100 replies to this topic

[Bruce Wayne]

-Please clarify "GTP" hardbody?? They make those?

GTP starting grid from BPR's most recent monthly race series

These are all based on 1/24 Tamiya, Hasagawa or Fujimi model kits. Most are typically 3.25" wide with flat rockers, so easy to convert to slot cars.

Check out Keith Tanaka's SoCal D3 website and race reports in the 1/24 Racing forum for more examples and links to rules etc.

[Bruce Wayne]

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[Pablo]

My plan has changed somewhat. The center section is extremely heavy, but the body is lightweight.

I doubt adding pans on this car will provide any benefit, but I can add some later if needed.

 

Front wheels are torsioned via .055" wires soldered to the center section 1/4" amidships

 

 

Body mounts are .063 tubes installed and held with retainers through .078 holes in the chassis - little bit of wiggle and slop

 

[olescratch]

Always filled with interesting examples of craftsmanship!  Nice!

[Pablo]

Thanks, John

 

Rear body tubes cut and keepered to make room for the motor.

Wires installed and motor secured front and rear.

 

 

As a precaution to ensure nothing got bound up tightening 'er down, I gave the motor a test.

She sounds fine and draws exactly the same amps at 3 volts she did during breakin

[Pablo]

Assembly is "roughly" complete and ready for track test Saturday.

Rear wheel inserts, body paint, tuning changes, etc. will come later.

 

Drivetrain test with the vintage gears was OK, not great - I can see the Cox crown distort as I apply power.

It was never designed for this much power. It may be just fine on the track - we shall see.

If it's noisy, I'll make changes until it's perfect.

 

 

My front wheel torsion assembly seems to do exactly what I wanted -

as I give the car a slight twist, the wheels lift yet apply some resistance.

 

Jet Flag is secured via a (genuine) Cobra Phase III weight.

TQ 20 gauge lead wires, old school clips, and JK soft braids

 

 

 

[Pablo]

Track test results -

the good:

-handling is amazingly good; no doubt the tonnage helps, along with the torsion fronts and floating body mounts

-motor ran sweet and it scoots pretty good for a brick

-zero deslots after about 20 laps

-had fun chasing Billy Watson's Kemtron '34 Ford around

 

the bad:

-I missed the gearing somewhat - and the Cox is noisy - so I will be changing to a (dyed) 35T Parma Pink

-Billy made me a thicker body with 20 thou - the current one is too flimsy for such a heavy car

[havlicek]

 

 

and the Cox is noisy - so I will be changing to a (dyed) 35T Parma Pink 

 

Hey Pablo.  Have you ever tried the "putting a flame to the gear while it's turning" thing?  I've never done it, but I saw it posted here some years back and it's supposed to turn noisy gears into unobtanium-silkey-smooth beauties...er something like that. 

[Pablo]

Do it all the time, John 

See drivetrain test results in my post #31.

 

I heated this Cox but it isn't a gear mesh issue - as I apply power I can see the Cox distort.

A mass produced 50 year old gear designed for a stock 36D simply isn't capable of handling a motor and a car like this.

 

Keep in mind the H 36D is spinning a pretty big, heavy pinion here, also.

The Parma pink will be fine. Only question is, blue or black Rit dye?

[havlicek]

 

 

Only question is, blue or black Rit dye? 

 

 

...anything but Pepto-Bismol pink! 

[Pablo]

Parma pink 35T dyed really dark blue, and a new thicker Billy Watson body (ready for paint)

 

[Pablo]

This one is for John H. I took the Cox and secured it to a dummy axle.

Pried it right off the hub with just my strong meaty fingers

 

 

Then tried to fold it into a taco shell for fun

 

 

Don't try this with a Parma, you'll only hurt yourself

Note to self, do not even attempt to use any of the big vintage crown gears with H Power motors.

[havlicek]

Those are some serious gear-pullin' fingers you got there Pablo! 

PS:  I AM surprised that the gear is that easy to mangle!

[Pablo]

The bigger they are, the more leverage you have

My friend Bud Greene has been known to fold a complete car into a taco when he's not pleased with it

[Pablo]

I hated to disassemble the car to make minor improvement modifications to the pin tubes, but it had to be done.

Front tube received a strengthener wire in the middle

 

 

Rear tubes are soldered solid now; no more wiggle.

I realize this goes against traditional thinking of more movement rear and less front, but "it is what it is"

 

[Pablo]

Help! Where can I find "American Mag" style inserts, approx. .568" (14.44 mm) OD?

[Horsepower]

I have 4 @ around .576.

[Pablo]

PM sent, thanks Gary!

[Pablo]

Re-assembled with the dyed Parma 35T crown.

Drivetrain test #2: much better

 

[Pablo]

What do you think about this Lego warrior as a driver? Bad to the Bone, or, stupid?

When I found him he had a grenade, a pistol, and a flak jacket

 

 

[bluecars]

COOL!

[Pablo]

Thanks Red. We both like him, so he stays

A piece of tape to secure him atop the motor and a steering wheel is all he needs

[Samiam]

Perfect driver. But give him his gun back. He's got 2nd Amendment rights too.

[olescratch]

Give him all his armament, he may need it soon to deal with the competition.  May even give the build a theme, not that it doesn't have one.

[Pablo]

OK how about the MP-5 in one hand and the wheel in the other?