R56 N18 250hp ????
Read up on maf-based tuning. All the DME tables are designed for performance specs of a stock vehicle. Period. Reducing intake and exhaust resistance makes a HUGE dent in the dmes compensation(timing as well as fueling) which isn't something that is constantly healthy. Ideally LTFT should be within 10% for the car to be running optimal, some people with the jb are bordering 20%, some are getting codes from it. Been there done that and learned some valuable lessons through my years of open source engine management tuning. Thankfully the jb is adjustable, the stock setup on the mini will still run the jb safely but not with engine mods.
Not sure what's causing the P0171 codes. It would be nice to see if there is any commonality with respect to mods for people that get the code.
and doesn't offer much in HP/torque compared to real tunes...
JB+ offers +20HP +30FTLB on a stock car......those are the same numbers youd get from any basic stage 1 tune......
there are guys running Water/meth putting down 230HP with the JB+.......
find me another "real tune" that can deliver that for $300 and ill be impressed.
also...."real tunes" are pretty difficult to do on the N18s..... in case you didnt know.......
ummmm...where are you getting youre numbers pal.... JB+ offers +20HP +30FTLB on a stock car......those are the same numbers youd get from any basic stage 1 tune...... there are guys running Water/meth putting down 230HP with the JB+....... find me another "real tune" that can deliver that for $300 and ill be impressed. also...."real tunes" are pretty difficult to do on the N18s..... in case you didnt know.......
Piggyback is great for stock cars IMO, but an ECU tune is healthier for your MINI knowing that you get consistent AFR and advanced timing. Again, everything could be argued, but we still have yet to see a MCS with the JB on a dyno to prove those numbers(not from BMS, but forum members).
also, i dont know where the myth of inconsistent AFRs came from.......ive been monitoring my AFRs on my car and ive seen nothing abnormal.....nor have i heard any reports of anyone having issue with their AFRs with a JB+......
check the JB+ thread....several members have dynod their cars and posted results.....or if you want to wait a few months, im dynoing my car running the JB+ with torco and ill be more than happy to post my results.... also, i dont know where the myth of inconsistent AFRs came from.......ive been monitoring my AFRs on my car and ive seen nothing abnormal.....nor have i heard any reports of anyone having issue with their AFRs with a JB+......
There's a RennTech one on here by Dikk(stock) or whatever his name is. Go look. And there's also a dyno by manic from John(not stock). So there's goes two different tunes.
Last edited by RobMuntean; Jun 12, 2014 at 09:46 PM.
Not cheap if my mechanic that has a mini r53 with 300hp that he made it turbo and he told me buy the Jb (+) because i have costumers with the reentech and personally for the price and what i felt when i a drove a r56 n18 with a jb and one with reentech he prefers and i felt more power with the jb(+) i think for people with warranty is the best option too,that was the advice i was given
Word... Quality over cheap.
also, those of us who minis are daily drivers really cant afford wait several days while we to pull our ecu and ship them off to be tunned....
for gods sake, the car community needs to lose the attitude that if someone mods thier car differently than you do, that it must automatically suck.......goodness, every day i see the Mini scene becoming more and more like the honda scene...if its not JDM with hella-flush fittment, your car is a POS wanna-be....
cost =/= quality. also, those of us who minis are daily drivers really cant afford wait several days while we to pull our ecu and ship them off to be tunned.... for gods sake, the car community needs to lose the attitude that if someone mods thier car differently than you do, that it must automatically suck.......goodness, every day i see the Mini scene becoming more and more like the honda scene...if its not JDM with hella-flush fittment, your car is a POS wanna-be....
I'll send you the link through private message. Mind you he only had a K&N panel filter with the tune so he achieved 21whp and 51wtq, on an automatic. So imagine with other bolt on's. But I agree if you don't want to buy other mods and are content with the achievable power, more power to you to save money.
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