Traxxas Sprint Car

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Re: Traxxas Sprint Car

Post by scr8p »

The 67 vette I'm currently working on has a new composite rear leaf.

20240118_114336.jpg

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Re: Traxxas Sprint Car

Post by RogueIV »

XLR8 wrote: Thu Jan 18, 2024 3:32 pm The chassis looks interesting.
I drove a C4 Vette for many years and they used a single transverse leaf spring at both ends and they were PLASTIC! :shock:
We prefer the word 'Composite' It's more fancy. I had a '90 Olds Trofeo that also used a transverse leaf spring. It's a pretty neat way of lowering CG and saving space.
Consistency is the key I keep misplacing.

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Re: Traxxas Sprint Car

Post by Dangeruss »

Retail is $589?

Apparently the leaves are plastic and the knee action shocks have torsion springs wound into them...

Vids for those who cannot live on pics alone...





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Re: Traxxas Sprint Car

Post by XLR8 »

RogueIV wrote: Thu Jan 18, 2024 5:04 pm
XLR8 wrote: Thu Jan 18, 2024 3:32 pm The chassis looks interesting.
I drove a C4 Vette for many years and they used a single transverse leaf spring at both ends and they were PLASTIC! :shock:
We prefer the word 'Composite' It's more fancy. I had a '90 Olds Trofeo that also used a transverse leaf spring. It's a pretty neat way of lowering CG and saving space.
That's interesting. I wasn't aware that Olds also used a transverse leaf.
Anyway, as you've pointed out, there's nothing wrong with the springs. Actually, the type of spring used isn't nearly as important as the shock absorber -- we know that from tuning our off-road buggies. The Traxxas sprint car appears to be using early friction disc shocks. Not as effective as fluid shocks but I reckon they are period correct.
I also like the spoked wheels. Very cool!
Doug

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Re: Traxxas Sprint Car

Post by Dangeruss »

And... First one sold...

www.ebay.com/itm/166553976330
Traxxas Sprint Car Sold.JPG

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Re: Traxxas Sprint Car

Post by Dangeruss »

Also, for those interested... footage of one running:



... and FPV footage:


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Re: Traxxas Sprint Car

Post by Lowgear »

Before I bought my 68 Camaro, I swear I looked at another one that had fiberglass monoleafs on it. Mine has steel ones, and the back would sag so much under acceleration the tires would rub the fenders. For a quick and temporary fix, some new VW dune buggy coilovers went in place of the shocks. :lol: ...They're still on it 25 years later. :roll:

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Re: Traxxas Sprint Car

Post by Frankentruck »

It's kind of funny that this sprint car discussion is in the 21st century modern sub forum.
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Re: Traxxas Sprint Car

Post by RogueIV »

Dangeruss wrote: Fri Jan 19, 2024 10:26 am Also, for those interested... footage of one running:



... and FPV footage:

That actually goes pretty quick and I have to say that FPV footage is pretty fantastic
Consistency is the key I keep misplacing.

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Re: Traxxas Sprint Car

Post by Dangeruss »

Frankentruck wrote: Fri Jan 19, 2024 11:33 am It's kind of funny that this sprint car discussion is in the 21st century modern sub forum.
I put it in the vintage Traxxas forum... thus the lead in, "It doesn't get any more vintage than a 1920's sprint car...

...then I woke up and *poof* it was in 21st century modern.

I think Lowgear likes to go *poof* in the night... :P :lol:

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Re: Traxxas Sprint Car

Post by 1911Colt »

I would love for this to catch on and become a new oval class. Not Traxxas, though. Tamiya would probably be best given their expertise with scale accuracy.

Fun fact, Cecil Schumacher runs a vintage Talbot Lago grand prix car and he is also among the world's top mechanics specializing in pre-war racing transmissions. Maybe this will catch his eye....ok it won't happen, but it would be cool if it did.
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Re: Traxxas Sprint Car

Post by RC10th »

scr8p wrote: Thu Jan 18, 2024 4:47 pm The 67 vette I'm currently working on has a new composite rear leaf.


20240118_114336.jpg
Interesting jack stand placement....
I was old school - when old school wasn't cool !

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Re: Traxxas Sprint Car

Post by scr8p »

RC10th wrote: Fri Jan 19, 2024 11:03 pm
scr8p wrote: Thu Jan 18, 2024 4:47 pm The 67 vette I'm currently working on has a new composite rear leaf.


20240118_114336.jpg
Interesting jack stand placement....
It's a roadster, so when it's just on the lift, the rear hangs. Fitting the doors the rear needs to be supported. Easy enough to put them there... doesn't hurt anything.

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Re: Traxxas Sprint Car

Post by Dangeruss »

1911Colt wrote: Fri Jan 19, 2024 10:36 pm I would love for this to catch on and become a new oval class. Not Traxxas, though. Tamiya would probably be best given their expertise with scale accuracy.

Fun fact, Cecil Schumacher runs a vintage Talbot Lago grand prix car and he is also among the world's top mechanics specializing in pre-war racing transmissions. Maybe this will catch his eye....ok it won't happen, but it would be cool if it did.
Fun fact indeed.

I think a scale suspension vintage sprint car class would be cool.

For now, the first Traxxas sprint car race:



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Re: Traxxas Sprint Car

Post by Dangeruss »

and... for those interested, a longer, more in-depth look at the car:




The wheels were kinda cool... I expected them to be solid with a mesh cover but it turns out there's lacing in the perimeter of wheel center.

I foresee someone gutting one of these to build a period hot rod. Actually, if Traxxas releases the car and parts to the general market it creates the possibilities of period hot rods becoming something the average enthusiast could build. How cool would a vintage drag racing class with tall skinny tires be... or Bonneville style cars... rat rods... an untapped market just waiting for someone like Traxxas to exploit it! :lol:

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