Just received my JB+ for the GP, curious what the safety margin is for using it on the track. I have a Forge intercooler and Akra downpipe on the car and run 93 octane. Obviously I'll be fine to run the car on the street so long as I don't turn the JB+ up much, but I'm a little more concerned about running it at the track due to sustained high boost/rpm intervals. I was hoping to avoid going to meth injection as I'm not sure I could mount a tank in the "trunk" of a GP in such a way that would allow me to pass tech at the track and frankly didn't really want to turn the boost up to the point where I'd need it anyway (that might change). I don't have super access to E85 right now, but I'm moving to Iowa in a couple months and will be able to get it whenever I want, so that's another option.

Thoughts?

 

I auto-x and took my MCS to the drag strip with the jb+ with nothing other than a Alta CAI and never had any issues

since you have a GP do you have it at 40%?

 

Just put it on today, it's probably more like 30-35% on the dial. I figured I'd start low, monitor timing / AFR, and dial it in as needed. I'll be the first to tell you more power is always better, but I'm probably going to need another 6-8 years out of this car and we all know they're not well built to begin with... Don't want to get hooked on higher boost and push it, you know?

 

well ibtack my MCS with manic stage 2+ I push 21.9 peak boost I run meth though but still a lot of boost lol

 

I'm taking mine to COTA on the 5th and bought some Torco to boost the octane up and will probably actually turn up the wick a little because of it. A friend of mine used to run it in his Vette which needed race gas and it was safe running the Torco which can turn 10 gallons of 93 octane to 105.

 

ya I've heard great things about the torco so you'll be fine

 

I run my regular Cooper S at 22-23psi on a bigger turbo. These things are strong, even the stock clutch has never slipped once. I'm sure the GP would handle it even better.
My tuner calls it not super aggressive. 261whp 271wtq. with meth