Quote:
Originally Posted by kevlarmd
A follow-up newbie question on the original, hope no one minds. With the replies above, are you driving the car as a daily driver shifting at these higher rpms or are you referring to times when you are on a track? If I shift at these higher rpms during my normal commute, then I would never shift higher than 3rd gear without getting a fast driving award (and would definitely get one at 5000 rpm in 3rd gear!). I just don't get it why shifting at these higher rpms is "good" for the engine - seems like an awful lot of potential friction. If it's better for the engine and the IMS bearing to be driving the car hard, could someone clarify what they actually mean by this for the person who drives their boxster as a daily driver. I've currently have ~61000 on my 2003 S and would love some advice to help me keep her running as long as she can.
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This very question was answered on another forum today, I don't know how accurate it is but it seems reasonable. The response said basically that you need to use enough RPMs to provide cooling/lubrication through oil transfer, in other words the oil bump needs to be pushing enough oil to protect critical parts. From what I could deduce from the thread you should be able to accomplish this on the low rev end with shifting in the 2.5 to 4k range is my guess. Yes if you shift as high as every one says you won't get out of 3rd gear (in a Box 'S') without getting a ticket on most roads. I drive my car two ways...I like to rev it over 5 to 6k because it is fun (which of course is why I bought Hankook tires for $450 because the rears will wear fast) on the other hand for more rational driving I'll shift between 2.5 and 3.5 making sure not to lug the car, easily done if you understand when to/not to press on the gas i.e. hills and such.