Jump to content




Photo

Front-wheel drive slot car


  • Please log in to reply
28 replies to this topic

#1 Yves Chapoutier

Yves Chapoutier

    Rookie Keyboard Racer

  • Full Member
  • Pip
  • 23 posts
  • Joined: 20-January 18
  • Gender:Male
  • Location:Chambéry and Paris, France

Posted 27 February 2019 - 11:25 AM

Dear friends,

 

I would like to build a front-wheels drive chassis for a 1/24 slot car project.

 

Please, could you help me by some examples of this type of chassis : plans and photos.

 

Many thanks for your help, Yves






#2 Ramcatlarry

Ramcatlarry

    Posting Leader

  • Subscriber
  • PipPipPipPipPipPipPip
  • 2,422 posts
  • Joined: 08-March 06
  • Gender:Male
  • Location:St Charles, IL 60174

Posted 27 February 2019 - 11:47 AM

Since the 'modern' slot car places an emphasis on low center of gravity and ground clearance with the mass of the car maximizing the flag and (rear) drive wheels,  I would consider a vintage truescale  build of a car such as a mid 1930s front wheel drive Indianapolis racer with a greater ground clearance.  This would allow the builder to have a drop-arm flag that is balanced to work independently of the front drive wheels.  An isofulcrum flag plate hinged as long as possible would be my choice with an inline drive motor.


Larry D. Kelley, MA
retired raceway owner... (for now)
race directing around Chicago-land

 

Diode/Omni repair specialist
USRA 2017 member #404
USSCA  member

Host 2006 ISRA/USA Nats
Great Lakes Slot Car Club member
60+ year pin Racing rail/slot cars in America


#3 Jaeger Team

Jaeger Team

    On The Lead Lap

  • Subscriber
  • PipPipPipPip
  • 287 posts
  • Joined: 27-January 17
  • Gender:Male
  • Location:Palermo, Italy

Posted 27 February 2019 - 03:00 PM

Hope to help:

 

http://slotblog.net/...o-drive-system/

 

http://slotblog.net/topic/10176-mini/


Maurizio Salerno

#4 SlowBeas

SlowBeas

    Troublesome De-slotter

  • Subscriber
  • PipPipPipPipPip
  • 921 posts
  • Joined: 15-January 07
  • Gender:Male
  • Location:Lost in South Carolina, USA

Posted 27 February 2019 - 03:43 PM

I chopped up a flexi chassis years ago and constructed a front-wheel drive slot car, only to have it fail miserably.

 

I found the rear of the car slid erratically in turns -- and sometimes much of the straightaways, too. Maybe if I had used a guide flag on the rear, too, it might have worked. Maybe.

 

All in all, my effort proved a failure. Even if I had attempted corrections, I don't think it would have accomplished what I had set out to do: create a slot car that handles better in turns without tipping.

 

Good luck on your construction. The above posters are bright racers. Maybe their ideas will help guide your success (no pun intended).


Jim Beasley
South Carolina, USA

"Assuming either the Left Wing or the Right Wing gained control of the country, it would probably fly around in circles."
- Pat Paulsen, 1968
"I drive way too fast to worry about cholesterol."
- Steven Wright ca. 1983

#5 Jairus

Jairus

    Body Painter Extraordinaire

  • Subscriber
  • PipPipPipPipPipPipPipPip
  • 9,765 posts
  • Joined: 16-February 06
  • Gender:Male
  • Location:Salem, OR

Posted 27 February 2019 - 04:59 PM

The only front wheel drive car I ever built was a chassis for Chris Clark.
It was this Tamiya Mini Cooper, a very small car. 
The motor bracket was purchased from a hobby shop in Puerto Rico and was labeled "Front Wheel Drive Drag bracket"!

No pics here of the finished chassis because Chris didn't want me posting anything on the forum.  He posted it later of course, but a cruise through his archives here show none of his projects popping up.  Guess he stopped using Photobucket.

But this is the basis....
2vPSVHdqxubMLY.jpg

The chassis after that was a solid 1/16" brass pan with notches for the rear wheels.
Guide mounted between the bracket cross rod and the axle with no up and down movement. (If I remember right as it was 11 years ago.)

 


Jairus H Watson - Artist
Need something painted, soldered, carved, or killed? - jairuswtsn@aol.com

www.slotcarsmag.com

www.jairuswatson.net
http://www.ratholecustoms.com
Check out some of the cool stuff on my Fotki!


#6 Eddie Fleming

Eddie Fleming

    Checkered Flag in Hand

  • Subscriber
  • PipPipPipPipPipPip
  • 1,416 posts
  • Joined: 27-April 14
  • Gender:Male
  • Location:Fayetteville, GA

Posted 27 February 2019 - 05:38 PM

The next question is how well did it work Jairus?


Eddie Fleming

#7 Jairus

Jairus

    Body Painter Extraordinaire

  • Subscriber
  • PipPipPipPipPipPipPipPip
  • 9,765 posts
  • Joined: 16-February 06
  • Gender:Male
  • Location:Salem, OR

Posted 27 February 2019 - 06:09 PM

Always a joker in the crowd.
I don't know Eddie, no tracks were here in Salem in 2008.  Chris didn't really care as he did the interior and body paint later.
Ran well on the test bench and I used good rubber on the 3/32 rims but it never saw a track that I knew about.


Jairus H Watson - Artist
Need something painted, soldered, carved, or killed? - jairuswtsn@aol.com

www.slotcarsmag.com

www.jairuswatson.net
http://www.ratholecustoms.com
Check out some of the cool stuff on my Fotki!


#8 Martin

Martin

    Checkered Flag in Hand

  • Subscriber
  • PipPipPipPipPipPip
  • 1,318 posts
  • Joined: 22-February 09
  • Gender:Male
  • Location:US

Posted 27 February 2019 - 07:06 PM

Just my 2 cents here. If (big if) I was to build a FWD slot car I would approach in this way. On paper its looks good. all that weight on the guide, the very thing we are trying to keep in the slot with no chance of a wheelie either.

So where I would deviate from convention is keep the axle 90 degrees to the slot. That means the motor drive gears axle and guide are all one unit and articulates with the guide and is separate and the rear part of the frame swings back and fourth as the turns will dictate.

What my theory is trying to solve is the scrubbing that occurs when the drive axle get out of line with the slot. We want the axle to stay pulling 90 degrees to the slot. A simple form of opposite lock with my method. The back end can swing at will but the drive wheels will now pull the car in line with the slot. To give the same result front wheel steering would be something to try, but a lot of complexity there, CV joints and all.

I would try the simple way first. Maybe with an inline open wheel car so the articulating front wheels do not run into the body, but could work with full body cars with room for the wheels to move from there wheel arch centers.


Martin Windmill

#9 Bryan Warmack

Bryan Warmack

    Posting Leader

  • Subscriber
  • PipPipPipPipPipPipPip
  • 3,993 posts
  • Joined: 17-July 07
  • Gender:Male

Posted 28 February 2019 - 12:48 AM

 Yves,

        I've never built a front wheel drive car but the closest I got was this dual motor 4 wheel drive car I built early in the D3 days out here at BPR.

 

P1180958.JPG

 

     It ran pretty good and actually won a D3 King track race in about 2010. Take out the rear motor and you have a front wheel drive car!.....or just take out the gear and leave the extra weight.  I never tried it that way and have my doubts about how a front wheel drive car would work competitively but if you're just having fun building something different the only problems are mounting the guide and the wiring.  :)


  • slotbaker, Steve Deiters, havlicek and 2 others like this

#10 Ramcatlarry

Ramcatlarry

    Posting Leader

  • Subscriber
  • PipPipPipPipPipPipPip
  • 2,422 posts
  • Joined: 08-March 06
  • Gender:Male
  • Location:St Charles, IL 60174

Posted 28 February 2019 - 11:28 PM

Has anyone seen a DS-19 Citreon sedan 1/24-5 model kit?  One inch tires and 1/4" ground clearance should make a usable driver with independent rolling rear wheels.


Larry D. Kelley, MA
retired raceway owner... (for now)
race directing around Chicago-land

 

Diode/Omni repair specialist
USRA 2017 member #404
USSCA  member

Host 2006 ISRA/USA Nats
Great Lakes Slot Car Club member
60+ year pin Racing rail/slot cars in America


#11 Dave Crevie

Dave Crevie

    Checkered Flag in Hand

  • Full Member
  • PipPipPipPipPipPip
  • 1,858 posts
  • Joined: 16-February 09

Posted 01 March 2019 - 02:18 PM

I want to see someone do a 2CV in 1/24th. I saw one in 1/32nd plastic, can't remember who made it. 



#12 MG Brown

MG Brown

    Grand Champion Poster

  • Administrator
  • PipPipPipPipPipPipPipPip
  • 6,079 posts
  • Joined: 16-February 06
  • Gender:Male
  • Location:The Land of Lincoln, where governors make the license plates.

Posted 03 March 2019 - 09:35 AM

It was explained to me some years ago by a great chassis builder that a front wheel drive Slotcar or 1:1 race car will tend to understeer (drive the nose into the wall or a tight condition) where a rear wheel drive (conventional) slot car or race car oversteers and drives the tail out towards the wall (loose).

 

In 1:1 racing they say "loose is fast" and my only guess is because you are in effect lengthening the straight-away(s).

 

Just a comment sharing what I was told in the past.


"I'm just here for the entertainment." George Carlin


#13 Rotorranch

Rotorranch

    What's a title?

  • Subscriber
  • PipPipPipPipPip
  • 956 posts
  • Joined: 22-November 10
  • Gender:Male
  • Location:Atlanta, GA

Posted 03 March 2019 - 12:18 PM

Allard+J2X+04+small.jpgAllard+J2X+02+small.jpg

 

 

https://www.tapatalk...t-car-t259.html

 

No, its not mine, I saw this while looking for something else and thought it was relevant to the thread.

 

Rotor


  • Jairus and slotbaker like this
Jeff Chambers

Posted Image      Posted Image
                                         "Kinky Kar"

#14 Mark Mattei

Mark Mattei

    Mid-Pack Racer

  • Full Member
  • PipPipPip
  • 115 posts
  • Joined: 21-September 07
  • Gender:Male

Posted 03 March 2019 - 12:45 PM

I want to see someone do a 2CV in 1/24th. I saw one in 1/32nd plastic, can't remember who made it.

Hi Dave, here you go.

Attached Images

  • 07B340C1-4C15-45B7-B8E1-FA8FC23E8E7A.png

  • Ramcatlarry likes this

#15 Dave Crevie

Dave Crevie

    Checkered Flag in Hand

  • Full Member
  • PipPipPipPipPipPip
  • 1,858 posts
  • Joined: 16-February 09

Posted 05 March 2019 - 12:15 PM

Great, Mark. Now all I have to do is find one, hope it is reasonably priced, and build a chassis. Yes, I would do it FWD, but I don't

know how I would do the wacky suspension. 



#16 Yves Chapoutier

Yves Chapoutier

    Rookie Keyboard Racer

  • Full Member
  • Pip
  • 23 posts
  • Joined: 20-January 18
  • Gender:Male
  • Location:Chambéry and Paris, France

Posted 05 March 2019 - 02:40 PM

Some great winning front-wheels drive racing cars...

 

lead4.jpg

 

 

lead4.jpg

 

 

lead4.jpg

 

 

lead4.jpg

 

 

lead4.jpg

 

 

 



#17 Yves Chapoutier

Yves Chapoutier

    Rookie Keyboard Racer

  • Full Member
  • Pip
  • 23 posts
  • Joined: 20-January 18
  • Gender:Male
  • Location:Chambéry and Paris, France

Posted 05 March 2019 - 02:43 PM

Sorry...

 

images_list-r4x3w1000-5797832218868-victoire-de-la-mini-au-monte-carlo-1964.jpg

 

citroen-ds19-42-rallye-monte-carlo-1963-bianchi-ogier-spark-s5532.jpg

 

RACER-DB-3.jpg

 

58-  Panhard CD - DSCN5664.jpg

 

 


  • Jencar17 and Samiam like this

#18 Dave Crevie

Dave Crevie

    Checkered Flag in Hand

  • Full Member
  • PipPipPipPipPipPip
  • 1,858 posts
  • Joined: 16-February 09

Posted 06 March 2019 - 02:35 PM

Most Millers were FWD. Yves, you should remember the Deutsch-Bonnet. and Panhard GP and sportsracers. We had a

Devin-Panhard in the VSCDA. The owner passed and the car was sold from the estate. We never found out where it went.

We also had an Austro-Panhard. So FWD cars in vintage racing are around. 



#19 Jaeger Team

Jaeger Team

    On The Lead Lap

  • Subscriber
  • PipPipPipPip
  • 287 posts
  • Joined: 27-January 17
  • Gender:Male
  • Location:Palermo, Italy

Posted 06 March 2019 - 02:51 PM

I would choose that...

https://www.wonderla...ds19-model-kit/

 

https://www.hiroboy....duct--8969.html

 

https://www.spotmode...676&language=en


Maurizio Salerno

#20 Yves Chapoutier

Yves Chapoutier

    Rookie Keyboard Racer

  • Full Member
  • Pip
  • 23 posts
  • Joined: 20-January 18
  • Gender:Male
  • Location:Chambéry and Paris, France

Posted 06 March 2019 - 03:01 PM

Yes Dave, Miller at Indianapolis... An iconic front-wheels drive cars, a fabulous race and all great racers !

 

Many thanks Maurizio but I have a original Citroën slot car body but ''Chut''...

 

Yves



#21 Jaeger Team

Jaeger Team

    On The Lead Lap

  • Subscriber
  • PipPipPipPip
  • 287 posts
  • Joined: 27-January 17
  • Gender:Male
  • Location:Palermo, Italy

Posted 06 March 2019 - 03:51 PM

:secret:


Maurizio Salerno

#22 Yves Chapoutier

Yves Chapoutier

    Rookie Keyboard Racer

  • Full Member
  • Pip
  • 23 posts
  • Joined: 20-January 18
  • Gender:Male
  • Location:Chambéry and Paris, France

Posted 06 March 2019 - 05:04 PM

Winning Miller Front-Wheels Drive at Indianapolis in 1925

 

FWD Miller 1925.jpg



#23 Yves Chapoutier

Yves Chapoutier

    Rookie Keyboard Racer

  • Full Member
  • Pip
  • 23 posts
  • Joined: 20-January 18
  • Gender:Male
  • Location:Chambéry and Paris, France

Posted 11 March 2019 - 09:40 AM

Dears friends,

Opening pics of my Front-Wheels Drive Chassis project. 

It's the first version. I started to work to identify the problems on handling, capacity to turn and speed.

 

Number of framework principes :

  • Indépendante suspension ont the back (with narrow wheels ?).
  • Motor centrally mounted (+ or - with spacer).
  • Steering Front-Wheels (on the second version).

A long drop arm will be mounted.

 

The original lexan body is a French Sedan Streamliner (the back is narrower than the front).

 

Yves

 

Front-Wheels Drive Chassis - 1.JPG

 

Front-Wheels Drive Chassis - 2.JPG

 

Front-Wheels Drive Chassis - 3.JPG

 

Front-Wheels Drive Chassis - 4.JPG

 

 


  • MarcusPHagen and Jencar17 like this

#24 Martin

Martin

    Checkered Flag in Hand

  • Subscriber
  • PipPipPipPipPipPip
  • 1,318 posts
  • Joined: 22-February 09
  • Gender:Male
  • Location:US

Posted 11 March 2019 - 10:55 AM

Go man go. :good:

 

A Go kart, which has a locked rear end, uses flex in the frame to lift one rear wheel. I think you on the right track with your independent rear suspension.

This may allow a front wheel to lift and slide with less scrub.


Martin Windmill

#25 Dave Crevie

Dave Crevie

    Checkered Flag in Hand

  • Full Member
  • PipPipPipPipPipPip
  • 1,858 posts
  • Joined: 16-February 09

Posted 11 March 2019 - 11:21 AM

Wow. That is crazy. I'll be following the construction of it.







Electric Dreams Online Shop