Yikes... installed Alta/Perrin Billet R56 Turbo in a 2012 Cooper S with automatic transmission (32K miles).

Everything runs absolutely phenomenal... Except going from 1st to 2nd . It's slipping. It appears the tranny cannot handle this much torque?

Any suggestions out there to help compensate for the power? Torque bushings? What do you guys think? Sorry newbie here...

 

I would contact Manic and see if they can tune it so the tranny can handle the torque better.

 

Thanks Grizld700! Will check that out!

Wondering if running a Sprint Booster after ECU tune is too much?

 

Maybe your wheels are just spinning? ; )

 

I just checked your signature. You're not running a Tune AND the JB+ are you?

 

Yes I am... running JB+ and tune... umm... a "no, no"?

 

Take that JB off!!! Very very risky, and highly unadvisable. Take it off, and drive it for 100 miles or so, and see if you still have the issue. At the very least, I bet it helps a little.

 

Be sure to do the whole un hook battery procedure to reset the adaptive strategy when you take the JB off.

 

Good idea... yes will unhook negative and remove JB+... will report back on results.

Thanks again, GrizId700!

 

Holy crap!!!
You are one lucky motherf#$%er to still have a motor!!! Well..a motor with no holes in the hood from existing engine parts anyway.... buy a lottery ticket!!

Lol.
Better unplug the jb+......
With one...you don't run or need the other!!
I almost thought it was a wrx guy trying to troll folks when I read it!!

 

I am a rookie to the Mini world... just bought the 2012 in July. Bought everything I could and slapped it together... oopsies...

 

Let us know how it goes Also, you should be fine running the sprintbooster. That only makes the car think you're pushing the pedal further down, so no biggie there.

 

You got busy quick!

 

A tune and a JB+!

 

What tune are you using in your automatic?

 

VR Tune by Vivid Racing...

This tune worked out pretty good. Smooth power all the way through the curve. I had 600+ hp Twin Turbo Z back in the day and the tune on that thing was a nightmare.


As someone suggested, I am going to look into a Manic tune.

 

I think I'm going to start a new thread for this debate... Tune with JB+, yes/no... I really wonder...

 

What's the point of running both? The JB+ is meant for people that don't want to mess around with altering the DME. If you have a tune and want more then just ask for a more aggressive tune. The tuner has designed the tune with specific values and by putting the JB+ on top of this you could screw this up and harm your engine.

It's like lying to your lawyer or doctor.

 

+1
well said!!
You can do MUCH MORE with a tune than the JB....
IF THE TUNE is not aggressive enough...get it ratched up....done on a dyno, the tune can be adjusted to the very edge of engine destruction if you wish...or mild...
Issue is...the jb is made to take a STOCK TUNE to a safe level of performance gain...
Put that on a tune...a tune is already MUCH MORE AGRESSIVE than the factory tune....your safety margin is already much narrower....then add a jb...ouch.
It is your car...you can blow it up if you want. We warned you.

 

That's a good way to put it.

The JB+ fools the ECU to make it think there is less boost than actual, and the ECU will compensate with more boost. It is a quick and easy way to obtain more boost. The proper way to do it is modify the tune to produce more boost on its own. JB+ behavior is calibrated for how the stock tune responds to boost readings. Conversely, a custom tune is calibrated for real boost readings, not what a JB+ is telling it.

 

You might find more power with just the tune, JB+ could be holding your tune back from achieving its true potential. You would know after 100+ miles or so.

 

UPDATE: Disconnected battery, removed JB+, installed NM Torque Arm Inserts and drove a little over 100 miles. The slipping seemed to happen less after removing the JB+...

However, the car just threw a "Transmission Malfunction" warning during a spirited drive. Tranny feels ok though. Restarted engine and warning went away. Sigh... "Death Rattle" for tranny?

 

I think you may have transmission issues. I honestly don't think it should be slipping at all. With or with out a tune!

 

Yes, but the damage, if there is any was most likely caused by running a tune with the JB+.

 

Did your transmission slip before the JB+ and your tune?