Technical > Matt Shaff's Engine Shop

duration change with lash change

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THE FRENCHTOWN FLYER:
I also run tighter than spec.

I have friends who set their lash, ran the engine up on the dyno @ WOT to simulate race conditions, and quickly shut it down and checked the lash.
It grew by .030". This on an iron block, billet aluminum head. Yikes

wideopen231:
.030 sounds like other issues. I have run our Top alcohol stuff up to 200 and checked valves.Normal was .008 to .015 growth on aluminum block and billet heads.

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