It's the ports on a 3-port boost solenoid.

NO = normally open (when solenoid is de-energised)
NC = normally closed (as above)
C = common (always open)

This is a good reference point: https://www.onpointdyno.com/boost-control-plumbing-get-it-right-save-money/

Interesting typically the port names are usually 1,2,3 for a 3 port 2 position valve and the NC and NO refers to its de-energised state.
We use many pneumatic valves ( 5 port, 3 port, 2 position, 3 position) etc and haven?t really seen the ports referred to as NC/NO before.

Hope it?s going well. It?s an awesome care.

Ah right. Yeah they are numbered 1,2,3 on the solenoid itself. I find NC, NO and C easier to understand without having to remember what the numbers refer in terms of on/off state.

To follow up on the above I quickly found the single port boost control method was quite laggy, especially in low gears. I also had difficulty hitting boost targets much over 1.4 bar (1.55 was about the max). So I decided to try out the alternative 2 port method (graphic below with link to the relevant full turbosmart document). It?s also ?alternate method B? in the earlier document I linked on boost control plumbing.


Source: https://www.turbosmart.com/wp-content/uploads/2012/04/TS-0302-1002_EBS_40psi_MAY_12.pdf

From the linked document above:
? EXTERNAL WASTEGATE CONNECTION
The first method of installation is a one port connection. If the desired boost level is not achieved i.e. boost level is too low, or not controllable, it is recommended that the wastegate spring be changed to a spring which is closer to the desired boost pressure or to trial a 2 port connection method.
There are 3 different 2 port connection methods that can be trialled to achieve different results. The 2 port method (1) can be used if there is high exhaust manifold back pressure forcing the valve open. The 2 port method (2) allows the user to achieve the maximum boost pressure their turbo system is capable of. If a wide range of boost pressures is desired i.e. 5 ? 40 PSI, the 2 port method (3) with a 4 port solenoid (sold separately ? TS-0301-2003) might be needed.?

After adjusting the boost solenoid duty cycles with the Link software (fully mapped closed loop boost strategy) I?ve got the system working very well. It only requires around 7% duty cycle for 1.4 bar vs 65% using the single port method. I can hit 1.6+ bar with ease on about 10-12% duty cycle. Spool up is noticeably quicker. I?m very happy with this configuration having run it for a some weeks now.

Twins! Great to catch up with Frank yesterday and talk cars for an hour or two.



Frank?s car first register Oct ?95 and my car first registered Sep ?95.

Keeping very good company while going for a cruise to pine harbour.

Good catch-up mate.

Quote from: le mans on June 21, 2021, 02:15:42 PM
Twins! Great to catch up with Frank yesterday and talk cars for an hour or two.



Frank?s car first register Oct ?95 and my car first registered Sep ?95.

Would I be marginally correct if I said that TP3155 was used by Audi NZ for local press articles before being delivered to the owner after it was airfreighted to NZ. ?

I suspect the car you are thinking of was an early delivery eg 1994. Nick will know.

This magazine was Feb 1995 which is before TP3155 was registered. I believe the rego in the article (TB4444) was never actually used on an RS2 and was ?photoshopped? or similar.



Edit: The car in the above magazine article had wooden cabin trim. TP3155 has carbon fibre.

Quote from: Horch on December 13, 2021, 09:04:03 PM
Would I be marginally correct if I said that TP3155 was used by Audi NZ for local press articles before being delivered to the owner after it was airfreighted to NZ. ?

Na, that was TB1***. The number plate was photoshopped to TB4444 for the magazine article.

Quote from: RS ZWEI on December 14, 2021, 02:37:29 PM
Na, that was TB1***. The number plate was photoshopped to TB4444 for the magazine article.

I wonder if they used the TB4444 plate from the stack of plates in the box. I doubt they had photoshops lasso tool sussed in 1995. Haha

Quote from: le mans on December 14, 2021, 06:24:18 AM
I suspect the car you are thinking of was an early delivery eg 1994. Nick will know.

This magazine was Feb 1995 which is before TP3155 was registered. I believe the rego in the article (TB4444) was never actually used on an RS2 and was ?photoshopped? or similar.



Edit: The car in the above magazine article had wooden cabin trim. TP3155 has carbon fibre.

I concede my mistake and yes the plate was photoshopped prior. The images were taken at Mt Richmond just up the highway from EMD offices a few days after arriving in the hold of a 747.

Quote from: Horch on December 14, 2021, 10:14:44 PM
I concede my mistake and yes the plate was photoshopped prior. The images were taken at Mt Richmond just up the highway from EMD offices a few days after arriving in the hold of a 747.

It?s cool to hear about such details.

Quote from: Horch on December 14, 2021, 10:14:44 PM
I concede my mistake and yes the plate was photoshopped prior. The images were taken at Mt Richmond just up the highway from EMD offices a few days after arriving in the hold of a 747.

Ouch..who paid the freight bill in the end 

Quote from: le mans on December 14, 2021, 06:24:18 AM
I suspect the car you are thinking of was an early delivery eg 1994. Nick will know

Edit: The car in the above magazine article had wooden cabin trim. ?? (N1U/07)

#1156 - RS2 Avant  - Polar Silver arrived in NZ 4th Jan 1995 on a Lufthansa flight. We we permitted to enter the tarmac area to witness the aircraft unloading? clearly well prior to the Sept 11 security measures as this would not be possible today.

It was really a special experience and I recall it vividly for a number of reasons. Such was the excitement at the first RS2 unit arriving, myself and the MD trucked down to the airport to witness the experience at the invite of the airport authority. I guess vehicle airfreight was a novelty limited to Motorsport in the day. (Audi sport rally team for example)

It was like watching a jumbo jet giving berth for the want of a better description. The RS2 had but millimeters clearance exciting the hold aperture, positioned on a rolling sled moving quietly from the aircraft belly in the afternoon light.

EMD and with the support of Audi Ag accepted the freight cost to meet the customers request to get the first car into NZ asap with the agreed ability for us to use it for a number of local press activities.

So taking a step back?  this white body Audi 80 estate underwent initial assembly at Audi Ag. Following this the unit, partially completed, was then transported by rail to Porsche Ag for the recognised RS2 design enhancement work conducted by Porsche. It was then returned to Ingolstad for final assembly. The car then went by road transport to Frankfurt Airport for the flight to NZ. Take also into account the vehicle would have encountered numerous rail sidings and production storage facilities during its production and multiple transport excursions. By now it?s a well travelled unsold and undamaged product.

This is why it?s vivid?

Having been expelled from the aircraft the perfect silver RS2 had to be taken to a bonded area for customs clearance and paperwork etc somewhere at the back of the airport facility. Following a brief inspection on the tarmac to confirm all was well with the exterior it disappeared on a trailer unit. We were advised to follow and it to the customs office and it would be released to our appointed carrier within 30 odd minutes? great.!

True to their word 30 mins later C&H pulled out of the compound with the prize sitting on a flat deck but with a driver with a, let?s say, a bemused expression. He beckoned us over and jettisoned himself from the cab shaking his head? approaching us in the car park and boldly exclaimed ?sorry guys but those customers muppets have just damaged this f?kn thing?

Sure enough the passenger lower door skin was solidly creased.. !. WTF.

All those carefully managed and travelled global kms and it gets on ground to godz own and within a half hour? thump !
Accosting this agency looking for information was fruitless as they closed ranks and simply said make a claim. Beyond believe.

#1156 - 10th Jan Authorised repairer - RW Hasler Panel and Paint

What started out as a day mapped out for a distributors product genesis quickly turned to anguish. Vivid..

If you reading this Geoff thanks for creating a great personal experience by ordering this unique piece of motoring gold in the first instance that gave myself and other EMD employees Himalayan believe on just how good our brands were?

And it got even better? introducing Roland Meyer - MTM? this promptly became our motoring meth?

Wow!

What a great story, and even involving a proper buffoon and a band of villains! Typical of workers around airports it seems, it?s almost as if they didn?t know whaat they were dealing with, which cannot be given the fanfare and special treatments authorised by airport admininstration! How angry would the owner have been. Just simply amazing. But it does create a bit of motoring folklore!

Very cool story.

That RS2 to the best of my knowledge has only had 2 owners and resides in Wellington.

Just spotted TB1454 in wellington today

The electric windows/sunroof had been somewhat intermittent on this car for the last few months and recently became very intermittent. The same issue cropped up several years ago and I fixed it by heating up the solder of a cracked joint on the window relay board. That fixed the issue at the time but here we are again. I pulled the relay and thought the solder joints all looked good. Then I did some googling and found a thread where a guy fixed his issue by changing a thermal fuse/circuit breaker on that circuit. I ordered one through Qualitat (great service by the way, can't fault them). Unfortunately that didn't solve the problem so back to the window relay. My wife thought she could see a defect in a printed wire trace. I emailed Phillips Electronics with a photo (https://phillipselectronics.co.nz) and the owner rang me the next morning and said he wasn't sure from the photo but to bring it in. When I brought it to him he said he would bridge the defect in the printed board but otherwise thought the board looked good. He asked me to use some fine sandpaper to clean up the contacts on the relay. Great service and he wouldn't even charge me. So anyway I took the relay home and used some 2000 grit on the contacts and reinstalled it. Hey presto windows are all good. I spent 2 days driving the car earlier this week with the fine weather and everything working as it should. Fingers crossed it stays that way.

This is the relay housing:


Before the repair:


After the repair: