What will lower compression ratio when it comes to cams? Duration or Lift?
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What will lower compression ratio when it comes to cams? Duration or Lift?
I know that wilder cams will always lower your compression, but does anyone know if Lifts or Duration that causes decrease in compression?
Joined: Feb 2006
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From: Palmdale, Ca, USA
Re: What will lower compression ratio when it comes to cams? Duration or Lift? (integra123)
Duration will reduce cranking compression but will not reduce it when the engine is in the power band of the cams. Lift has nothing to do with it. Dan
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From: Atl. Beach, fl, duval
Re: What will lower compression ratio when it comes to cams? Duration or Lift? (Dan Ruddock)
When your VE is low so is your dynamic compression, when you operating in the design spec of the cam and head, primary or secondary, and you VE increases so does your dynamic compression. 4-valve motors are known to go above 100%VE, thierfore increasing dynamic compression above static, this happens at peak TQ.
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