Variable lifters?
03-04-2005, 07:52 AM
#1
1st Gear Member
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03-04-2005, 04:35 PM
#5
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Join Date: Aug 2004
Location: ABQ, NM, USA
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RE: Variable lifters?
They claim to be more 'squishy' at low rpm and become 'solid' at high rpm, based on their construction. I can see how time would be a factor in allowing oil to get through a small hole. So because of that, it would rob some lift and duration at low rpm, which is the same as saying 'variable'. Can it be measured? Probably with a vacuum gage using both types of lifters. More accuracy would require special equipment...
I guess if the only thing you change is the lifters, a vacuum gage would be good place to start. Let us know how it goes if you do that. I used them since build one, so did not have the opportunity.
I guess if the only thing you change is the lifters, a vacuum gage would be good place to start. Let us know how it goes if you do that. I used them since build one, so did not have the opportunity.
03-04-2005, 06:33 PM
#6
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Join Date: Jul 2003
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Posts: 11,394
RE: Variable lifters?
I use them mostly in auotmatic cars....they have been around for about 15-20 year....they are very durable....I put my brother 350 together about 10 years ago not 1 problem and he runs the sh it out of it shifting around 7k....they really helped out the vacuum for power brakes..didn't have to use the booster can
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