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Cobb Accessport review
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01-26-2012, 10:44 AM | #1 |
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Cobb Accessport review
Hi folks!
I\'ve had a chance today to get out and about with the car, so thought I\'d give a \'day 1\' review. So yesterday I picked up my package: ...and this is what it looked like after I feverishly ripped off the postage info etc... On opening the box I was impressed straight away by the nice presentation of the - a lovely glossy metallic blue box! And a nice peepshow window! Inside, you get the accessport itself, a OBD cable (instructions mention an adaptor, none was needed or given), a USB updater cable, a QuickStart guide and a couple of Cobb stickers. It\'s mentioned in the guide that the accessport would be preloaded with whatever is the most up-to-date maps, so I took a gamble and elected to get flashing right away! (impatient git that I am!) So the cover was removed from the OBD port above the bonnet release, and then the little sliding port cover was slid out simply by gently pulling it straight out a little. I put the key in the ignition at this stage, plugged the OBD cable into the car, the accessport into the OBD cable, and cycled the power to on with a press of the starter. Accessport duly started up, pressed \'ok\' that my car matched it\'s description, found the option to flash the dme, selected my map (stage 1 aggressive, stock throttle) and after a few warning messages, the accessport read and stored my stock map. This bit took about 15 minutes, and once completed, the flash process began. This took about 20-25 minutes, and as warned, a few warning chimes and signs appeared throughout the process. Any dtc\'s were automatically cleared as the final part of the flash. On completion I was awarded with a little message saying operation successful (or something to that effect!). I cycled the power to off, unplugged the accessport and set it to the side. Now as you might have read in the other thread, this is were I hit my only snag so far. And I nearly dunged my pants. For as I placed my foot upon the clutch and pressed start, I was greeted not by the n54 blaring gloriously to life, but by all manner of chimes and warnings. For a moment or two I thought I had bricked my ecu, but reality dawned that I had drained the battery. My trusty father was on hand quickly though to jump start the car, and away I went. Unfortunately I had to pick the missus up and there was torrent rain all evening so I postponed any testing to today...... .... And so onto the day one conclusions! It\'s been a very cold day (2-4.5c) and a little damp, but it\'s dried up nicely this afternoon. I took my friend out who is owner of many bmws from e46 and e92 330ds and i\'s and 2 e46 m3\'s so he could give me some comparisons in that respect. First point - with the stage 1 aggressive stock throttle map, at cursing around town throttle openings it feels almost like standard. I say almost, because there is a tiny bit extra \'pick up\' there, but it\'s just a tiny bit. Drivability is great, no surging, all just as we are all used to! Next, when giving it the wellie! As a simple description, the stock power delivery is bumped up to the next level - still as smooth as ever, but it just hits harder and for longer. From 2200+rpm thats where you notice the swell of power building much more and quicker than usual, and the acceleration just keeps building. 2nd gear traction became compromised on greasy roads, not so much when it dried up later, but it was always something I had to consider when doling out the power. Higher gears became more potent - 4th has a real feeling of torquey shove now, rather than a linear build up of acceleration. 3rd gear also triggered the traction control in the damp occasionally, and hardly ever in the dry. In my friends impression, he enjoyed it plenty. He says in terms of a comparison, it is now definitely faster than a e46 m3 in straight-line pace. The quicker revving through a gear makes the car sound more aggressive. It might just be my imagination, but I thought that all the usual sounds I hear throughout the rev range have shifted down a few hundred rpm. So one day in, I\'m very happy - it is early days however and I just wanted to get my first impressions out there, and go from there. Glad I did stage one rather that go straight into stage 2, there\'s plenty of fun to be had at this level and it\'ll prolong the modding experience a little longer! This Saturday I\'ve ditched the other half so I\'ll do an update then, and get a more detailed description of any changes to the car\'s character etc! In the meantime, if you\'ve got a query, ask away! Last edited by Nigelo; 01-26-2012 at 10:52 AM.. |
01-26-2012, 11:37 AM | #2 | ||
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What kind of DME did the AP identify in your case? (as it was apparently supported already) Quote:
Not permanently I hope! Alpina_B3_Lux
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01-26-2012, 12:36 PM | #3 |
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Are you a web designer?
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01-26-2012, 12:39 PM | #4 |
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Glad to hear you are happy with it!
Sounds as straight forward as advertised for install. Looking forward to hearing your thoughts once you have been for a proper test. Has the rev limited been raised? I am looking forward to trying out the linear maps myself, as I fing myself never putting the pedal to the floor as it make no real difference on stick throttle. ie 80% trottle is near 100% power. Anyone know if there is a way to maintain battery charge during this process? Quick drive before hand may help? obviously turn off DRL but is a pain for me to go find jump cables in central london! |
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01-26-2012, 03:52 PM | #5 |
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Thank you for the reviews and pics!!!!!!
It looks very good!!!!... Did you drive with all the traction control aids on? so, definitely the car is faster,OK, but by how much would you say?...is it a "blow your fucking mind" fast or is it just a bit faster and more torquey? how much bhp do you reckon you've gained? |
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01-26-2012, 04:51 PM | #6 |
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Not a web designer, although I do tinker - those blasted slashes appear because of some issue with the iPhone app
I've heard of flashes needing to settle, and this seems to hold true for this also - it's a bit more alive at lower rpm now, more 'perky' and a bit more punchy from 3k onwards now. Lower gears are a bit 'Warp factor 9 Mr Sulu!" now, hold the wheel and get ready to work to keep her straight if the ground is damp. From 4th up it's more of the "am I really doing xyz speed, cos I was only doing abc speed just a moment ago, and I don't really want to go to jail" type - steady insistent acceleration of the aeroplane take off type. It is a definite and easily felt improvement - I would say going straight to stage 2 would be a bit daunting if you get the same step up again from stage 1 to 2. Worth it? Definitely! I hate untapped potential and this modification unleashes that! |
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01-26-2012, 05:01 PM | #8 |
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Good write up
Are these available for the N55?
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01-26-2012, 05:33 PM | #9 | |
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Good on you for pioneering something different. I always like to see that myself. Things will 'settle', this is the ECU automatically adapting to changes in several inputs.
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01-26-2012, 05:54 PM | #10 |
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In response to some of the other questions I missed:
I experimented with the trio of settings, all on, one dtc button press, and off. With full on, you can boot away to your hearts content, but you'll get a little wiggle and power being pulled back. In the other modes, you can easily get caught out in the wet if you just sink the boot in with 2nd or 3rd. That said, I found it easier though to play with the back end as i had the power on demand to break traction, rather than not having enough when stock and ending up just accelerating away. If you have a trickle charger I'd maybe have that plugged in while doing the flashing - I was lucky in some respects as I still had enough juice to complete the flash - I'd have been jiggered if it had died completely half way through!! :S I reckon if I went with BMW saying the car has 306bhp as stock, I'd say 360-370 would be a good guess. I'll be interested to see how much more torque the catless downpipes bring to the party later on! |
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01-27-2012, 02:40 AM | #11 |
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No, not yet. They've apparently started developing it, but it will be some time before it will be released. Summer this year would be my guess.
Alpina_B3_Lux
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01-27-2012, 06:24 AM | #15 |
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Good work Nigelo,
As said, nice to hear about something 'new' on the scene here. It seems too easy to be true - talk about 'plug and play' - you don't even have to open the bonnet! Perfect for the Playstation Generation! Last edited by doughboy; 01-27-2012 at 07:04 AM.. |
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01-27-2012, 12:36 PM | #16 |
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Thanks guys!
Just one more little update - my car was recognised as N54 (I8A0S), hopefully that means there'll be no 'unrecognised rom' messages for anyone else here! |
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03-08-2012, 09:39 AM | #17 |
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Had my uprated intercooler fitted on Saturday and by wonderful coincidence Cobb released beta maps for a stage 1+fmic so I've flashed them just there now. Mini update to come shortly!
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03-08-2012, 10:14 AM | #18 |
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Looking forward to it! It's said that the v400 maps are smoother/more linear in power delivery so it might feel totally different or dare I say it, slower because you don't get the kick in the back.
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03-08-2012, 11:26 AM | #19 |
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It is most definitely smoother, but I reckon the fmic has allowed them to bump the power up so that you still get a kick.
Leaving work soon, so I'll be taking the long way home! |
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03-08-2012, 12:35 PM | #21 |
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Yeah, definitely definitely not slower
The power comes in hard, stays on right the way round to 6000rpm before any noticeable drop. But the best thing is that the power doesn't come in as apparent 'stages' now - it's much easier to plant your foot and know what's coming throughout the rev range. (this is stage 1+fmic aggressive stock throttle v4.00, coming from stage 1 aggressive stock throttle v3.02737373blablabla) Flip, what's stage 2+fmic aggressive going to be like!!! |
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03-08-2012, 02:30 PM | #22 |
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Sounds great! From what I've read the normal Stage 1 feels tame but eliminates those 'power stages' in the rev range so to be honest it's probably quicker. I've copied the v301 maps to my PC so if I don't like v400 I'll go back but this +FMIC map sounds lovely!
Which FMIC are you using? I'm torn between ETS and Forge. |
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