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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > All COBB Tuning AccessPORT Flash for N54 335i Discussion Here



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      08-19-2011, 01:23 PM   #2091
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Quote:
Originally Posted by Clap135 View Post
Trust me guys Cobb stage 2 will blow giac out the water. I am seeing 18 psi till about 5300 rpm.
What are your mods?
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      08-19-2011, 01:24 PM   #2092
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      08-19-2011, 01:27 PM   #2093
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Originally Posted by Clap135 View Post
Threatening to put someone through a windshield was a bit over board lol....he never showed anyway lol. As for stage two here a couple things that need to get ironed out but the car feels amazing.
lol as opposed to leaving some curb rash on their forehead nice to have you back though

i've run that same map as well, pretty wild just needs to hold that boost with RBs to 6k rpm and I'll be the happiest with the tune i've ever been since I got this car one word, SOLID!
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      08-19-2011, 01:30 PM   #2094
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alright I either need to get my hands on that tune or you guys need to stop talkin about it, this wait is killing me.
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Mr nice doesn't play nice. But I guess he has a very fast car
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      08-19-2011, 01:30 PM   #2095
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Quote:
Originally Posted by Clap135 View Post
Trust me guys Cobb stage 2 will blow giac out the water. I am seeing 18 psi till about 5300 rpm.
THANK GOD
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      08-19-2011, 01:33 PM   #2096
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Originally Posted by Mr. Nice View Post
alright I either need to get my hands on that tune or you guys need to stop talkin about it, this wait is killing me.
dito.
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      08-19-2011, 01:49 PM   #2097
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Quote:
Originally Posted by Clap135 View Post
Trust me guys Cobb stage 2 will blow giac out the water. I am seeing 18 psi till about 5300 rpm.
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      08-19-2011, 01:55 PM   #2098
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Quote:
Originally Posted by Clap135 View Post
Trust me guys Cobb stage 2 will blow giac out the water. I am seeing 18 psi till about 5300 rpm.
Good to have u back!
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      08-19-2011, 02:11 PM   #2099
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Thanks for the warm welcome back lol. I'm still giddy for atr personally. The current stage 2 is nice but my version of stage two will be the stage 1 boost curve flipped left to right with the proper timing.
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      08-19-2011, 02:25 PM   #2100
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Quote:
Originally Posted by Clap135 View Post
Thanks for the warm welcome back lol. I'm still giddy for atr personally. The current stage 2 is nice but my version of stage two will be the stage 1 boost curve flipped left to right with the proper timing.
Running less boost down low and more towards redline?
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      08-19-2011, 02:27 PM   #2101
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nice...Clap is back.

The forum was getting boring without him lol

Alan
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      08-19-2011, 02:37 PM   #2102
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Quote:
Originally Posted by Overboost View Post
Running less boost down low and more towards redline?
Yea pretty much. I would probably run 12 ramping up to 16 by 5.5 down to 15 by 6.5 and 12 by redline. That would be a nice stage two pump gas map imo.

I am not sure what mods are on cobbs stage two car but on my fully bolted car I am on the brink of running out of fuel down low at 18 psi. You see my low and high pump pressure begin to spike up and down however the af stays perfect so I'm right on the edge. This also happens only on cold morning and not on hot days.
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      08-19-2011, 02:41 PM   #2103
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Clap I guess that means your pump gas map would be more conservative than the OTS stage 2 beta maps at 5000 rpm?
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      08-19-2011, 02:46 PM   #2104
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Quote:
Originally Posted by Clap135 View Post
Yea pretty much. I would probably run 12 ramping up to 16 by 5.5 down to 15 by 6.5 and 12 by redline. That would be a nice stage two pump gas map imo.

I am not sure what mods are on cobbs stage two car but on my fully bolted car I am on the brink of running out of fuel down low at 18 psi. You see my low and high pump pressure begin to spike up and down however the af stays perfect so I'm right on the edge. This also happens only on cold morning and not on hot days.
Ok. What does your stage 2 map currently target below 5000rpm?
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      08-19-2011, 03:10 PM   #2105
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Quote:
Originally Posted by Overboost View Post
Ok. What does your stage 2 map currently target below 5000rpm?
There is no "his" map. This is all theoretical for when ATR comes out
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      08-19-2011, 03:32 PM   #2106
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So Cobb prefers to tune with more boost than ignition apparently compaired to Giac.
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      08-19-2011, 03:36 PM   #2107
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Clap,

What intercooler are you using if you don't mind sharing?
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      08-19-2011, 03:41 PM   #2108
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I am hitting 18 psi from about 2700 ish to 5300 ish. Ets fmic
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      08-19-2011, 03:43 PM   #2109
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Whoa, clap first day back?
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      08-19-2011, 04:24 PM   #2110
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Quote:
Originally Posted by mithiral67 View Post
I havent seen anyone do a good comparison with say a vbox. As its simply basising the calculation off the time elapsed from 0 mph to 60 mph per the ecu's understanding of speed, its would be as accurate as the ecu's speedo.
Here's a comparison between the Cobb and a timeslip:



Down low it's pretty accurate, but gets a little optimistic on the top end. Close enough for comparison sake though.
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      08-19-2011, 04:37 PM   #2111
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Quote:
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Here's a comparison between the Cobb and a timeslip:



Down low it's pretty accurate, but gets a little optimistic on the top end. Close enough for comparison sake though.
4 Mph at the end of 1/4 is a big difference.
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      08-19-2011, 04:43 PM   #2112
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Quote:
Originally Posted by Questforpower View Post
4 Mph at the end of 1/4 is a big difference.
Its a difference that depends and many things:

1. Is the op running identical tire diamter as stock?
2. The track speed is an average of the last 60 feet, the ap is your actual speed.
3. If number 1 is off, the whole thing is useless
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