what size does this cam sound?

Posted By: Exit1965

what size does this cam sound? - 04/06/14 04:14 AM

Not my car, just found this video and thought the car sounded great. Anyone guess what specs cam would sound like that?

https://www.youtube.com/watch?v=6dZPRVPWiaM

Posted By: sunroofgtx

Re: what size does this cam sound? - 04/06/14 04:48 AM

3/4

Posted By: Sport440

Re: what size does this cam sound? - 04/06/14 04:52 AM

Quote:

3/4

I couldnt play the vid myself, but from the explanation,

Posted By: tubtar

Re: what size does this cam sound? - 04/06/14 05:27 AM

You'd better ask Donnie.
I'm gonna say 7/8ths.

Posted By: viperblue72

Re: what size does this cam sound? - 04/06/14 06:30 AM

Too many variables to know. Could be a 292 hydraulic. Could be a Thumper cam, could be a decent size solid roller. Could be a 312 590.
It's anybody's guess.

Posted By: polyspheric

Re: what size does this cam sound? - 04/06/14 06:59 AM

Without a lot more detail on the car, you don't know anything. This includes:
1. how big? a 273 will do that with a 240� cam, a 572 idles like a milk truck with a 260�.
2. how high was that idle? 600 RPM means no cam to speak of, 2,000 RPM means the wrong cam.
3. what converter?

Just my 2�?
What I heard was a bad idle and a loud exhaust. IME, a big cam does not have an irregular idle, but goes through identical up-&-down cycles of engine speed that take up to 1 second even at 1,200 RPM.

I'll give you another test: very early exhaust opening + high compression makes the exhaust REALLY loud at idle.

Posted By: Sport440

Re: what size does this cam sound? - 04/06/14 09:41 AM

Quote:

Quote:

3/4

I couldnt play the vid myself, but from the explanation,

Just so everybody knows, Im just kidding around here.

But I am from the era of the 3/4 cams

But hey now, where did the 7/8,s cams come into play.

I remember cruising McDonalds in the late 70,s, never heard of the 7/8,scams.

Those were some fun days, I miss them.

Posted By: tubtar

Re: what size does this cam sound? - 04/06/14 03:59 PM

Quote:

Quote:

Quote:

3/4

I couldnt play the vid myself, but from the explanation,

Just so everybody knows, Im just kidding around here.

But I am from the era of the 3/4 cams But hey now, where did the 7/8,s cams come into play.

I remember cruising McDonalds in the late 70,s, never heard of the 7/8,scams.

Those were some fun days, I miss them.

Bigger is always better.

Posted By: formula S

Re: what size does this cam sound? - 04/06/14 08:51 PM

maybe 255 to 265 @.050 and 108 to 110 lc

Posted By: 451Cuda

Re: what size does this cam sound? - 04/06/14 09:05 PM

Quote:

3/4

Sounds more streetable than that...I'd guess it's a 11/16 cam.

Posted By: GTX MATT

Re: what size does this cam sound? - 04/07/14 05:12 PM

I'll play, 9:1 383, 906 heads with blended bowls, 484 Purpleshaft installed straight up, 10 degrees of initial, stock distributor, 28 degrees total timing, OLD 750 double pumper that needs a rebuild, Hedman headers, 2.5 inch exhaust, original Torker intake, 2500 stall off the shelf converter.