Joined
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15,681 Posts
using new lifters with the oil hole is a huge safety plus for flat tappet cam engine builds.
COMP Cams: Performance Series™ Lifters w/ EDM™; Ford
http://www.summitracing.com/parts/cca-817-16/overview/make/ford
Z
COMP Cams Performance Series EDM Solid Lifters
$280 USD on Summit Racing Equipment
Lifters, EDM Mechanical Flat Tappet, Ford, Set of 16
Forum Discussions about this Product
1 - 9 of 9 Posts
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using new lifters with the oil hole is a huge safety plus for flat tappet cam engine builds.
COMP Cams: Performance Series™ Lifters w/ EDM™; Ford
http://www.summitracing.com/parts/cca-817-16/overview/make/ford
Z
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Joined·15,681 PostsIf you have a solid lifter cam, get the comp cam lifters with the EDM oiling hole in the lifter face. There is no down side to them. The up side is they will direct pressurized oil directly at the cam / lifter interface. You will not lose a cam lobe with using these lifters, although I leave nothing to chance and use an oil loaded with zinc / phosphorus as well.
https://www.summitracing.com/parts/cca-817-16
$168 per set
I've been putting those lifters in all my solid lifter HiPo's and GT350's. good insurance.
Z
PS i was concerned that with 16 additional holes in the oiling system, that there would be a drop in oil pressure. But that thinking was unfounded. Identical oil pressure before and after the lifter installation.
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Joined·15,681 PostsCOMP cams has a replica of the HiPo camshaft. Also you can get them from the guy who runs the HiPo web site, his name is Marv.
Also, I'd strongly recommend you use the COMP cam lifters with the EDM oiling hole i(diameter 0.012") in the lifter face. It directs pressurized oil right at the cam / lifter interface. It's great protection for solid lifter flat tappet cams.
https://www.summitracing.com/parts/cca-817-16
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Joined·15,681 PostsEvan, you should give some serious consideration to using CompCams EDM series of solid lifters.
What they are:
solid lifters with a 0.012" oiling hole right in the face of the lifter where it contacts the cam. This feature puts pressurized oil right on the cam. There is no drop in oil pressure even though you now have 16 holes measuring 0.012" each with oil squirting like crazy out of each one of them.
I put these lifters in my last K code, and the oil pressure didn't vary by even 1 psi according to my AutoMeter oil presssure gauge. In my view EVERY flat tappet engine should have these lifters. Never again worry about your cam / lifter interface getting enough lubrication.
https://www.summitracing.com/parts/cca-817-16
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Joined·15,681 Posts
What my experiments with the two different oils had taught me is that these engines, when set up on the tight end of the Ford desired specifications, are NOT as oil pressure sensitive to different oil viscosities as once believed. Now, it you set up the engine using the loose end of the Ford DESIRED specification, like using a clearance of 0.0015" (50% + looser than my engines) instead of the 0.0005" to 0.0001" as I did, then a different in viscosity might translate to a different outcome than what I experienced.
I used a Melling high volume pump that has an adjustable pressure relief valve. I set mine to not open until the oil pressure was in excess of 100 psi. I wanted to be sure no oil was bypassed with an open pressure relief valve unless there was a catastrophic pressure build up.
https://www.summitracing.com/parts/mel-10688
Cold oil pressure with the 15w-50 at idle was always 80-85 psi, regardless of ambient air temperature. In my climate the highs were in the 100-110 F. range and the lows that I would drive in were 25 F or higher. It does get below 25 F in NE Oklahoma, but I can always find something else to do besides driving until it warms up a little.
I never drove the car until the water temperature got up to 180 and after the engine was at 180 for a few minutes, the oil pressure drops to the 45-65 level at idle. At that point I gave it a good exercise as often as possible, using the entire rpm range. At my self imposed red line of 6,500 rpm, my oil pressure was 70-80 psi, and by design well below the set opening of the oil pump pressure relief valve. When driven hard the engine temperature would vary from 190 to 205 depending on whether I was using the A/C I had added, and dependent on the outside air temperature. Those engine temperatures were exactly what I think is optimal for any SBF. Even 210-220 would not concern me in the slightest.
My vintage cars were essentially my daily drivers and most years they were driven 350 + days of the year.
One winter I decided to try Mobil 1 0w-40 as an experiment. You could've knocked me over with a feather when the oil pressure was essentially unchanged from what it was with the Mobil 1 15w-50.
The only other part of the oiling system besides the oil pump that was non-stock was a chrome moly oil pump drive shaft, and a set of Comp-Cams edm oiling lifters, They have a 0.012" in the lifter face right were it rubs on the cam. This puts pressurized oil right on the cam lobe / lifter juncture. 16 lifters, all with a 0.012" hole feeding pressurized oil to this critical area seems to have no impact on the overall oil pressure. Again, this was surprising to me. I had expected a drop in oil pressure from the addition of these lifters, but that didn't happen either. I wholeheartedly recommend theses lifters to anyone not using hydraulic lifters. They are great insurance again ever wiping a cam lobe.
https://www.summitracing.com/parts/cca-817-16
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Joined·15,681 Posts
^^^^ +1
don't skimp on the cam / lifter special lube. Too much is better than not enough. You might need more than one packet.
RPM : you must keep the RPM at 2,000 for the first 20 minutes. NO idling. There is not sufficient oil spray volume at idle.
is your cam use hydraulic or solid lifters ? If solid, get the comp cam lifters with the edm oiling hole on the lifter face. Pressurized oil is then forced directly on the cam-lifter interface.
https://www.summitracing.com/parts/cca-817-16
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Joined·1,232 Posts$125 - Comp Cams 294S solid cam (New - Installed in block but never ran, never had spring pressure applied) COMP Cams 31-335-4 COMP Cams Magnum Solid Camshafts | Summit Racing
$125 - Comp Cams Performance Series EDM Solid Lifters (New - Installed in block but never ran, never had spring pressure applied) COMP Cams 817-16 COMP Cams Performance Series EDM Solid Lifters | Summit Racing
$100 - Comp Cams 985 Dual Valve Springs (about 1 hour total run time) COMP Cams 985-16 COMP Cams Valve Springs | Summit Racing
Comp Cams Steel Valve Retainers (about 1 hour total run time) COMP Cams 740-16 COMP Cams Steel Valve Spring Retainers | Summit Racing
Comp Cams 10 Degree Locks (about 1 hour total run time) COMP Cams 611-16 COMP Cams Super Valve Locks | Summit Racing
Ended up going roller. Message if interested.
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Joined·13,253 PostsThe real one...
Lifters
COMP Cams 817-16 COMP Cams Performance Series EDM Solid Lifters | Summit Racing
Free Shipping - COMP Cams Performance Series EDM Solid Lifters with qualifying orders of $99. Shop Lifters at Summit Racing.
www.summitracing.com
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Ah, good call on H&M. My dad was a major customer of theirs in the 1960s and will love the suggestion. Who makes it for them, though? H&M gets lots of parts from Blue Thunder and haven't made anything for decades, as far as I know.The real one...
Lifters
COMP Cams 817-16 COMP Cams Performance Series EDM Solid Lifters | Summit Racing
Free Shipping - COMP Cams Performance Series EDM Solid Lifters with qualifying orders of $99. Shop Lifters at Summit Racing.
www.summitracing.com
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