Improving the Cox chassis!..chassis finished!!

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Improving the Cox chassis!..chassis finished!!

Postby chrisguyw » Mon Nov 07, 2016 4:44 pm

Hi Folks, For those that know the Cox chassis, this thread will have some interest, as you will be able to see/understand the modifications.........for those not familiar with the chassis, please feel free to look at the pretty pictures!! :)

My first "serious" 1/24 slot car was a Cox Team Modified Cheetah.......Or at least I thought it was serious until I got blown away by the Russkit Carrera's and the hybrid Dynamic/brass scratchbuilts, on my first visit to the local commercial track. At that point I turned my back on the Cox cars, in my search for speed.

Years later, I still love the cars, and with a lot of vintage racing going on in Europe, I have committed myself to trying to get one going......well enough to travel to France and the Bordeaux vintage meet.

Three things need addressing with this chassis...1/ lower the front ride height, but still use scale sized wheels/tires, 2/ Freeze the drop arm, and allow for some guide height adjustment, and , 3/ add a lot of weight low and to the sides via body pans.

I did want to engineer something that was simple, and would not require altering the original chassis, in case I wanted to return it to stock.

The following pics. are of the results

Cheers
Chris Walker

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Last edited by chrisguyw on Sat Nov 12, 2016 8:02 am, edited 1 time in total.
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Re: Improving the Cox chassis!

Postby gonegonzo » Mon Nov 07, 2016 5:05 pm

Fantastic >>>>> give us more .

Gonzo
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Re: Improving the Cox chassis!

Postby HomeRacingWorld » Mon Nov 07, 2016 8:14 pm

That's slot car art.
-Harry

"They didn't say you couldn't" - Smokey

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Re: Improving the Cox chassis!

Postby BARC 1 » Mon Nov 07, 2016 8:30 pm

Beautiful. I love that Cox chassis, just because.

Cheers


Dan
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Re: Improving the Cox chassis!

Postby mattb » Mon Nov 07, 2016 10:43 pm

Nice work. As high as those chassis set, I would probably put a full pan under the chassis and set the frame on top of the chassis. One thing I learned from a friend in OZ, the Lotus 40 body is the lowest center of gravity of all those bodies and that is what was always the fastest Cox car in their annual Cox mag frame races.

It is funny that Cox has become the car for collectors, due no doubt to the great packaging and scale model quality. They were one of the poorest performing cars of the 60's. The iso chassis was a great improvement, even if a little late in the game.

Those Cox cars do look great on the shelf!
pix of a few...old slot cars and tracks
http://s229.photobucket.com/user/matts65/library/
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Re: Improving the Cox chassis!

Postby chrisguyw » Tue Nov 08, 2016 8:13 am

mattb wrote:Nice work. As high as those chassis set, I would probably put a full pan under the chassis and set the frame on top of the chassis.


Matt, You could certainly put a pan under the chassis, but, I chose to reposition the front axle tube, ..higher than stock. This obviously lowers the front end cg., and by having the pans and the chassis bottom level, and ,close to the track, a lower cg. is achieved, than by hanging the pan beneath the chassis. The Dino chassis (FT16D), was designed to run with much smaller dia. rear wheels/tires than the other Cox 1/24 mag. chassis, so not only does it have a much lower cg., (sits lower), the narrow width of the FT16D (compared to a 36D), allows gear ratios in the 4 to 4.5 to 1 range.

Cheers
Chris Walker
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Re: Improving the Cox chassis!

Postby mattb » Tue Nov 08, 2016 12:45 pm

I see. I didn't realize you had the Dino frame, I thought it was probably a team modified frame. It is really nice work. Those Dinos are great models.
pix of a few...old slot cars and tracks
http://s229.photobucket.com/user/matts65/library/
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Re: Improving the Cox chassis!

Postby chrisguyw » Tue Nov 08, 2016 1:19 pm

mattb wrote:I see. I didn't realize you had the Dino frame, I thought it was probably a team modified frame. It is really nice work. Those Dinos are great models.



Hi Matt, My bad for not mentioning it was a"Dino" frame, which is as you know a "Team Modified" design, with the added benefit of utilizing the FT16D motor instead of the 36D.........handles much better, and the relative small width of the 16D, allows some fairly high numeric gear ratios, without the spur grinding on the track.

As a bonus, the body mount holes on the 16D Dino chassis are identical to those on the 36D Team modified chassis, so the Dino frame can be bolted on to the Lotus, Cheetah or the Chaparral with no mods necessary. While the Dino body is as low, and a snick lighter than the Lotus, the lotus is considerably wider, so the Lotus is (as you mentioned) a better race body.

Cheers
Chris Walker

PS the following pics., are of a Dino I built a few years ago

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Re: Improving the Cox chassis!

Postby Audi1 » Wed Nov 09, 2016 5:32 am

HomeRacingWorld wrote:That's slot car art.


Yes, it is.

Allan
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Re: Improving the Cox chassis!

Postby VTECFOUR » Wed Nov 09, 2016 12:29 pm

Wow! This is so timely for my winter project.

Image

Did you paint your Dino's body? If so, what paint?

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Re: Improving the Cox chassis!

Postby chrisguyw » Wed Nov 09, 2016 4:02 pm

VTECFOUR wrote:
Did you paint your Dino's body? If so, what paint?

Dan


Hi Dan, Yes it is painted........Tamiya TS-8 Italian red

Cheers
Chris Walker
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Re: Improving the Cox chassis!..chassis finished!!

Postby chrisguyw » Sat Nov 12, 2016 8:07 am

The rolling chassis is all finished.......For Vintage Racing rules, all parts must be period correct...in this case, parts must be from mid 60's.
Now, on to the Body!

Cheers
Chris Walker

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Re: Improving the Cox chassis!..chassis finished!!

Postby mattb » Sat Nov 12, 2016 9:09 am

Outstanding work. Here's a couple pix in regard to your track and the Simoniz car. Look familiar?
P1010006.JPG
P1010006.JPG (186.47 KiB) Viewed 373 times
P1010015.JPG
P1010015.JPG (200.79 KiB) Viewed 373 times
pix of a few...old slot cars and tracks
http://s229.photobucket.com/user/matts65/library/
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