Dyno'd Today and Holy Crap I got 41.3 MPG!!
 

Interesting numbers - looks like I'm making as advertised power.

Results posted here with graphs and all the technical stuff for you guys to hash out.

Youtube video here.

On the MPG side - I zero'd out my BC and ran from Washington DC to Philadelphia on the I-95 corridor. According to the BC, and set at non-sport mode - I was at 41.9 MPG for a long time and then dropped down 41.3 once I arrived in Philly. Is my car being Mr. Optimistic or is it truly that good? I struggled to hit 30 MPG in my 06 MCS JCW.

wow, and it's a Cooper S!

Hubby borrowed Zippeee! to drive to work (to show the guys), and he got 38+ mpg on the way. His route takes him on a tollroad which is mildly hilly, but empty.

We got over 31 mpg this weekend on a fun run drive--was pretty fast in places and in heavy traffic in others.

That's great news!:thumbsup:

That means if the car I was driving before was getting 20 MPG and I was spending just over $100 per month on my commute alone... I can rationalize away just about $50 a month from the new car payment.:roll:

Just a quickie note: Using 12% drivetrain loss [same most of us use for the R53] your R56 was pumping out an average of 182 HP and 183 Lb-Ft uncorrected at the crank. I'd say that's more than advertised; impressive!

ah cool
 

I was hoping someone would run the loss numbers for me! :-) So I wonder if it hit overboost for the torque......

I'd guess the overboost might have been in play during the 1st run, but not the 2nd, hence the big difference in peak torque. You can see on your runs that over 5k RPM the torque is about the same between runs, which is after overboost is shut off.

I'd also be curious to know how accurate the OBC is regarding the fuel economy. On the R53's, it was all over the map, from grossly optimistic to slightly pessimistic.

I heard if you put duct tape over the holes in the hood it makes more power.

:lol: :lol: :lol: Now you're talking mac! :thumbsup:

I thought you need a couple of Power By VTEC sticker..I heard you can get close to 10HP from those stickers..:thumbsup:

eh.. I'm getting 29.8mpg average on my tank at the moment.. kinda like EPA states..

A good 75-80% is highway driving too..

PezRadar, have you been driving in sport mode or no?

Non Sport Trying to change gears between 3k-4k at most.. and have come no where near red lining ever on this car or anything really over 5k.. this is what the car is telling me.. Seems like all of your computers in your cars are going crazy.. lol

How can something like EPA rate it at most 36mpg and you all be getting 41mpg.

I do admit I'm driving about 70-80mph on those highways.

Keep it between 65-75 and don't put it in sport mode. The majority of my speed was at 65-70 mph.

I've found that my '04 MPG screen is quite "optimistic" during some Mythbusters-esque testing on my own. I filled the tank with gas, reset the MPG menu, as well as my trip mileage, then went on a long road trip.

Then, I filled up my empty tank, noting exactly how many gallons it took to fill up.

I then compared what the MPG computer menu said my average MPG was, with the actual mileage per gallon. (Divide the total number of miles driven, by the number of gallons used to refill the tank, and you get your miles per gallon).

The MPG computer said I got 32.5 MPG, while my actual math stated I got 28.7 MPG.

By no means am I a mathematician, but I do trust my math in this case. I believe the MINI's MPG figures are overly optimistic.

I've heard others say the same thing.

So, do this test on your R56, and please let us know what happens!

HOLY CRAP is right !

If I can get the advertised 36 MPG I'll be happy as a pig in slop.

Are the computers adjusted for the size tires your car is delivered with? A 15" wheel will have more revolutions per mile than a 17" wheel.

dean.

Thats about what I had estimated the HP to be yesterday too. You gotta love that! :thumbsup:

I have a feeling people are looking just at the screen where it fluctuates and shows your mpg as you are driving and not your average for your whole tank of gas.. or your ecu isn't accurate..

Tell me how many miles you get before you fill up..

Right now my 13gallon tank is going to be pulling about 395-400miles before it hits empty.

Krut: I have used sports mode twice? maybe for 30 seconds total? and I honestly dont think 5-10 mph is going to make a 10mpg difference between you and me.. I drive on nothing but flat lands too (Texas)

No, it's the diameter of the tire that matters, not the wheel. The OEM tires all have about 24" diameter whether they have 15-16-17 wheels. There is not much more than 1% difference between the largest and smallest stock tires. I doubt that the computer is fine-tuned for the specfic tire fitted to each car.

Thanks, I didn't know that. I thought different wheel sizes meant different tire sizes.

If all of the tires have a 24" diameter why do they not fill the wheel arch the same? The ones on the smaller wheels look smaller to me.

dean.

The majority of it are the visual effects, You have the same overall diameter whether you have 15, 16, 17 inch tires. If I am wrong please some
one correct me .!!!

[off topic]

The reason small wheels look smaller is because wheels are much brighter than tires, and grab your attention more. That is the reason white-wall tires were so popular "back in the day", because they made the impression the assembly was "visually bigger" to your eyes. The same effect is made with large diameter wheels with short sidewall tires; they have the same overall height, but the proportions are different, resulting in a differently "weighted" aesthetic.

[/off topic]