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  1. #46
    Do you ever leave? EH179's Avatar
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    Quote Originally Posted by EVL253 View Post
    cool face lifters is an option certainly in this day & age of solids.

    ive got crower cool face in my stroker. and while it hasnt done a lot of work so far so good
    Agree, Isky EDM cool face lifters, coming up 7 years now.

  2. #47
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    You can make your own 'cool face' lifters from std lifters, solid and hyd, & save a heap of money. Been doing it for 30 yrs...

    Takes 20 min.

    Use a Dremel with a 0.015-020" cut off wheel. Mount the lifters one at a time in a soft jaw vice. Tape the open end closed to stop filings getting in. Grind a groove about 0.010-0.015" [ not critical ] deep down the lifter body. Start at the oil band & go to within about 1/8" of the lifter base. Rub the groove with emery paper to remove any high spots.

    Done!

  3. #48
    Do you ever leave? v8bulldogs's Avatar
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    Good to hear about the cool face lifters, having trouble deciding what way to go now as i just re read that old 1000 hp holden recipe thread and has got the cogs ticking again.... Ive had a set of thick header plates sitting on the cupboard for a few years now to make those new boost manifolds I wanted to try. Hmmm.

  4. #49
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    gto Geoff more like cool side lifters lol.. good tip

  5. #50
    254RWHP boat anchor EVL253's Avatar
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    if your gonna pull it apart well may as well. the thick wall plates & steam pipe & send it
    11 second E85 bottle fed boat anchor

  6. #51
    Do you ever leave? EH179's Avatar
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    Quote Originally Posted by GtoGeoff View Post
    You can make your own 'cool face' lifters from std lifters, solid and hyd, & save a heap of money. Been doing it for 30 yrs...

    Takes 20 min.

    Use a Dremel with a 0.015-020" cut off wheel. Mount the lifters one at a time in a soft jaw vice. Tape the open end closed to stop filings getting in. Grind a groove about 0.010-0.015" [ not critical ] deep down the lifter body. Start at the oil band & go to within about 1/8" of the lifter base. Rub the groove with emery paper to remove any high spots.

    Done!
    Not exactly a "cool face" though, is it?

    You also fail to mention the slight loss of hot idle oil pressure...

  7. #52
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    EH179.

    I didn't mention the slight loss of oil pressure because I have never noticed any loss of oil pressure in the many sets I have converted. It shows you know little about American V8 design because the pumps are designed with extra capacity to allow for wear & bearing tolerance variations.
    0.021" is the hole size popularly used for cool face lifters. It has an area of 0.00035". Using my #s in the lifter groove of 0.020" wide by 0.015" deep, the area is LESS, 0.00030". So if there was a loss of oil pressure, it would be greater with CF lifters...


    Further, no not exactly cool face, actually better. Comp Cams make a tool for cutting a groove in the lifter bore. It does exactly the same thing as the groove in the lifter: bleeds oil down onto the lobe/lifter interface. [ But you have to have the engine disassembled to clean out the metal.]And it is better than a hole in the lifter base because metal smear or debris could close the hole over.

  8. #53
    Do you ever leave? EH179's Avatar
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    A popular magazine in the '80's, possibly PSC (Bob Kotmel) delved into grinding flats into the sides of lifters way back then.
    Never felt the need to try it as i don't have problems with flat tappets, ever.

    You say your method is "better than a hole"...how? Your method creates an external oil leak down the lifter and on to the lobe, which would get wiped off , unless there is lifter/lobe separation?
    No difference really from the original splash fed design.
    The EDM hole allows an oil wedge between the two.

    And last time i looked, this is a Holden V8 sub forum...not American V8.

  9. #54
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    Yes, & Holden V8s use Pontiac/Buick lifters. They are American V8s, in case you don't know. I explained why the groove is better. You better contact Comp Cams & tell them their lifter bore grooving tool is no good.

    "unless there is lifter/lobe separation". That is exactly what happens. There is a gap. Notice the EDM is hole NOT in the centre of the lifter. The lobe has a side to side taper of approx 0.001". The lifter base also has a radius, usually from 36 to 60". The lobe is also offset from the lifter bore. These three parameters cause the lifter spin when taking up the load, to distribute the load. If the lifter stops spinning, it is instant death to lobe & lifter. Because of the taper/radius, there is a minute gap towards the outside of the lifter, where the EDM hole is [ & where oil running down a grooved will form ]. Without this gap, the lifter would not spin. This gap delivers the oil to the lobe/lifter interface.

  10. #55
    Do you ever leave? EH179's Avatar
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    Yawn:... bedazzle us with your brilliance some more.

    Do Procomp sell EDM lifters?

    Hey bulldogs, my apologies for the thread diversion and i hope this one doesn't get closed, like the Qjet thread.

  11. #56
    Do you ever leave? v8bulldogs's Avatar
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    You know me mate, Im cool as cucumber. We’ve been here long enough and know who is who and who knows what. We are all here as enthusiasts and generally get along fine without barging our way through too much

  12. #57
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    Do ProComp sell EDM lifters? I dunno, why don't you ask them....

  13. #58
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    Quote Originally Posted by GtoGeoff View Post
    Do ProComp sell EDM lifters? I dunno, why don't you ask them....
    Why would i do that??? WOFTAM...

  14. #59
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    BAHAHahaha. You two lol.

  15. #60
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    How to win friends and influence enemies?

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