Interestingly enough, the day before I did the pulley and ECU, I had the dealer service my car and reflash the ECU (sorry, I don't know what version), and the cold start problem disappeared and the stumble was barely noticeable if at all. With with EVOTECH ECU mod, the cold start issue might have returned (only a couple of starts so far, but did not start the first time). And I get an occasional slight stumble in 1st, at first excelleration, could be operator error however . I will post more details after a week or so.

 

greatgro teldon

Mine came in at 158hp (at 90 Deg F.) for a virgin MCS
so numbers like Davidrs 154 to 159 is not out of the ball park.

e-mini-Austin

Not before and not after

_________________
DS/B/B MCS with every option known to man
- CD changer

 

My before and after at Ray's Dyno shop:

Base run: 162.6 WHP, 143.3 Torque

(That an early '02 model with only BMP Intake and Jack-in-the-box antenna ball)

After Pulley and ECU mod: 177.7 WHP, 160.0 Torque

Stock exhaust, 16x 6 1/2 AK tyres Monza wheels with Bridgestone S-03's

That's a 15 WHP gain. That "After" dyno run was at 97 deg. f.

I will go back to Ray's shop and do another Dyno run in a few weeks, after
the ECU learned about it's new "Master".
I think I'll get Ray to install a rear sway bar and springs while I'm there.

 

Thanks to Ray and TonyB for helping make this event happen!

I had a blast with all of you. Always interesting doing the dyno testing - it's great that so many folks got to see the vast variance from car to car to realize what part the dyno plays - just a small part of the picture. Track testing and performance runs are a big part too in developing performance products.

I hope you all have fun with your newfound power and friends!

Randy

 

Thanks Randy for a great experience in both getting the pulley and ECU, it is a HUGE difference, and for meeting you and all the other MINIACS in San Ramon. I just wish I could have stayed around longer! Good luck in your races this weekend!

 

David R - nice pics - thanks! I am trying to understand how to do the pulley access thing by lifting the motor.....anyone know the exact step-by-step procedure?
Thanks in advance!

 

alec, you are in the right place (performance mods)
Check the "how-to" list and you have it.
Good luck, Woody