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11-23-2009, 09:42 PM | #31 |
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Re: Schubek Lifters
Bob,
These threads do take on a life of their own. I hope you get the information you need. I have Schubek lifters in three motors with no running problems. But, ol Joe did send me a bad set once and it took months to get a good set out of him. Bub taught me how to check them out and set them up. I ain't skeerd!
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Bruce Noland 1788 STK Last edited by Bruce Noland; 11-24-2009 at 09:48 AM. |
04-22-2013, 09:35 PM | #32 |
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Re: Schubek Lifters
Im considering some Smith Machine Composite lifters... Ive read all the bad stuff about them, and its got me wondering... Is everybody just over revving their engines? Or, are these things not as good as they claim to be? I cant imagine, that, revving to 6500-6700, and having 180-200lbs on the seat(not the driver's seat..hehe), there wouldnt be any problems... My other question, at this point, is, are they worth it? Is a regular lifter, with EDM , a good way to go?
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1968 Bird/TRW 455/Home ported 13's, '70 Qjet,Holley Street Dominator manifold, Comp Solid FT, 10.817/122.30/1.440 Workin' on E/SA combo 3119 E/SA |
04-22-2013, 11:23 PM | #33 | |
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Re: Schubek Lifters
Quote:
Since then I have gone to the Tool steel lifters and no problems so far. |
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04-23-2013, 06:45 AM | #34 |
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Re: Schubek Lifters
Can you use tool steel lifters on a cast iron cam, with no problems? Are spring pressures the same as composite? EDM hole?
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1968 Bird/TRW 455/Home ported 13's, '70 Qjet,Holley Street Dominator manifold, Comp Solid FT, 10.817/122.30/1.440 Workin' on E/SA combo 3119 E/SA |
04-23-2013, 07:43 AM | #35 | |
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Re: Schubek Lifters
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Tool steel lifters on a cast cam core is not a problem. I have used some with a EDM hole and some with out and have not seen any difference. |
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04-23-2013, 07:55 PM | #36 |
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Re: Schubek Lifters
DLC coatings are a lot like oil. There are as many different kinds as there is oil. These coatings are still in their embryoinc stages. There is coatings made for low pressure loads, high pressure loads, vapor load , non vapor loads and yep you guess it what ever you want to talk about. You talk about NASCAR. Ya cant even compare the 2. Those guys want to finish one race with as little spring pressure as you can get by with. Everything in that motor is so finely tunes, that if you pass gas near one of them and it ingest it, something will burn up cause they didnt git to test it that way. That unlimited money is to git it light and keep it together. There are good DLC companies and then there are just coating companies. So dont lump them all together and say the coating dont work. Friction coefficient can be as low as .04 and hardness can be as hard as
3500Hv. Crap now ya got me started. reed |
04-23-2013, 09:21 PM | #37 |
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Re: Schubek Lifters
There was a good thread about the tool steel lifters on hear a few months ago. Might want to try a search and see what comes up. I like what I read about them, and they are much more affortable than the Smiths.
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04-23-2013, 10:29 PM | #38 | |
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Re: Schubek Lifters
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Last edited by Jim Hanig; 04-23-2013 at 10:33 PM. |
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04-24-2013, 06:48 AM | #39 |
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Re: Schubek Lifters
Im guessing that the problems are coming from: too much ramp, too much RPM(Valve float) and not enough spring, is what causes the problems... Everything has a limit...even roller cams... i would like to hear from all the guys that arent having trouble with Smiths or even older Shubecks...These are guys that are probably running less than 7k through the traps...
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1968 Bird/TRW 455/Home ported 13's, '70 Qjet,Holley Street Dominator manifold, Comp Solid FT, 10.817/122.30/1.440 Workin' on E/SA combo 3119 E/SA |
04-24-2013, 06:59 AM | #40 | |
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Re: Schubek Lifters
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