B4Q 80-AEB TD04HL-15T; New research project

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Re: B4Q 80-AEB TD04HL-15T; New research project

Postby ChrisAudi80 » Wed Aug 26, 2020 4:04 am

Wow, it's been a long time since an update. The COVID thing gave me lots of time to work on stuff.

The back pressure sensor and EGT sensor in front of the turbine are finally in. Haven't hooked up the new EGT yet because I want to integrate it into the current sub-harness. The BP is working now. And yes, the turbine is restrictive. Have a EMAP/IMAP ratio of 2.5:1. No bueno.

Also installed the water injection stuff, but with less success. Found I cracked the top of the pump and some funny things happen PWMing the DO solenoid with VEMS. Solenoid is connected to EC36-34. The nozzle holder is in, but I'm not happy with how I mounted the hose and solenoid.

Oh and managed to damage the compressor wheel with my dumb ass.

Pictures.
Attachments
BP and EGT fitting 1.jpg
BP and EGT fitting 1.jpg (285.02 KiB) Viewed 627 times
BP and EGT fitting 2.jpg
BP and EGT fitting 2.jpg (234.02 KiB) Viewed 627 times
WI nozzle holder 1.jpg
WI nozzle holder 1.jpg (139.93 KiB) Viewed 627 times
compressor wheel damage.jpg
compressor wheel damage.jpg (88.48 KiB) Viewed 627 times
96 S6 auto
95 80Q AEB VEMS
ChrisAudi80
 
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Location: Bangkok, Thailand

Re: B4Q 80-AEB TD04HL-15T; New research project

Postby ChrisAudi80 » Wed Aug 26, 2020 4:14 am

The next part is to focus on the WI system and get it running the way it should.
It will be interesting to see what effect, if any, pre turbo injection will have on EMAP, EGT, compressor outlet temp and IMAP.

In unrelated news, I have built an injector flow test rig. All custom made. It can test 8 injectors at the same time and can simulate engine running.
It uses a Link Extreme ECU.
Been working on it for some time. The glass tubes are 1600cc each so plenty to test large injectors.
96 S6 auto
95 80Q AEB VEMS
ChrisAudi80
 
Posts: 873
Joined: Mar 3, 2013
Location: Bangkok, Thailand

Re: B4Q 80-AEB TD04HL-15T; New research project

Postby PRY4SNO » Wed Aug 26, 2020 11:34 am

That's a pretty nifty injection fitting you've fabbed up. Can't wait for more results with the w/m injection project.
Find me on Instagram @pry4sno

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