Audi 90 quattro 20vt - 823hp 916nm

[Mecki]

Hello Guys,
I'm Peter from Austria and our club is Turbienen.at, maybe some of you have already heard of The engine was built be our member and forum-user Altmanis who will show you the results of 3.3l in a S2 in a few weeks

In the last year we built up a Audi 90 20v quattro for our member Andre and installed a complete S2 drivetrain in it and did some modifications of course:

Stock head
7A inlet cam, stock ABY exhaust cam
2.5l AEL engine block
AEL crankshaft
FCP x-shaft rods
82mm Wössner pistons
Upgraded Sachs Race clutch from a guy called Joe Krumpholz
Borgwarner EFR8374 turbo
Audi RS3 modified intake manifold
Audi RS3 electronic throttle body (with Golf 4 accelerator pedal)
Nuke injection rail
Bosch 1700ccm injectors
Aeromotive fuel regulator
Dash 8 fuel line
2x Pierburg E3L fuel pump
3" exhaust selfmade
Wagner Evo intercooler (bigger one coming soon)

Ecumaster EMU Black mapped by us, Turbienen.at
ABY adapter connector
FlexFuel sensor
Turbospeed sensor
Oil pressure sensor for fuel cut off in case of no oil pressure

We already dynoed the car and exceeded our goal of 700hp a little bit
Using 90% Bio-Ethanol (so like E85) and 3bar falling to 2.7bar at 7000rpm the car pushed 823hp and 916nm.



Here is the datalog, as you can see we pushed some parts pretty hard EGT1 is mounted in first cylinder, EGT2 in fifth cylinder. On the street the EFR8374 hits full boost at 4100rpm.


On the day before dyno, of course we broke something as you can see on the pics, 3.3bar was to much



Maybe you're interested in our projects then you can follow us on our fb-page with the URL: Turbienen.at There you can also find the video of the dyno run!

If you have any questions feel free to ask!

regards from Austria, Peter

[Thuppu]

Niiiice! That would propably be some kind of record with stock head, and impressive result for only ~63mm comp inducer turbo. 7A inlet cam, what about ex cam?

[Mecki]

Thanks
Ex cam is stock from ABY!

Internal wastegate of the EFR is a little bit too weak, we put two hose clamps around it to prevent it from opening completely at the dyno otherwise the boost would fall down to 2.4bar at 7000rpm which "only" produced 770hp.

[pilachgt]

This is monster

[jsol]

Great results. What compression ratio are you running?

[david1980]

nice to see people using efr turbo's on 5 cylinders

[altmanis]

Nice Post mecki

@jsol: 8,5:1

[blux]

Any overall picture of car? Engine and graph are already impressive

[simon20vq]

That's mega!! More picture if possible especially of engine build?

[Nuno_Cristiano]

Good project. More pictures please

[bivw]

Nice to see good results whit a efr on our 5pot engine,s
It hold good boost for a intern wastgate

Got almost the same setup into my 90 typ85
2.5l ael
Cnc golfball head (solid lifters,supertech valves) 11,5mm lift cams
1700cc bosch
Vems
Efr9180 t3 0.83ar

Tuesday it wil be mapt on ron102
See you at the worthersee [emoji6]

[Thuppu]

Damn

[jsol]

Nice Post mecki

@jsol: 8,5:1

I'm wanting to use the Emu ecu as well with a very similar setup though with a higher CR (10:1).

[butchone]

do you have any pictures of your ignition map?

[Mecki]

@bivw
wow very nice setup, good luck on the dyno
How long and at which date are you at worthersee? Do you map the ecu on your own?

The car needs new paintshop, after that I will post some more pictures. I hope I can find some old pictures from assembling the engine, most of the time we forget to take pictures^^

@butchone, yes I can send you. As you can see it was pretty brutal ignition, won't recommend that for track race for example because the thermal reserves are limited with 3bar boost But for spinning 4 wheels on street sometimes its perfect

regards Peter