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Jim Lyle's "Big Al" slot car


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#1 Roar Sørensen

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Posted 18 February 2014 - 07:40 AM

Resin body, Pittman Boatmaster 9003 3-6V motor, scratchbuilt chassis.

r1.jpg

r2.jpg
  • endbelldrive, Big Durl, Joe Mig and 2 others like this




#2 havlicek

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Posted 18 February 2014 - 08:36 AM

Beautiful!

 

-john


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#3 SlotStox#53

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Posted 18 February 2014 - 09:43 AM

Just wow! Superb car and what a huge motor!!

Heard of the Boatmaster motor but have never seen one.. :shok:

#4 boxerdog

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Posted 18 February 2014 - 10:38 AM

Outstanding!!!


David Cummerow

#5 Cheater

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Posted 18 February 2014 - 11:28 AM

Roar's creativity is off the charts...

Gregory Wells

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#6 munter

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Posted 18 February 2014 - 06:10 PM

Awesome, mate.


John Warren
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#7 Mark H

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Posted 18 February 2014 - 08:08 PM

Dang cool! That's quite the appropriate motor as the real car had a huge Allison airplane engine. It was also the first drag car to have a full fiberglass body I believe.


Mark Haas

#8 don.siegel

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Posted 19 February 2014 - 05:22 AM

Another great car, Roar.

 

For those of you not familiar with the 9003, this Pittman boat motor was actually used on a few early drag cars, ca 1962... and yes, it weighs more than many complete cars!

 

Don



#9 idare2bdul

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Posted 19 February 2014 - 09:18 PM

Creative and well done!


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#10 Matt Sheldon

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Posted 19 February 2014 - 09:37 PM

Do the lights dim or the batteries puff smoke when you pull the trigger?  :)

 

Great build!


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Matt Sheldon

 

 

 

 

 

 

 

 


#11 Roar Sørensen

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Posted 21 February 2014 - 10:04 AM

The main problem in this build was the limitiations posed by the body and the sheer size of the motor. In addition to its height, it also has a hefty "belly" below the motor shaft.

 

The fenders limited the diameter of the rear wheels I could use, and the height of the motor dictated that I had to squeeze it in behind the windshield. This meant that the motor had to go as far back in the chassis as possible.

 

Because I couldn't set the motor at an angle and line it up with the rear axle (impossible because of the body), the motor would stick down below the rear wheels... This was solved by building a bracket with a short 1/8" axle stub running through a ballbearing and with a pinion on each side in line with the rear axle. The motor pinion drives this extra axle from above. It holds up well. The motor now clears the ground by 2 mm... The use of a crown wheel with the allen screw on the back side of the crown (by Classic I believe), and by making those extra pinions as short as possible, meant that I had JUST enough room at the back to pull this one off.

 

It weighs in at a measly 335 grams.  :)



#12 don.siegel

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Posted 21 February 2014 - 10:59 AM

Good lord, Roar, that's something like 3/4 of a pound!
 
Here's a standalone shot of the motor; mine came with a built-in fuse system - did yours? (You can see the clips for the fuse in the second photo.) I've added another photo alongside a Pittman style AC motor - also a hefty one!
 
If I remember right, the 9003s used for the early '60s drag cars did mount the motor at an angle.
 
Pittman9003.jpg
 
Pittman9003ACmotor.jpg
 
Don



#13 Roar Sørensen

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Posted 21 February 2014 - 12:53 PM

Mine originally came with a fuse, but I replaced it with a piece of brass tube. Love that other big Pittman. Any idea what type of Pittman that is?

 

Here's the car that set me on the 9003 trail. It was on eBay a few years back, and I just lost out on it. It came with an open Ford Thunderbird body so that angled motor was no problem. At first I wanted to build a copy, but then decided an original build with a BIG AL body would be perfect for it. Any Slotblogger end up with it?

 

$(KGrHqYOKo0FH,tDVjshBR6eyUSRgg~~60_57.JPG



#14 Paul Jurczyszyn

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Posted 22 February 2014 - 11:15 AM

I'm not a drag racer but that car is the bomb...... Master crafter .
Love to see more...
Parma Paul
Humble student of the master slotters

#15 Mark H

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Posted 22 February 2014 - 12:11 PM

Mine originally came with a fuse, but I replaced it with a piece of brass tube. Love that other big Pittman. Any idea what type of Pittman that is?

 

Here's the car that set me on the 9003 trail. It was on eBay a few years back, and I just lost out on it. It came with an open Ford Thunderbird body so that angled motor was no problem. At first I wanted to build a copy, but then decided an original build with a BIG AL body would be perfect for it. Any Slotblogger end up with it?

 

attachicon.gif$(KGrHqYOKo0FH,tDVjshBR6eyUSRgg~~60_57.JPG

i think i remember that car from ebay. look at that gasser nosebleed stance!


Mark Haas

#16 ossamoto

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Posted 10 March 2014 - 10:05 PM

:crazy:  :good:


Gary Quinn

#17 Slot Car Mods Magazine

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Posted 27 February 2016 - 12:35 AM

What a stunning build...!!!

 

:good:


Ron Todhunter
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