Re: Souping up an Eta

[Scott Ruffner <jpr9c@xxxxxxxxxxxxxxx>]

I've got an Eta - but a disclaimer is in order: I'm suffering from convert
syndrome - this is my first BMW, and I'm truly in love, and it's been a
while since I felt that way about a car.

On Wed, 29 Jan 2003, bmw-digest wrote:
> DE is Driver Education event.

Can't wait to try one of these...I'm planning on getting into some
auto-crossing this coming year, and I'd like to get some proper
training...

> I've read that a Jim C chip and a 3.25:1 differential really wakes the
> car up.

This I can speak to.  I bought a chip from a guy on the e30.net bulletin
board, and have been quite happy with it.  It alters the gas/timing map.
There is a supposed 15HP gain, and I'd say that's real, in a
seat-of-the-pants way.  However, the downside is the requirement for 93
octane gas to make up for the timing advance (you get a lot of ping
otherwise), and the car sounds a little lean/pingy when you push the
engine.  I do not wind the car up normally, so the rev limit increase just
wasn't that important to me.  I'd recommend upgrading to the i head (and
more importantly, springs) if you're going to work in that band.