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Modifying my Porsche 917/30 slot car


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#1 Slot Car Rod

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Posted 06 May 2022 - 10:49 PM

This is the third chassis for my TrueScale brand Porsche 917/30.  The body is a pre-production version Victor gave me decades ago.  I painted the body with acrylic paint
 
I decided to replace the semi-modern Champion brand chassis with a vintage MESAC-style scratch-built chassis.  The basic chassis came from the Oakland Speedway junkyard. This chassis has a unique hand-cut drop arm and side pans.  Also, the pans tilt using torsion rods instead of hinges. Very clever design.
 
I totally rebuilt the chassis with a longer wheelbase and to fit much larger diameter tires.  As previously discussed with Rick, it takes me longer to rebuild and modify a chassis than to build one from scratch.   
 
The motor is a Mura C can with a Mura 28 single armature.
 
Does the car go faster than the previous Champion chassis/Falcon 7 motor version?  Probably not, but the car now fits in with my MESAC collection.  
Thanks for all of the slot car bodies and parts over the years, Victor.
 
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Rodney Chew




#2 spudboy

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Posted 08 May 2022 - 08:11 PM

SWEET!


Nate "spudboy" Bemis

#3 Slot Car Rod

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Posted 11 May 2022 - 05:04 PM

Thanks Nate.  Eric requested a picture of other 917 slot cars.

 

917s.jpg

 

 

 

 


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Rodney Chew

#4 Slot Car Rod

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Posted 12 May 2022 - 12:43 PM

917 and 914.  Race cars were not big back then.

 

917 914 red.jpg


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#5 MSwiss

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Posted 12 May 2022 - 12:53 PM

I sat in a friend's 914 about 3 years ago, when he drove it to a Wednesday night race.

 

IIRC, I had to grab his arm to get back out. LOL


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#6 Slot Car Rod

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Posted 12 May 2022 - 04:43 PM

Yes, almost sitting on the floor with a 914.  I had a '73 914 2.0 many years ago.

 

1973 Porsche 917/30 and a 2006-2008 Porsche LMP2 Spyder.  Decades apart.  Both cool.

 

917 & Spyder.jpg


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Rodney Chew

#7 Slot Car Rod

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Posted 21 April 2023 - 09:34 PM

I modified the chassis with the addition of floppy pans. This addition allows the pans and body to transfer weight better to the chassis (over the previous thin torsion bar setup).  The rear grip has been increased making the car much easier to drive.  Now I want to install a Steube Gp20 armature.

por103.jpg

 

por102.jpg

 

por101.jpg

 

por104.jpg

 

pors105.jpg

 

 


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Rodney Chew

#8 Slot Car Rod

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Posted 24 February 2024 - 10:16 PM

My 917/30 chassis was modified again to improve the handling.  More rear traction was desired.  Trimming off the front brass wings, increasing the rear ride height (car was bottoming out), stiffening the bracing in front of the motor, and stiffening the plumber cross bracing helped a lot.  I have also been trying out various brands of treated tires.

 

917 2.jpg

 

917 2.jpg

 

917 3.jpg

 

 

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Rodney Chew

#9 James Wendel

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Posted 25 February 2024 - 02:57 AM

The body and chassis look great.  Not a fan of the driver though... looks out of scale, small.


You can't always get what you want...

#10 Slot Car Rod

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Posted 27 February 2024 - 02:09 AM

Mark.

mark.jpg


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#11 Dave Crevie

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Posted 27 February 2024 - 09:46 AM

Two at Laguna Seca (Weathertech)

 

https://youtu.be/7mC...9JY8sEmpf72ofzd

 

 

At the Goodwood hillclimb, with Bran Redman. Too much talking, but, Brian is one of my favorite drivers. Always has time for you, and an exceptional storyteller.

 

https://youtu.be/Jg4...Rc45RyikS6ivima

 

 

Bobby Rahal has a 917/10. One early morning at the July vintage race at Road America, I had a chance to poke my nose around it while the body sections were off. At a time when all other constructors had gone to monocoque style chassis, Porsche was still building chassis from tubing, in a birdcage style. Only the Shadow, which was essentially an F-1 car, could run with it.


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#12 Jay Guard

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Posted 27 February 2024 - 07:08 PM

I think the Sunoco Porsche 917/30 is the most beautiful (and brutal) racer of all time.  Next favorite is probably the Sunoco Ferrari 512M.  I'm detecting a pattern thare. :D


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