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Old 08-14-2010, 03:50 PM
  #5  
Tod74
Senior Member
RACING JUNKIE
 
Join Date: Sep 2007
Posts: 4,137
Default Re: Wrong

Originally Posted by TopspeedLowet
Originally Posted by bowhay
looser valve lash will give u more top end, tighter will give u more torque of the bottom
This advice given above is exactly wrong. More lash gives less duration and tighter gives more duration. More duration will enhance the top end and likely remove some from the bottom end. You must respect the manufactures intended valve lash and not deviate more than .010" either way, too louse a setting will hammer the lifter off the lobe causing damage.
Bruce

X2....I know first hand about the roller damage. I used to think they would tighten up when HOT...of course this is 100% wrong but back then I didn't know...I set them cold just a little loose thinking they would be just right when hot....it's the opposite.I busted a roller lifter(and a block) after 20 something passes. live and learn.
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