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Thread: Cobb OTS comparison between v402 and v403

              
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    Cobb OTS comparison between v402 and v403

    Went back to PBIR to see how Cobb's new v403 map stacks up and this test and tune confirms what my butt dyno has been saying all along. There is no doubt that v403 is a smoother map than v402 and I commend Cobb for bringing out such a map, but there is something about the beta v402 that I like even more. It feels like it has more balls in 3rd and 4th gear. Well, without further ado:

    Click here to enlarge

    2008 135i
    Cobb OTS E30 maps
    Helix FMIC
    Raceland downpipes
    Stock everything else including stock runflat tires

    Unfortunately after those clean runs, I started misfiring on the way back home. It sucked because I wanted to show BuraQ how much balls this car has without meth (spun at 50mph in 3rd gear and then misfired lol).Click here to enlarge

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    Nice runs Ryan. Time to ditch the combat boots lol.

    Authorized Dealer of: BMS, Evolution Racewerks, ETS, and more

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    Click here to enlarge Originally Posted by RnmEvo9 Click here to enlarge
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    ....Unfortunately after those clean runs, I started misfiring on the way back home. It sucked because I wanted to show BuraQ how much balls this car has without meth (spun at 50mph in 3rd gear and then misfired lol).Click here to enlarge
    Hehe, get it fixed before this nice weather goes away so we can have another run in Mexico.

    This time give me your best, I will be recording Click here to enlarge
    > COBB ATR SelfTuned: 12.1 ET @ 120.61 mph in 1/4 mile
    > RENNtech Tuning: 11.78 ET @ 116 Mph in 1/4 mile
    > Dinan Stage 3: 12.5 ET (Best) 111 Mph (Best) in 1/4 mile
    > 400+ launches, 3 Driveshafts, No DCT Slippage, Flash Only
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    how much time between those 2 runs?, and any runs in between those 2? could be a few things, including adaptations reset from reflashing

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    how is the smoothness of the newer Cobb maps? For example, part throttle let off and then wot.
    2007 335i (100% stock with mods)

    N54 is not a German 2JZ lol

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    Click here to enlarge Originally Posted by LostMarine Click here to enlarge
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    how much time between those 2 runs?, and any runs in between those 2? could be a few things, including adaptations reset from reflashing
    I came to the track with v403 loaded and ran that time around 7pm, so there was probably about half an hour between those runs. This was back to back runs with no runs in between the two. Once I flashed back to v402, I drove around for like 5 minutes to see if there were any hiccups and then I made that pass. My slip from Halloween was with v402 as well when I ran a 12.1@118.50 with a 2.192 60ft (I wasn't aware if there was a v403 map at that time.)

    Q4P, v403 e30 map feels more refined than v402 and it definitely is a smooth map compared to the beta version. Since it is smoother, it is also more deceitful of how quick it speeds up but there is a difference up top where it can be felt IMO regarding power between these 2 maps. I guess for every day driving I'm going to stick with v403, but when I'm in the mood to play with someone, definitely going to have to go back to the rawness of v402. Click here to enlarge

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    Here is my timeslip from Halloween with v402:

    Click here to enlarge

    Granted different days, but you can clearly see I was still faster on this map despite a much worse 60ft than my v403 last night.

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    Nice runs Ryan. Siren FTW

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    Looking through the tables the only difference between 402 and 403 i have found is that the WGDC base table is more conservative in 4 cells where the 2.167-2.26 set point rows and 189-200 MAF WGDC columns intersect.

    MOTIV750, MOTIV P-1000 PI, MOTIV/FUEL-IT! low pressure fuel system, AEM EMS/COBB AP, Aquamist HFS-3, ETS FMIC, SPEC stage 3+ clutch/SS flywheel, BC Racing coilovers and VMR wheels wrapped in Hankook RS3s.

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    F f f flatline ... thats my guess

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    Grabbing a couple datalogs of each map is probably a good idea(once the misfires are cleared up.)

    MOTIV750, MOTIV P-1000 PI, MOTIV/FUEL-IT! low pressure fuel system, AEM EMS/COBB AP, Aquamist HFS-3, ETS FMIC, SPEC stage 3+ clutch/SS flywheel, BC Racing coilovers and VMR wheels wrapped in Hankook RS3s.

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    Click here to enlarge Originally Posted by RnmEvo9 Click here to enlarge
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    Here is my timeslip from Halloween with v402:

    http://www.bimmerboost.com/images/im...bbe30map-1.jpg

    Granted different days, but you can clearly see I was still faster on this map despite a much worse 60ft than my v403 last night.
    definitly a bit more topend in 402 then. would still like to see a 403 run right after flashin to be 100% sure. BUT, you can probably get a custom tune to keep the refinement of 403 and more topend than 402

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    Power wont be different between those versions...its just a refinement in boost control at lower MAF
    Porsche 997.1/997.2, BMW N54/N55 Performance and Custom COBB Tuning Experts
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    Click here to enlarge Originally Posted by dzenno@ProTUNING Freaks Click here to enlarge
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    Power wont be different between those versions...its just a refinement in boost control at lower MAF
    how do you explain the difference in mph though? its not much, but its more

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    Just variance in conditions and mostly driving imho boost, timing, fuel, vanos (power side of the tune) are the same in those maps so if the runs were indeed identical from the conditions, driving ppint of view there really shouldn't be a difference..anyone can have better/worse runs on the same tune/mods/octane especially at the 1/4 even if you keep conditions the same, you know that Click here to enlarge
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    Click here to enlarge Originally Posted by RnmEvo9 Click here to enlarge
    This quote is hidden because you are ignoring this member. Show Quote

    Q4P, v403 e30 map feels more refined than v402 and it definitely is a smooth map compared to the beta version. Since it is smoother, it is also more deceitful of how quick it speeds up but there is a difference up top where it can be felt IMO regarding power between these 2 maps. I guess for every day driving I'm going to stick with v403, but when I'm in the mood to play with someone, definitely going to have to go back to the rawness of v402. Click here to enlarge
    Let me know when your ready, I'm always ready

    Click here to enlarge
    > COBB ATR SelfTuned: 12.1 ET @ 120.61 mph in 1/4 mile
    > RENNtech Tuning: 11.78 ET @ 116 Mph in 1/4 mile
    > Dinan Stage 3: 12.5 ET (Best) 111 Mph (Best) in 1/4 mile
    > 400+ launches, 3 Driveshafts, No DCT Slippage, Flash Only
    "BMW DCT 335is" on Facebook


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    Click here to enlarge Originally Posted by dzenno@ProTUNING Freaks Click here to enlarge
    This quote is hidden because you are ignoring this member. Show Quote
    Just variance in conditions and mostly driving imho boost, timing, fuel, vanos (power side of the tune) are the same in those maps so if the runs were indeed identical from the conditions, driving ppint of view there really shouldn't be a difference..anyone can have better/worse runs on the same tune/mods/octane especially at the 1/4 even if you keep conditions the same, you know that Click here to enlarge
    i hear ya, but from info posted, its 1 mph, and shows. obviously not much, and not a lot of data, but the mph seems consistant for 402

    @RnmEvo9

    have you ever ran 403 more than the one slip posted?

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    Click here to enlarge Originally Posted by LostMarine Click here to enlarge
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    i hear ya, but from info posted, its 1 mph, and shows. obviously not much, and not a lot of data, but the mph seems consistant for 402

    @RnmEvo9

    have you ever ran 403 more than the one slip posted?
    No it was the only time I ran that as I was pissed with that mph. I'll definitely do more runs with it and see how it does though. On v402 I am consistent in getting 118-119mph trap speeds though.

    BuraQ, I am up 3-1 against you and those were with the pump gas maps lol. Sucks I misfired so much last night after my runs at pbir, otherwise I think the score would have gone more in my favor.Click here to enlarge

    For everyone else, is it possible to have misfires due to low fuel? I was basically running on fumes when I was about to run him, but it didn't want to go anywhere. I filled up with half a tank later on and I still misfired, though granted I didn't let the fuels properly mix. Right now I was driving around and doing low 3rd gear pulls (just like last night) and I haven't misfired yet...Click here to enlarge

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    Click here to enlarge Originally Posted by RnmEvo9 Click here to enlarge
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    No it was the only time I ran that as I was pissed with that mph. I'll definitely do more runs with it and see how it does though. On v402 I am consistent in getting 118-119mph trap speeds though.

    BuraQ, I am up 3-1 against you and those were with the pump gas maps lol. Sucks I misfired so much last night after my runs at pbir, otherwise I think the score would have gone more in my favor.Click here to enlarge

    For everyone else, is it possible to have misfires due to low fuel? I was basically running on fumes when I was about to run him, but it didn't want to go anywhere. I filled up with half a tank later on and I still misfired, though granted I didn't let the fuels properly mix. Right now I was driving around and doing low 3rd gear pulls (just like last night) and I haven't misfired yet...Click here to enlarge
    Start with plugs and coils. How old are they? I dont necessarily think plug replacement is necessary so soon my plugs at 32k looked brand new.

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    Plugs were replaced about 5k miles ago. I'm trying my hardest to reproduce the misfire and it's not happening now...

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    Click here to enlarge Originally Posted by RnmEvo9 Click here to enlarge
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    .... Right now I was driving around and doing low 3rd gear pulls (just like last night) and I haven't misfired yet...Click here to enlarge
    You car knew what was up and bowed out from a can of waaaa Click here to enlarge
    > COBB ATR SelfTuned: 12.1 ET @ 120.61 mph in 1/4 mile
    > RENNtech Tuning: 11.78 ET @ 116 Mph in 1/4 mile
    > Dinan Stage 3: 12.5 ET (Best) 111 Mph (Best) in 1/4 mile
    > 400+ launches, 3 Driveshafts, No DCT Slippage, Flash Only
    "BMW DCT 335is" on Facebook


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    Click here to enlarge Originally Posted by RnmEvo9 Click here to enlarge
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    Plugs were replaced about 5k miles ago. I'm trying my hardest to reproduce the misfire and it's not happening now...
    Highly doubt its the plugs then. Do you happen to have an 07 that falls within the DME TSB production date?

    I guess coils just to rule them out but I doubt that as well.

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    Click here to enlarge Originally Posted by themyst Click here to enlarge
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    Highly doubt its the plugs then. Do you happen to have an 07 that falls within the DME TSB production date?

    I guess coils just to rule them out but I doubt that as well.
    His car is a 2008, I think build date May

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    Click here to enlarge Originally Posted by E90Company Click here to enlarge
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    His car is a 2008, I think build date May
    6AT right?

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    Click here to enlarge Originally Posted by themyst Click here to enlarge
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    6AT right?
    Yep, but it's not misfiring now which is why I'm wondering if low fuel at the time could have been the culprit. When I was on fumes, it was multiple misfires. When I filled up last night and tried to do a pull, it misfired only in cylinder 1. Now it's not misfiring at all.

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