget is i would just pick up a nice used hpi baja 5b. but if you are dead set on a custom depends on the weight for the servos. and what your budget is.

#3 Johnnysplits Dec 15, 2011 07:36 PM

chainsaw engine will not turn the rpm you need

#4 cheezsoup Jan 05, 2012 05:01 PM


Originally Posted by Johnnysplits (Post 20149922)
chainsaw engine will not turn the rpm you need

Could gears not be used?

#5 traxxas13 Jan 11, 2012 11:03 AM


Originally Posted by cheezsoup (Post 20331750)
Could gears not be used?

they can but unless you have alot of time and money to have some machined it isnt worth it.

#6 txt killer Jan 17, 2012 04:46 PM


Originally Posted by Johnnysplits (Post 20149922)
chainsaw engine will not turn the rpm you need

You don't need RPM to make speed. HP is what you use and the right gearing.:D

#7 Johnnysplits Jan 29, 2012 05:13 AM

Guess you'll be making your own gears

#8 txt killer Jan 30, 2012 06:41 PM

Chain drive is the cheapest to use and buy. You can buy gears but they will be more expensive and they have to be set right to work.:D

#9 MariusPrinsloo Apr 13, 2012 01:22 PM

I am also thinking about building a gas powered car . My choises are 15cc and 35cc .
After some searches it seems like the most commen setup is a chain drive with a ratio of 6:1 to 10:1 .

Am I wrong when I say that the starting point would be to determine how big the sprocket on the axle will be ? That way you can get wheels big enough to go with it .

I would like to keep my build as simple as possible and use a solid rear axle with suspension on the front .

#10 txt killer Apr 13, 2012 03:22 PM

Tire size will slow you down. The size of cc engine dosen't mean anything. You need at least 2 hp. Less will require a lower gear ratio.

#11 jermainezey Apr 20, 2012 06:55 AM

am bout to start abuild like this
well i know a lot about r/c nitro and gas r/c 's am bout to start a build i was going use a chain saw engine but am going be using a b and s 6.0 hp ohv engine it was free and runs great i was going go out a buy a chain to take the engine out but i then got this one for free . am not to sure if am going build a car or truck .am thinking big rig . its going be a front mounted engine with a chain runing to rear to turn a live go kart axle its going have hydraulic brakes disk brakes on the front and one on the rear axle . thats sum of my set up am still drawing out my setup and plans right now so i dont have a lot of info but i will post pics of my engine soon am going be mod it with a lighter flywheel remove gov. and add after market carb

#12 robvtol Apr 28, 2012 07:50 AM

check this one out..that I just builded.
Rc monster 110cc atv quad..test #1 (0 min 55 sec)

#13 rcphreak May 28, 2012 08:39 AM

what was used to steer this beast ive been looking to do this thanks in advance .

#14 D.V.P Jul 07, 2012 04:44 AM

Any motor will work as long as it has a clutch and you gear it correctly.

Dual chain and sprocket setup is one easy way of doing it.
I've used angle grinder heads on a few projects with good results.
They usually ahve a reduction between 3.5:1 to 4:1.

Run a small sprocket off the output on to the reat axle.
Works well.


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