Jerry is a nice guy and very helpful.

 

So Jerry told me today that the JCW is fully supported and he has run his on "high" using 91 fuel since day one, no issues.

 

What did the "kit" do for your S? Just raw speed, top end or midgrade?

 

Will this install void the warranty?

 

I can barely tell the difference tbh, little more pull at 5k +. People forget the actual bhp of a S is 200-205 so 209 is not much of a jump.

 

It is a plug-in module so no way for anyone to tell it was in there if you remove it before going in for service. Now if you show up for a service appointment and leave it connected and try to get warranty work done on your engine, I suppose they could refuse the claim.

 

I also just installed some NM Engineering lowering springs and rear control arms and I have to say, that is a great bang for the buck if you are looking to lower your car and improve handling.




Full Review:
http://www.motoringfun.com/2015/09/09/lower-is-better/

 

Yes, difficult to make actual comparisons without base numbers to work from. Using published HP numbers from MINI (which are very likely under-rated) and then numbers of "modded" engines can be misleading.

One would think that whatever the base HP is on a stock car, the JCW package would add 20HP to that number whether it be base 189 HP or 200 HP (JCW kit would tack an additional 20 HP to whatever number is true).

I've read that the actual stock JCW MINI although rated at 228 HP is actually pushing over 250 HP.

Hoping to see some Dyno numbers on a stock MCS, then one with a factory JCW kit installed, then one with an aftermarket kit added and finally one with a stock JCW MINI.

How great would it be to get some actual numbers for all variations to compare stock vs. various steps of modification.

I know someone has base numbers on the stock MCS and most probably one with just the after-market tuner kit (no factory JCW kit added).

Just guessing biggest bang for the performance buck would be an aftermarket tuner added to a stock MINI (around $400) vs a factory JCW exhaust and flash for $2400.

Again without actual numbers, it's hard to say, if the aftermarket tune adds 25HP to the base HP numbers and the factory JCW kits adds around 20 HP (while keeping the warranty intact). one would probably be smart to pay the extra for the factory kit. If adding both bumps actual HP by say 40 from the base numbers, then one would have to weigh the pros and cons of adding both.

I know in the JCW section of this forum a fellow is going to Dyno his stock JCW F56 and post the results. I'm patiently waiting to see those results.

 

Is the 200 - 205 HP you mention for the S (and I have no doubt that number is accurate due to BMW's conservative published HP propensity) measured at the crank or RW?

If 200-205 HP measured at the crank on a stock S then "Clark" at 231 at the crank would be a significant jump.

I'd love to see some base Dyno numbers posted on the base MCS and JCW and then some for modded versions (e.g., just the MINI JCW pkg dealer pkg, another just w/ the various modules installed if to get a feel for what each brings to the base car and whether expense justifies the gains.

Certainly "Clark" with the MINI dealer installed JCW pkg and the performance module, the car has to exhibit some great performance gains over the stock car.

Honestly for around town, the MCS is really peppy and fun to drive as stock. Another 30HP would make it insane.

 

Thats at the crank. Btw I am running the Burger Tune @ +5 boost which is around 260bhp. JCW car is definately not 250bhp because I crushed a factory one already., but the I also have probably 50-60tq on the factory car too. Will be getting the Manic Stage 2 in November along with the new M7 catless downpipe.

 

I have the NM springs snd tear sway too. Very happy

 

Thanks for the clarification. Great membership on this forum.

FWIW I found this dyno test of a stock MCS:

https://www.northamericanmotoring.co...e-success.html

Base MCS Dyno shows 206 HP @ crank and 164HP @ wheels. I could not figure out what 308.9 number represents in lb ft of torque produced (they obviously use another measurement other than lb. ft.

Discounting the torque numbers, "Clarks" perf numbers with the JCW kit installed shows 231HP @ crank and 206 @ wheels. compared to 206 crank HP and 164 WHP dyno for a base MCS.

If all things are equal, a 40+HP bump to the wheels over the base car should be quite noticeable while maintaining full factory warranty. Also have to assume a similar increase in lb ft of torque delivered over base car too.

Interesting, and making me consider going the JCW dealer kit route for our MCS

 

Wow - that's interesting. So his car was putting down 164hp at the wheels and 205.8hp at the crank. NM is Newton meters. 309 nm equates to 227.9 ft/lbs. Still higher than the published 189bhp and 206 ft/lbs that MINI claims for a stock F56 S.

For the record - I don't think the JCW kit added 40 hp to Clark. Keep in mind, that thread shows he used a MAHA brake dyno and I used a DynoJet. Not sure if there is a consistent difference in how the 2 dynos are set up (ie. maybe load dyno vs inertia dyno?). But regardless - still good numbers that are better than published stats!

 

It should also be noted that the "Corrected Power" listed as "Norm-Leistung" is blank from his dyno results from the MAHA dyno. This number may increase his results a bit as well.

 

No way does that kit give that kind of bhp gains. I have driven several cars with it and the difference is extremely minor. The BM tune even in base form is night and day over stock. Just a fyi if you think a real JCW is not a good bang for the buck the tune kit is much worse in terms of performance gains.

 

I was just looking at the numbers reported from the Dynos. Do not have a dog in this hunt but trying to determine what gains each modification actually provide.

Everyone seems to use the published HP and torque figures provided by MINI as a start point, which most believe are under rated (and will skew any Dyno numbers for modifications added into bloated HP and torque gains). I finally found a Dyno result for a base F56 showing numbers more in line with the cars actual "felt/perceived" performance. I believe this test was run to compare the new F to the outgoing R series car.

Since "Clark" had published dyno numbers with only the dealer installed JCW kit installed it appeared fair to compare the Dyno numbers of the two tests.

Most agree (as you did), that a base MCS actually produces around 200-205 HP at the crank (compared to MINI 's published number of 189 HP), which seems to be backed up by the Dyno result of 206 HP at the crank I stumbled upon. Can only assume the 164 WHP numbers to be correct also.

If Clark had been Dyno tested as a stock car prior to the kit install, we would have numbers from the same Dyno machine on the same car (before and after). So, the next best thing is to find a dyno test on a base MCS and compare results.

Ideally, I suppose what we really need are numbers from a base MCS, another with the different modules added to that same car, and finally one with the dealer installed JCW kit and the modules switched out on the same dyno set up. (unlikely to find this type of comparison anywhere on the planet).

I am looking for some way to keep my MINI within the factory warranty coverage without having to add or pull stuff off before going to visit the dealer. Also do not want to suffer any CEL's or limp modes for unknown reasons due to a mod I had done to my car. Now that's just me, and in no way criticizes anyone who has modified their cars with tuners or performance modules.

Short of buying a JCW car, I want to see what gains I would get for the $2400 JCW factory authorized kit from MINI compared to my base MCS.

Some seem to think the kit made big improvement while others say the gains are minor. If I'm going to spend $2400 for a performance kit I want to see a noticeable increase in performance when I get in the car. I wonder if the exhaust noise generated by the JCW kit doesn't make some think their cars are much improved.

Again, this all goes to individual perception rather than actual comparable data. Which is why I'm trying to find comparable Dyno results on similar cars with various stages of tune.

I'd love to see a base MCS run on the same Dyno as "Clark" to get the best possible comparison.

 

We are planning on having a group Dyno day in South Florida on the same Dyno and hope to have a stock F56 S and a factory JCW present for same-day comparisons...

 

That's great to hear. I cannot wait to see what results are posted.

You on the east coast or west?

 

I think he is in the Florida on the east coast.

I have the dealer installed JCW kit and am one that hardly felt the gains.
for what it's worth.

 

Have a stock Cooper S with a race chip . How much for 3 pulls?

 

I have the JCW kit installed on mine as well and can say it has a "slightly" more pull than stock MCS...and I mean slight. I can attest to this because we own two '15 MCS so its a bit easy to drive back-to-back and compare in the same road/gear conditions.

That being said, it does sound freaking amazing compared to stock. I still plan on running the NM module on top of the JCW tuning kit.

 

Dyno day will be in Ft. Lauderdale, FL. Shooting for early November... Cost should be about $40 for 3 pulls per car.

 

Figures, I will be down in December visiting family. I do not have a dog in the hunt either. Just sharing my experiences. Oem options just do not offer much unfortunately. Imo the Burger is the best option because its more versatile and removable. I am going Manic because it offers the most bhp gains. Wish MINI was more performance oriented like VW, Ford Focus RS or the new Civic SI R but MINI is going luxury route.

 

Really not what I was hoping to hear from owners.

Our dealer was touting how great the kit was and how amazing it sounded and how much better the car performs.

I wanted to see a very noticeable boost to the car's performance when I step on the gas pedal, and was not in the least concerned about the sounds emanating from the exhaust.

IMO I think the stock MCS sounds great as it is, only wish MINI offered an add-on that would bump HP and torque about 45-50 HP. Knowing that isn't likely to happen, aftermarket appears to be the only option or just leave it stock (which isn't at all bad either).

Should have bought the JCW from the "git go".

 

I wish Jan/RMW would offer something for the f5x cars. My cammed, hybrid turbo,PnP head, rods and pistons,meth injected R56 Fjcw ran very strong 298whp with great drivability and reliability.