2nd Gen R56 Cooper S Most liked posts in thread: Expected performance after intake valve cleaning?

Don't expect it to be like night and day. But things should be better.

Each car seems to be different on carbon buildup. Things like driving type and maybe environment come in to play.

For example mine weren't cleaned until I hit 100,000 miles. The shop I used was surprised at the low buildup. Said they have had low mile cars that look worse. Possible difference, my car was used for long distance commutes and racked up big miles in short time on long hauls. Not a grocery getter.

As far as oil goes. You are pretty much in spec as far as MINI is concerned. They believe 1000-1500 miles per qt of consumption is ok. Don't recall the exact number.

 

My 08 Clubman was night and day after being blasted. Won't let that happen again

 

My oil consumption isn't terrible. As a rule of thumb I check my oil every other fill up. So basically twice a month. Maybe in 5000 miles I add a total of a quart over time.

The only time I recall being down a whole quart was after my trip to the dragon this year. My round trip was roughly 1500 miles and when I got home I was down an entire quart.

 

If you pull the intake manifold off the engine you can see down inside the intake runners in the head.... You will be able to tell pretty quickly how much carbon buildup you have.... The buildup restricts flow... If a lot gets removed, you should feel a nice performance pickup after the ecu relearns the new adaptations...

Much like, no two people drive the same, no two buildups are the same.... Slow, short daily drives that don't let the engine reach operating temperature are the worse....

 

Glad that worked well for you. Enjoy the added power & drivability. Looking forward to seeing those pictures.

 

I installed a BSH oil catch can and blocked off the PCV hose to the throttle body soon after I bought my car. I haven't had any problems. I empty the can monthly and I get a few ounces of oil/water mix each time.

Dave

 

Audi has them for $11.00 or so each...

"For those interested in getting the cap to block off the firewall side PCV port on the valve cover that leads to the intake manifold. It can be purchased from the AUDI parts counter P/N 036131510 Vent Cap....."

Go here.... http://www.motoringalliance.com/forums/cooper-s-clubman-s-engine-drivetrain/15334-possible-fix-carbon-issue-2nd-gen-mini-s-jcw-6.html#axzz2dD0O6enf

 

I bought a BSH Dual Boost Tap to block off the PCV line to the throttle body. I have a boost/vacuum gage that I connected to it for the manifold pressure signal.

BSH R56 Mini Cooper Direct Dual Boost Tap - BSH Speedshop

Dave

 

I have two essentially new caps to block the PCV hose if anyone is interested. I'll sell both for $10, plus shipping. Reason I'm selling.....I sold my N14 shortly after installing these caps.

 

The whole reason for the Oil Catch Can is to collect the oil/water that would otherwise go into the intake system.

Don't ever block the PVC to the throttle body without also installing an Oil Catch Can on the turbo side PVC line.

Dave