Ideal lifter preload on a hydraulic roller setup

General engine tech -- Drag Racing to Circle Track

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rmbuilder
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Re: Lifter preload

Post by rmbuilder »

automotive breath wrote:
Adger Smith wrote:Shawn,

Has anyone tried the Sherman modified lifters in an endurance application?
I think they are modified to only have .015 plunger travel. I have a couple of NHRA Stock elem. customers that use them.
They are very common around no problem raceway with the stockers, I haven’t heard any complaints. From what I here you send him a set of lifters and he eliminates most of the plunger travel for a fee. I don't know if the endurance people have tried them.
We have run the Morel XLT, limited travel hyd-roller in our marine applications with good success. Many of these engines run WOT for minutes at a time and are very hard on valvetrain, which speaks to the endurance aspect. They have .030" travel and are set to 0 lash hot.
Bob
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