[TYC]

Hey guys. Long time reader. But haven’t posted much.
I intend on changing that with this first thread

I wanted to let everyone know all about the new turbo option for the n55, from TPC.
I’ve been working closely with the guys at ProtuningFreaks / HCP & Turbo Parts Canada over the winter, and into the spring.
We now have a prototype turbo installed in my 2015 BMW M235 I (track edition) time attack / show car. (I will do another "Build" thread separately)
Street logs have been made, and things are looking good so far.
I will be posting up information and photos here, additionally you can follow me on Instagram @theyoungcarmody

https://www.protuningfreaks.com
https://www.turbopartscanada.ca
https://11tenths.ca

Dyno testing will begin Thursday June 11 @11tenthsracecraft, in toronto ontario.

What’s been done to the turbo you ask?
- upgraded compressor wheels
- hi speed balancing
- custom machining of OEM housing
- upgraded bearings in the center cartridge

Notes:
- When we re-installed the prototype turbo back into the car, we made sure to use all brand new OEM gaskets and clamps.
- gfb dv+ installed
- n54Tuning DP
- FBO
- Custom oil cooling system and ducting
- BM3

Round 1 dyno test - boost leaks and EWG needs adjustment.
IMG_1837 by Brendan Carmody, on Flickr

Complete unit
IMG_1086 by Brendan Carmody, on Flickr

Comp. wheel
IMG_1084 by Brendan Carmody, on Flickr

Here you can see how much my new EWG Actuator is out of spec, using ISTA
ISTA EWG by Brendan Carmody, on Flickr

[2Faded35i]

What are the expectations with this new turbo??

[TYC]

Originally Posted by 2Faded35i

What are the expectations with this new turbo??

Hey bud, we finished testing this morning.
Once I finally figure out how to get these stupid images to post, I will get the graphs And some logs loaded up
In the meantime, there are videos on my Instagram account in my story.

Stage 2H 93oct off the map = 428whp 440wtq

Log
https://www.bootmod3.net/log?id=5ee2...729b35a123fb7a

[Realdread1]

Where did you dyno?

[TheSniper]

How does this turbo compare to having the bigger upgraded Dinan turbo installed?

[Dynamic_m235]

Originally Posted by TYC

Hey bud, we finished testing this morning.
Once I finally figure out how to get these stupid images to post, I will get the graphs And some logs loaded up
In the meantime, there are videos on my Instagram account in my story.

Stage 2H 93oct off the map = 428whp 440wtq

Log
https://www.bootmod3.net/log?id=5ee2...729b35a123fb7a

Custom map 93oct = 445whp 478wtq

Pretty low tbh, is this more of a stage 1/dinan turbo?

[TYC]

Originally Posted by Realdread1

Where did you dyno?

We use the dynojet at 11Tenths Racecraft

[TYC]

Originally Posted by TheSniper

How does this turbo compare to having the bigger upgraded Dinan turbo installed?

This is a stage 2, more in line with the options from Pure and Vargas

[TYC]

Originally Posted by Dynamic_m235

Pretty low tbh, is this more of a stage 1/dinan turbo?

The numbers are low this first run because we found some issues, that have now been fixed.
I am doing a roll racing event this weekend to get more BM3 and Draggy logs.
I hope to get back on the Dyno the follwing week.

Issues we had to fix:
1. Boost leak
- The ER charge pipes were not seated well on the csf intercooler. The slots on the charge pipe needed to be filed slightly so that we could get the oem e-clips to properly seat and lock onto the intercooler. **FIXED**

2. High Duty Cycle
- A new actuator was installed on my turbo when it was upgraded.
Using ISTA, we found that the arm length needs to be adjusted as it is too short. This is why we had lower then expected boost levels, with higher then expected duty cycle.

[TYC]

Thread has been updated and pics uploaded

[AmuroRay]

2. High Duty Cycle
- A new actuator was installed on my turbo when it was upgraded.
Using ISTA, we found that the arm length needs to be adjusted as it is too short. This is why we had lower then expected boost levels, with higher then expected duty cycle.

Question - what happens if you set the arm length longer than normal? What happens if you do it on a stock turbo?

[TYC]

Originally Posted by AmuroRay

Question - what happens if you set the arm length longer than normal? What happens if you do it on a stock turbo?

It doesn’t really matter if it’s longer or shorter. It needs to be within .5 mm of the correct length....which is measured and confirmed in ISTA software.

There’s no reason to make any adjustment unless you have replaced the wastegate actuator, or using a upgraded turbo with a new actuator (Like I did) that will need to be calibrated to your car.

Hope that helps clarify things