[FRMTL2_335i]

^ incredible results at those boost levels...

[WedgePerformance]

Originally Posted by FRMTL2_335i

^ incredible results at those boost levels...

I was blown away with the results also. Can't wait to get this installed in my car.

[Rob@RBTurbo]

Originally Posted by WedgePerformance

I was blown away with the results also. Can't wait to get this installed in my car.

Not too much longer to go now on the wait!

Rob

[boost junkie]

Originally Posted by BuraQ

So the 10% increase of wgdc cooborates to 23 PSI and started to tapper off to 20 PSI just before redline.

How did you equate the 10% increase to 23psi ?

[Rob@RBTurbo]

Originally Posted by boost junkie

How did you equate the 10% increase to 23psi ?

See post #44.

[WedgePerformance]

Originally Posted by Rob@RBTurbo

Not too much longer to go now on the wait!

Rob

[boost junkie]

Originally Posted by Rob@RBTurbo

See post #44.

Post #44 doesn't give any formulas on how "sub 50% WGDC" equals 23psi. Did you graph the WGDC to psi relationship up to the TPAP limit and then extrapolate what it would be if the WGDC continued to increase? Is the boost to WGDC relationship linear?

BQs youtube video doesn't show WGDC in the log. I'm just curious how the 23psi number was determined.

[Rob@RBTurbo]

Originally Posted by boost junkie

Post #44 doesn't give any formulas on how "sub 50% WGDC" equals 23psi. Did you graph the WGDC to psi relationship up to the TPAP limit and then extrapolate what it would be if the WGDC continued to increase? Is the boost to WGDC relationship linear?

BQs youtube video doesn't show WGDC in the log. I'm just curious how the 23psi number was determined.

Its a valid question. My prior post should've said posts #41-44 as that is where we have already discussed this. Post #44 indicates what I believe to be a "worse case scenario", in that 23psi maybe a little on the low side but surely the max boost seen was not over 25psi. To be blunt though in my opinion the 23psi statement is just very educated guessing.

The data over the entire power band is ultimately not known and this is not a secret anyone is trying to hide, nor is there any interest in hiding it. Although certainly not an ideal way to operate what was done was already done, and going forward in the name of data collections and sharing it needs to be addressed. For now though enough data is present to read between the lines (see log) and then to see that at the same WGDC you are not going to see a drastic midrange psi spike (of say greater than 5psi).

This all said and in the name of being as fair as possible, it is our belief that we were on no more than a 25psi to 20psi taper.

Rob

[BQTuning]

Originally Posted by boost junkie

Post #44 doesn't give any formulas on how "sub 50% WGDC" equals 23psi. Did you graph the WGDC to psi relationship up to the TPAP limit and then extrapolate what it would be if the WGDC continued to increase? Is the boost to WGDC relationship linear?

BQs youtube video doesn't show WGDC in the log. I'm just curious how the 23psi number was determined.

My bad, I assumed everyone was following the progression of the subject from since it was first posted http://www.e90post.com/forums/showthread.php?t=1083247

Here is the same day dyno with the starter map which was eTuned for him and already dialed in before the dyno day. Dyno results was 528 awhp / 555 awtq with only sub 40% wgdc



As you can see above boost was within the TMAP sensors limit range. Since I am the tuner of this car, I knew approximately how much wgdc % to add per lbs boost .

Target was 600 awhp or unless something doesnt allow us go any further. Revised map wgdc increased by 5% with a boat load of more torque. Results: 583 awhp / 622 awtq. Then I increased wgdc % by another %5, results, 607 awhp / 618 awtq



As you can see before and after, only a 10% increased of wgdc was added, from 40% wgdc to sub 50% wgdc, to achieve 600+ awhp / awtq.

10% more wgdc from 21 PSI does not add another 4 - 5 PSI of boost, on the same fuel, on our boost control setup, regardless if you are at sea level or not. The possibility of 23 psi is more closer to the truth based on the facts we have available.

Oh btw there was absolute wastegate control of boost during the black out ie the DME runing blind to boost after 21 PSI ie 36.2 boost means abs

[boost junkie]

Originally Posted by BuraQ

This log shows 21.7psi@38.2% WGDC then 19.3psi@40.5% and 18.2psi@39.1%... it doesn't appear to be a linear relationship. How can you determine the actual boost over the TMAP with accuracy given the data in this log?

[BQTuning]

Originally Posted by boost junkie

This log shows 21.7psi@38.2% WGDC then 19.3psi@40.5% and 18.2psi@39.1%... it doesn't appear to be a linear relationship. How can you determine the actual boost over the TMAP with accuracy given the data in this log?

In my previous post didn't I explain its relationship to the other log ? Where did you see I wrote 23 psi was actual boost or did I say it was more a possibility being closer to the truth ie actual boost ?

Originally Posted by BuraQ

...... .....The possibility of 23 psi is more closer to the truth based on the facts we have available.

The 335xi will return back to a DJ soon, obviously one with a working external boost logger and we will find out "actual boost" then ?

[C ///M]

Hey Rob, I don't have a dog in this fight just yet, I just like seeing the competition right now. But to be fair, what conditions were each of these dyno runs done with? I notice the graph is from A-Spec Tuning. The temps we've been having in the last 2 months have been extremely cold. A number of days in January don't even see a high over 0 degrees. I'm just curious as 0 degree weather vs 70 degree weather is going to have a profound impact on whichever car was there.

[boost junkie]

Originally Posted by BuraQ

In my previous post didn't I explain its relationship to the other log ?

I don't think you clearly explained the relationship which is why I'm asking how you came up with the 23 psi number. Your answer was "10% can't add 4-5psi so its probably 23" but what I'm asking is how much psi does 1% WGDC increase give you. The logs don't show a linear relationship. Either way all this guesswork seems crazy. The car needs a way to log boost over 21 psi.

[Rob@RBTurbo]

Originally Posted by C ///M

Hey Rob, I don't have a dog in this fight just yet, I just like seeing the competition right now. But to be fair, what conditions were each of these dyno runs done with? I notice the graph is from A-Spec Tuning. The temps we've been having in the last 2 months have been extremely cold. A number of days in January don't even see a high over 0 degrees. I'm just curious as 0 degree weather vs 70 degree weather is going to have a profound impact on whichever car was there.

It would be interesting to get every shred of data imaginable we do agree. Unfortunately getting anything from this vendor is something we have found to be met with great resistance. We are also comparing a vendor car to a 3rd party car, so who knows what could've been done on the "improvement" front from the vendor side that is atypical as well (aside from the already many knowns).

Ultimately there are many things that can be argued and we are open to any data that anyone wants to voluntarily produce to show they have been "slighted", and if that is produced we would do our best to give our side as well. In our opinion it is going to take a whole heck of a lot of "cumulative slights" to come close to gaining the upper hand though. Great point all around and 100% concur that there are variables outside of the hardware and tuning that can lead to better overall results.

Also there will be more and more of these combinations popping up, so more data can be collected with time. This was simply the first application of the combination, aside from the original TFT car many months ago.

Originally Posted by boost junkie

I don't think you clearly explained the relationship which is why I'm asking how you came up with the 23 psi number. Your answer was "10% can't add 4-5psi so its probably 23" but what I'm asking is how much psi does 1% WGDC increase give you. The logs don't show a linear relationship. Either way all this guesswork seems crazy. The car needs a way to log boost over 21 psi.

I do not think anyone disagrees with this. This is why in the future the cars should have at minimum a $30 boost gauge. But that aside it still stands to very strong reason that what is being stated is correct, if not very close to it. Ultimately this is why we simply stated "unknown" in the first post.

Rob

[Give_Em_The_DD]

Temp is shown in the original results post.

[C ///M]

Originally Posted by Give_Em_The_DD

Temp is shown in the original results post.

I'm sorry, I skimmed through it and I just can't see it. Do you think you could help me out?

Honestly, I agree with what Rob said, so I'm not concerned. I was just curious the conditions for each dyno. I know Rob said he was unable to obtain any other info from the competitor's dyno. Either way, no big deal. I'm not big on all the fights and drama that goes on, I just like seeing competing options for the customer. Congrats to you, it's a beautiful setup and great numbers. The intake kit looks like it definitely helps quite a bit.

[BQTuning]

Originally Posted by boost junkie

I don't think you clearly explained the relationship which is why I'm asking how you came up with the 23 psi number. Your answer was "10% can't add 4-5psi so its probably 23" but what I'm asking is how much psi does 1% WGDC increase give you. The logs don't show a linear relationship. Either way all this guesswork seems crazy. The car needs a way to log boost over 21 psi.

a wgdc increase of 5% on his car, his car alone, gives us an average of about 1 PSI inrease before a black out occurs

It doesnt apply to when boost exceeds pass the TMAP sensor ? Well thats if you follow the old school theory that you cant control boost when it exceeds the TMAP sensor.

[Give_Em_The_DD]

Originally Posted by C ///M

I'm sorry, I skimmed through it and I just can't see it. Do you think you could help me out?

Honestly, I agree with what Rob said, so I'm not concerned. I was just curious the conditions for each dyno. I know Rob said he was unable to obtain any other info from the competitor's dyno. Either way, no big deal. I'm not big on all the fights and drama that goes on, I just like seeing competing options for the customer. Congrats to you, it's a beautiful setup and great numbers. The intake kit looks like it definitely helps quite a bit.

64.49 degrees on the 607 Pass

[boost junkie]

Originally Posted by BuraQ

a wgdc increase of 5% on his car, his car alone, gives us an average of about 1 PSI inrease before a black out occurs

It doesnt apply to when boost exceeds pass the TMAP sensor ? Well thats if you follow the old school theory that you cant control boost when it exceeds the TMAP sensor.

Old school is controlling boost with a bleed valve. I don't think anyone disagrees that you can control boost with wgdc. I was just trying to understand how you calculated 23psi.

[Murph335]

Originally Posted by boost junkie

Old school is controlling boost with a bleed valve. I don't think anyone disagrees that you can control boost with wgdc. I was just trying to understand how you calculated 23psi.

This is awesome news. Looks like existing rb customers could see an extra 100hp from inlets without spending $1000+ on a hpfp upg and ~$2000 on port inj to run 100% e85! Plus all the labor, troubleshooting, getting it dialed in.

Wow!

[BQTuning]

Originally Posted by boost junkie

Old school is controlling boost with a bleed valve. I don't think anyone disagrees that you can control boost with wgdc. I was just trying to understand how you calculated 23psi.

lol thats really old school

[Maniac0908]

How is the xi transmission and components holding up to this power?