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      04-30-2022, 11:16 AM   #1
houtan
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Pure Turbos Stage 3 (PS3) dyno results for N55

Finally! I got on the dynojet at EAS in Anaheim, CA on 4/28/2022 to get some numbers on the PS3. It took a while, but I am happy I can finally share results with everyone.

Before I get into the details I wanted to mention a couple of things up front:

A big thanks to Pure Turbos for releasing another awesome product for the E series N55. I don’t think the product is posted on their website but if I get any information I will add it here.

Also a massive shoutout to my N55 tuning brothers, JPuehl and @ChrisStokes. Two of the most determined and persistent people I have met; a requirement if you are trying to self tune an E series N55. I think we have literally tested more than 500+ tunes between the three of us to figure out N55 tuning, and we are still testing till this day. Thanks fellas.

Overall Impressions, thoughts, etc.:

My car pulls like a freight train. I decided to upgrade from my PS2 because I was looking for a solution that made a little more power without breaking a sweat and was a little easier on the motor/drivetrain. For me, generating a massive amount of torque extremely early is pointless and puts a massive amount of unnecessary strain on the motor. At the same time, I wanted a faster car.

The PS3 was the perfect fit. Yes it spools slower than the PS2 when I am grabbing a log from 2,500, but that is expected. Even so, the tires still immediately light up from a standstill like the PS2. At a race RPM, the spool is awesome and I really enjoy the power delivery.

I will post logs below going wot at 4k, and you will see going from zero throttle to 18psi takes 700ish rpm, and to 24psi takes 1,000ish rpm. Loading up the motor a little bit or brake boosting shortens the time to get to boost even more.

Updated 4/25/2024: Been working on the tune and the old girl is picking up some speed. This is still full weight on street tires (Kumho v730): 100-200 dragy time of 5.36 seconds, 60-130mph of 6.18 seconds.

Here are the relevant details about my car/mods:
Car: 2011 135i, DCT
Turbo Setup: PS3 which has a GTX3582R ball bearing cartridge which should be good for 700whp (yes it’s big ). Turbosmart WG with 14lb spring. Turbosmart diverter.
Intercooler: VRSF race 1000hp intercooler
Intake: Injen
Exhaust: magnaflow 3.5" muffler, 2.5" to 3.5" y pipe resonator delete
Ignition: Delphi coilpacks, 97506 plugs gapped to .025
Fueling: PI spacer with 950cc injectors, AIC, Walboro 535 pump in PFS DIY bucket, E57 on dyno day
Boost control: GFB G Force III with the following settings; Duty Cycle 79, Gain 70, Sensitivity 35. Standard three port MAC solenoid.
Tuning: The tune I ran on the dyno is at 25psi, 9.5 degrees timing, 12.0 AFR. The tune was developed by JPuehl, @ChrisStokes, and myself via MHD.
Drivetrain: Stock DCT clutch pack with 60,000 miles, M2/3/4 flywheel, xHP stage 3 flash.

Dyno Results @25PSI (574.8WHP, 546.75 ft/lb STD; 561.01WHP, 533.60 ft/lb SAE):
Mission accomplished! Haha. I was really happy when I saw the results. The icing on the cake is the turbo literally isn’t even breaking a sweat. There is a ton more boost and power left in the turbo, but that is not for me at the moment so I stopped at the power you see here.

When I was building the overlay graphs to compare to my PS2, I noticed my PS2 dyno graph I shared a few years ago was using STD correction. I had no idea what that was so after some googling, I learned SAE is the more standard setting. I wanted to compare to my original graph so you are going to get a set comparing PS2 to PS3 using STD as well as SAE. I will also provide the PS3 graphs in both standards with RPM on the x axis (I can’t do RPM on the PS2 graphs because there was an issue with the RPM signal).

PS2 vs PS3 (STD)



PS3 by RPM (STD)



PS2 vs PS3 (SAE)



PS3 by RPM (SAE)



Dyno day video (please excuse my editing skills)



Logs:
Dyno: https://datazap.me/u/houtan/ps3-dyno...og=0&data=3-14
18psi spool example: https://datazap.me/u/houtan/ps3-spoo...log=0&data=0-1
24psi spool example: https://datazap.me/u/houtan/ps3-spoo...log=0&data=0-1

Dragy times:

100-200kmh


60-130


Ethanol content:



That is about all I have for now. Please let me know if I missed something or if you have any questions. I will of course update as I get more data, information, etc and thanks for reading!

UPDATE 28DEC2022

Was able to attend No Fly Zone in Gila Bend, AZ on December 18, 2022. Last time I went was a couple of years ago when I had my PS2 so I was pretty excited. The event wasn’t crowded so I was able to get in about 25 runs before noon! The temperatures were really cool, around 65 degrees, which was great for IATs but crap for traction. I stay around 14 psi for 1st, 2nd, and part of 3rd gear before hitting the scramble boost button to go to 23.5 psi, but I was hitting it much later due to traction.

Overall, car ran great, but I was running into some sort of torque limit issue I believe, because I was throwing misfire/ injector deactivation codes on cylinders 5 and 6 even though my logs were clean. So I ended up running about 23.5 psi of boost, which is about 3 psi short of what I can run. Having said that, I still had a blast and ran my personal best of 161.8 MPH which was a nice jump from my best of 150 MPH with the PS2. Here is a log of my 161.8 MPH run (remove the spaces): https://www.s po ol str ee t.com/graphs/log-12-20-2022-06-19-16.23570/?series=3,15,19&zoom=-1,116


Last edited by houtan; 04-25-2024 at 08:56 PM..
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      04-30-2022, 11:32 AM   #2
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Nice! Thanks for sharing! I'm looking to upgrade turbo soon, and would really like to try self tuning, just not sure I've got the time. Did you have to define tables not in the public XDF?

It's awesome there are people developing self tunes and sharing their work, it's great for the community, thanks so much to the 3 of you guys!!!
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      04-30-2022, 11:40 AM   #3
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It's been "fun" learning to self tune and I'm so ready to move up from the PS2 to the PS3 when they release it. And my is wife also looking forward to it because my PS2 will end up on her 335i, LOL

I'm dynoing my car with the PS2 on Wednesday, so looking forward to it.
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      04-30-2022, 11:55 AM   #4
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Quote:
Originally Posted by JPuehl View Post
It's been "fun" learning to self tune and I'm so ready to move up from the PS2 to the PS3 when they release it. And my is wife also looking forward to it because my PS2 will end up on her 335i, LOL

I'm dynoing my car with the PS2 on Wednesday, so looking forward to it.
Sweet! Nice to have two tuned beemers in the stall😉 Are the 3 of you guys all 98gob? I'm 9e60b, and it seems like most of the self tuning guys posting are not 9e60b🙁
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      04-30-2022, 12:41 PM   #5
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Quote:
Originally Posted by wheela View Post
Nice! Thanks for sharing! I'm looking to upgrade turbo soon, and would really like to try self tuning, just not sure I've got the time. Did you have to define tables not in the public XDF?

It's awesome there are people developing self tunes and sharing their work, it's great for the community, thanks so much to the 3 of you guys!!!
Thanks.

Trying to figure out the tuning side is a resource hog for sure. I think we log more than we drive our cars! I have it a little easier because my boost is controlled by the EBC, but both JPuehl and @ChrisStokes are using factory PID boost control and what they are able to do right now is really awesome.

Iím pretty sure the fellas have made changes to the xDf but itís hard to say what, whether itís formulas or finding tables. We are all 98G0B unfortunately.
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      04-30-2022, 02:51 PM   #6
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Quote:
Originally Posted by wheela View Post
Sweet! Nice to have two tuned beemers in the stall😉 Are the 3 of you guys all 98gob? I'm 9e60b, and it seems like most of the self tuning guys posting are not 9e60b🙁
Yes we are 98gob but so is my wife's 335 so when she finally lets me touch her car I'll be tuning the 9e60b.
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      04-30-2022, 08:39 PM   #7
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Why is the power so low with PS3's? Is it because its a single turbo? PS2's on a N54 can put over 650rwhp.
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      04-30-2022, 10:13 PM   #8
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Quote:
Originally Posted by twinturbovan View Post
Why is the power so low with PS3's? Is it because its a single turbo? PS2's on a N54 can put over 650rwhp.
I tried to address this in the op, but it’s kind of buried in the text. The short answer is the power I am at is not due to a limitation of the turbo and solely due to my personal preference. I wanted to make more power and have a lot of headroom on the turbo side. I didn’t have a specific number in mind, but I’d be lying if I didn’t say I was hoping to be around the 550-600whp range. Once I got there I was good.

I am not an expert on PS2s for the n54, so I did some quick googling to learn how much boost they are running to achieve the power you mention. It seems around 30psi but someone please correct me if I am wrong. Also would be nice to understand the specifics of the tune. My current tune is not aggressive to achieve my current power.

Seeing an n54 PS2 Dyno at 25psi would nice to compare, but my guess is the power would be similar to where I am at. I could run 30psi, but not interested right now. I am sure it will happen down the road and it’s good to know the boost is there when I am ready.
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      05-02-2022, 10:19 AM   #9
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Congrats OP, great numbers
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      05-05-2022, 02:55 PM   #10
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Looking forward to some more details on costs, installation process and logs.

ps 100-200.... 6 flat, thats moving!
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      05-05-2022, 10:25 PM   #11
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Quote:
Originally Posted by mwpa71 View Post


Looking forward to some more details on costs, installation process and logs.

ps 100-200.... 6 flat, thats moving!
Iím working on getting some additional details on price, release date etc.


Thanks, sheís definitely moving.

One thing to note is that dragy time was from November last year. She is faster than that right now. Hopefully have new times soon.
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      05-08-2022, 01:11 AM   #12
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Awesome..
what brake package are you running? just found your f80 thread... Big improvement?
Axle upgrade yet?

Last edited by mwpa71; 05-08-2022 at 02:12 AM..
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      05-08-2022, 10:38 AM   #13
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Originally Posted by mwpa71 View Post
Awesome..
what brake package are you running? just found your f80 thread... Big improvement?
Axle upgrade yet?
Yeah the brakes are nuts. Massive improvement imo. Especially when slowing down from 100+, they stop much faster than I am expecting haha.

Stock axles still. I donít really launch much from a dig so maybe thatís why they have been fine but they have seen their fare share of abuse. So far so good.
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      05-11-2022, 12:18 PM   #14
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Added a couple more dragy times to the op.
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      05-25-2022, 10:41 PM   #15
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Any more info for release date ? Was going to go pure stage 2 but having the lead for future power goals makes more sense..
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      06-16-2022, 06:01 PM   #16
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More info on this would be nice!
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      06-27-2022, 02:40 PM   #17
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Hey Houts
are you able to share any log details with more info included?
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      06-27-2022, 02:42 PM   #18
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      06-27-2022, 02:54 PM   #19
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Hey Houts
are you able to share any log details with more info included?
Hey there. By log details do you just mean more logs like the Dyno log I shared?
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      06-27-2022, 02:55 PM   #20
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Originally Posted by Jay_135i View Post
Any more info for release date ? Was going to go pure stage 2 but having the lead for future power goals makes more sense..
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Originally Posted by balkanbemve View Post
More info on this would be nice!
Sorry. I havenít heard any new information yet. I will post information once I get it though.
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      07-18-2022, 09:01 PM   #21
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Minor update. Been working on my tune and noticed with slightly richer AFR, around 12.0ish vice 12.3ish, the car felt faster. My dragy times are faster as well.

Of course every flat road I find in Mexico to squeeze a run in manages to be not flat enough. So I give up until I get to a half mile event. But here a couple of my runs. Whether was kind of warm, around 78ish. Not going to add it to the op since it’s invalid but that’s what I’ve been up to!
Attached Images
  

Last edited by houtan; 07-18-2022 at 09:15 PM..
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      09-02-2022, 04:55 AM   #22
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Hey hoots. Did you record any Dragy times with ps2?
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