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Old 10-05-2023, 01:37 PM   #8
Doug Hoven
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Join Date: Feb 2018
Location: Jersey
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Default Re: Flat tappet lifter failure

While Reher-Morrison builds some very impressive pieces that I could never afford, I'm not sure they're the place to go looking for advice on your stock eliminator engine. The statement “A low-tension valve spring and a heavy steel valve is the worst possible combination for high-rpm reliability" is very easy to say when you're running "Bracket 2" and can run titanium valves, retainers, and don't care about valve spring pressure. I'm sure David Reher would say running a Qjet and a stock intake manifold is also a terrible combination for high rpm reliability. I think the only logical solution here is for everyone in favor of the rule to just start running roller lifters in their cars, and when (more likely if) a tech inspector sees a car with a roller cam that isn't supposed to, just threaten a lawsuit against the NHRA. At that point it must be their fault that they aren't going to allow you to run parts in your engine that you spent good, hard earned money on, and they will change the rule accordingly. OR, you just fix whatever problem you have with your engine, and run flat tappet lifters like the rest of us.
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