Low RPM power drag
#1
Low RPM power drag
Running a stock 2005 Mini Cooper S with 15% pulley. My issue is that there seems to be a fairly substantial lag in RPM power-up from idle to about 2500 RPM. Unless I drive the car like a granny, I have to rev up to 2500 RPM before I can engage the cluth from a full stop to get the car moving in 1st gear. If I drive it like every other car I have ever owned, the engine bogs down until the supercharger can spool up enough. I end up having to slip the clutch quite a bit to prevent spinning the wheels when starting from a dead stop due to the fact I have to rev up to 2500 RPM just to overcome the supercharger lag. Driving aggressively is no issue, but if I don't want to squeal out every time I start off, I have to slip the clutch much more than normal, and seems I will prematurely destroy the clutch. It seems to me that at idle, the supercharger pull is bogging the engine down. I asked my dealer to raise the idle up to about 1200 RPM, but they said that can't be done. Would switching to a lighter flywheel / crank pulley help overcome this problem? Or perhaps an ECU re-map will allow more low RPM power? The car is recently tuned and has no other performance issues.
Thanks, Chuck
Thanks, Chuck
Thread
Thread Starter
Forum
Replies
Last Post
PelicanParts.com
Member Group And Special Buys
0
08-19-2013 02:11 PM
bmwmigration
Off Topic
0
03-30-2009 05:42 PM