Lifter rule in Stock - Page 2

Casey Miles · 12-05-2016, 11:39 PM

If I misunderstand this change, sorry! The guys who use solid lifter engines are getting screwed over do to no chance on manipulating the lifters. It's bad enough that .010 in a hydraulic is considered OK by NHRA. The engines HP were based on the lifter working the way the manufacturer designed it, not the way they are now with a built in lash. Might as well let everyone use solid roller cams and get over with it.

Casey Miles
248H Stock

west coast · 12-06-2016, 12:08 PM

If all cars can have roller lifters then what are the penalties for HP all non roller lifter cars get HP, lets say 40 hp. What are the rollers lifters and cams worth, don't tell me they there are no gains there. I few people cry about there ceramic lifters coming apart now they want roller lifters for free. Nobody forced you to put ceramic lifters in, the rules don't state you have to use ceramic lifters.

SSDiv6 · 12-05-2016, 11:23 PM

This is the actual language on the 2017 rule change.
It's not clear enough and it needs to be explained better.
It does not say that hydraulic lifters can be replaced with solids.
It still gives the requirements for checking hydraulic lifters.

Mark Yacavone · 12-05-2016, 11:50 PM

Quote:

Originally Posted by SSDiv6

This is the actual language on the 2017 rule change.
It's not clear enough and it needs to be explained better.
It does not say that hydraulic lifters can be replaced with solids.
It still gives the requirements for checking hydraulic lifters.

After re-reading this, I think it gives the okay for ceramic bottom lifters, ..about 15 years after the fact.
I'll have to call my law firm , Dewey, Screwum , and Howe, and get an interpretation.

Jim Wahl · 12-06-2016, 12:14 AM

Quote:

Originally Posted by SSDiv6

This is the actual language on the 2017 rule change.
It's not clear enough and it needs to be explained better.
It does not say that hydraulic lifters can be replaced with solids.
It still gives the requirements for checking hydraulic lifters.

It also still says you must use OEM rocker arms or adjustable push rods (not both)????? The roller rocker OK has been law for several years? Jim

.

12-05-2016, 11:39 PM	#1
Casey Miles Senior Member Join Date: Jun 2006 Posts: 706 Likes: 128 Liked 508 Times in 92 Posts	Re: Lifter rule in Stock If I misunderstand this change, sorry! The guys who use solid lifter engines are getting screwed over do to no chance on manipulating the lifters. It's bad enough that .010 in a hydraulic is considered OK by NHRA. The engines HP were based on the lifter working the way the manufacturer designed it, not the way they are now with a built in lash. Might as well let everyone use solid roller cams and get over with it. Casey Miles 248H Stock

12-06-2016, 12:08 PM	#2
west coast Senior Member Join Date: Dec 2008 Location: Rainy Washington Posts: 613 Likes: 12 Liked 230 Times in 75 Posts	Re: Lifter rule in Stock If all cars can have roller lifters then what are the penalties for HP all non roller lifter cars get HP, lets say 40 hp. What are the rollers lifters and cams worth, don't tell me they there are no gains there. I few people cry about there ceramic lifters coming apart now they want roller lifters for free. Nobody forced you to put ceramic lifters in, the rules don't state you have to use ceramic lifters. __________________ James Boyce 6052 K/SA Stock National record holder 2015,2018,2 times in 2022,2023

12-05-2016, 11:23 PM	#3
SSDiv6 VIP Member Join Date: Feb 2003 Location: Mesa, Arizona Posts: 3,048 Likes: 712 Liked 1,608 Times in 585 Posts	Re: Lifter rule in Stock This is the actual language on the 2017 rule change. It's not clear enough and it needs to be explained better. It does not say that hydraulic lifters can be replaced with solids. It still gives the requirements for checking hydraulic lifters. Attached Thumbnails