My 2003 Mini Cooper S has a bit of mods. Milltek cat back exhaust, Alta 15% pulley and a Dinan CAI intake.We have bit of a dead spot at 3000 rpm and I am sure software may fix it. Who can set me up? Reasonably of course.
Thanks in advance

 

My first mods were the CAI and the 15% pulley, and I never got a dead spot at 3000rpm. In that time, I used a JCW belt.

A dead spot can be caused by a slippery belt. Could you tell us which belt size are you using right now?

The last time I got a dead spot around 3000rpm was when I installed a ported/polished head, a performance cam and a set of colder spark plugs. Also I got also a check engine light ON. Finally, I got a fix: the air-pressure sensor was bad.

That's all the infos I can share from my own experiment.

 

Hesitation or dead spot can also be from running slightly too lean at a certain rpm range and load levels. Usually down low flat spots are caused by this and need a bit more fuel.

 

lol, when I saw the title I was thinking "WTF?!?! Back seat delete + battery pack?"

Sounds like you're on the right track on getting a tune/reflash... I'm still running the stock program but plan to update in the near future.

 

Get a Dino tune....about $350 for the tune, $100 for the Dino time, and maybe $300+ for the remote tune tool....
WMW and RMW both due remote tunes...
MTH canned tunes are pretty good...older, but many folks still like them if you have a place localy that can load them, might be worth a shot.
It might be worth a drive to a tune party...that way you will not need the remote flash tool...

 

I used the correct shorter belt from NAPA. Alta 15% pulley. It's not totally dead, you can just feel a slight flatspot/hesitation. Put in the Brisk plugs too. The car starts and idles well. No check engine lights. Gas mileage is still great when wifey drives it, about 30mpg

 

Try some RED LINE injector cleaner and make CERTAIN you are running 91 oct or better