Making the 3.0 manual e89 a bit more responsive

Squiddie

Member
I have a manual 3.0 e89. Overall great, there are just some nitpicks I'd like to improve:

The drivetrain moves a bit much on load changes. I am thinking more rigid engine mounts. Are they compatible with anther BMW's that has a heavier engine? What's available?

The gas pedal response is a bit slugging. I think more so than my e46 3.0. I know there are software changes that remove a deliberate delay. Any pointers to solutions that are prepared for the e89 3.0? I am talking about car in neutral, just spooling up from 1500 to 3000 while the car is standing.

I still have my clutch delay valve. I don't think it is that bothersome, but out of curiosity, are there premade products to get rid of it.

Can somebody clarify whether the e89 has a rear subframe with rubber bushings?

Thanks
 
Sorry I can't help with your question regarding engine mounts - hopefully someone will know!

As for the sluggish gas pedal response, have you tried the accelerator reset? Link here describes how to do it:- https://z4-forum.com/forum/viewtopic.php?f=2&t=20878&p=1035740&hilit=accelerator+reset#p1035740

The N52 engine can be remapped - power increase isn't huge but it may make it more responsive - I'm sure Marlon on here had his done so might be worth asking.

You don't need a kit for the CDV removal - just undo the pipe, remove the CDV and put the pipe where the CDV used to be! :thumbsup:
 
I'm interested in what makes you feel the drivetrain moves too much under load?
On standard suspension I was too preoccupied with body roll and understeer to worry about the engine!

You don't have the handbrake on when going from 1500 to 3000 rpm do you? That takes the response right out of it.

The rear suspension is essentially a beefed up version of that on the E46 and E85, I believe the actual mounting bushes are the same size so in theory you could fit the bushes from the old Z4M or M3.
 
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