Why does 20 psi @ low rpm = more load than high rpm in SD?
#1
Why does 20 psi @ low rpm = more load than high rpm in SD?
I see this all the time, if I floor it from a low RPM I hit higher load cells than if I floor it from a few thou higher. Is load calculated VS rpm?
Im trying to understand how I will make a load based boost control work, but first I need to understand what the difference in load vs psi is, let alone Im on SD so load= psi, but .. its definitley not the case!
Im trying to understand how I will make a load based boost control work, but first I need to understand what the difference in load vs psi is, let alone Im on SD so load= psi, but .. its definitley not the case!
Last edited by 211Ratsbud; Nov 10, 2012 at 06:48 PM.
#2
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You're making the engine work harder by flooring it from a lower rpm. Someone correct me if my explanation isn't making sense as it is late and I have worked too many hours in the last 2 weeks.
There is more exhaust energy for longer the lower the rpm you begin your pull from. The difference in a pull for me from 2.5k and 3k is a difference of 10 higher load @ 500rpm sooner @ 2.5k.
Hope that helps a little.
There is more exhaust energy for longer the lower the rpm you begin your pull from. The difference in a pull for me from 2.5k and 3k is a difference of 10 higher load @ 500rpm sooner @ 2.5k.
Hope that helps a little.
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