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curious 1960s cam tech

General engine tech -- Drag Racing to Circle Track

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Dan Timberlake
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curious 1960s cam tech

Post by Dan Timberlake » Thu Nov 28, 2019 12:51 pm

Any body know how Howard's did this in 1961 ?

Not much detail in the ad.

I'm picturing a shis-ka-bob of cam lobes. Although manipulating all them cammies just "with the cam cover off" doesn't sound like much fun.
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wriggley monkey
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Re: curious 1960s cam tech

Post by wriggley monkey » Thu Nov 28, 2019 12:54 pm

My guess would be by changing lash.

Kevin Johnson
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Re: curious 1960s cam tech

Post by Kevin Johnson » Thu Nov 28, 2019 4:40 pm

Dan Timberlake wrote:
Thu Nov 28, 2019 12:51 pm
Any body know how Howard's did this in 1961 ?

Not much detail in the ad.

I'm picturing a shis-ka-bob of cam lobes. Although manipulating all them cammies just "with the cam cover off" doesn't sound like much fun.
I think you are correct. Each bay having a bearing necked into a 5 degree male splined shaft for the lobes, spacers etc. mating with the next female splined bearing and down the line; rifle drilled with a center bolt to tension them collectively in compression lengthwise. What could possibly go wrong.

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Re: curious 1960s cam tech

Post by turbo camino » Thu Nov 28, 2019 4:52 pm

If it were Jenga-tower style, how would you adjust it by just removing the front cover? You'd have to pull it out and rebuild the entire stack in the new config.

To adjust it via the front cover, it would have to have intake lobes on an outer shell and exhaust lobes keyed to an inner shaft.
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Re: curious 1960s cam tech

Post by Tuner » Thu Nov 28, 2019 6:13 pm

I recall some cam outfit (and I think it was Howard's) in the waybachdaez had a scheme with offset rollers. The axle of the roller was offset from the centerline of the lifter body and they could be installed advanced or flipped over for retarded. I think they were available in two offsets, like 5 and 10, which would jive with this ad, except the timing cover wouldn't need to come off to change the lifters or their position + or -. Only been 60 years ago, seems like just yesterday.

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Re: curious 1960s cam tech

Post by ClassAct » Thu Nov 28, 2019 6:46 pm

Tuner wrote:
Thu Nov 28, 2019 6:13 pm
I recall some cam outfit (and I think it was Howard's) in the waybachdaez had a scheme with offset rollers. The axle of the roller was offset from the centerline of the lifter body and they could be installed advanced or flipped over for retarded. I think they were available in two offsets, like 5 and 10, which would jive with this ad, except the timing cover wouldn't need to come off to change the lifters or their position + or -. Only been 60 years ago, seems like just yesterday.

I thought it was Isky that did that. May have to dig up an old Isky catalog and see if it's in there.

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Re: curious 1960s cam tech

Post by Krooser » Fri Nov 29, 2019 8:16 am

It was all "hot rod mojo"...super secret technology from Area 51!
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Re: curious 1960s cam tech

Post by swampbuggy » Fri Nov 29, 2019 8:44 am

Tuner, now we who did not already know, you ain't no spring chicken LOL in a good way. Mark H.

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Re: curious 1960s cam tech

Post by PackardV8 » Fri Nov 29, 2019 12:11 pm

Dan Timberlake wrote:
Thu Nov 28, 2019 12:51 pm
Any body know how Howard's did this in 1961 ?
Hi, Dan,

FWIW, this question came up on the HAMB a couple of years back and there were no definitive answers there either.

https://www.jalopyjournal.com/forum/thr ... d.1055758/
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Re: curious 1960s cam tech

Post by DCal » Fri Nov 29, 2019 1:14 pm

Think back to the 60s and remember all the camshaft ads in every magazine, they all came up with crazy names and claims. Remember Isky's 5cycle cams? Which was a guy on a bicycle-the 5th cycle!! This might be an answer to someone else's ad. Good times.

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Re: curious 1960s cam tech

Post by Geoff2 » Sat Nov 30, 2019 3:36 am

And the Vari-Cam adv/ret cam sprocket....

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Re: curious 1960s cam tech

Post by levisnteeshirt » Mon Dec 02, 2019 6:53 pm

coolest thing I saw from back then was a cam that rotated at half speed via gear reduction timing set ,, it had 2 opposing lobes ,, looks like controlling the ramp rates might be better ??

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Re: curious 1960s cam tech

Post by MadBill » Tue Dec 03, 2019 12:18 am

That would be the Bus Schaller quarter speed cam: https://www.google.com/search?sxsrf=ACY ... 04&bih=914
Seems to me to have zero pluses and several minuses vs. standard practice. #-o
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Re: curious 1960s cam tech

Post by cjperformance » Tue Dec 03, 2019 3:15 am

Kevin Johnson wrote:
Thu Nov 28, 2019 4:40 pm
Dan Timberlake wrote:
Thu Nov 28, 2019 12:51 pm
Any body know how Howard's did this in 1961 ?

Not much detail in the ad.

I'm picturing a shis-ka-bob of cam lobes. Although manipulating all them cammies just "with the cam cover off" doesn't sound like much fun.
I think you are correct. Each bay having a bearing necked into a 5 degree male splined shaft for the lobes, spacers etc. mating with the next female splined bearing and down the line; rifle drilled with a center bolt to tension them collectively in compression lengthwise. What could possibly go wrong.
:lol: i like the positive thinking =D>
Craig.

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Re: curious 1960s cam tech

Post by cjperformance » Tue Dec 03, 2019 3:20 am

Id love to hear more about this. This stuff is interesting even when not practical or reliable!
Every scenario i can think of for this just screams horrid inaccuracies in valve timing lobe to lobe !!
Craig.

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