slot car mod!
 

ok. ive decided to tear apart an old slot car. (couple years old) and use it for the basis of this mod. i am going to try to put the steering on the front of the slot car, i have tested with 4 alkalines and it seems to have tons of juice. however im not sure how long they will last. the other thing i will have to overcome are the magnets. they may affect my steering so i might have to lengthen the car a bit.

Dude, I think the body in your avatar is the coolest body I have ever seen.

dude sounds like a good mod

that would be my dodge durango body for a slightly extenede bit... (my avitar that is...)

Nicest custom I've seen. Is it plastic/cast?

its lexan. it took some time to make.. but i didnt measure correctly, so the body was too long to fit a bit. so i just extended the tabs on front and rear. i tried to shorten my mold but ended up pretty much destroying it.. it just lost its looks and proportions when shortened.. so i havent molded any since the first ones...

back to the slot car mod.. i have been testing with several battery setups to see how many i will need to get some good speed out of these things... 2 bats, is simply not enough 3 bats would probably be equal to a 2.0 motor. 4 bats and this thing is hitting its power band or someting because it starts to scream. so it looks like im gonna have to do a laymans 4 cell mod with this thing. although im not sure that the bats will last very long. i have a feeling that this motor will drain the batteries a lot faster than the bit motors..

the other option is the mosfet mod. someone correct me if im wrong. but shouldnt this allow more voltage to go directly to the motor? if so then this 4 cell would be even faster, or i could auctually go with 3 cells.. i would love to be able to hook up a 9v battery to it, but i know that would fry the pcb... are there any pcb's that can handle more voltage than others? does anyone know?

I like the idea I have old slot cars too post pic as you do it so I can as well
I also think that full size bit or bigger batteries would be better the laymans ones wouldent have enough juice

yea, they would probably only have enough juice for a 10 foot run... im thinking possibly li-poly for a battery, with a mosfet mod, so that i can get max power to the wheels...

this mod is gonig to take me a while as i dont have a lot of time to fool with the cars. but i will keep posting my progress...

I was thinking more along the lines of AAA nicads they dump as much apmage as you need and run thier fullest till thier done
Where can you get li poly batteries how much are they and what else do you need to use them
If you sont use the lipoly I will problably build one as well

li-polys i think can be bought at radio shack, but i think you need a special charger for them... i auctually thought of using the extra battery from my cell phone.. its a 3.6v lithiom ion and i could just charge it with my cell phone charger.. its a pretty small battery.. otherwise i think im gonna use these 1/2AAA batteries.. they are 300mah bats.. and i could put 4 of them in the place of 2 AAA batteries getting twice the power.. the batteries would of course be side by side running lengthwise the center of the chassis..

I tried running my slot car first with a 9V battery whick was kind of dead and it didnt spin then with 2AA nothing again so I hooked it ip to my 7.2V race pack from a larger rc car at it finally went
my transformer says it puts out 220V at 7VA form the standard 120V at 7A
what is a V amp
wierd eh

i noticed the same thing with the AA batteries.. they didnt work.. so i tried wiring directly to the motor contats instad of the metal runners on the bottom of the car... bingo. it worked. i guess those things dont make the best contact....

well im starting to make a lot of progress with my slot car engine bit... i decided to use the bit chassis, this way i wont have to fiddle with the steering... the only issue is the motor.. it will not quite fit inside the chassis, so i will be mounting it in the body at an angle.. my only worry is that the magnets from the engine will throw off my steering.. so far i have mounted the rear axle from the slot car in my bit...i basically cut out the middle of the rear of the chassis to allow for the big gear to pass through.. (i will post pics later.. i slightly drilled out the area where the old axle was mounted to account for the larger size axle (diamater of the metal axle is slightly larger than the bit axle)it now spins freely... i had though about extending the chassis to sink it all inside.. and i still might do it...this engine would work great inside a zip zap.. now the only question is where im gonna put the batterys.. well heres the battery i plan on using..
http://www.radioshack.com/images/Pro...0/960-0520.jpg
its a radioshack cordless phone battery, if this dosent fit right i might have to split up the cells, to place them better inside the bit...i might get 2 of them so i can use 4 cells.. the more voltage this motor gets the better.. i also will be stopping at the hobby store to get some new silicone tires for the rear. the ones on it now are all cracked up and shinny (no grip at all) i will try to get some pics up in the next day or two.. i have been taking tons of them.. its just a matter how they turn out.

btw, thats a 3 cell 280 mah battery... 3.6v...

and its 10.99
http://www.radioshack.com/product.as...Fid=960%2D0520

the axle is in my bit.. now its time to mount the motor...

ive got three axels and motors if you want them :)

why did you not just cut off the front of you bit snd the front of the slot car and join them together thats what I would do
this thing going to rip keep me posted

im trying to keep an all bit chassis.. i could do that. i could also just extend the bit chassis, about 7mm and it would fit pefect..in fact i still might extend this thing.. i first want to see what 4 cells will do. i still havent got my batterys for it yet..

can you post a pic of your slot car the axel looks just like mine but I havent been able to run mine with low voltage like you have

i believe the car is an aurora slot car... HO scale. i need to get more batterys for my camera so i can take more pics.. i have also had trouble with getting it to work.. but i cleaned off the contacts on the motor. and double checked the battery contacts and then it was working. you have to have a perfectly good connection for the motor to turn..

real slot car back tires would b great for drag racing.i know this dosnt really have anything o do with this but...it would be..my friend has some that are used but are still very very sticky...like it has glue on it...there about 3/4s of an inch to 1 inch wide... but the axel hole is too big....im bout to go get them soon and put them on my drag car...

I was doing to do that too I have a set of them on my desk but I think I will buy kit racers with the black front wheels and use those to mount the wheels
I put the front slot car wheels on a car with the back wheels and lowered it on a kit chassis and it looked way more porportioned
like a real car
I have muscle machine wheels on my car so it doesnt matter to me

humm.... well i might be scrapping this plan. i got the motor in the car (bit) but the batterys were just not powerful enough...these motors need a lot more juice than a few 1/3 aaa batterys deliver.. i guess its time to swap out the slot car motor for the BFM. or the motor from my electric toothbrush.. theres more info on this mod in another post something like the BFM 9000...

thats a shame I got my motor to finally run off of a 5V pack of AA I bet if you got 2 Li Poly that would be sufficiant
I also could not find the BN 9000 thing I tried searching but nothing came up
I need a battery pack that I van externally carge for my half broken car i wreaked it doing a duel cell so I cannot charge using the standard spots
any Ideas
I 'm thinking maby I might look for a cordless phone pack
or do you know if lithium disposables are strong enough you know for lights in cars I thought I can get them for $1 canadian so I could just not use it as much and use those
The li poly are amazing seeming but I dont trust myself with charging them

the old hot wheeels cars that had a built in 2v compacitator has a slot car motor that is able to run off a dual cell i suggest using that

what hot wheels cars are you talking about???

i dont know what there called but there pretty old

what exactly is a slot car?

its a car which usually has an armature motor... basically a wound motor with magnets on the side. when current is passed through, the motor it creates a magnetic field which in turn makes it spin...

anyway the cars themselfs have a straight front and rear axle, and a peg in the front middle of the car that goes into a grove on a track. the track has a couple strips of metal on either side of the groove which electricity flows... there are contacts on the bottom of the cars which pick up this energy and propel the car forward.

check out http://www.slotcarworld.com/ to learn more about them.