UrS4 2.2T Avant project

[priba]

ooops - too much dirty words

[Thuppu]

Propably too much pressure in the tyres... Got info that cold pressure should be something like 1.5bar, hot 2bar. I had medium temp pressure 2.5bar.

[Thuppu]

A couple of nice snapshots from our official Audifinns gallery.

[hunker7]

I hope you don't mind. Some stunning shots, and car of course.

[Thuppu]

Tried 1/4 mile today, for first time ever. Best was time 12.077 s.

60 feet 1.903 s
330 feet 5.246 s 120.701 km/h
660 feet 7.930 s 156.079 km/h
1000 feet 10.175 s 174.929 km/h
1320 feet 12.077 s 189.319 km/h


Fun part was to smoke all opponents, american muscle cars etc.

[maiks]

Nice results

[mushasho!]

Lower the pressure in your tires to avoid wheelspin... i use about 22psi and it allows me to cut consistent 1.7 second 60ft with half the power you're making.... this should be a deep 11 second car with that ~117mph trap speed...

Sent from my SM-G925P using Tapatalk

[Thuppu]

Yes. Wheelspin was great espeacilly with first gear. Tyres are brand new "made in singapore" Gerutti LPR 728 235/35R19. Cheapest one I could find.

[AndyP]

You thought about water/meth injection to control inlet temperatures?

[diesel des]

Thomas you need some good tires my friend lol

[Thuppu]

You thought about water/meth injection to control inlet temperatures?

Well, I have some plans... Don't know if I will go with the radiator in trunk way or not. It would let room for a big size cooler though. Water/meth inj. could be nice, but I don't know yet...

[Thuppu]

Weekend trackday, part wet track, was quite fun, no slicks, no fast laps, just fun.

https://www.youtube.com/watch?v=aFLQvYRdTK4

Ended up with a N/A engine at the end of the day. No boost at all, really nice to drive home, it isn't directly fast without overpressure. Will take it apart soon, I suspect the big valve has loose the flap... and you know... parts in the turbo doesn't mean good.

[Thuppu]

Ok, good news. Only the flap had fall off. But it's so big so it can't go up to the turbo comp wheel. Luckily no bolt hadn get loose either, only the small washers had been eaten thru. Why the turbo didn't start to rise the boost was because my dump valve is so loose theat low boost escaped thru it. And of course I didn't test any big rpm's/high boost because something was broken. 1.6 bar has leave the mark on the flap, I was quite suprised of this.

[AndyP]

[/IMG]

Was that flat before????

Time to make a new one from Ramor 500

[Thuppu]

Yes it was. Haha, this was 650 MC so not so soft either. I will try to make a totally new design valve, now when I have a lathe.