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01-12-2014, 06:02 PM | #155 | |
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Evolve should be able to remove the cel by tuning it down, but not off, even if their n51 tune isn't yet tested or annoucned
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128i Sport 6MT converted to Euro 130i spec, 3.73 diff, tuned by evolve ~220 whp 207 wtq(ft-lb) SAE
In-progress: //M front arm, M3 rack, e36M lip Wishlist: Coils, n55 mnts, headers, LSD, e60 finn diff "The 1-series is the last car that BMW engineered before the Germans, as a car-making culture, fell out of love with driving." - R&T 2013 135is |
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01-12-2014, 06:33 PM | #156 |
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Precisely. Their ability to turn down O2 sensors is separate from N51 tuning, and all 128i have secondary cats.
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01-13-2014, 11:42 AM | #157 |
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Thanks andrey_gta and TheSt|G. I'm thinking I might just get the performance exhaust first since it's cheaper and it's something I want on my car eventually anyway. These super sprint headers are expensive but I don't want to skimp out on the quality of components on my car so I guess I'll have to start saving up.
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01-13-2014, 01:10 PM | #158 | |
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01-13-2014, 03:08 PM | #159 |
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I wouldn't bother with the PE. the SS headers and the stock exhaust system will give you an excellent exhaust note and a reasonable volume without any drone, plus the performance benefits. Believe me, i went through the PE and two other axle backs before i went to headers and now i wish i just did headers in the first place without touching the rest of the exhaust.
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01-13-2014, 03:20 PM | #160 | |
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01-13-2014, 05:00 PM | #161 |
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Header's definitely give the n52 an even more beautiful exhaust note, it's one of my favorite aspects about the n52. With my resonator delete i have a really raspy note that sounds like the e36's. I have plans of welding my stock resonator back in place, then putting the 135i muffler with the flap open.
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01-13-2014, 07:03 PM | #164 | |
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It seems like if I wait until Evolve gets out a real performance tune for an N51 engine, I'll be able to justify paying to get the Evolve tune for both performance benefits in addition to removing the CEL. Or am I missing something here? Is the performance benefits of just the headers so good that it's worth spending money for both the headers + the tune required even if the tune doesn't give any performance benefits? |
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01-13-2014, 07:15 PM | #165 |
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The tune does give performance benefits, i'm not sure where you're getting that it isn't. It gives substantial improvement over the dips from the DISA valves switching over as well as improving mid range power and low end torque.
however, i'll let stig's dyno's settle this since i'm basing this off of my findings of euro 125i and 130i's.
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01-13-2014, 07:17 PM | #166 | |
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Talking about this thread: http://www.1addicts.com/forums/showthread.php?t=927489 |
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01-13-2014, 08:22 PM | #167 |
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Ah yes i completely forgot you were talking about n51, my apologies! However, i would think that if evolve updated their n51 tune they would allow you to get the updated version, AA provided me with multiple stages of their tune so i could upgrade as i installed the parts.
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01-14-2014, 06:21 AM | #169 |
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01-14-2014, 10:40 AM | #170 |
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01-14-2014, 10:59 AM | #171 | |
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I've seen Evolve tune first hand on a number of varied contemporary platforms to the N52. It would be the exception if they were not delivering at a similar level, and from first hand ownership, I see no reason to think that it is an exception.
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01-14-2014, 11:53 AM | #172 | |
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AA's tune for the M54 lost power vs a Shark Injector, but AA's tunes on the N52 have been spot on. OE's tunes on the E55/C63 cars is shown to be the most comprehensive tunes, beating out Evolve, but according to one dyno here, they lost out to AA's tune because of an issue with pinging. I'll believe it when I see it, but until then I avoid making definitive statements. |
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01-14-2014, 12:08 PM | #173 |
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Agreed. Anyone that thinks a tune has more than a +/-1-2% variance compared to another tune is naive to the procedures aftermarket companies use to develop their products. There just are not enough variables to play with on our naturally aspirated, relatively small displacement, highly tuned motors to extract 10hp more than any other tuner. Anyone who has tuned a sportbike and been promised huge gains compared to another product figures this out quickly.
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01-14-2014, 12:34 PM | #174 | |
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The difference was that while some were tweaking values for their tunes, Evolve was fundamentally rewriting the code behind the tune. They aren't the only ones who are capable of this(Polar comes to mind), but it is an approach very few take or are capable of taking. And the end of the day though, this is all just words to you and you want to see a dyno. It's not a problem and I understand. Soon enough.
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01-15-2014, 12:55 AM | #175 |
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That seems to be arguing over the definition of the word 'tune' rather than my point. Seeing that evolve and AA now both rewrite the code in the ecu to play with the same variables, the product difference is all but imperceptible, even on a dyno. Comparing that to a piggyback ecu helper like the bms box is irrelevant. This idea that one specific tune is better than others is the only reason borderline scammers like the bms people are able to make a profit off the naive.
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01-15-2014, 07:42 AM | #176 |
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A large reason to choose evolve over AA is the fact that you can pass obd2 emissions testing with evolve and not with AA(theoretically). I'm happy with my AA tune besides that fact, and it doesn't really affect me much.
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