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12-04-2003, 06:28 PM
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CC Member
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Join Date: Apr 2003
Location: ATL-SAV,
GA
Cobra Make, Engine: Yard Dog FFR 521, 572 Fire Ant Mongrel Cobra 393, 566, Boss 600 hemi , RCR40 #13 348
Posts: 158
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Not Ranked
The 3/4 race cam?
It goes in here -
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12-04-2003, 08:13 PM
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Senior Club Cobra Member
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Join Date: Jun 2001
Location: North Metro Atlanta,
GA
Cobra Make, Engine: 2 dr roadster, V-8, 4 spd.
Posts: 2,780
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Not Ranked
Oh Boy. Glad I am not in the NHRA!
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12-04-2003, 11:11 PM
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CC Member
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Join Date: Sep 2002
Location: Baton Rouge, Louisiana,
La.
Cobra Make, Engine: Waiting to Order a BDR, engine to be a SA C408. TKO to hook it up.
Posts: 1,259
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Not Ranked
?? what am I missing ?
__________________
Pull a gear .... drop the hammer .... and enjoy the Drive !!
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12-05-2003, 07:39 AM
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CC Member
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Join Date: Sep 2000
Cobra Make, Engine:
Posts: 999
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Not Ranked
Don't even try to put it in those holes, it will bung it all up.
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12-05-2003, 08:35 AM
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CC Member
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Join Date: Apr 2002
Location: Alpharetta,
GA
Cobra Make, Engine: Sold - Unique FIA - SA 396 Stroker
Posts: 2,440
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Not Ranked
Based on the size of those holes you may want to consider a more radical cam - something on the order of 7/8 
Randy
__________________
Sold the Unique - Bought a Porsche TT - Sold the TT - Bought a truck
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12-05-2003, 11:25 AM
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CC Member
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Join Date: Aug 2002
Location: Atlanta,
GA
Cobra Make, Engine: SPF #821,Southern Automotive 427 Side Oiler w/2x4
Posts: 687
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Not Ranked
That's not TC's new block. Saw the boys down in McDonough working on it Tuesday.
PS whats this thread about anyway??? 
__________________
Alex
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12-05-2003, 11:34 AM
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CC Member
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Join Date: Dec 2001
Location: Louisville,
KY
Cobra Make, Engine: I'm Cobra-less!
Posts: 9,415
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Not Ranked
I haven't figured it out myself. But as long as we're all throwing out fractions, I'm kinda partial to 17/32 myself.
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12-05-2003, 11:52 AM
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CC Member
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Join Date: Apr 2003
Location: ATL-SAV,
GA
Cobra Make, Engine: Yard Dog FFR 521, 572 Fire Ant Mongrel Cobra 393, 566, Boss 600 hemi , RCR40 #13 348
Posts: 158
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Not Ranked
Needed room to grow, so this is part of my winter upgrade. It's like TCs body, genuine recycled beer cans. Horsepower capacity is counted in thousands, so it should handle my 3-digit numbers without a problem. Johan - it fit better after I filed the lumps off the cam - probably makes it about a 13/64 now.
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12-05-2003, 12:53 PM
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CC Member
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Join Date: Mar 2003
Cobra Make, Engine:
Posts: 1,514
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Not Ranked
Blykins: You got to know the men behind the thread to even guess what it would be about. Kind of like mad scientist - marketer extraordinaire - Roland Martin! Eccentric would be a common thread.
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12-05-2003, 01:10 PM
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CC Member
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Join Date: Mar 2003
Location: Kansas City,
MO
Cobra Make, Engine: Unique Motorcars 289 FIA
Posts: 711
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Not Ranked
I remember my granpda talking about 3/4 race cams....but I don't really know what they are. Aren't those from back in the days when everybody had F70 radial tires, a shackle kit, and a set of Cragar S/S mags????
Russ
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12-05-2003, 01:19 PM
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CC Member
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Join Date: Dec 2001
Location: Louisville,
KY
Cobra Make, Engine: I'm Cobra-less!
Posts: 9,415
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Not Ranked
Yeah, I've always heard the term, but never figured it out....I thought maybe it was a .750" lift.....extremely radical.
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12-05-2003, 01:32 PM
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CC Member
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Join Date: Oct 2000
Location: Crystal Lake,
IL
Cobra Make, Engine: Everett-Morrison, 434 cid
Posts: 977
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Not Ranked
History of the "3/4 race cam"
compiled by
HARVEY J. CRANE, JR.
October 1, 1999
Ed Winfield made his first performance camshafts in 1914. These were motorcycle cams with individual lobes pinned to a shaft.
His first automotive camshafts were ground in 1919 when he built his first homemade cam grinder. Ed was 17 years old at that time.
Ed told me his mother gave him the money to purchase a used grinding machine that he converted to a cam grinder by adding a rocker table. This homemade cam grinder was used in his mother's garage to regrind Ford Model T camshafts into racing specifications.
Ed told me he first made only two masters, a SEMI RACE GRIND and a FULL RACE GRIND! He later made a third master that was more duration and lift than the SEMI but less than the FULL. He then used the FULL RACE master as an intake and the new master as an exhaust.
He called this new reground camshaft a THREE QUARTER RACE CAM! Ed said "It was three quarters of the way to a full race cam".
According to Dema Elgin, ED began working for Harry Miller at the age of 14 1/2 in the carburation department. Within a few months he was doing other machine work on the famous Miller racing engines. Harry wanted Ed to stay on with him and offered Ed more money. Ed was being paid .60 cents per hour and was offered .70 cents, but ED wasn't fond of Harry because he was like a dictator.
Ed quit grinding camshafts in October of 1969 after he finished a batch of Drake Offenhauser camshafts. That's 55 years of grinding cams!
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12-05-2003, 01:44 PM
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Senior Club Cobra Member
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Join Date: Jun 2001
Location: North Metro Atlanta,
GA
Cobra Make, Engine: 2 dr roadster, V-8, 4 spd.
Posts: 2,780
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Not Ranked
So John Owen,
Is this a block from Warren Johnson or similar?? I know there is a premier drag race motor builder out in Winder I think.
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12-05-2003, 02:18 PM
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CC Member
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Join Date: Apr 2003
Location: ATL-SAV,
GA
Cobra Make, Engine: Yard Dog FFR 521, 572 Fire Ant Mongrel Cobra 393, 566, Boss 600 hemi , RCR40 #13 348
Posts: 158
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Not Ranked
The block is from Raceparts Distribution in NC. Engine Systems in Tucker is a premier 460 shop and will do machine work on the block and crank, then balance the rotating assembly. Jon Kaase is the fellow in Winder, designed the SCJ heads for Ford, recently won a big block horsepower shootout, and does big drag engines. He has consented to do a little work on my SCJ heads and spec a new custom Comp solid roller cam for the motor. I will do the assembly, and if it runs, take it to Ed Senf for basic DFI map. Boredom is an expensive thing.
Note: It will still be primarily a street car - spontaneous road trips are the reason I built it.
Last edited by John Owen; 12-05-2003 at 03:04 PM..
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12-05-2003, 02:32 PM
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CC Member
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Join Date: Mar 2003
Cobra Make, Engine:
Posts: 1,514
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Not Ranked
Boredom? I thoughty that was your worst nightmare? So what are the specs? CI, CR and internal components, etc.? 11.9's @128 and no traction wasn't enough - I guess a 5 point cage is also on the list of upgrades!  |
12-05-2003, 05:24 PM
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CC Member
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Join Date: Apr 2002
Location: Alpharetta,
GA
Cobra Make, Engine: Sold - Unique FIA - SA 396 Stroker
Posts: 2,440
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Not Ranked
Russ, blykins now you know - some of us are old indeed - we had 3/4 cams in high school.
John Owen I can't afford to be bored, however I have been stroked a few times.
Let me know when the build starts I gotta see your handy work.
Randy
__________________
Sold the Unique - Bought a Porsche TT - Sold the TT - Bought a truck
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