Audi 90 quattro with 2.5 TDI and 6-speed, plan B

ralleyquattro · Post by **ralleyquattro** » Tue Sep 06, 2011 7:09 am

Thank you for the info, I will check my cable now!

Cheers

wilke_jb · Post by **wilke_jb** » Tue Sep 06, 2011 7:15 am

Hope it works! Check all four pins - I think both of my connectors were backwards, but you could have just 2 switched? Also, I was going to cut the adaptor up and fix it correctly, but I found it easier to just remember to switch them upside down, as mine was molded and no way to effectively cut it to change the pinout. Good luck.

ralleyquattro · Post by **ralleyquattro** » Tue Sep 06, 2011 7:26 am

Just checked, all 4 pins correspond correctly.

wilke_jb · Post by **wilke_jb** » Tue Sep 06, 2011 9:15 am

Sorry, worth a try I guess. Have you checked for B+ and ground on the car side black connector?

smirre · Post by **smirre** » Tue Sep 06, 2011 10:27 am

Them old ecu's can sometimes be hard to communite with. My brothers a100 tdi AAT is impossible for me to get in to. My a6 tdi AEL is no problem.
Someone whispered that old vag-com interfaces actually could talk to theese ecu's.

But I still hope you go for a gtb2260vk, some mean nozzles and with a ecu from what you north americans call eurovan instead

PRY4SNO · Post by **PRY4SNO** » Tue Sep 06, 2011 3:18 pm

Just noticed this thread, so much win!

Great reading through your progress, quite remarkable how well/quickly everything all came together! Congrats on another awesome car in the stable, you're getting quite a collection built up. *props

ralleyquattro · Post by **ralleyquattro** » Tue Sep 06, 2011 3:20 pm

Thanks!

Wizard-of-OD · Post by **Wizard-of-OD** » Sat Sep 10, 2011 6:20 pm

How did I miss this thread? Love it! :woowoo:

ktownboostn · Post by **ktownboostn** » Sun Sep 11, 2011 1:09 pm

Wrong thread... but That is one nice Urquattro you have Martin ! It was great meeting you today at the Berlin Klassik !

ralleyquattro · Post by **ralleyquattro** » Sun Sep 11, 2011 2:40 pm

Thanks a lot! It was nice to meet up. Wish I could drive two cars at once, I would have brought the TDI as well.
I'll have to wait till my kids can drive them and enlist them for the service..

Cheers

ktownboostn · Post by **ktownboostn** » Sun Sep 11, 2011 3:37 pm

Ya i would have loved to see the Tdi ! I'm sure the kids would be more then happy to drive one of your cars when they can !

ralleyquattro · Post by **ralleyquattro** » Tue Sep 20, 2011 11:59 am

Small update.
Second tank of diesel, still not fully timed yet, German post is taking it's time, but last half a tank was on the bumped timing by one tooth.
890km on 51L which makes it just over 5.7L/100km... bloody good if you ask me. Can't wait to see what it can do with proper timing and a chip

ChrisAudi80 · Post by **ChrisAudi80** » Tue Sep 20, 2011 5:01 pm

That kind of mileage just makes me cringe...in shame.

chaloux · Post by **chaloux** » Tue Sep 20, 2011 5:07 pm

Nice Martin! With the timing set properly you should see a bit more, and it should have a bit more "go". What size is the tank? The most I ever did in the bug was 1380km on 63L.

ralleyquattro · Post by **ralleyquattro** » Tue Sep 20, 2011 5:25 pm

It is a small tank compared to previous quattro versions, sadly only 63L or so.... nothing like 90L in the Ur..

80qtdi · Post by **80qtdi** » Tue Sep 20, 2011 5:55 pm

And a chip huh... Let the modifying begin

let me be the first to suggest a different set of nozzles, they will not affect the economy, but will give quite the boost in power. Hahaha

glibobbo21 · Post by **glibobbo21** » Wed Sep 21, 2011 1:17 pm

do you have access to a 1552 vagcom?... maybe that will talk to it

MJF · Post by **MJF** » Wed Sep 21, 2011 1:22 pm

Timing would be much accurate when adjusting with gauge, no need for vagcom.

ralleyquattro · Post by **ralleyquattro** » Wed Oct 12, 2011 9:06 am

Finally the tools have arrived and the motor is timed properly, with the tools it is very easy to time it.
Third tank of gas was as before 910km with 53L of diesel.
Now that it's aligned properly I am already at 310km and only 1/4 of a tank down!

Still waiting for the chip though.

Cheers

ChrisAudi80 · Post by **ChrisAudi80** » Wed Oct 12, 2011 8:06 pm

ralleyquattro wrote:Finally the tools have arrived and the motor is timed properly, with the tools it is very easy to time it.
Third tank of gas was as before 910km with 53L of diesel.
Now that it's aligned properly I am already at 310km and only 1/4 of a tank down!

Still waiting for the chip though.

Cheers

Impressive. A calculated 1200km+ on one tank...

ralleyquattro · Post by **ralleyquattro** » Thu Oct 13, 2011 2:46 am

MJF wrote:Timing would be much accurate when adjusting with gauge, no need for vagcom.

What number do you use?
Factory spec for 1T and ABP is .42mm

Brickyard spec is .55 and he recommends going as far as .7
http://www.brick-yard.co.uk/VehicleSpec ... Timing.htm
I found it a bit hard to start cold with .42 so I bumped it to .65 and it's a bit happier now.
These tools make adjusting a breeze.

Cheers

WOMBAT · Post by **WOMBAT** » Thu Oct 13, 2011 4:05 am

I'm jealous of your superior TDIness

elaw · Post by **elaw** » Thu Oct 13, 2011 10:22 am

ralleyquattro wrote:More progress:

Finished the downpipe and connected rest of the exhust, the ear section still needs to be welded, but it's tacked together for now.

Hey... that nice-looking 3-bolt flange there... the back half looks like an OE part but the front looks new. Do you know of a place to buy those things - as in, the flared pipe ends, donuts, and the flange - new?

I've been looking everywhere but can't find anyone selling that setup which I find pretty surprising. I know all the cool people are using v-bands, but I like the donut setup because it'll tolerate a little misalignment.

ralleyquattro · Post by **ralleyquattro** » Thu Oct 13, 2011 12:41 pm

I have a local shop that makes them for me.
I have a used one for sale with both ends flared and 3-bolt flange that is exactly the same length as a stock Ur-q CAT.

PM for details

elaw · Post by **elaw** » Thu Oct 13, 2011 2:22 pm

Well... what I'm actually trying to do is about the opposite of what you're doing - I'm *adding* a cat! And to make things even more fun, it's got 3" connections. The layout I'm thinking of is downpipe-cat-flex-reducer (to 2.5")-remainder of exhaust, and I think I'd like flanges between the downpipe and cat, and between the reducer and the rest of the exhaust.

Anyhow, didn't mean to hijack your thread! I want to read about how you tweaked the motor and are now getting 2000 miles to a tank of diesel. :-)

Audi 90 quattro with 2.5 TDI and 6-speed, plan B

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Re: B4 90 quattro with 2.5 TDI running better and better!!

Re: B4 90 quattro with 2.5 TDI running better and better!!

Re: B4 90 quattro with 2.5 TDI running better and better!!

Re: B4 90 quattro with 2.5 TDI running better and better!!

Re: B4 90 quattro with 2.5 TDI running better and better!!

Re: B4 90 quattro with 2.5 TDI running better and better!!

Re: B4 90 quattro with 2.5 TDI running better and better!!

Re: B4 90 quattro with 2.5 TDI running better and better!!

Re: B4 90 quattro with 2.5 TDI running better and better!!

Re: B4 90 quattro with 2.5 TDI running better and better!!

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Re: B4 90 quattro with 2.5 TDI running better and better!!

Re: B4 90 quattro with 2.5 TDI running better and better!!