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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 > New N54 5-10 v5 PWM maps/firmware



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      05-26-2011, 03:31 AM   #375
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Originally Posted by **335i** View Post
it comes with package those springs (yellows)?
They should come with 3 set of springs and some spacer. Silver, green and yellow! The green one is in the DV when it come, switch to yellow before install. It's painful to switch afterward.
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      05-26-2011, 03:46 AM   #376
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Has Shiv explained the difference b/w Boost Response and Boost Control Gain anywhere, and what the ranges of values mean for each? There is differing advice in this thread as to what each does, and which one will give back the quicker boost ramp up in lower RPM's.

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      05-26-2011, 03:57 AM   #377
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Quote:
Originally Posted by Glowin View Post
Has Shiv explained the difference b/w Boost Response and Boost Control Gain anywhere, and what the ranges of values mean for each? There is differing advice in this thread as to what each does, and which one will give back the quicker boost ramp up in lower RPM's.

Boost Control Gain scales the Boost control duty cycle table. The bigger the number, the more DC for the given boost target/rpm combo. If you are running stock turbos that aren't suffering from loose wastegates, it's unlikely that you will ever have to adjust this. This is because the Procede automatically adjusts this setting through it's wastegate compensation logic. It has a +/- 5% authority range which should be more than enough for the vast majority of users. For those exceptions (RB turbos running excessively tightened wastegate stiffness or stock turbos suffering from extra loose wastegates), the +/- 5% authority range may not be enough, thus requiring a manual adjustment. You can see if this applies to you by simply looking at wastegate compensation in the datalog menu. If it's anywhere between 5 and -5%, no need to change anything. But if it's stuck at 5 or -5%, then a little manual adjustment is necessary to get optimal boost control.

Boost Response parameter just controls the throttle point at which boost starts to ramp up. Mostly a subjective thing as different people prefer different boost/throttle relationships.

Cheers,
Shiv
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      05-26-2011, 08:00 AM   #378
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No the recircs are stock, and again it was so much "holding" the pressure, but I assure you it can get there. It basically would shoot to 20psi then start to fall back down.

Quote:
Originally Posted by RR80 View Post
You shouldn't set your start boost = or higher than the Max Boost, It will make the procede think you're overboost and dial it to map0 by itself! Try set the Start boost to 90% and Max Boost to 20psi and see!

Did you have aftermarket BOV or DV? I don't think the stock DV can hold boost over 13psi .
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      05-26-2011, 09:48 AM   #379
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Quote:
Originally Posted by shiv@vishnu View Post
Boost Control Gain scales the Boost control duty cycle table. The bigger the number, the more DC for the given boost target/rpm combo. If you are running stock turbos that aren't suffering from loose wastegates, it's unlikely that you will ever have to adjust this. This is because the Procede automatically adjusts this setting through it's wastegate compensation logic. It has a +/- 5% authority range which should be more than enough for the vast majority of users. For those exceptions (RB turbos running excessively tightened wastegate stiffness or stock turbos suffering from extra loose wastegates), the +/- 5% authority range may not be enough, thus requiring a manual adjustment. You can see if this applies to you by simply looking at wastegate compensation in the datalog menu. If it's anywhere between 5 and -5%, no need to change anything. But if it's stuck at 5 or -5%, then a little manual adjustment is necessary to get optimal boost control.

Boost Response parameter just controls the throttle point at which boost starts to ramp up. Mostly a subjective thing as different people prefer different boost/throttle relationships.

Cheers,
Shiv
Quote:
Originally Posted by loweredram View Post
I spoke to shiv on the phone about this as well. I set boost gain to 50% and I got the boost response back like the 3-30 maps. I'm with you I missed the quicker low end boost kick. I was a little confused because I assumed the boost response controlled that not the boost gain.
I hope Autotuning will come soon....

I will try this too. Right now I am finding that I have lost some power from the 3-30 maps to the 5-10 maps in the 1500 to 3500 range. After 3500 power comes on strong... I would prefer the strong pull at 1500 to 2000 so I will change my boost control to 50% and see what this does.

I also have to get my logging working - I have to copy some files around apparently.... gotta read more on this.

Any suggestions guys?
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      05-26-2011, 11:35 AM   #380
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If you wait for the Wastegate compensation to do its thing, it will ramp itself up to where it was in the 3-30 maps over a little bit of time. I just set the starting point a little lower so those who have stiffer/newer wastegates won't boost overshoot/oscillate. Just be patient and it will work itself where it needs to be for YOUR car. After a few days of driving, check the wastegate compensation value %. If it's maxed or min'd out at +5 or -5%, then you can make the manual adjustment down or up (respectively). If you found that you value was stuck at +5%, this is because you have softer/looser wastegates than most and need the extra boost DC to hit boost target.

Please understand has nothing to do with Autotuning being disabled.

Shiv
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      05-26-2011, 06:00 PM   #381
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Shiv, sent you an email regarding these maps...
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      05-26-2011, 06:05 PM   #382
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Quote:
Originally Posted by c4s335i View Post
No the recircs are stock, and again it was so much "holding" the pressure, but I assure you it can get there. It basically would shoot to 20psi then start to fall back down.
From where are you reading boost pressure?

If you are reading from the fuel gauge and you overboost (meaning you exceeded MAX boost settings) the throttle closes. During the throttle closure process it will further induce a false inflated boost pressure and you will notice the car will have extremely laggy response. The 3-30 maps were very boost happy. Are you still on those?

Go to 5-10 if you havnt.

The reason it is false is because boost is read PRE throttle body. When the throttle blade closes, it creates a turbulance to where the boost is read thus creating a false inflated boost reading. Be aware this is not the actual pressure in the intake manifold or the engine.

If you are overboosting you should adjust your boost delay another + 10.

This means you overboosted and in doing so the PROcede has closed throttle out of safety.

If your still confused PM me.
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      05-26-2011, 06:49 PM   #383
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Quote:
Originally Posted by shiv@vishnu View Post
Boost Control Gain scales the Boost control duty cycle table. The bigger the number, the more DC for the given boost target/rpm combo. If you are running stock turbos that aren't suffering from loose wastegates, it's unlikely that you will ever have to adjust this. This is because the Procede automatically adjusts this setting through it's wastegate compensation logic. It has a +/- 5% authority range which should be more than enough for the vast majority of users. For those exceptions (RB turbos running excessively tightened wastegate stiffness or stock turbos suffering from extra loose wastegates), the +/- 5% authority range may not be enough, thus requiring a manual adjustment. You can see if this applies to you by simply looking at wastegate compensation in the datalog menu. If it's anywhere between 5 and -5%, no need to change anything. But if it's stuck at 5 or -5%, then a little manual adjustment is necessary to get optimal boost control.

Boost Response parameter just controls the throttle point at which boost starts to ramp up. Mostly a subjective thing as different people prefer different boost/throttle relationships.

Cheers,
Shiv
Thx for the reply Shiv. I was still on V4, 8-17 maps until yesterday, believe it or not, and jumped to these maps directly. I did find (like a few others here it seems, though they are comparing these to the 3-30 V5 maps) that the low RPM boost response is less on this map. I didn't need to press the gas as much before to get a few PSI of boost compared to now.

So if Boost Response is already set to 100% by default, and there's no more room to make it more "responsive", it's the Boost Control Gain that one would adjust to get the old boost back? Would it be ok for us to bump up the Boost Control Gain to 50%, even without first checking the wastegate compensation in the datalog menu?
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      05-26-2011, 06:53 PM   #384
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Quote:
Originally Posted by Glowin View Post
Thx for the reply Shiv. I was still on V4, 8-17 maps until yesterday, believe it or not, and jumped to these maps directly. I did find (like a few others here it seems, though they are comparing these to the 3-30 V5 maps) that the low RPM boost response is less on this map. I didn't need to press the gas as much before to get a few PSI of boost compared to now.

So if Boost Response is already set to 100% by default, and there's no more room to make it more "responsive", it's the Boost Control Gain that one would adjust to get the old boost back? Would it be ok for us to bump up the Boost Control Gain to 50%, even without first checking the wastegate compensation in the datalog menu?
Please re-read my post regarding checking for wastegate compensation and/or waiting for the Procede to auto-compensate for your wastegate stiffness.

Also, low end boost targets have not changed appreciably over the past year or so. So the old maps do not have more low end torque. In fact, they have slightly less. But what has changed over time is the relationship between boost target and applied throttle.
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      05-26-2011, 07:22 PM   #385
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I have said it all along...throttle feels so much lighter with the 12-17 maps compared to the new ones
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      05-29-2011, 03:43 PM   #386
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Shiv, can we disable autotune with these maps and manually set our own agrression level?
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      05-29-2011, 03:58 PM   #387
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Quote:
Originally Posted by cn555ic View Post
I have said it all along...throttle feels so much lighter with the 12-17 maps compared to the new ones
+1 Drivability is great, but it's really different compared to the last V4 maps.

I can floor it in 2nd at 2,5k rpm, and the wheels will barely lose traction. Boost gain is set to 50%.

Yes, the car will accelerate hard, but I kinda miss the raw power down low of the JB4 which, in the same situation, would make traction control kick in wildly...
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      05-29-2011, 05:45 PM   #388
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V5 is nice but I do miss the power down low that v4 had. My car just doesn't seem that quick anymore even thoughh it might be faster. Looking forward to future updates.
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      05-30-2011, 07:16 AM   #389
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Here's something I noticed on my 3-30 and 5-10 logs. On both logs, the Boost Control Set Point shows that the boost should be kicking in well before it actually is, so there is a bit of delay in both. Keep in mind that both logs have the DC set to 50%. There's also a strange oddity between shifts. In the 3-30 maps the AFR drops to 11.8 when the throttle is closed, which is fine of course, then steadys out below 12, around 11.8. Also, good.

The 5-10 maps show the AFR dropping to 9.8 in between shifts when the throttle is closed, which is pig rich IMO, then normalize above 12, around 12.5 AFR in the upper RPMs. Not ideal IMO. And these results are repeatable of course.

I can send you the files if you would to review Shiv, just let me know.

3-30


5-10
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      05-30-2011, 09:59 AM   #390
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that's just the logging software when you combine channels on 1 graph. separate them and you'll see that they match pretty close with some delay in the beginning for spool time.
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      05-30-2011, 11:14 AM   #391
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Quote:
Originally Posted by Joshboody View Post
that's just the logging software when you combine channels on 1 graph. separate them and you'll see that they match pretty close with some delay in the beginning for spool time.
+1, just a scaling bug that occurs sometimes when you combine multiple graphs. just separate them
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      05-30-2011, 11:36 AM   #392
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Quote:
Originally Posted by ridin135 View Post
V5 is nice but I do miss the power down low that v4 had. My car just doesn't seem that quick anymore even thoughh it might be faster. Looking forward to future updates.
+ 1, We need more power down low. I hope Shiv will fix it in next update.
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      05-30-2011, 05:06 PM   #393
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I looked at the raw data before I posted, and there is a delay in the boost response. The boost still seems to come on slower than it should in the lower rpm, could be my imagination.

What about the change in AFR?

Anyone see DME code 11757?

Quote:
Originally Posted by Joshboody View Post
that's just the logging software when you combine channels on 1 graph. separate them and you'll see that they match pretty close with some delay in the beginning for spool time.

Last edited by C4sF80M3; 05-30-2011 at 05:23 PM..
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      05-30-2011, 06:01 PM   #394
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I agree, raised boost gain to P And that helped a little but still seems slow to build

Quote:
Originally Posted by c4s335i View Post
I looked at the raw data before I posted, and there is a delay in the boost response. The boost still seems to come on slower than it should in the lower rpm, could be my imagination.

What about the change in AFR?

Anyone see DME code 11757?

Quote:
Originally Posted by Joshboody View Post
that's just the logging software when you combine channels on 1 graph. separate them and you'll see that they match pretty close with some delay in the beginning for spool time.
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      05-30-2011, 06:02 PM   #395
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Quote:
Originally Posted by c4s335i View Post
I looked at the raw data before I posted, and there is a delay in the boost response. The boost still seems to come on slower than it should in the lower rpm, could be my imagination.

What about the change in AFR?

Anyone see DME code 11757?
i know someone that just got it on 5-10 maps.
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      05-30-2011, 06:13 PM   #396
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Quote:
Originally Posted by c4s335i View Post
I looked at the raw data before I posted, and there is a delay in the boost response. The boost still seems to come on slower than it should in the lower rpm, could be my imagination.
Not your imagination at all.

But it's not accurate to say that it boost builds slower than it should because it is programmed to do this in the newer maps.......so it's doing what it should.

But boost definitely builds a little less rapidly than it did on earlier maps.


I too would like it reverted back to how it was.
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