Rc Cross Car with chainsaw engine

[arnoldaszlt]

I Have one big question. I have made chainsaw rc car with 27Mhz 2channel controll system. when engine not running,my controlls working just perfect,but then i start my engine,my controll system goes crazy! pushing gas and turns into left or right... Why? i think engine magnet disturbing my controlls work? did i need a 2.4Ghz controlls? what controll system you are using? Please answer me.Thanks.

[Tecnobingo]

Nice work. Maybe you should have to change the springs in the clutch so that it engages at an higher rpm . I would like very much to see the car jumping and behaving on a proper track.

[justin81traxxas]

sooo kool will u sell it

[loadthebowl]

Cool

[TheFluffyVanquisher]

4w4?

[davonizdashit]

what kind of steering system did u use???

[megaman5043]

wat motor type u usin?

[willaa303]

@megaman5043 Stihl MS260 50cc

[highdanzil]

take half the bearings out of the clutch! itll rev higher before moving off. Is it four stroke? dosent rev very well.

[thebluetrain57]

@highdanzil 2-stroke

[Daschickenify]

How did you keep the spark plug from messing up the electronics?

[jdg8124]

Those front tires are really cambered in.

[elveezultra]

to light and need biger rear tyres - car is perfect

[Daschickenify]

Did you convert it to a glow plug?

[willaa303]

@Daschickenify Nope.. it uses gasoline as fuel

[gizmoguyar]

Damn! Plans please! That is the cutest little piece of awesomeness I've ever seen!

[HellfireGenius]

Nope, thats not a pipe made for 50-80cc 2 strokes...

Thats much too small...

[johnb1419]

2 wheel drive right.

[elsalamemelame]

do you have the plans?

[arnoldaszlt]

what price with no engine? but with controls :)

[arnoldaszlt]

what can i say? it's AWESOOOOME! man sell these buggies.

[stppalautus]

kuis kovaa kulkee?

[Jmmcc008]

wat i want to kno is how everyone makes these custome little frames. do you weld them or wat do u do?

[willaa303]

@Jmmcc008 I made the frame by welding it in a jig. It helps to get the angles right..

[hompola96]

Awsome!

[tubefed420]

That engine is made to run WFO at 11-12k rpm, your not getting anywhere near full power, whered you get the pipe?

[willaa303]

@tubefed420 That is a tuning pipe made for 50-80cc engines. I got it from a moped store.

[EmperorOfHonour]

fatter tires in the back

[tomukas1990]

ohhh... And where did you get those wheels?

[tomukas1990]

What is the distance between the front and rear axle?

And what is the distance between the front wheels?

[willaa303]

@tomukas1990 Wheelbase 79cm, front axle track 67cm, the wheels I got from a hardware store..

[AlightBULLDOG]

WoW! That gotta b the weakest chainsaw engine I have ever seen in my entire life. They probably make electric chainsaw motors more powerful than that.

[mariuslol1]

im thinking of making one with a 65cc chainsaw engine

[BrGuRl2012]

very sweet car, although its needs better acceleration

[willaa303]

@BrGuRl2012 True

[MalakeiDeathstalker]

Very Nice I wanna make something along this line :)

[offspringfanman96]

u have alot of negative camber

[willaa303]

@offspringfanman96 Yup, I should fix that sometimes

[hairyalien]

Hey mate, love your car.

Just went through all the build pics - very nice.

I see you drilled some holes in the clutch shoes to make them lighter.

Am working on a couple of large RC cars myself and am thinking about doing the same thing to get a bit more RPM before engagement.

Did you notice a big difference fom drilling those holes?

Also saw that you made shocks from old gas struts.

I started making some but haven't finished them yet.

What oil are you using in them?

[willaa303]

@hairyalien Thanks. Yes I tried to make them a little bit lighter and got each shoe from 34 grams to 30 g. Unluckily the difference in RPM before engagement is very small in my opinion. I'll make a new video out of it soon..

As I finished this car years ago I filled the shocks with some citroen hydraulics oil that has been there ever since. I think the shock absorbing is a bit too soft with that oil.

[hairyalien]

@willaa303

Cool.

One more question: what's the gear ratio?

I think you might need to gear it a bit lower to make the engine rev out more.

2-stroke engines love to go at full revs.

Keeps them cooler too.

.

[willaa303]

@hairyalien The gear ratio is now somewhere around 9,4:1. I've changed the rear sprocket once to a bigger one but it seems that it wasn't enough.

[greekjohnny]

why did you change your front suspention from 2 "spoons" to single "spoon" one (i don't know the word in english...

[willaa303]

@greekjohnny that's because my previous setup that had one A-arm and one single arm on top of it was too shaky so i decided to try this

[KILLLER526]

i am going to try and start on a escalade rc car and put a weed eater enigne in it( expirement of me and a friend)

[idefix26]

The engine looks powerful.

I think, it could be more faster with 2 or 3-speed transmission.

What is the engine charecteristic and total weight of the car ?

[willaa303]

@idefix26 That's true, it would need an automatic gearbox.

Engine characteristic? Well i don't have any accurate data about this but it is basically a Stihl MS260 chainsaw engine with a tuned pipe. The car weights ca. 45kgs.

[420witchdoctor]

I think it's running WAAAAAAY too lean.

[Reverseflush]

It's bogging. Needs to chain sprockets

[imback218]

its pissin out some smoke

[sherbutorange]

ill be like everyone else and agree thats its a complete masterpeice, something like a small chainsaw engine would woek perfectly for what i want to build, is there any other small petrol powered engines that would be good for an rc car?

[LittIeDeuceCoupe]

Wow man that's awesome work you have done here. I love home made large scale RC and this one is serious business. Keep up the good work ! The build pics are very nice.

[willaa303]

@LittIeDeuceCoupe Thank you!

[LittIeDeuceCoupe]

Wow man that's awesome work you have done here. I love home made large scale RC and this one is serious business. Keep up the good work !

[ppoty45]

where did you make get the frame for the buggy? or did you make it? if you made it, what did you make it out of?

[willaa303]

@ppoty45 I made it myself. it's mostly 14x1,5mm tube

[hit47]

Nice job,it's a masterpiece and you are a very handy crafter.

[willaa303]

Thanks

[battlestroke7]

I just looked at your build pics.WOW ! very nice engineering and metal work.Very impressive. Best Wishes !

[willaa303]

Thank you!

[battlestroke7]

Very nice car man!! I have a video of my Chainsaw powered rc car i made,check it out if you like. Your car is very well crafted,you have great metal working skill. Servo Power is a concern when the car is heavier.5 STARS !!!!

[hein2111]

what are you using as shocks?

[willaa303]

Gas struts filled with oil

[amorrow794]

kool im thinking of doing something like this, if i can get my hands on a chainsaw. . .

[chicksmatechicks]

man dats awsome but its gutless put atleast a 100cc in it or somin

[willaa303]

yep, it's a bit lazy.. a car this heavy would need a bigger engine

[hein2111]

Hello, Could You please tell me how you connected the whiper motor to the reciver? I have seen your pictures but can't understand

Regards

[willaa303]

well.. to connect a big motor to the receiver you need a hacked servo and an h-bridge circuit which gives power to that big motor. the h-bridge is basically an amplifier. it transforms those little currents that spin a regular rc servo into a big current capable of turning big motors. this is the best i can explain of it.. and sure you can build something similar if you are motivated and you have experience in metal working. it cost me about 500e to build

[hein2111]

dam! nice work!! Could it be possible for me to buils something like this? I have time. How mutch dit it cost to build?

[rccrawlerboy]

I have made on like that

but i need help how do you work the steering and what do you use for brakes and how do you hook them up

[willaa303]

Now what are you exactly asking here.. You can see the mechanical part of the steering and braking on build pics. The big black thing is the wiper motor I use for the steering. For the brakes and throttle there is a large Turnigy servo. Some of the steering electronics is also explained on youtube comments.

[mato424]

really nice man....but the engine sounds lazy.....and the wheels seems to not have enough grip .....but nice work anyway

[pitdawgg]

nice car...what type of chainsaw engine did you use???

[willaa303]

Thanks! I used Stihl MS 260 engine.. it's 50cc

[garyfromtheUK]

sounds like the motor needs a bit of a tune up to me. but good build m8

[motanelulpolon]

hey can you send me sound close up photos with that? i would like to know how you fited the wheels and other stuff.....

[willaa303]

Hi, There's now a link to some build photos in the video info area.. check it out!

[arnoldaszlt]

i want it !

[TimmerBella]

Nice...but how did you setup the steering....did you use a servo...

[willaa303]

I use a wind screen wiper motor and an H-bridge for steering. It's like a home build giant servo..

[robotpredator8]

hey can the car move backwards?

[willaa303]

Nope

[ShalemH]

Lol drive it on the ice! If you change the back gear to a bigger one it will go alot faster, I think, or maybe the opposite?

[arnoldaszlt]

it is sick but very slow

[darrinjeffrieskilla]

could use some nos... or supercharger...

[2066241]

Which spectrum radion do you have??

[willaa303]

Spektrum dx 3.0 with sr3000 receiver

[2066241]

sam eexact setup i have do you like it?

[willaa303]

it has proved to be a very reliable and sufficient radio for my use. i like it a lot

[2066241]

I like it ecause i race my nitro trucks and i dont have to worry about cros frenquencies!!

[steveo928]

sweeeeeeeeeeeeeet!!!!!!!!!!

[skootb2]

whats your steering mechanism

[willaa303]

I use a custom build servo for steering. It's made of a windscreen wiper motor and an H-bridge to power it. The control signal for this H-bridge comes from a standard rc servo which has its own motor removed. The steering mechanism itself is very simple. The steering arms of both front wheels are joined directly to an arm on the wiper motor shaft.

[skootb2]

where did u get ur gears nd brake assembly

[willaa303]

That's 3/8" size chain and sprockets and originally made for industrial use.. I bought them from a local shop. The brake assembly is from a minibike.

[pekkaholoppa]

ouyeh! is it heavy?

[willaa303]

44kgs to be exact

[vwmicrosizer]

im making one out of a chain saw and its a truck with those 2 for $9 tires at lowes i might use some sand paddle tires. i have the servos reciver remote all i nee is a chain saw but i know where to get a used one for very little

[deeph46]

COOOLLLL!!!!

[deeph46]

coooolll!!!