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Cobb AP not what I expected.....Comments?
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03-19-2011, 12:23 PM | #23 | |
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if they agree to send you another one and the problem persists, you "may" look at getting PROTuned because that may be the only way to get away from that annoyance. like i said, i have yet to hear of anybody having this problem - i did, but it's because the tuner put it there. |
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03-19-2011, 12:24 PM | #24 |
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p.s.
i do not have a Cobb AP on my 335 - my Cobb experiences are from the STi i used to have. and 14 psi at 1/3 throttle in an AWD car is insanely annoying. |
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03-19-2011, 12:27 PM | #25 | |
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03-19-2011, 12:38 PM | #26 |
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I've just been trying to establish if this is normal behaviour for the Cobb AP out of the box, or if I am having abnormal results.
My expectations based on my research was a power curve similar to stock with boost coming on earlier and peaking higher. My mistake was not looking at power curves in relation to throttle positioning. This is by no means intended to point fingers at Cobb or to criticize. As I mentioned in my initial post the Cobb AP is a nice piece of equipment and the stock maps provided by Cobb could not possibly appeal to every end user. I was just surprised that none of the other members had mentioned this "front end loaded throttle" in any of the reviews. Does anyone know of a tuner near Toronto Canada? |
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03-19-2011, 12:46 PM | #27 |
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i doubt there's a Cobb facility near Toronto to PROTune your car, BUT, there should be licensed Cobb PROTuners in your ar4ea.
PM someone at Cobb and ask them. what mods do you have ?? if you are running dp's and FMIC then getting a PROTune would be extremely beneficial. getting PROTuned with just a intake to tune out the boost sensitivity would be a shame...... |
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03-19-2011, 01:45 PM | #28 |
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I agree with the responses to try the 2.0 maps. At least before you plunk out the dough. I happen to like the improved response. Similar to the "lagfix" maps on other platforms.
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03-19-2011, 01:52 PM | #29 | |
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Harry |
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03-19-2011, 02:12 PM | #31 | |
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03-19-2011, 03:16 PM | #32 | ||
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READ what I said.. Quote:
Mike |
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03-19-2011, 03:34 PM | #33 | |
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http://www.e90post.com/forums/showthread.php?t=495341 Though I never got an answer back from Cobb, even after emailing twice (nice, I just spent $900 and you cant reply to my emails?), I've just reverted back to 2.00 map. There's definitely an unpleasant difference in the 2.01 map, I think it may be a mistake as Cobb has advertised the 2.01 maps as only fixing AT issues. To summarize: use 2.00 map if it bothers you. |
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03-19-2011, 04:48 PM | #34 |
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I did not mention any tunes. Mentioning tunes LIKE U DO is the def of a tuners war.
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03-19-2011, 04:56 PM | #35 |
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I guess that you can spin it that you get a free Sprint Booster with every AP.
Some manufacturers dial up throttle response in their cars so that upon first test drive, people get a false positive impression of a fast car. Maybe that's what COBB is aiming for here? Throttle response is an important part of a butt dyno equation. I hope that this gets sorted out with the upcoming Stage I updates and Stage II release. It took me a couple of days to adjust to my car's already sensitive braking and CDV. I'm sure it would take me the same amount of time to readjust to COBB if no changes are made. |
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03-19-2011, 07:28 PM | #37 |
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I doubt half throttle is full boost.
Datalog different throttle positions?
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03-19-2011, 10:24 PM | #38 |
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I would have to say the very first Cobb maps felt more linear compare to the v201 revision imo. I think the monster low end grunt with the cobb tune could exaggerate the over sensitive throttle feeling.
Either way I still love my Cobb tune! Alan
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03-19-2011, 11:35 PM | #39 | |
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going part throttle (around 20-30%, the boost spikes up to @ 12-14psi with no control. if i'm going 20-30% throttle, i don't wanna see more than 4 or 5 psi - that's enough to pick up considerable amount of speed at any RPM. |
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03-19-2011, 11:39 PM | #40 | |
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03-19-2011, 11:40 PM | #41 |
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I have a AT and only used the new maps so i have no frame of reference. I can understand why it would be an issue on a 6 sp but in the end it can be all tuned out so i see no reason to change the tuning tool aka Cobb.
Cobb tuning for this car is still in its infancy, more tunes with better refinement will be out soon. Its fun making incremental changes. Hold on and good things will come your way Harry Last edited by ZTUNER; 03-19-2011 at 11:59 PM.. |
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03-20-2011, 03:00 PM | #42 |
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Here is a log i did on my car - try the same on yours to see what you get. I was in DS mode 5th gear. as you can see under 2 psi boost rolling into throttle keeping tps at or around 20 % . This is almost exactly what you get stock. This is on a AT so your results might differ but what you see here is what you need to log FYI
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03-20-2011, 03:39 PM | #43 |
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To the OP, I actually understand what you are talking about.
I'm the same as you because I have to drive my family around. Some people around here think that more power outweighs drivability but I'm not one of those. There's nothing more frustrating than getting on the throttle just a little bit and having the throttle blade go 80% WOT. Hopefully it will get better with time. If not then look for something else.
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03-20-2011, 03:51 PM | #44 |
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i see this intermittently on mine. not sure if it has to do with whether the car is fully warmed up or not I have yet to really pinpoint when and where it happens on my car. I know exactly what you're talking about though. i spent the last 3 weeks with the cobb driving by myself or taking friends for a quick ride and had this happen maybe once. I had family in town this weekend and had a hard time on 20-30% throttle. It was funny for a little while watching their heads throw forward between shifts but it got old after I was really trying to drive smooth. At 10-20% throttle the car feels stock at 30% and above it feels like wide open throttle and hits 7-8 psi pretty damn fast. This doesnt happen all the time to meet but definitely feels very touchy when it happens.
im gonna go take a quick ride and try to get some logs to compare. e92OCD are you in a manual or auto?
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cobb, cobb 335i, cobb n54, cobb tuning bmw, cobb tuning n54 |
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