Having seen MembersPage/NanassyPeter/CloneInstall it became apparent that it's possible to make something in 8000 Euro (at least in Hungary) that leaves most Ferraris, BMWs and factory Subarus standing at the starting line.
That 20VT (5 cyl, 20 valve turbo) engine is quite amazing
- intake and block are very good, for near 400..450 HP, with good supply of aftermarket pistons and rods if one wants more
- factory turbo is restrictive unless one settles for 250..270 HP
- factory exhaust manifold is a joke. The first thing most tuners will do is to install a new exhaust manifold, with a bigger turbo
- the drivetrain (gearbox, differentials and other pieces) of the audis that came with this engine is very durable, this makes it a low-budget option to make a high performance car
- though they understeer, which can be helped somewhat with right suspension, but some understeer will remain.
We purchased a
- street-legal Audi 200 quattro turbo (paper says 1400 kg without driver and fuel: a bit heavy, but not insanely)
- with 3B (20V 5 cyl turbo) engine.
We understand the potential in these engines and want to support tuners around the world who chose this engine.
The most important target of this install is to get the InputTrigger/AudiTrigger install procedure as simple, painless and reproducible as possible
- doc improvements
- v3.x assembled with 55pin motronic for PNP install (reusing the MAF and NBO2 wires for the WBO2), possibly min 2 versions:
- 1 coil harness
- 5 coil harness
- not sure if the K-jet harness is easy to support at all
- perhaps with firmware and logging mods / suggestions, to help finding and fixing trigger issues
Near-future plans with this install
- 20VT - 5 cyl 4 valve, turbo
- 4WD - leave as is ;-)
- leave factory intake for now
- DROPPED idea: after the throttle, the ends of 5 pipes arranged in a circle around a cone, in the firing order of course (tube from charge cooler to throttle might need to go around the radiator, not a big problem)
- CHOSEN: factory intake is good enough for us
- get a working bottom-end
- engine management VEMS
Exhaust and turbo
- to complete the install ASAP, we might stick to the factory turbo. 220 HP in factory install, max 250 .. 270 HP with raised boost:
- unfortunately the factory exhaust manifold is a joke, but we can swap that later
Later
- bigger injectors
- new exhaust manifold and turbo (K26 / K27 hybrid?)
- possibly water injection
You can find some pictures under [files], including
- old engine with cyl1 wall knocked out by rod; cyl1 rod shrinked 10mm !!
Links
- [Audi 200 specs]
- this engine does not seem to have cruisecontrol capability (huge "idle-valve" or throttle actuator)
- [Repair manual] - awesome resource
- http://en.wikipedia.org/wiki/Audi_100
- [ self-documentation wiki] original selbst-doku.de is German, and the English is just a babelfish auto-translation (not recommended to edit the English)