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BMW 3-Series (E90 E92) Forum
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What the heck, Shiv & Terry fix bog at same time whos is better
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09-17-2009, 10:23 AM | #90 | |||
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I know you're trying to do some open loop vs closed loop argument, but your closed loop parameterization needs to be correct to critically damp. These parameters can also be thrown off with new BMW software. You guys both need to keep up with DME changes, Terry just needs to be more watchful of his models. Quote:
Compare the best of each tune's best (i.e. 11 sec runs). -scheherazade |
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09-17-2009, 10:43 AM | #91 | |
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it keeps me interested in these threads and keeping up to date with the tuning and drama aspects of the n54 world. continue...
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09-23-2009, 12:43 PM | #92 | |
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[SIZE="5"]
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I bought my jb3 a few weeks ago and have been beta testing the latest maps. To me, this is the biggest issue in MT cars and my only gripe with jb3. It seems like it's working on the latest map but I'm not fully convinced. I bought the jb3 instead of procede bc of price only bc I felt they both gave the same performance after seeing hundreds of comparisons. However, if this shift fix works better in one than the other that would definately change my mind bc it is no fun to race and shift hard with this shft lag. Shiv, I am oft the group you described where I not loyal to one or the other, I just go for performance vs price. Can you help me out and send me the procede to compare the 2 and I'll post my results with datalogging here. |
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09-23-2009, 01:07 PM | #93 | |
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09-23-2009, 01:32 PM | #94 | |
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Mike |
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09-23-2009, 01:39 PM | #95 | |
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09-23-2009, 02:00 PM | #96 |
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09-24-2009, 01:25 AM | #97 |
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I don't know what year build your car is but mine was from late 2007 and JB3 Rev 8.3 bogfix is very pleasing. It is smooth. It doesn't bog of course and it doesn't surge. It doesn't scare you when you quick shift into 3 or 4.
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09-24-2009, 10:49 AM | #98 | |
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Given your statement above, in the bolded part, how is it necessarily true that a shift is taking place? If you are 100% throttle, then wouldn't simply lifting off to slow down (not shift) also mean a "rate of change in RPM AND the gas pedal value dropping"? What is stopping the JB3 from saying "oh, the car is shifting, I'd better maintain boost" when the driver is simply lifting off of the throttle to slow down. I must be missing something. I would think it would be quite detrimental to have the car keep boosting after the driver gets off the gas, when he just wants to slow down. Thanks |
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09-24-2009, 11:07 AM | #99 | |
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09-24-2009, 11:59 AM | #100 | |
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Thanks for clarifying. |
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09-24-2009, 12:43 PM | #101 |
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I have to agree with Shiv in that it seems like this is being made overly complex for no reason. Gosh, if you have to, both Shiv and Terry bring your cars in for service and get 2 335i 6MT loaners and test!
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09-24-2009, 02:24 PM | #102 |
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bms and proceed fighting it out again and again...
IMHO: bottom line is that unless one tune consistently beats out the other tune doing pulls (same car, mods, octane, etc) then obviously both tunes are doing their jobs very well - but in different ways. please no one state that one of the tunes is safer than another... after many, many miles, there is no evidence of this, and i have not heard or seen any blown motors or turbos since some guy sucked up packing materials into his intake - and that was like 9 months ago ?? i welcome no flames and will just ignore them... i think my bottom line stated above has a very high degree of truth to it. my 2 cents
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RPI IC / UR catless DPs / JB3 2.0 beta / UR CAI / Quaife LSD / Snow Methanol Injection / VK oil cooler upgrade / Forge DVs / M3 rear sway / Riss catch can / Paddle shifting 6AT / M Sport steering wheel / Logic 7 / Dunlop Direzza Z1 255/235 / |
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09-24-2009, 08:16 PM | #103 | |
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09-24-2009, 08:24 PM | #104 | |
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joking
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If your car isn't scary - it's just not fast enough !
RPI IC / UR catless DPs / JB3 2.0 beta / UR CAI / Quaife LSD / Snow Methanol Injection / VK oil cooler upgrade / Forge DVs / M3 rear sway / Riss catch can / Paddle shifting 6AT / M Sport steering wheel / Logic 7 / Dunlop Direzza Z1 255/235 / |
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09-26-2009, 09:13 PM | #105 |
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I have been looking for someone with a Procede so I can test it out and see the difference but no luck so far. PM if anyone wants to check out the JB3 in action and we can compare to the Procede.
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