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-   -   No street or track. (https://forums.maxperformanceinc.com/forums/showthread.php?t=884789)

steve25 03-29-2026 10:07 AM

No street or track.
 
1 Attachment(s)
Well if you can’t drive on the street or the track then how’s about two rails close to the street?

This must be the one and only Pontiac like this I would guess.

PAUL K 03-29-2026 11:57 AM

Perfect!

jhein 03-29-2026 12:23 PM

OK, but what's the proper cam choice for this application?

Steve C. 03-29-2026 01:04 PM

The name hi-rail comes from the shortening of highway and railway.

Maybe powered by the 316.6 cubic inch "Strato-Streak" V8 engine. You can bet the retractable street tires sure wouldn't need much torque to do a burnout on steel rails :)


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sdbob 03-29-2026 01:10 PM

Since I'm also rail enthusiast real and model I knew about that vehicle. There are others,Pontiacs that is. I'll have to look.

Steve C. 03-29-2026 01:16 PM

CAM upgrade ?

1955-57 Pontiac 316 V8 3/4 GRIND CAMSHAFT

https://egge.com/product/1955-57-pon....00%20in%20%7C

:)


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Steve C. 03-29-2026 03:43 PM

One Unusual – Project Nevada Northern Railway HY-RAIL #18

https://nnry.com/one-unusual-project...ay-hy-rail-18/


DULUTH, Minn. – The Lake Superior Railroad Museum has restored a former Erie Mining hi-rail car — a 1957 Pontiac — to service. The Pontiac Chieftain station wagon was put into service in 1957 on Erie Mining Co.’s 74-mile main line between Hoyt Lakes and Taconite Harbor.

https://www.trains.com/trn/news-revi...g-hi-rail-car/

There are a few more stories out there.

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694.1 03-29-2026 04:05 PM

I have seen remnants of a '57 in an AZ Salvage yard.
Got photos around here someplace...

Dragncar 03-29-2026 04:12 PM

How cool would it be to have a 56-57 Pontiac station wagon to drive around .
That railway car better not have a sbc or LS it it !

PAUL K 03-29-2026 04:46 PM

Quote:

Originally Posted by jhein (Post 6609697)
OK, but what's the proper cam choice for this application?

Old Faithful.... It's always the Old Faithful

Steve C. 03-29-2026 06:14 PM

Comp Cams Mutha' Thumpr

NeighborsComplaint 03-29-2026 06:58 PM

I'll bet it handles like it's on rails.

jhein 03-29-2026 07:24 PM

Quote:

Originally Posted by NeighborsComplaint (Post 6609753)
I'll bet it handles like it's on rails.

I declare you the winner! :clap2:

steve25 03-30-2026 04:39 AM

If it ran on 3 rail track like O gauge Lionel does would it be fitting to have a Tripower motor in it?

Scarebird 03-30-2026 07:46 AM

Quote:

Originally Posted by Steve C. (Post 6609747)
Comp Cams Mutha' Thumpr

The automotive god's frown at your Dairy Queen cam.

Steve C. 03-30-2026 10:18 AM

A FWIW.... the Thumpr cams have their roots based on road race track use where the cars benefitted on power coming off the corners.

"Believe it or not, the Comp Cams thumper grinds run very well, and sound real good too. I have used them many times, and the performance is much better than expected, and they have the DRIVE IN IDLE sound that people want."

JOE SHERMAN RACING ENGINES

Cams are like people's personalities, what works for one won't necessarily work for others.
If you do a search here on the Thumper subject you will find a lot of negative opinions and comments, like XE flat tappet cams !



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