Greg...nope I want to see the real dyno sheet. Corrected and non-corrected. You just can't add stuff together from a "tuner" catalog. The picture is fake and your math is ill conceived. Over the years I've become so tired of people making stuff up. By the way where are you and the altitude there?
What picture is fake? I screen shot mpg calculators off the internet to show conversions compared to what my dash has shown the last 10 years on 3 different Minis that show over 50 Imperial MPG when traveling to skiing at 60 plus MPH. That’s with snow tires traveling on rough roads so easy to hit 50 US MPG if traveling 55 MPH. I even got a government rebate on my first 2008 Mini as it’s highway mileage was above 50 US MPG. I get better mileage now with my tuned 2018 JCW than I
got with my old NA 2008 Mini Cooper that had 118hp and better than stock of course because of the tune. My previous 2010 Cooper S improved noticeably too with fuel efficiency after it’s tune as expected.
I’ve been in the Auto Business for 31 years detailing in a London, Ontario, Canada and have worked with RSP Motorsports for 15 years doing about a car every week or two there for them. They have a 4 wheel Awd dyno/rolling road that’s one of the best in North American and they tune vehicles almost daily. They are for engine not wheel hp so they are higher numbers than mustang dynos. They have used BR Performance files on vehicles for years and then fine tune those files on the dyno after. Every one has been within 5-10hp of BR Performance and the listing on BR are always conservative so people don’t feel “short changed”.
I didn’t get a printed off dyno as I got a “staff deal” on the tune that was a 6 hour job to remove the Ecu and take it apart etc. if mine was like my old old and could be tuned by OBD port, I’d spring for the dyno. It loses traction in 4th and 5th now so I know I’m good. Lol
Here’s a listing on my buddies GTI with a BR Performance tune and similar results to BR’s site. 2 other GTI done at RSP within 10hp of this.(others were higher). Notice the under reporting of power you get with most VW/BMW/Mini as it should be 220bhp/258tq from the factory. Still gains lots over that with a BR tune.
Stage 1 tunes on Mini/GTI are usually a boost of about 4psi and they are about 10 companies of Ecu tunes or Piggy backs that are all in the same power range. 40-60 hp increases and 60 plus tq increases.
Here’s a thread of various Mini dynos of my vintage. All around 260hp plus wheel hp/280 plus bhp and 280 Tq plus at the wheels on a cooper S with stage one tune/piggyback. Add 10-20hp for a JCW with its improved inter cooler, lower compression and improved airflow.
YouTube has at least 50 videos showing the same results.
https://www.northamericanmotoring.c...er-s/312462-official-3rd-gen-dyno-thread.html