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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 > LagFix2/DTC mapswitching/6AT/6MT beta update



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      09-09-2009, 03:39 PM   #155
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Quote:
Originally Posted by mwahlert View Post
i assume all this "newfound" power in various regions is simply via the addition of more boost? why is it that you are more comfortable running more boost now?
I am seeing the same peak boost numbers, 14.7 psi with 75% UT setting. Boost is building faster and stronger, there is much less delay, as well as a little less decay.

Just a guess, but it seems the AT maps had different upshift logic in them before, the new logic is much quicker... doesn't require as much rolloff. It wasn't just for safety, it was also to prevent limps during the shift because of throttle valve closure, etc.
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      09-09-2009, 04:26 PM   #156
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Originally Posted by shiv@vishnu View Post
Update: new PROcede beta maps/firmware with Lagfix 2 will be posted up on our tuning forum later tonight. More power between 5500 and 6000rpm for stg 2 and 3. Valet functional. DTC mapswitching functional. Leanrun cruise implemented. Cheers
shiv
Do stage 1 maps have any changes over the beta-testers version?

You mention more power at 5500-6000 for stgs 2&3 only.
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      09-09-2009, 04:26 PM   #157
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Originally Posted by shiv@vishnu View Post
Nope, you beta guys will want to update to the new firmware (#132) and new maps. Even better than what you are testing. This will probably be the last firmware update before we release a while new user software program (4 maps, meth control, etc).

Shiv
So with the new maps and firmware, there will also be a new user software too, or they'll work on the current 3.121 version? I'm not clear.
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      09-09-2009, 04:34 PM   #158
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the new beta maps he's posting today work with the current software.
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      09-09-2009, 05:08 PM   #159
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Hey guys,
Just to clarify, the private (email only) beta maps that I've been emailing around for the last couple of weeks actually ran less peak boost (which occurred at 5500-6000rpm) than previous maps (7-29 and earlier). This was the case in all stages.

With the public (posted on the forum) beta maps, we brought boost targets back to where they have been for the past several months in Stg 2 and 3. Stg 1 still has the slightly reduced peak boost.

So no, we did not raise boost with the new maps. We actually dropped them during trial testing and then brought them back up to normal

And yes, even at lower boost pressures, the private beta maps were quicker than any previous map. The public beta maps should be even more so. And even more so once we release the 6MT throttle lag fix!

Shiv
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      09-09-2009, 05:13 PM   #160
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Originally Posted by shiv@vishnu View Post
With the public (posted on the forum) beta maps
I thought that meant you put them on the vishnu forum. No luck so far. Eagerly awaiting. Forget the President healthcare speech tonight, I want maps.
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      09-09-2009, 05:35 PM   #161
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New beta maps just posted:

http://www.vishnutuningforum.com/for...00&postcount=2
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      09-09-2009, 06:50 PM   #162
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Quote:
Originally Posted by shiv@vishnu View Post
Hey guys,
Just to clarify, the private (email only) beta maps that I've been emailing around for the last couple of weeks actually ran less peak boost (which occurred at 5500-6000rpm) than previous maps (7-29 and earlier). This was the case in all stages.

With the public (posted on the forum) beta maps, we brought boost targets back to where they have been for the past several months in Stg 2 and 3. Stg 1 still has the slightly reduced peak boost.
What were the reasons for reducing peak boosts in Stg 1?
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      09-09-2009, 06:53 PM   #163
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What were the reasons for reducing peak boosts in Stg 1?
Just to make the base tune more conservative in terms of boost pressure. We found that dropping peak boost level but greatly improving boost/throttle response made the car ultimately quicker. Customers can always make it more aggressive if they choose through the User Adjustable menu and CANbus logging. But the baseline is pretty darn good.

Shiv
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      09-09-2009, 07:27 PM   #164
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Quote:
Originally Posted by shiv@vishnu View Post
Just to make the base tune more conservative in terms of boost pressure. We found that dropping peak boost level but greatly improving boost/throttle response made the car ultimately quicker. Customers can always make it more aggressive if they choose through the User Adjustable menu and CANbus logging. But the baseline is pretty darn good.

Shiv
That seems to parallel my experience on Stage 1......pushing UT beyond 75% seemed to make the car less lively.

Didn't even have to datalog it - it was that obvious.
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      09-09-2009, 10:02 PM   #165
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That seems to parallel my experience on Stage 1......pushing UT beyond 75% seemed to make the car less lively.

Didn't even have to datalog it - it was that obvious.
I take this back.....just switched from the private beta maps to the ones released today and ran stage 1 UT=80%.

Could definitely feel more power from the extra boost this time around!

Funny because with the private maps, the car felt slower beyond 75% UT.

Nonetheless....I am happy on Stage 1.

I got the impression that the catalytics were the bottleneck for higher stages esp at higher rpms when there is more exhaust flow.
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      09-10-2009, 11:09 AM   #166
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Rev 1 user here. Loaded the new maps last night and these are definitely quicker and more responsive than the 7-29 maps. Feels good!
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      09-10-2009, 07:31 PM   #167
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Yes. Minus a few features. But it will still be an improvement over prior maps.

Shiv
thanks Shiv
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      09-10-2009, 09:38 PM   #168
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Nubee to this tune suff..

im almost ready to buy the rev2 can. bus this with the dual cone filters,
i have a 2007 (eairly build) 335i 6sp Manual.

can you tell me what version of softwares i will be getting?
will it have all that new ver 4.4?
and other beta software?

i cant get a chip tuner yet so i would like to order it with latest versions of everything !~!!!
so i wont have to load it later

i want to use the max power i can get witha stock car and your performance intakes..
thanks
Marc

any sales or group buys?
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      09-10-2009, 10:34 PM   #169
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Rev 1 user here. Loaded the new maps last night and these are definitely quicker and more responsive than the 7-29 maps. Feels good!
it sure packs a punch
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      09-10-2009, 10:40 PM   #170
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what is it that you are doing so differently now that allows you to comfortably run more boost into redline on the automatics without fear of damaging the transmission during upshifts?
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      09-10-2009, 11:08 PM   #171
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what is it that you are doing so differently now that allows you to comfortably run more boost into redline on the automatics without fear of damaging the transmission during upshifts?
Timing the drop in boost with actual throttle which can now be read via canbus. Nearly invisible now that it's timed right. Rev 1 guys don't have CANbus so it may be a little more pronounced for them.

Shiv
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