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Manuel Maldonado's 1966 R&C Top Fuel dragster


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#26 Alan Draht

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Posted 17 August 2020 - 05:53 PM

Thanks again, Steve!   :)

 

Milling of the main rails is complete, including the outside shape.

 

The assembly is still bolted together, and with a few "bridges" of metal between the main rails and the surrounding frame, the assembly is held together as a single unit.

 

The top of the frame will be cut free of the rails.  The rails, still bolted together, will be clamped vertically into a pair of mill vises mounted to the mill table.

 

The frame rails are complete except for hand-filing the outer shape and interior openings to final contours matching the scribed lines.

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#27 MSwiss

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Posted 18 August 2020 - 09:14 AM

And years later, in Manuel Maldonado's own words...
 
Hi There, I just got the bug to search and see if anything was on the web regarding Slot Cars that ran in the 60's at the Rod & Custom races. My name is Manuel Maldonado and I built cars for many racers at that time. Chuck Blayney had me build him an altered, won first time out, Then Gary Gabelich wanted a top fuel car, won first time out, now these guy's where racing have years head start on me being around slot car's. Bob Braverman and Gene Hustings where the king's. Chuck and I even went to the race's up in the Bay Area on a Greyhound bus, neither had a driver's license. Set low E T and runner up, always ran good up there, San Jose and San Mateo, Oakland. One race had low E T and got to the final and dropped a chunk of weight in the final and wheel stood and I lost, the guy's running the show asked if I thought I could go faster and I told them yes, so they announced that I would make a single for a track record. The crowed gathered, it was a car show, so there was a big crowd, well this thing gets about 50 feet and blow's both rear tires throwing the car in the air screaming! You could hear a collective OOOOOH from the crow. Sold a car to one guy up there that told me if I could build him a car he could go under 1:20 with a Pittman Motor (he had lots of them) everyone was using the Ram 7 poll now, he would be able to win races. First run right out of the box it went 1:18. The other car I sold up there the guy never paid and when I asked for it back it was in peices and you could see the lead from the pencil tracing the parts! I quit building cars for people right then. I did go into Gene Hustings and Bob Braverman's home track and beat them both, then I got drafted and served in Viet Nam as a gunner on a Huey. When I came back the sport was gone. This article came out well I was in Aberdeen proving grounds in the service. I still have this car! They had a slot car exhibit at the Peterson Museum a few months back, all road race stuff, no dragsters when I showed them my car I got run around to all the guys putting on the exhibit and a few collectors wanting to buy the car! They stopped at $50,000.00 I loved those days Rod and Custom had a race at a different track each month and it was a dog fight, had top time more than once, bragging right's was always worth a lot in drag racing. Manuel

Alan,
You're doing a terrific job on this car, just as I expected.

Manuel had a great sense of style.

His rail is stunning.

By his above letter/post, he wasn't without confidence.

A bit of swagger is good, in winning races.

That said, something about the end of that letter is a bit odd.

A fair amount of detail, but something is missing.

No payoff on the $50K comment.

Did he sell it?

Or had he already declared, it was not for sale, and the unnamed 2 collectors were just posturing, with no chance of having to put up.

It's hard for me to believe there are 2 slot car collectors, willing to put up that kind of money.

Maybe, there is one.

And if he(Scott Bader) had it, I think we would know about it.
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#28 Alan Draht

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Posted 19 August 2020 - 09:44 AM

Agreed.  The $50,000 is bizarre.  Maybe Manuel meant $5,000 and mis-typed the number.

 

I found this Maldonado quote online years ago on a website devoted to vintage slot car and full-size drag racing.  That website is now defunct.  I don't think the quote was dated; I would have looked for that, but maybe I missed it.

 

Depending on when he wrote that story, $5,000, adjusted for inflation, would be worth more in today's dollars.

 

$50,000? Forget about it.   :laugh2:

 

At least we know Manuel wrote that story during the age of the internet because he starts out by saying... 

 

Hi There, I just got the bug to search and see if anything was on the web regarding Slot Cars that ran in the 60's at the Rod & Custom races.

 

Manuel refers to the Petersen Museum slot car show that occurred a "...few months back".

 

Perhaps the slot car historians among us here on Slotblog can pinpoint that Petersen Museum show's date.  Maybe Manuel Maldonado left other footprints in "the cloud", and he could easily be alive still.

 

I myself haven't looked further into the car's or Manuel's history.  Right now I'm just trying to build a decent copy of the dragster as it appeared in the 1966 R&C race reports.   :D



#29 Alan Draht

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Posted 19 August 2020 - 09:47 AM

...

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#30 Alan Draht

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Posted 21 August 2020 - 05:55 PM

The main rails are done.  Next come the small triangular armature shaft carriers.  Machining the triangular shapes requires a rotary table.

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#31 Alan Draht

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Posted 21 August 2020 - 05:56 PM

...

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#32 SpeedyNH

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Posted 21 August 2020 - 06:06 PM

i liked the dueling mill vises. 


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#33 Alan Draht

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Posted 23 August 2020 - 11:53 AM

Yes, so I use a pair of aligned mill vises to hold long workpieces.  Once I'm done using that set-up for everything I need to get done through this stage of the project, I dismantle it.

 

The next stage of fabricating the car's frame is to complete machining the pair of small, 1/16" thick, isosceles-shaped magnesium triangles that hold the motor's armature into a position of -- hopefully, if I've done my job right -- square and perfect alignment with the frame and all key components of the motor and drivetrain.



#34 Alan Draht

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Posted 23 August 2020 - 11:55 AM

I use a rotary table for this process because of the angles involved with the workpiece.

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#35 Alan Draht

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Posted 23 August 2020 - 12:03 PM

I mount a 6" diameter round sacrificial aluminum work plate (which Sherline makes specifically for rotary table use) to the rotary table.

 

I mount the workpiece, with the 1/4" bearing hole centered on the rotary table/ aluminum plate's center, and I machine first one and then the other long side of the pair of triangular shaped armature carriers.

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#36 Alan Draht

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Posted 23 August 2020 - 12:04 PM

...

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#37 Alan Draht

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Posted 23 August 2020 - 12:11 PM

To check alignment visually, the pair of armature carriers, still bolted together as one unit, are temporarily overlaid on the main frame assembly with three straight-pins inserted into the carrier mounting holes.

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#38 Alan Draht

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Posted 23 August 2020 - 12:16 PM

The rear mounting tabs of the armature carriers remain to be machined to match the rear end silhouette of the main rails.

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#39 Alan Draht

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Posted 23 August 2020 - 12:16 PM

...

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#40 Alan Draht

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Posted 23 August 2020 - 12:18 PM

Once the armature carriers' rear mounting tabs are shaped to conform with the main rail profile, the pair of carriers will no longer be bolted together.

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#41 SpeedyNH

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Posted 23 August 2020 - 02:12 PM

that's a really sharp plate you've got there! needle sharp in fact. 

(sorry about that) nice milling. 


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#42 Alan Draht

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Posted 26 August 2020 - 05:02 PM

Thanks, Steve!   :)

 

The "triangles" are cut apart/ unbolted from one another, but the straight pins keep the the pair in alignment while they're clamped into the mill vise for filing.  

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#43 Alan Draht

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Posted 26 August 2020 - 05:05 PM

Work in process...

 

The front dagger point has been rounded.

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#44 Alan Draht

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Posted 26 August 2020 - 05:16 PM

I used a lathe and 0.250" diameter round aluminum bar stock to make a pair of brush holder posts duplicating the ones incorporated into the Ram motor's cast-metal stock endplate.

 

 

 

 

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#45 Alan Draht

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Posted 26 August 2020 - 05:33 PM

The holes for these posts in the left frame rail are sized for a 00-90 thread tap.

 

The original thinking was that the posts would be center-drilled and tapped for 00-90 threaded rod.  The rod with the aluminum post would be screwed into the frame rail.

 

But as I was turning the posts on the lathe, I realized that 00-90 size "pins could easily be turned and incorporated into the part in the same machining operation.

 

The brush holder posts will be installed on the inside face of the left frame rail by epoxying and inserting the post pins into their mounting holes.

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#46 Alan Draht

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Posted 26 August 2020 - 05:39 PM

In process:  the main frame rails and the triangular-shaped armature carriers...

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#47 Alan Draht

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Posted 26 August 2020 - 05:42 PM

The main rails were finally unbolted/ cut apart from each other and filed.

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#48 Alan Draht

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Posted 26 August 2020 - 05:44 PM

Brush holder posts were temporarily test-fitted on the inside face of the left frame rail.

 

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#49 Alan Draht

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Posted 26 August 2020 - 05:47 PM

This is the Ram 857 6-volt motor I'll be using to build the Maldonado dragster with.

 

 

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#50 Alan Draht

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Posted 26 August 2020 - 05:51 PM

This is the actual 6-volt Ram armature that will be going into the dragster's motor.  It has already been epoxied.  It was done together with another 6-volt Ram armature that went into the Husting dragster build.

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