Drivetrain Manic Motorsport brings us N18 owners OBD II Tuning! Solution is finally here!
#251
04-24-2014, 10:52 AM
#253
04-24-2014, 11:18 AM
#254
04-24-2014, 11:31 AM
"Most wheel dyno programs "scale" the horsepower and torque curves to fit them neatly on the same graph, and that is what's done to yours."
#255
04-24-2014, 11:52 AM
By definition:
HP = Torque x RPM / 5252
Therefore HP and torque are always equal at 5252 rpm. It seems that they are using two different correction factors, I wonder why?
EDIT: I re-watched the video, torque is in N-m at 397 - which is 292 ft-lbs. If you shift the graph down by the ft-lbs to N-m conversion it would line up correctly.
HP = 33000 ft-lbs per minute so for the two graphs to cross at 5252 torque would have to be reported in ft-lbs not N-m. The graphs are legit, probably reporting in N-m because it's not in the USA.
Also hp in the video is crank and not wheel.
HP = Torque x RPM / 5252
Therefore HP and torque are always equal at 5252 rpm. It seems that they are using two different correction factors, I wonder why?
EDIT: I re-watched the video, torque is in N-m at 397 - which is 292 ft-lbs. If you shift the graph down by the ft-lbs to N-m conversion it would line up correctly.
HP = 33000 ft-lbs per minute so for the two graphs to cross at 5252 torque would have to be reported in ft-lbs not N-m. The graphs are legit, probably reporting in N-m because it's not in the USA.
Also hp in the video is crank and not wheel.
Last edited by cerenkov; 04-24-2014 at 12:12 PM.
#256
04-24-2014, 12:17 PM
... could you imagine that? Thats like the days with my SRT-4. lolEdit - just saw the value of the Tq numbers. In NM.
#257
04-24-2014, 12:31 PM
By definition:
HP = Torque x RPM / 5252
Therefore HP and torque are always equal at 5252 rpm. It seems that they are using two different correction factors, I wonder why?
EDIT: I re-watched the video, torque is in N-m at 397 - which is 292 ft-lbs. If you shift the graph down by the ft-lbs to N-m conversion it would line up correctly.
HP = 33000 ft-lbs per minute so for the two graphs to cross at 5252 torque would have to be reported in ft-lbs not N-m. The graphs are legit, probably reporting in N-m because it's not in the USA.
Also hp in the video is crank and not wheel.
HP = Torque x RPM / 5252
Therefore HP and torque are always equal at 5252 rpm. It seems that they are using two different correction factors, I wonder why?
EDIT: I re-watched the video, torque is in N-m at 397 - which is 292 ft-lbs. If you shift the graph down by the ft-lbs to N-m conversion it would line up correctly.
HP = 33000 ft-lbs per minute so for the two graphs to cross at 5252 torque would have to be reported in ft-lbs not N-m. The graphs are legit, probably reporting in N-m because it's not in the USA.
Also hp in the video is crank and not wheel.
#258
04-24-2014, 04:53 PM
I have a 2014 Countryman Cooper non-S ALL4 which uses the low-output (122 hp officially) version of the N18B16A turbo engine that is not available in North America (production code XD71). I've been waiting for a solution such as this since I know that the engine is physically identical to the one used in the Cooper S and that it's just crippled in the software. I don't have much to add right now except to say that I'll be keeping tabs on this thread and I look forward to reading your comments on this OBDII tuning solution. I also hope that one day in the not-too-distant future I will have the opportunity to try this out on my car. By the way, I would be happy if I could bring my car up to stock Cooper S levels - anything beyond that would be gravy to me (but of course I'd take it!).
#259
04-24-2014, 04:58 PM
#260
04-24-2014, 05:06 PM
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thanks for the offer! funny enough, saturday is gonna be tougher for me than a weekday. i'm gonna check with johntotah to see if he minds me swinging by thu. if john says no, i might just show up anyways, haha! jk. i've been meaning to check out eurocode for some time now.
#261
04-24-2014, 05:44 PM
#262
04-24-2014, 05:47 PM
#263
04-24-2014, 05:50 PM
thanks for the offer! funny enough, saturday is gonna be tougher for me than a weekday. i'm gonna check with johntotah to see if he minds me swinging by thu. if john says no, i might just show up anyways, haha! jk. i've been meaning to check out eurocode for some time now.
#264
04-24-2014, 05:52 PM
I have a 2014 Countryman Cooper non-S ALL4 which uses the low-output (122 hp officially) version of the N18B16A turbo engine that is not available in North America (production code XD71). I've been waiting for a solution such as this since I know that the engine is physically identical to the one used in the Cooper S and that it's just crippled in the software. I don't have much to add right now except to say that I'll be keeping tabs on this thread and I look forward to reading your comments on this OBDII tuning solution. I also hope that one day in the not-too-distant future I will have the opportunity to try this out on my car. By the way, I would be happy if I could bring my car up to stock Cooper S levels - anything beyond that would be gravy to me (but of course I'd take it!).
#265
04-24-2014, 06:10 PM
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#266
04-24-2014, 06:14 PM
#267
04-24-2014, 10:39 PM
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#268
04-24-2014, 11:21 PM
#269
04-24-2014, 11:55 PM
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where will you be staying? if you happen to find yourself as far south as irvine, feel free to drop me a line. my schedule is pretty wide open next week, esp for food and the such. =)
#270
04-24-2014, 11:58 PM
Beyond excited for the tuning. Even if its not a big difference from the JB+, at least I am getting tuned for Meth and Race Fuel and switching with the SPS switch.
#271
04-25-2014, 12:00 AM
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cool! not sure how familiar you are with torrance, but there's a bunch of good japanese food to be had out that way.
#272
04-25-2014, 12:10 AM
Thanks! I will try to be in contact with you when I get down there. I am not familiar with Torrance at all.
FYI to the people getting tuned. The whole process is not speedy. They estimate that it will take a few hours. Possibly 4-5 hours. Damn N18 ECU. At least they cracked it but that's the price you pay for doing it all through OBD 2 port without removing the ECU. Make sure you have time on your hands. Just a heads up!
FYI to the people getting tuned. The whole process is not speedy. They estimate that it will take a few hours. Possibly 4-5 hours. Damn N18 ECU. At least they cracked it but that's the price you pay for doing it all through OBD 2 port without removing the ECU. Make sure you have time on your hands. Just a heads up!
#273
04-25-2014, 06:07 AM
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#275
04-25-2014, 06:59 AM
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That's pretty normal I think... This last weekend I got a stage 1 tune on my N14 JCW from JZW (great guy btw) and it took about 3 hrs to pull all the data and tune through my OBD port so the N18 being more encrypted that sounds about right. Hell for my buddy's GTi it took roughly three or 4 hours to bench tune his. I'm no programmer so maybe it can be quicker but that time frame seems about right.
N18 owners have been waiting so long to be able to flash through the OBD port, I think waiting a few hours won't be an issue haha
N18 owners have been waiting so long to be able to flash through the OBD port, I think waiting a few hours won't be an issue haha