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12-07-2016, 11:57 AM
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#1 |
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VIP Member
Join Date: Nov 2008
Location: Glendora,Calif.
Posts: 1,139
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Re: Lifter rule in Stock
Seems to me that after a lot of good intelligent questions have surfaced and been discussed, a rule clarification will probably be forthcoming. Yes, Billy, the solid roller lifter comment is a real good probability that RPM's might possibly be affected for good. I know that a mechanical lifter camshaft has clearance ramps included on each end of the lobe configuration to allow for lash, and that the overall lift also compensates for valve train lash. If you tried a set of mechanical lifters on your existent hydraulic cam, what would you use for lash on an initial effort before replacing the cam?We're talking going to a test and tune,not some kind of national event.
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12-07-2016, 02:16 PM
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#2 | |
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Join Date: Mar 2002
Location: usa
Posts: 239
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Re: Lifter rule in Stock
Quote:
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12-07-2016, 07:26 PM
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#3 |
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VIP Member
Join Date: Nov 2008
Location: Glendora,Calif.
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Re: Lifter rule in Stock
I assume that would have to be at or near operating temperature. Also, how much would you gain over these "Limited Travel" lifters?
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12-07-2016, 09:22 PM
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#4 |
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Member
Join Date: Mar 2011
Location: houma louisiana
Posts: 432
Likes: 52
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Re: Lifter rule in Stock
This new rule is smart for us Racers that have lost good motors to those JUNK Ceramic Lifters!!!! and for NHRA to check cams.
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12-08-2016, 02:18 PM
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#5 |
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Member
Join Date: Sep 2011
Location: Oklahoma City, OK
Posts: 215
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Re: Lifter rule in Stock
Does this mean that Hydrualic rollers can be replaced with Solid Rollers?
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12-08-2016, 02:24 PM
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#6 |
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Member
Join Date: Nov 2005
Location: cloquet mn
Posts: 468
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Liked 69 Times in 32 Posts
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Re: Lifter rule in Stock
Not sure in the roller stuff, but that is where
You would see the largest gain not flat tappets.
__________________
Ron Mattson 5015 STK |
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12-07-2016, 10:30 PM
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#7 | |
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VIP Member
Join Date: Oct 2008
Posts: 2,128
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Re: Lifter rule in Stock
Quote:
Could have a Max Spring Rule instead! Simpler.. D |
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