In Reply to: Want a quicker 540i posted by Doug on August 28, 2001 at 09:26:07:
In my 94 540 I did Conforti engine chip, dinan transmission chip and a 3.15 limited slip differential(+more stuff). The 3.15lsd really helps the car get off the line and it doesn't really effect fuel economy on the interstate(23.5mpg for a 300+hp V8 is great in my book) I bought mine from Vines BMW in Alabama. It is out of a used 750il and it needed to have the "input-flange" changed out to a 540 style. That's it, I think I paid $475 a couple of years ago for it. It also adds a limited slip which the 540 doesn't have from the factory - better traction! It does not require any changes to the speedo - the pickup for the speed sensor is on the back ot the differential, so you're all set to bolt it in!
I would suggest the engine and transmission chips too to make the car into a stomp-it and hold-on car. The engine chip adds a real 19hp and 33ft/lbs of torque, I combined this with a high-flow induction tube from Dinan and the tranny chip - the tranny chip keeps you from manually selecting the "sport" mode in the transmission - it does it for you when you need it and it lets you cruise around quietly in "drive" the rest of the time(actually the chip does more than that, but later ;-)
Try those things and I know you won't be dissapointed!
p.s. check out the quicktime movie below.
Recently when I purchased my '95 540i I selected an automatic over another the dealer had that was a manual... (still kicking myself). Anyway, I like the speed and torque, but that only happens when you get the rpms up. Off the line, the car is not quick. I've heard of chips etc... What suggestions do you have on purchases and driving tips (short of neutral drops) that would make this car quicker off the line?