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07-12-2012, 08:43 PM | #67 | |
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It's just a 125i has never been DYNO PROVEN to make 130i power. I don't think your 130i will get anything out of this.
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07-12-2012, 09:36 PM | #68 |
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I think stu dyno'd a 130i at advan a while back and it made 142rwkw. My 125i made 140rwkw last year on the same machine.
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07-12-2012, 10:02 PM | #69 |
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Shame that there isn't a before/after dyno to compare, but that seems pretty close. 142rwkw for a 130i seems pretty damn low though since stock 135i's all get around 190rwkw, and it's only supposed to be 30kw more at the fly.
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07-13-2012, 02:21 AM | #71 |
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What did your 130 make on the dyno?
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.-=[ Kenny ]=-. 1999 BMW M Coupe 10.775 @ 134.35 mph w/1.600 60' (Best 136.07 mph) 25th August 2004. +2010 X5 35D+
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07-13-2012, 03:03 AM | #72 | |
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But with the 125's and 128's making 140-150wkw, the 130i making 140kwatw means it's not 265hp ? Quick google found at least one making 166wkw (130i), which is still pretty low ED: and yes i know you were being sarcastic, i don't understand why you have that attitude? :/ |
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07-13-2012, 03:06 AM | #73 | ||
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The dyno graph in the op says 125i and 171kw lol According to this, it should be (a 130i) around 208kw, up from 195, which would mean like .. 8-9 at the wheels realistically? Ed: my mistake, ~204kw, the graph reads a bit wrong.. The site does list (from memory) 13kw for the 130i 195kw expected I'm not saying i want to do this btw, i'm not even slightly a fan of canned tunes. |
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07-13-2012, 03:34 AM | #74 | |
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Here is a dyno graph of a 125i with only an ecu tune. Its from Marcel from MS Tuning.de
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07-13-2012, 04:26 AM | #76 | |
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Also take into account weight, I took my 130 over the scales (with me in it) for a raceweight of 3402 lbs (verified accurate on WSID racescales). If you can take your 125 over the scales when you do scrutineering (lane 1) and take a photo. Just ask the ANDRA official to turn the scales on. My passes in the 130 My wife's passes in the 130 on an even hotter day
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.-=[ Kenny ]=-. 1999 BMW M Coupe 10.775 @ 134.35 mph w/1.600 60' (Best 136.07 mph) 25th August 2004. +2010 X5 35D+
Check out the 1Addicts Drag Racing Standings and Drag Racing 101. Last edited by MrBlonde; 07-13-2012 at 04:50 AM.. |
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07-13-2012, 04:43 AM | #77 | ||
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For n52b30 i mean, not the n52 sulev which is still also 230hp Ps is slightly over hp from every spec sheet i've ver seen? |
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07-13-2012, 05:46 AM | #78 | |
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Ok, will try and get weighed as well.
Would be good if another n52 could come along. Quote:
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07-13-2012, 11:15 PM | #79 | |
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07-14-2012, 06:17 AM | #80 | ||
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07-14-2012, 06:20 AM | #81 |
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But anyone can post something on the internet, and comparing one dyno sheet to another is almost pointless, especially once you factor in the "happy" USA dynos.
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.-=[ Kenny ]=-. 1999 BMW M Coupe 10.775 @ 134.35 mph w/1.600 60' (Best 136.07 mph) 25th August 2004. +2010 X5 35D+
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07-14-2012, 06:17 PM | #82 | |
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The few conversions i've read show before and afters with gains - is that not reallythe only proof of success you need? By your logic, unless you see it in person, it's not valid? I take it you've never come to the internet seeking information then? :/ |
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07-14-2012, 07:12 PM | #83 | |
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You're a bit of a hard learner. You have to look for objective information on the internet. A lot of "information" is actually just marketing. It's not a matter of seeing it in person when it comes to dyno sheets. The big black dyno never lies, which is why the trap speed from a drag strip pass with a known raceweight tells us far more than any dyno sheet can. Step back and think a bit about what you read.
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07-14-2012, 07:23 PM | #84 | ||
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But even the same driver in all identical conditions can have a huge variation in times, several tenths? I know that track/strip times+data are the best ideal real world proof of gains, but there can be almost as much variance as between dynos? I don't even entirely understand how a dyno can read incorrectly/differently? Wheels spin, dyno spins, reads how much power is coming from the wheels via how fast they spin versus the load on the dyno itself? I'm genuinely honestly wanting to know how that can be so totally screwed up? Are any of the three what is realistically being put to the ground? So confusing. I'm very suspiscious not only of things i read on the internet, but things i hear in person. |
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07-14-2012, 07:39 PM | #85 | |
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Google on how a dyno machine can read differently and how they can so easily be rigged. It's actually very difficult to get a dyno machine to read consistently from day to day.
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.-=[ Kenny ]=-. 1999 BMW M Coupe 10.775 @ 134.35 mph w/1.600 60' (Best 136.07 mph) 25th August 2004. +2010 X5 35D+
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07-14-2012, 08:00 PM | #86 |
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Ah so theres two different dyno types, as well as dodgy software settings? Makes a bit more sense then
Would how you launch the car still have an effect on speeds though? Or does it just have a significantly lower variance to ET's? |
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07-14-2012, 08:32 PM | #87 |
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Flinchy, that's why I went on about the claim of ~50kws elsewhere, as i said the delta on dynos is very relevant. Same operator, same day, before and after mod is the best way to do it. If dyno type a reads low compared to dyno b or visa versa who cares, deltas highlight the improvement relative to the before configuration.
Then in saying that all things must be equal, or as close as possible or it means sh1t, I mean with a 1M, was the M button pressed and did the car react the same? I mean I would be shattered if, with an end to end Akra AND a tune, it only offered 20kws atw as you suggest. |
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07-18-2012, 06:39 AM | #88 |
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Weight with driver: 1537kg
Run 1 - ET 14.616 @ 96.01mph 60' 2.244 Run 2 - ET 14.695 @ 96.02mph 60' 2.269 Run 3 - ET 15.129 @ 95.34mph 60' 2.548 Run 4 - ET 14.788 @ 96.40mph 60' 2.372 |
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