> Karl wrote: > > What you're saying about ambient inlet pressure making no > difference on a turbocharged engine is not quite correct.
> ...the turbo operates on a pressure ratio. The lower the ambient > pressure at the turbo inlet, the longer it takes for the turbo to > spool, because it is feeding the engine less air at each rpm than > it otherwise would. Ah! You are talking about rapid increase in engine RPM. I was referring to power output - sustained. So, if you man "it takes longer for the turbo to build pressure" rather than "it takes longer for the turbo to spool" - I fully agree. > So a less restrictive filter results in faster spool. I also > found that top end performance was improved, with a higher max > rpm at max throttle. Is isn't even subtle. Taking off from a > stoplight is a different experience. Hmm. That doesn't match my experience with various diesel turbo engines. But if your experiences were otherwise, who am I to argue! _______________________________________ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
