I found the elusive proof of the 3/4 race cam!

I found the elusive proof of the 3/4 race cam!

Joined: December 17th, 2003, 4:14 pm

April 3rd, 2012, 5:47 am #1

Click on the third picture in the ad, it's true!

http://www.ebay.com/itm/NEW-FORD-CAM-DY ... es&vxp=mtr
Quote
Like
Share

Joined: December 16th, 2003, 1:59 am

April 3rd, 2012, 8:48 am #2

along with the documentation!

.542"/308* single pattern for open headers or low pressure exhaust... 226* @ .050, 108 LSA & 4* advance ground in





there'll be phantoms, there'll be fires on the road... and the white man dancing
Quote
Like
Share

Joined: January 10th, 2002, 5:53 pm

April 3rd, 2012, 1:29 pm #3

Click on the third picture in the ad, it's true!

http://www.ebay.com/itm/NEW-FORD-CAM-DY ... es&vxp=mtr
Looking at the specs, that put my old F238 cam at maybe 7/8 race.

1967 Falcon 4 door 351C-4V
1970 Mustang 351C-2V
http://raceabilene.com/kelly/hotrod
Owner built, owner abused.
Quote
Like
Share

Joined: June 12th, 2009, 1:31 pm

April 3rd, 2012, 2:26 pm #4

Click on the third picture in the ad, it's true!

http://www.ebay.com/itm/NEW-FORD-CAM-DY ... es&vxp=mtr
thats funny!!! N/M
Quote
Like
Share

Joined: December 23rd, 2004, 3:26 pm

April 3rd, 2012, 6:19 pm #5

Click on the third picture in the ad, it's true!

http://www.ebay.com/itm/NEW-FORD-CAM-DY ... es&vxp=mtr
like the Datsun .75 race cam. Especially good for 400 meter drifting.
bop
Quote
Like
Share

Joined: October 1st, 2004, 8:05 pm

April 3rd, 2012, 6:26 pm #6

that's what they called cams long ago, 1/2 race, 3/4 race & full race. what's so unusual?

-G
Quote
Like
Share

Joined: December 23rd, 2004, 3:26 pm

April 3rd, 2012, 6:50 pm #7

I haven't heard it for 20 years; full and 3/4. Never heard 1/2 race...and (for me at least) it was in circles that did'nt make a science out of building motors. In these circles, guys would put a cam in it, and the motor wouldn't last 6 months. Then, what would now be a great find, these cars ended up in the junk-yard.

I guess it's just me jumping on the band-wagon and being unnecessarily snarky. Actually, I prefer the old-school lexicon about most things, as a rule.

Bop
Quote
Like
Share

Joined: January 1st, 1970, 12:00 am

April 3rd, 2012, 7:12 pm #8

Clevelands like to wind up that cam has a Max RPM of 5000, so that's about 75% of the RPM range...

I think I had that same Cam Dynamics Grind back in High School 1981
-blizz

Happy New Year 2012!!..
Quote
Like
Share

Joined: October 1st, 2004, 8:05 pm

April 3rd, 2012, 7:13 pm #9

I haven't heard it for 20 years; full and 3/4. Never heard 1/2 race...and (for me at least) it was in circles that did'nt make a science out of building motors. In these circles, guys would put a cam in it, and the motor wouldn't last 6 months. Then, what would now be a great find, these cars ended up in the junk-yard.

I guess it's just me jumping on the band-wagon and being unnecessarily snarky. Actually, I prefer the old-school lexicon about most things, as a rule.

Bop
The terminology comes from the flat head Ford era, it fell out of use by the early 1970s.

There was originally 1/2 race & full race cams. Then somebody got the idea to make a hotter street cam by using one lobe from a 1/2 race cam & one lobe from a full race cam ... thus they called it a 3/4 race cam.



Quote
Like
Share

Joined: December 19th, 2008, 2:01 pm

April 3rd, 2012, 7:14 pm #10

Click on the third picture in the ad, it's true!

http://www.ebay.com/itm/NEW-FORD-CAM-DY ... es&vxp=mtr
That the term had to do with the percentage duration relative to a full circle, like 3/4's of 360 would be 270 degrees?

Am I totally off or could there be something this?
Quote
Like
Share