09-15-2013, 10:28 PM | #67 | |
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09-15-2013, 10:39 PM | #68 |
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That's what Terry recommended... I didn't really notice a difference... Found that odd, as the difference from 3-5PSI is huge, compared to stock-to-3PSI, it's nearly that again!
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09-15-2013, 11:02 PM | #69 | |
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09-16-2013, 12:25 PM | #70 |
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Best boost settings for 97 octane gas
Hey Guys, here in Chile I have 97 octane gas. Do you you think changing from +3 to +4 would do an important difference with this fuel? Do you think setting boost to +5 would be uselful with this fuel?
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11-01-2013, 07:41 PM | #71 | ||
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11-05-2013, 04:18 AM | #72 |
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Helo all
So i did dyno run this morning and here are the result I have 2013 320i with bms stage 2(map 5), everything else is stock few comments on dyno run and bout the machine, i dont know which model it was, he did tests in 4th gear with traction control fully off. I changed bms to map 0, and we did a stock run which was pretty simple, but when i changed to map 5 and we did a dyno run, is where the wierd stuff started to happen on dyno map, which came up with zig zag with 228hp, i was like wtf. The guy told me its probably because car needed more air, bigger fans, he said there is too much back pressure something like, also he said that the dyno they have was slowing the car down, because it has slowing down capabilities, basicaly its not fully free. i dont know much bout dynos, or what that means. Anyway we left the car for bout 10 min to cool off and did another 2 runs which showed curved not in zig zag any more... (Also he changed someting in dyno computer/machine which was 70% to 5% and he said that it would make car to run more freely) It was very wierd why it come up in zig zag, because when diriving on high way or goin full gas never felt a power loss, i did hope for better result, but i think it was way too hot in the their garage and their fans probably didint provide enough coolin or air to the car, the bonet was very very hot but the car temperature was normal I have no idea how Terry at bms with satge 2 come up with 266 horses at the wheels, i did hope for at least 250 hp.. oh well in my opinion car feels faster than 220 horse power, maybe its me or maybe i wrong well or maybe guy at dyno did something wrong anywway i want more horses Stock , map 0 BMS stage 2 map 5 The fans they used |
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11-05-2013, 05:44 AM | #73 |
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Quite disappointing results... That was supposed to be stage one dyno.
In the manual, it says that the tune has some safety features where the tune doesn't engage itself if the engine is not in the optimal working temperature (too cold or too hot). Could be the case judging from your description but dono. Would be interesting to see other independent dyno results |
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11-05-2013, 11:40 AM | #74 | |
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If I am reading your chart right you gained 34% power which is not that far off BMS' results especially if fans are not sufficient, octane is lower, etc. Mike |
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11-05-2013, 12:12 PM | #75 |
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Ty for clarifying Terry, anyway im very happy with the tune nevertheless dyno charts
hopefully soon ill install down pipe and squeeze some more power by they way forgot to mention in previous post, i use 95 unleaded something.. which i believe 91 octane in USA |
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11-05-2013, 12:46 PM | #76 | |
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I see ~34% difference between the power measured at the wheels (ruedas, in blue) and power of the engine in red (power at the wheels + pull [arrestre, in green]). They are correcting that value with a factor of 0%, meaning no losses in the transmission, i think. The difference i see between map 5 and map 0 is 163 kW vs 140 kW, or about a 16% gain. If this measurement were correct, that would translate to 209 hp on BMS stage 2 at the wheels. I dont want to imply that the stage 2 only gets a 16% gain, as there is a language barrier here, more that something seems fishy with this data. |
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11-05-2013, 01:01 PM | #77 | |
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he also said that this dyno is not primary goal to measure power, he said something to do with braking .. i cant remeber what it was |
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12-23-2013, 04:04 AM | #79 |
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I though i will let you guys know who is thinking of putting stage 2 on 320i, you really really need flex fuel, i ordered my stage 2 with flex fuel, but i only installed it like a week ago, i kinda couldn't find the fuel rail thingy..also wasn't sure about installation... Terry told me that stage 2 will work without flex fuel fine, but i saw people on n54tech forums posting and saying that flex fuel was important for whatever reasons i cant remember ...
anyway few emails to Terry, solved my installation issues, and the 1st difference i noticed is that hesitation car had before on 2nd gears.... is completely gone and acceleration a bit stronger now im sure car feels even faster than before , obviously some dyno would do justice, maybe ill do it in a month or so.. for now flex fuel made me very happy for difference it made |
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12-23-2013, 12:32 PM | #80 | |
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07-08-2014, 11:23 PM | #81 | |
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Should of ran it in in 6th gear if it was an auto, 6th gear is the closest to 1:1 (because its exactly 1:1) - the guy probably had no idea it was an 8at if it was an auto. Other dynos I have physically seen, including my own car, were right on target with Terry's numbers.... Hope this helps. Best, Mike
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12-13-2015, 12:25 PM | #82 |
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Anyone running e85 on a 320i JB4 on Map 5? I've got the latest JB4 version w/ Molex OBD2 connectors and EWG. I'm wondering if I would need to do 50/50 93/e85 mixture or if I can run straight e85 and see better performance.
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12-16-2015, 01:07 AM | #83 |
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I have a 2015 320i. I'm currently running JB4 Stage 2 Map 5. I'm using a 60/40 mixture of 91/E85. Compared to 100% 91, it's a night and day difference between power and throttle response. Current mods are: Injen intake, ER catless downpipes, and Borla catback exhaust. Still debating on making the jump to map 2. If I recall right, it's not recommended to go above a 40% E85 mix.
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12-16-2015, 08:53 AM | #84 |
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Just Ordered this system for my '14 320xi. Also going to get the Flex Fuel wiring, new injectors and fuel pump then push E85 through her. Looking to push around 300hp!
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12-21-2015, 09:36 PM | #85 | |
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06-09-2019, 09:21 AM | #86 |
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What's the safest map to use on a stock 320i? And what is the max HP/Torque gain to expect? I want to keep the rest of the car stock, so I'd like to know what's the safest map to run.
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06-09-2019, 09:34 AM | #87 | |
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Plus it only brings the total psi up to about 12psi which makes me believe that there will be minimal impact on the car's reliability. |
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06-16-2019, 09:08 AM | #88 | ||
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