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09-22-2011, 06:02 PM | #23 |
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Nah haven't had a chance, I did send them an email though. No response yet.
IDK for the price with install I think I might opt for the Performance exhaust instead.
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09-22-2011, 06:15 PM | #24 |
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My understanding is that while exhaust mods (opening up the flow) can give you more power at the high rev end, it does nothing or even worsen the low end torque (some restriction is needed to generate torque at low revs).
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09-22-2011, 06:17 PM | #26 |
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09-22-2011, 09:08 PM | #27 |
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09-22-2011, 09:20 PM | #28 | |
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Have you driven an N54? I've not driven an N55, so I don't can't compare them. Given that the N55 doesn't have a throttle plate to suck air past, I would think that it already has better throttle response than an N54. Please comment on your experience between the two, if you've driven the N54. It's great if throttle response has improved. I do want to hear from N54 owners though, as my N54's throttle response went from OK to "what the FK?", after last years software update. There have been a number of us N54 drivers who don't like what that software did to throttle "response". I'm not talking about turbo lag, as these engines (N54) do have some lag, but not much. I'm talking about throttle response, how the engine responds to subtle changes in throttle application when the engine is at mid rpm, and the turbo's are spooled, say around 4000rpm. If this software fixes that that's a positive. But, I don't want to have to shell out $700 to fix something that shouldn't be happening in the first place. If I decide to keep my 135i after next year I might do it, more for the throttle fix than the modest 17lb ft. |
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09-22-2011, 09:51 PM | #29 |
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Finally available on BMW performance parts website... all with the current reduced pricing.
http://www.shopbmwusa.com/ProductLis...=241&perf=true
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09-22-2011, 11:57 PM | #30 |
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I am interested in the fix for throttle/ turbo lag issue. When I went to the CCC here in Seattle I got to do things that would be a "ticket" any where else. One of the drills was to acclerate (floor it) and then stop with in a certain spot. DCT btw. When I floored my car there was a delay of a second or two, which to me was disappointing. I wonder if Version 1 might help this ??
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09-23-2011, 03:50 AM | #31 | |
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I want that over a product made in a garage. I also would like my dealer to fix problems when they arise instead of asking fellow 18-24 year olds on a forum and banging my head to the wall. If you have a procede, it is 100% not aimed at you, honestly.
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09-23-2011, 10:02 AM | #32 | |
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Power Kit V1 look to actually provide real improvements especially to those of us that have had BMW's SW update for the fuel pumps that appears to have dulled the car some and plan to keep that car for an extended period of time. Yes there are more powerful tunes and that point has been made. However none are factory backed. As previous people have stated it's a hassle free bump in power/response with piece of mind.
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09-23-2011, 10:44 AM | #33 | |
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09-23-2011, 11:09 AM | #34 | |
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This is what I expected, based on dynos of stock vehicles and one dyno I found for the 335is.
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09-23-2011, 12:57 PM | #35 | ||
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Secondly, while I agree that you could lose some added functionality from a BMW reflash that helps out a specific component(s) (i.e. fuel pump is a big one), those non OEM tunes are constantly updating as well. I'm definitely not saying they're going to be as effective as a BMW tune, but just pointing out they're not stagnant. Also, some of those tunes are easily reapplied anyway. Cobb has a handheld tuner that you can do from your house and Dinan customers have been known to get free reflashes if their software gets overwritten, but I think that policy varies by location. I've heard some say Dinan always has done it for them for free and others say they get charged ~$50 to put back the software they already bought (pretty crappy IMO). I prefer the BMW route which is why I got the PPK, but just thought I'd elaborate on the aftermarket tunes a little. Quote:
If BMW thought the hardware was a requirement for the V1 tune they wouldn't sell them separately.
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09-23-2011, 01:02 PM | #36 | |
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With the "Version 2" PPK my running temps have consiistently dropped by about the same amount under normal driving conditions. If I drive aggressively, the temp will go higher of course, I'm just talkin averge oil temp.
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09-23-2011, 01:16 PM | #37 | |
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09-23-2011, 02:53 PM | #38 | |
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09-23-2011, 03:08 PM | #39 | ||
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Two engines sucking in the exact same amount of air. One changes ignition point based on rpm (essentially VANOS), and the other doesn't. One generates more HP than the other. There's so many little tweaks a modern engine can make... to call it simply an air pump is naive. Quote:
Last edited by MPBK; 09-24-2011 at 03:23 PM.. |
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09-23-2011, 03:39 PM | #40 |
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Did you over look this part?
(forced induction engines are not as susceptible to this side effect).
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09-23-2011, 03:43 PM | #41 | |
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My original point stands: free flow exhausts have negative effect on low end torque. Most people don't redline their engines. Even if they do, it's a fraction of a second. Most of the time, low end torque is more important, especially for city driving. |
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09-23-2011, 03:43 PM | #42 | |
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Was about to say the same...Granted it IS wikipedia, but still...
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09-23-2011, 04:15 PM | #43 | |
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09-23-2011, 05:47 PM | #44 | |
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Bear in mind that part of BMW's marketing strategy with this SW only kit is to retain would be buyers of 1M's that can't get their hands on a car. Easier to sell them on a moderately priced, upfitted 135i in theory. |
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