Over on the H.A.M.B. there's a lengthy discussion about the vari-cam and also something called cam-a-go. Snake oil or real? who knows.NealOn Tue, May 17, 2022 at 10:40 PM neal zimmerman <neal.zimmerman@xxxxxxxxx> wrote:Yes Don Gallimore, Thank you! It existed. I am not sure it was Schneider but it was somebody. I remember seeing the stickers in hot rod windows and saw a schematic of how it worked. Similar to the mechanical weights to a distributor. Dont some current vehicles use variable valve timing?There also those variable displacement cadillacs they had.On Tue, May 17, 2022 at 5:23 PM <glpavlovich@xxxxxxx> wrote:--Yes, the best cam company out there. I talked with Dave Schneider as well as the rest of the crew frequently and Dave was not just a “cam grinder,” he was an engineer that developed from scratch and tested all his profiles. Most cam companies copy existing profiles and brand them as their own; really intellectual property theft, but a common practice out there.
Gary Pavlovich
From: 1962to1965mopars@xxxxxxxxxxxxxxxx <1962to1965mopars@xxxxxxxxxxxxxxxx> On Behalf Of Bill Parker
Sent: Tuesday, May 17, 2022 4:36 PM
To: 1962to1965mopars@xxxxxxxxxxxxxxxx
Subject: Re: schneider cams
I have memories of reading about it in the mags back when! Your verification means I’m maybe not senile yet??
On May 17, 2022, at 6:41 PM, dongallimore <dongallimore@xxxxxxx> wrote:
We ran something like that on our 318 back in the early 70's. It was called Vari-Cam. I think we got it from a guy in NJ. Mounted to the top gear on the camshaft.
Akron Don
Sent from my Verizon, Samsung Galaxy smartphone
-------- Original message --------
From: Bill Parker <hemirr@xxxxxxxxx>
Date: 5/17/22 5:58 PM (GMT-05:00)
Subject: Re: schneider cams
I found a patent granted in 2005 for a mechanical variable valve timing upper gear. It is to operate on centrifugal force acting on a pair of pivoting weights similar to the mechanical advance of a distributor. But I don’t see any information that it got produced.
Didn’t some company have a manually adjustable upper timing gear for domestic engines some years ago? You took a separate cover off to access the adjustment it seems like. Of course that wouldn’t really accomplish what we are taking about, an add-on timing set up that automatically adjusts valve timing mechanically for older drag engines.
On May 17, 2022, at 5:29 PM, glpavlovich@xxxxxxx wrote:
Don Dulmage used the Racer Brown Cams and that was his “go to” profile; specifically the STH42 (254@.050”) 108LC Hyd. I have one of those in the Poly cam profile.
The advancing and retarding according to engine RPM is characteristic of the Rhoades Variable Duration lifters (still marketed) that shortened duration at low RPM to retain vacuum for accessories, better idle quality for street use and then increased duration as RPM increased. Hughes Engines also has the variable duration set marketed under their name.
Gary Pavlovich
From: 1962to1965mopars@xxxxxxxxxxxxxxxx <1962to1965mopars@xxxxxxxxxxxxxxxx> On Behalf Of neal zimmerman
Sent: Tuesday, May 17, 2022 1:17 PM
To: 1962to1965mopars <1962to1965mopars@xxxxxxxxxxxxxxxx>
Subject: Re: schneider cams
I don't think they've made that in years. and I am not sure it was them that made it. I just remember don dulmage talking about it
neal
On Tue, May 17, 2022 at 11:22 AM <62-65-mail-list-club@xxxxxxxxxxx> wrote:
I don't see that advance / retard feature mentioned on their website.
But I did notice they wrote: "We are currently out of Poly Cams until further notice. As such we are limited to regrinds
only at this time, on your core."
http://schneidercams.com/
Thanks,
Gary H.
> -------Original Message-------
>
> Looking around I was surprised to see that Schneider racing cams are
> still around.
> Anyway weren't they the ones that back in the day had some system
> whereby your cam would actually advance or retard in relation to rpm.?
>
> I remember Don Dulmage here praising those cams and saying they
> actually worked.
> Neal Zimmerman --
> --
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