Revs and engine management - BMW Forum - BimmerWerkz.com
3-Series (E46, E90) Chat relating to the BMW 3-Series from 1999 to Current. Models include: BMW 316i, BMW 318i, BMW 318Ci, BMW 320i, BMW 323i, BMW 325i, BMW 330i, BMW 328 Ci, BMW 328i, BMW 325i/xi, BMW 330Ci, BMW 320d, BMW 330d, BMW 335d.

 
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#1 (permalink) Old 05-11-2006, 05:02 PM
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Revs and engine management

I've been running my '99 323i SE for round about a week now and I noticed a couple of things: for one it seems to idle slow at about 700revs but needs about 1500rpm to take off. This is not like my old E30 320i which idled a little faster but seemed to have more torque in the very low revs range and never stalled. There are no mods on my E46 as far as I know, so would this be the normal case for an un-chipped 323i? It needs quite a poke on the accelerator to balance the clutch. Frankly I'm not really satisfied with it as I reckon it should pull more at less than 1500rpm.

Also when the revs climb to 4500+ it seems jumpy and it doesn't climb down soon enough. If you're hitting the next gear quickly you shouldn't have to wait for the revs to drop.

How does this compare to your experiences; would this be sortable with a chip?
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#2 (permalink) Old 05-11-2006, 08:45 PM
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i think it just sounds like you dont like how the ecu is setup so yeah im pretty sure a chip will satisfy you...
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#3 (permalink) Old 05-12-2006, 07:57 AM
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it all seems normal. they all come down from revs slowly, this is beacuse of emissions: droppign revs quickly spikes the catalytric converter with a o2 to gas ratio it cannot handle.

i seroiusly doubt any chip will alter this behaviour appreciably. a 330 will
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