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Mid '70s plumber chassis ID please


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#1 Pablo

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Posted 12 August 2026 - 03:36 PM

This very well designed full plumber left side can drive anglewinder was bought used in Virginia in about 1987.

I am restoring it with all new wires and bits.

 

IMG_5130.JPG

 

IMG_5134.JPG

 

"Ts" or "T5" engraving on the nosepiece. I'm wondering if anybody has info on the original builder, please?

 

IMG_5185.JPG

 

 


Paul Wolcott





#2 jimht

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Posted 12 August 2026 - 04:29 PM

If that's a one piece .078" main rail it could be a GRP (Paul Gelman) with floppy pans added later.


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Jim Honeycutt

 

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#3 Pablo

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Posted 12 August 2026 - 05:39 PM

It is single .078 main rails and also uses a combination of .063/.055/.032.

The guy was obviously a master. Not one single piece had stress memory


Paul Wolcott


#4 MSwiss

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Posted 12 August 2026 - 05:42 PM

It's not early 70's.

 

Below is a  Billy Steube chassis PDL identified to be 1975 and it's still "earless".

 

It looks like it might be a modified Parma, but more likely, just used the same nose Parma used.

 

Pictured is the chassis I got with a Parma $50 retail RTR I15 car in late '81.

 

It's obviously modified, broken, and missing a rail in the motor box, but it ran well enough new, on stock form, it got me started on 45 years of a 2nd go at slot racing. Lol

 

Screenshot_20260812_172204_Chrome.jpg

 

Screenshot_20260812_172130_Chrome.jpg

 

20260812_164920.jpg

 

20260812_164926.jpg


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Mike Swiss
 
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#5 Pablo

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Posted 12 August 2026 - 06:34 PM

Thanks. I fixed my title to "Mid 70's"  :D


Paul Wolcott


#6 jimht

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Posted 12 August 2026 - 07:26 PM

It looks more like a modified International 15 chassis which would move it into the Eighties.


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Jim Honeycutt

 

"I don't think I'm ever more 'aware' than I am right after I hit my thumb with a hammer." - Jack Handey [Deep Thoughts]


#7 Bill from NH

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Posted 12 August 2026 - 07:27 PM

TS or T5 might be the former owner's mark. That's why I always engraved my chassis on the bottom. The design of this chassis looks very much like what Tony P built with .078 rails in the mid-70s. Since it came from VA, it might have been built by someone such as Mitch Kiel of Camen.


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#8 mreibman

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Posted 13 August 2026 - 07:45 AM

It looks more like a modified International 15 chassis which would move it into the Eighties.

Wasn't I15 limited to single hinge then?


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#9 MSwiss

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Posted 13 August 2026 - 03:26 PM

If that's a one piece .078" main rail it could be a GRP (Paul Gelman) with floppy pans added later.

I was contacted by a non-Slotblogger friend of Paul and they jointly confirmed it's not a GRP.

 

 

 

 

It looks more like a modified International 15 chassis which would move it into the Eighties.

 

 

Wasn't I15 limited to single hinge then?

It was. Hence the word, "modified" in jimht 's post.
 


Mike Swiss
 
Inventor of the Low CG guide flag 4/20/18
Former IRRA® Components Committee Chairman
Five-time USRA National Champion (two G7, one G27, two G7 Senior)
Two-time G7 World Champion (1988, 1990), eight G7 main appearances
Eight-time G7 King track single lap world record holder

17B West Ogden Ave., Westmont, IL 60559, (708) 203-8003, mikeswiss86@hotmail.com (also my PayPal address)

Note: Send all USPS packages and mail to: 692 Citadel Drive, Westmont, Illinois 60559


#10 Mr. M

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Posted 13 August 2026 - 04:54 PM

Tech Inspectors initials?


Chris McCarty

#11 Bill Seitz

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Posted 13 August 2026 - 05:59 PM

Most if not all of the chassis in Mark's photo are from the 80's, and I suspect Pablo's chassis is also. The early days of G15 and its chassis and cost restrictions prompted a bunch of relatively simple production chassis designs, chassis kits, and chassis components. The brass winged nose on Pablo's chassis is the one Parma sold and is on the Parma Monorail chassis that Mike Swiss has shown. Other brands may have sold this nose, too, but I acquired all mine from Parma. I've seen this pre-formed .078 main rail , sure I used a few, but don't recall who was selling it, maybe Parma again. The chassis design features are all pretty common to chassis I remember from the 80's. They may have originated in the 70's, but were clearly used by various people in the 80's. There were more than a few racers building chassis like this in that period including me, so unless someone recognizes the identifying engraving, it'll likely be difficult to make a specific ID.

 

Boxstock 15 came along circa 1990 and continued the production of these simpler mono rail chassis. Another common production chassis was the one sold by ProSlot, Racer-X, and RTR. It has a wider 1-piece pre-formed .078 main rail using a distinctive and wider-between-the-rails nose, around 1.5" wide, and the wider rail spacing required using narrower 5/8" wide pans.

 

The hinged pans have already been identified as not legal for G15. Wire chassis like this were common in lower cost classes in regional and raceway series beyond G15 where the hinged pans may have been allowed. This might not even be a wing car chassis.

 

The front wheels also look very 80-ish.

 

The Parma nose was 1.375" wide between the .078 monorail with full "unclipped" wings. The Camen winged nose chassis with which I'm familiar all used a 1.25" wide nose between their dual rails; an outer 1-piece formed .062 rail with .055 inner rails. The "wings" were "clipped" to reduce weight. I'm only familiar with a single Camen chassis using a 1-piece formed .078 rail, an inside gear G15 that was a very different configuration from this. Yeti was a prolific builder of production chassis in the 80's, and I'm only familiar with a few of them. Those I had all used a 1.25" nose with "clipped" wings . The Camen and Yeti noses were distinctive enough to know Pablo's chassis is neither of those. The chassis in question doesn't look like the examples of those 2 brands I've seen.


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#12 Pablo

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Posted 14 August 2026 - 04:33 PM

Tech Inspectors initials?

If a tech inspector did that to one of my scratchbuilt cars it would start a fight


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#13 Martin

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Posted 15 August 2026 - 09:14 AM

Thats a idea I would never of thought off. A pass sticker maybe but never have I seen a tech inspector engrave a chassis. 

Have fun with the restoration Pablo.

Ts would be proud 


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#14 Mike Patterson

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Posted 15 August 2026 - 09:54 AM

Engraving the chassis was common back in the 70s & 80s, at least in the Tri-State USRA. I'll look to see if I have any examples left.

 

So was a paint dot on the inside of the body, usually with an unusual color that was formulated by the tech inspector right before tech.


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 It's weird being the same age as Old People.


#15 Bill from NH

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Posted 15 August 2026 - 02:21 PM

Mike, I saw nail polish used to mark the bodies too. It came in all sorts of strange colors.

 

Martin, I had one chassis engraved with "500" during tech. It was for a 500-lap endurance race at Modelville Hobby, Framingham, MA on their Monarch, in the early 70s. We ran our weekly race cars which used Phaze III chassis, Mura pink B-can motors, & sports car bodies by Lancer, Dynamic, & Kirby. I came in second that day. I've since given that chassis away to an Ohio friend because it was the best handling one of several I owned. None of my scratchbuilt chassis have ever been engraved by a tech director.


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#16 Pablo

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Posted 15 August 2026 - 03:40 PM

The etching in the cross of the "T" are very deep, maybe 10 thou. Almost 1/4 the thickness of the brass !

That's why I like my engraved plaques - no shakey engraver craters  :D


Paul Wolcott


#17 MSwiss

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Posted 15 August 2026 - 04:19 PM

That TS is not a tech inspectors initials.

Wrong spot, no class reference, no entry #.

Shown below is something typical of the engraving of a tech inspector at the USRA Nat's,

It's my 1986 Pro entry #18 and I had to take a flash picture to get where it was visible at all in a pic.

While IMO, most racers don't care about the engraving, I've certainly seen racers ask

the tech director to do it as small and as neat as possible, and on a rare occasion, asking 

them to put it in a particular spot.

 

20260814_172351.jpg


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Mike Swiss
 
Inventor of the Low CG guide flag 4/20/18
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17B West Ogden Ave., Westmont, IL 60559, (708) 203-8003, mikeswiss86@hotmail.com (also my PayPal address)

Note: Send all USPS packages and mail to: 692 Citadel Drive, Westmont, Illinois 60559


#18 Mike Patterson

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Posted 15 August 2026 - 06:46 PM

Here's examples of tech engraving:

15-Chassis.jpg

 

This chassis survived 6 races, I see. Pretty good for me. :D 

 

 

P.S. I see Swiss beat me to it.


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 It's weird being the same age as Old People.


#19 Mr. M

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Posted 16 August 2026 - 05:01 PM

I saw Csaba about tear the head off a tech inspector at one of the big Midwest USRA races when he wanted to engrave his chassis.


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Chris McCarty

#20 MSwiss

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Posted 16 August 2026 - 06:01 PM

Part of that was him not wanting people to get a good look at his car.

 

I'll have a Csaba "you don't need to look at my car to tech it" story in this 

thread. 

 

https://slotblog.net...5745-the-story/

 

It might be a month or two before I get to '84/'85. Lol


Mike Swiss
 
Inventor of the Low CG guide flag 4/20/18
Former IRRA® Components Committee Chairman
Five-time USRA National Champion (two G7, one G27, two G7 Senior)
Two-time G7 World Champion (1988, 1990), eight G7 main appearances
Eight-time G7 King track single lap world record holder

17B West Ogden Ave., Westmont, IL 60559, (708) 203-8003, mikeswiss86@hotmail.com (also my PayPal address)

Note: Send all USPS packages and mail to: 692 Citadel Drive, Westmont, Illinois 60559


#21 Mr. M

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Posted 16 August 2026 - 07:59 PM

Mike, Saw that too, but this time it was about the engraving making a weak spot. It was quite a ruckus. In the end, it was not scribed at all.


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Chris McCarty

#22 Pablo

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Posted 20 August 2026 - 04:13 PM

All new tinned hardware and bits

 

IMG_5248.JPG

 

IMG_5245.JPG


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Paul Wolcott


#23 zipper

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Posted 20 August 2026 - 04:46 PM

All new tinned hardware and bits

 

 

Almost what I built - brings back memories...


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#24 Martin

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Posted 20 August 2026 - 07:44 PM

Super clean  :clapping:  :good: 


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Martin Windmill

#25 Bill from NH

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Posted 21 August 2026 - 09:08 AM

It still appears very much like what I saw Team Tony P. run monthly for open class cars during the mid-70s on the C&C king in Coventry, Ct. after they stopped using ISO's for a while. This was about the same time Parma released the winged front nose piece & their "Wide Finger" pans. Later, Tony modified the ISO design & ran them again. Tony was 18 at the time, I was a few years older.


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