F55/F56 Anyone know the diff between these two tuning kits?

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Nov 15, 2017 | 03:32 AM

#26

Clutch Wotan

5th Gear

Joined: Sep 2014

Posts: 662

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From: Germany Hamburg

Quote:

Originally Posted by bratling

They're not quite the same. The factory JCW has a larger turbocharger, so it can make more power by pushing more air into the engine. There are other differences but that's the big one. This is why the JCW tune doesn't make as much power as the fJCW engine â€” the hardware isn't there.

But as others have noted, when you stack a JCW tune with a piggyback unit on a non-Jewish engine, you end up outperforming the fJCW with more torque down low and more total power up high.

I thought the Turbo is the same, however diameter of charge hose is bigger with the JCW ( Therefore some plug & play intercoolers F56 S are fun use the small inlets for nothing )

The JCW pistons have a compression of 10:1 while the Cooper S is 11:1, that and the above (larger intercooler & dia) lead to more power.

I run my MCS with the Burger Software and the Tuning kit, the car reaches its Topspeed very quick, and is a different car until 200 Km.

But at the end a real edu tune is the best, to avoid that rubber sling feeling.