I really like my AccessPort! Never used any of the “canned” maps, but went straight to a dyno tune, by Jeff Perrin and at the Cobb Surgeline facility near Portland, OR. Results are posted on their website dyno page. That was in May, 2011.

The only other Mini Cooper AP Pro tuner I’ve been able to find, until recently, has been OxSpeed, somewhere on the east coast. After viewing another build thread, and giving advice on how to connect a Garrett turbo, they told me about another tuner. Located near Salt Lake City, they’re only a short days drive from me. Mini’s don’t appear to be their specialty, but they have the software, dyno, and talent. Here’s a link to their website —- http://www.ziptiedynowerks.com/

Their dyno, a Mustang built for 4-wheel drive cars, will give “odd” results for 2-wheel drive cars, unless the stability control feature is switched off. This is probably the reason for the low readings on their site’s single (as of this posting) Mini Cooper. My results, not yet posted, vary by about 10 WHP and 20ft/lbs, depending on which gear is used, 3rd or 4th (different loads). These 2 charts can be viewed on entry #28 of my journal thread --- https://www.northamericanmotoring.co...lta-stuff.html I’m told that the higher numbers were from 4th gear.

My Cobb tune is linear, and impressive. I asked these guys for a non-linear tune, which should produce better street results. They said that if needed, the tune can be “refined” remotely —- data logs and emails. I’ll be asking them more about that later.

Before getting to their facility, be sure to update your AP firmware. Mine wasn’t, and it took an hour or so to get it current —- an AP Pro requirement, before tuning can proceed. And, before you leave their facility, be sure you have everything you want —- it took a couple weeks for me to get both charts.