AAN into Ur quattro, 400-450 Bhp Target

[Jamo]

Be careful as going to the next level now costs money, looking at the car it's setup for great drive-ability. Head porting and cam clocking would be next but personally if the car is running well leave well alone!

[URquattroGus]

It's probably churlish, but how do you think I could improve my torque figure? It achived 538nm, but I was expecting maybe closer to 600nm, is this unrealistic?

Also, what effects if any do you think head porting would have, would it reduce surge and produce a little more power?

I've only made it surge a couple of times when really leaning on it for a long time in a high gear.



In other news, I sucesfully did a 900 odd mile round trip to Le Mans and back for the race, and it all ran flawlessly, much to the surprise of my mates who were all making bets that I wouln't make it there because it's an "old" car

Had some fun on the way down, pulled a B7 RS4's trousers down off the payage, I think he was surprised to say the least. Also drove round some of the circuit after the race, which was fun!

[prj]

I am in process of mapping a 3071R car myself.
Humps on the graph mean fluctuations in boost, but if you want to map out the surge without hurting spool too much, that's how it is going to look.
I also just blew off an intercooler hose... at 27 PSI.

Also running Deka's on this car. Idles fine to the ear, but the wideband tells another story. Mixture is not totally stable between idle and different very low load situations.
This is because the injector is not linear at all anymore.

But closed loop takes care of it mostly.
I am still not happy with the injector, when EV14's are just so much better..

[Rocco]

congratulations with your results,you should be very happy ,sure¡

good turbo for 400/450hp

[URquattroGus]

I think the peak boost is just over 25 PSI, maybe a little more, I didn't really ask in much detail to be honest.

They didn't use the 1.9 Bar wastegate spring I took along, rather adjusted the existing spring slightly.

No issues with the Deka's that I can make out, idles just as before. Rpm I can't check atm but probaly between 750-950rpm, sounds almost exactly the same as before really.

Having said all this, I've only driven it home and parked it up. One boost hose developed a leak or popped of sligtly a few minutes away from home so going to check everything this weekend.

Think it's the Mikalor hose clamps we used, Doug replaced some before mapping when he leak tested it and said they weren't much cop.

Maybe they don't pinch the hose quite enough? and a google search seems to suggest they are prone to leaking, think they are more exhaust clamps really?

Clutch is a sachs uprated plate and organic disc. Drive shafts are the same but spaced on one side (I think, would have to ask Pete Berry)


Not sure what the humps in the graph signify? Didnt necessarily expect it to be perfectly smooth....

As for the interior, adding two cows worth of leather won't speed it up! extra weight and extra hassle, plus I want to keep it looking standard so the glorious 1984 tweed will remain

Anyway, Doug made a video of one of the Dyno runs;

http://www.youtube.com/user/dougatmrc#p/u/3/K8GoaQir2W0

[th.b.w.]

Hi, from 6000 to redline 1.75 is o.k. ,
but what boost it will be from 4500 - 6000 ..?

Thomas

[newsh]

Nice one! Did they say anything about the ripples in the curves?

[prj]

1.75 bar is enough for 440hp.
2 bar to redline with 3071R is too much... it gets inefficient.

[th.b.w.]

Hi, nice resultats.

What boost do you run from 4.500 - 6.000 U/min...???

I think it must be 1,95 - 2.0 bar to get 440HP with 3071 ....

Thomas

[ralleyquattro]

Very nice!
I have 3071 myself and hoping for same numbers.
Will be doing mine on VEMS though.

Just a wuick question, what driveshafts did you find to fit the 6-speed?
I see you still have the original Ur-q front struts.

Let me know.

Thank you

[salad.dodger]

wow, just WOW, fantastic car

[prj]

There will always be issues with dekas.
The question is - how noticeable

I have gotten them to idle decently and have decent fuel economy, but for example when you get them running well, at 800 rpm without load, they get a bit bad at 2000 rpm without load and vice versa, because the linearity error is very large.

Closed loop takes care of low load driving mostly though...

Perhaps I am too much of a perfectionist.

[Jamo]

No issues with the Deka injectors then?

[prj]

So, now it is time to work on the inside of your car

Here are some pics, of what can be achieved










Hehehe

[AndyP]

Great result What's your peak boost?