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Old 05-28-2010, 09:57 AM   #18 (permalink)
robchalmers
Master EcoModder
 
Join Date: Jun 2009
Location: UK
Posts: 659

Chug - '96 Volkswagon Polo CL
TEAM VW AUDI Group
90 day: 49.42 mpg (US)

L'Autre - '03 Renault Megane Sport Tourer Expression
Diesel
90 day: 45.02 mpg (US)
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Quote:
Originally Posted by bgd73 View Post
start with learning the vehicle...

coincidentally, the TDI thread I just browsed through spoke of 2000 rpm driving...where does that leave the oil pump?
most engines have pump suited to scavenge and supply through out the majority of the useable range. I know that the older 1.9s supplied well from 1100rpm upwards. the higher rev range wasn't really an issues as the torque/power tailed off after 3600.. most people didn't go that far so over pressuring was in frequent and dealt with by the breather.
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