" If this was a coupe and minus the passenger, I can almost guarantee this would be an even race...or even a slight edge to the Porsche. We're talking at least 300 pounds less weight, probably a lot more.
And don't underestimate a 991 around a track...the GT3 is dead even with a 458 S around a track. With steel brakes. "
" I'll always help people as much as I can on the JB4 end. But I'm only one guy... and due to constraints on my time running the business and doing development it's not really possible for me to help everyone anymore. So I've trained Jon @ BMS & Russell @ BMS on common tuning problems and giving tuning advice where appropriate. If they get something really tricky then they kick it up to me.
In extreme cases I'll suggest people hire a local custom tuner if they are looking to do something unique and need more help than we can provide. The JB4 is just another tuning tool and like any tool you can apply it in different ways. It's a shame PTF has no interest in learning how to tune with a JB4 in the mix as its a very powerful and flexible tool especially now that it has timing monitoring on all six cylinders. But Wedge and some other tuners out there are available for those who need that special attention.
IMHO regardless of the tuner following a couple basic rules would save a lot of these strung out motors: 1) Don't disable misfire detection and 2) Always follow MBT practices. "
try discounttiredirect.com and id reccomend toyo r888s for a solid street race rubber..
I have heard mixed reviews about the R888 for track and rain. Plus I already have the r-s3 fronts that tirerack had a closeout on cause of V1 so I could not pass them up and this is for the 535xi mostly daily anyway. I will give that site a try. "