AAN into Ur quattro, 400-450 Bhp Target

[URquattroGus]

The shift linkage is a mix of parts. Ur s6 sihifter rod and mechanism complete, then the origional 016 cage mounted on top.

Sorry, not very helpfull, I haven't looked at it for a while, and most of all, I got Pete Berry at White Cottage quattros do this, as with most of the major work.

This thread shows how one person did it; ("ralleyquattro" on here?)

http://www.motorgeek.com/viewtopic.php?f=6&t=32078&start=150

[djh]

Another small but worthwhile mod this weekend, I chopped an inch off the top of the gear shifter and re threaded it.

The shifter seemed a little high to me, and the ur s6 rod is actually a bit loger than the old 016 shifter rod was.

Great improvement really as before I was finding the gearshift a bit too light and imprecise, its now a lot more positive, and particularly snappy when going down the gears, easier to rev match.

Small things that don't cost anything but make you smile

How have you done the linkage for your 6 speed?

[europeanme]

awesome thread angus.....and cracking vid at MRC.....

it's another car getting me fired up to get my engine sorted....

[URquattroGus]

Another small but worthwhile mod this weekend, I chopped an inch off the top of the gear shifter and re threaded it.

The shifter seemed a little high to me, and the ur s6 rod is actually a bit loger than the old 016 shifter rod was.

Great improvement really as before I was finding the gearshift a bit too light and imprecise, its now a lot more positive, and particularly snappy when going down the gears, easier to rev match.

Small things that don't cost anything but make you smile

[URquattroGus]

Brakes now consistent after fitting a new Brake Servo and re bleeding the brakes.

Also fitted an RS4 alacantara gearknob fir what it;s worth, goes nicely with my part alcantara wheel.

Need to take some of the intial pitch/roll out of it in the twisty stuff though.

Current Spec;

Koni Sport Adjustable Inserts
H&R Springs
Standard bushes all round fitted 2 years and approx 7000 miles ago.

Do people think I will see a difference by switching to PolyBushes???? (ARB, Wishbones, Diff mounts etc?)

Also, what about Solid Diff mounts and Sperical or something different for top mounts?


It grips well but there is a little too much pitching/yaw.

[A80Avant]

You are yet again ruining someone's thread. Just say you disagree and pm me for the details.

Sorry Gus

[prj]

we know that the 0.82ar does not surge on 3071 or 3076. hell of a lag though

I would not say full boost at 3700-3800 is "a lot of lag", which is what you get on a 3071R with a 0.82A/R housing.

then its likely that the lines on the dyno are surge. Looks excactly as what i had whenever anyone tried to get more DC on the N75 to get the turbo to spool faster. My curve was working much better when it was delayed and the DC was much less, but the car felt it had much more lag.
Once i changed to vems, it was much better and the surge was minimal, even by using the same N75 valve. Honestly, i never understood why that happened. 3 different people had a go on the motronic, none was succesfull(on my car). I guess it may have been the way the 2 ecu's dealt with the boost profile. I bet an electronic boost control would do something similar to vems, as that is what it's implemented in the ecu.

nice results nonetheless!!!

Please stop spreading misinformation.
Tuned three cars with 0.63 A/R 3071's now.
No surge when mapped properly. No problems with late spool. I guess your tuners have one or two things to learn about Motronic still.

I already said - key is not to request 2 bar boost all the time.
All your files you have sent me do exactly that - they request 2 bar below 4000 rpm, and then reduce duty cycle, so it hurts spool.
You need to key in boost profile to match actual no-surge profile in lower gears, and adjust duty very slightly (within adaptation limits), so that it's good in low gears and good in high gears. Not rocket science, but you do need to know how the system works, and not raise some maps in winols...

That won't probably say much, but the fact that 3 people were not able to map a 3071R on a 0.63 A/R housing correctly on this injection system, shows a failure on their part, and not a failure of the system.

In case of Agnus' car the dyno run was probably made in fourth, and I don't see anything really wrong with it. It probably won't have those fluctuations in third, and if you look at the scale of the graph, most of the fluctuations are within 50nm, except the last one (and there is 500nm torque), so the car probably feels pretty smooth on the road.
And the last one might not be due to boost flutter, but due to a timing map that is not completely smoothed out as well. You never know just from the dyno plot.

[A80Avant]

then its likely that the lines on the dyno are surge. Looks excactly as what i had whenever anyone tried to get more DC on the N75 to get the turbo to spool faster. My curve was working much better when it was delayed and the DC was much less, but the car felt it had much more lag.
Once i changed to vems, it was much better and the surge was minimal, even by using the same N75 valve. Honestly, i never understood why that happened. 3 different people had a go on the motronic, none was succesfull(on my car). I guess it may have been the way the 2 ecu's dealt with the boost profile. I bet an electronic boost control would do something similar to vems, as that is what it's implemented in the ecu.

nice results nonetheless!!!

[URquattroGus]

Its a 0.63AR Turbo. No slipping on the rollers as far as I know.

Tank is emptied by a unscrewing a bung at the bottom. Or plan B would be to use my vacuum powered fluid extractor.

[Thuppu]

New Catch tank; (1/3 of the weight of the old one, and it doesnt leak!) Looks a lot better to my eyes.

Nice tank , but how do you empty it?

[A80Avant]

i thought we were talking about the 0.63ar not the 0.82 as at the beginning of the thread it was mentioned of the 0.63. Judging by the power curve with having the initial high torque at 3500rpm, i believe its the 0.63ar that is being used. Also the fact that the power curve is not linear, may also mean if not slipping on the rollers, a bit of surge.

we know that the 0.82ar does not surge on 3071 or 3076. hell of a lag though

[prj]

the 600nm figure can come with more overboost but it will flutter on higher gears(surge). i had a little surge, but i didnt mind that much

It should not surge if it's making 440 hp. That means housing is big enough.
Richard's car had much fewer mods than this one (no fancy IC or IM etc, just stock RS2 engine) and it made 430/600 when mapped on the road. It also did not surge in any gear with 0.82 A/R hotside.
I ran it up to 28 PSI though, this car is running less boost, maybe a bit less peak timing, thus the torque difference.

An additional 3-4 PSI at peak torque should be good for 40-50nm on this, fuel quality and CR permitting.

[quattroamm]

Hi can you tell me what throttle cable you have used with the wagner inlet, cheers

[URquattroGus]

New Catch tank; (1/3 of the weight of the old one, and it doesnt leak!) Looks a lot better to my eyes.





A photo from Le Mans a few months ago.

[A80Avant]

the 600nm figure can come with more overboost but it will flutter on higher gears(surge). i had a little surge, but i didnt mind that much