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All Forums >> RC Cars, Buggies, Trucks, Tanks and more >> RC Giant Scale Cars >> Homemade rc car project!Ideas needed!
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Homemade rc car project!Ideas needed! - 6/1/2008 1:58:33 AM   
naynay12


 

Posts: 1138
Joined: 12/9/2006
From: Melbourne, AUSTRALIA
Status: offline 		Well my lack of money to buy a 1/5 scale,and the other homemade rc car thread has inspired me to build a gas rc car.
It will prbably be 2wd,and i want to spend as less money as possible.
So i need some help from you guys that own a 1/8 scale buggy or a gas engine.
I was thinking of buying a nbuggy rolling chassis (front end and rear end and chassis) and then going from there.
Would their be enough room on a 1/8 scale chassis to mount a huge gas engine on it?Or will i have to make my own chassis?
If anyone has any ideas of what buggy to use such as a buggy that has a strong drivetrain and the chassis is big enough let me know,so i can pick one up on ebay maybe.
The other problenm is mounting the clutch to the car.I was thinking of using a sprocket and all,or a centrifugal clutch,a pocket bike cluthc or soemthing like that.Any ideas welcome!
Also depending how money is i might just pick a cheap engine up off ebay or if i have some spare money i might pick up a cy23rc. Like i said any ideas welcome!
       Post #: 1

RE: Homemade rc car project!Ideas needed! - 6/1/2008 2:59:11 AM   
splcrazy


 

Posts: 1420
Joined: 8/21/2006
From: melb, AUSTRALIA
Status: online 		yeah make that rc truck that was in oceans 11 . Has anyone got a pic of that thing ?

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RE: Homemade rc car project!Ideas needed! - 6/1/2008 3:42:32 AM   
sam123


 

Posts: 156
Joined: 2/12/2005
From: Melbourne, AUSTRALIA
Status: offline 		Engines are cheap. Just search on ebay for them under the name 'brushcutter' and 'whipper snipper'. You should be able to get one for about $10. You need to make sure that the engine you get is a full crank (pullstart at the back of the engine, not on the side of the output shaft) and that it is not too heavy. Do not get an engine any bigger than 25cc, they are too big. Any good quality 1/8th scale buggy will be fine. The transmission will also be fine so long as you keep the diffs packed with grease.

BTW, most good quality weed whacker engine already come with clutches.


< Message edited by sam123 -- 6/1/2008 5:16:14 AM >

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RE: Homemade rc car project!Ideas needed! - 6/1/2008 8:49:54 AM   
naynay12


 

Posts: 1138
Joined: 12/9/2006
From: Melbourne, AUSTRALIA
Status: offline 		Ok,do you think a gas engine will fit on a ofna hyper 7, or hyper ST?What cheap but good buggy/truggy do you guys reccomend?
Tyhanks for the tips sam 123, a straight shaft will be ok right?

< Message edited by naynay12 -- 6/1/2008 8:59:33 AM >

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RE: Homemade rc car project!Ideas needed! - 6/1/2008 9:54:47 AM   
jasrx


 

Posts: 768
Joined: 7/18/2006
From: melbourne, AUSTRALIA
Status: offline 		for $600 u can buy a brandnew 1/5 , a 1/8th scale diff wont last long

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RE: Homemade rc car project!Ideas needed! - 6/1/2008 10:17:00 AM   
naynay12


 

Posts: 1138
Joined: 12/9/2006
From: Melbourne, AUSTRALIA
Status: offline 		Yeh but the 1/5 scale will need a lot of part replacemnts for that cheap,il hope to do this for under $300

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RE: Homemade rc car project!Ideas needed! - 6/1/2008 10:31:01 AM   
jasrx


 

Posts: 768
Joined: 7/18/2006
From: melbourne, AUSTRALIA
Status: offline 		$300 aye , when ya finsh it we`ll have to meet up as im in melb too . i have some parts u might beable to use , clutch bell clutchbell plate [with brake setup] and some other bits and peices her gathering dust . [ ill never use them as iv upgraded to alloy]

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RE: Homemade rc car project!Ideas needed! - 6/1/2008 11:03:29 AM   
naynay12


 

Posts: 1138
Joined: 12/9/2006
From: Melbourne, AUSTRALIA
Status: offline 		Awesome,also now im looking for a buggy or preferably truggy that does not have any mounts in the way that connects the rear end to the chassis.Since if the car has any mounts/bracket in the way it will be hard to mount the engine on.So i need an rc car that the bracket/mount that connect the rear end to the chassis that is small?

< Message edited by naynay12 -- 6/1/2008 12:16:02 PM >

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RE: Homemade rc car project!Ideas needed! - 6/2/2008 9:31:06 PM   
mojavemonster



Posts: 446
Joined: 2/20/2007
From: , CA, USA
Status: offline 		Wish I could get my build done for under 3oo. I'm building "Project : Hard-CORR". I'm already $1200 deep and not nearly finished. But when its done it will be the coolest 1/5 ever.............EVER

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RE: Homemade rc car project!Ideas needed! - 6/3/2008 1:26:58 AM   
badz



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Joined: 8/14/2004
From: Syracuse, UT, USA
Status: offline
quote:

ORIGINAL: naynay12

Ok,do you think a gas engine will fit on a ofna hyper 7, or hyper ST?What cheap but good buggy/truggy do you guys reccomend?
Tyhanks for the tips sam 123, a straight shaft will be ok right?

that would never handle a gas engine, the shocks would buckle with one bounce, if you could even fit the engine into that tiny chassis and as posted the 1/8 scale diff won't last long, one run i'd bet if that they just can't handle the torque of these gas engines

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RE: Homemade rc car project!Ideas needed! - 6/3/2008 1:44:42 AM   
Fabe


 

Posts: 84
Joined: 8/12/2005
From: laval, QC, CANADA
Status: offline 		Naynay, there's a lot of work into building a nice custom project. For $300 you can build something, but how long it will last depends on the exact components and configuration. Remember that, as I've learned, stinging on one part sometimes leads to many, many headaches later.

That being said, I've chosen my projects based on T-Maxx components, partly because of price, the fact that they were lying around and easily obtainable. Badz is right, 1/8 components (diffs, for example) are not made for 20 pounds of goodness. In this particular case, I opted for the 4WD choice, which better distributes the power F/R. For T-Maxxes, the 2 shocks per A-arm was also useful, but don't expect to use stock shock springs since the car will just drop to the floor - I had to make my own out of stiffer material.

I'd say if you can get a cheap engine with a built-in clutch, do so, because mounting a clutch on a leaf blower was not particularly fun.

Anyway, ask more questions if you need help. Good luck!

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RE: Homemade rc car project!Ideas needed! - 6/3/2008 2:33:27 AM   
mojavemonster



Posts: 446
Joined: 2/20/2007
From: , CA, USA
Status: offline 		Fabe, I'm interested in what you got goin. Along the same lines I tore up my savage for parts.....bless her soul.


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RE: Homemade rc car project!Ideas needed! - 6/3/2008 2:58:46 AM   
Fabe


 

Posts: 84
Joined: 8/12/2005
From: laval, QC, CANADA
Status: offline 		Here's the link to the second one I built called Mini-mo and after a bit of work here. I have a link to a lot more pics if you want to PM me...

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RE: Homemade rc car project!Ideas needed! - 6/3/2008 3:55:16 AM   
sam123


 

Posts: 156
Joined: 2/12/2005
From: Melbourne, AUSTRALIA
Status: offline 		I also thought that the 1/8 buggy transmission would not hold up, but I have been proven wrong. I have driven my converted thunder tiger EB4 for a long time now, and I have seen no sign of excessive wear on any of the drive components.
I believe that the best way of protecting your diffs is to purposely set up a weak point in the transmission that will break instead of the gears. In my case, the weak point is the grub screw that holds the sprocket onto the diff outdrive. If something goes wrong, the grub screw will just shear off instead of my differential being destroyed. My car only weighs 6kg, so that helps too.

The suspension, however, is something that has to be dealt with. The stock springs will be nowhere near stiff enough. Soon my car will have LST shocks to fix this problem.

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RE: Homemade rc car project!Ideas needed! - 6/3/2008 8:46:09 AM