Audi 1993 UrS4 with AAN 20V Turbo Engine
Modifications:
- 2.2L I5 AAN, with 8.6:1 Compression Metal Gasket
- ARP Head Studs
- Stock or 7A Exhaust & Intake Cams
- GT3076R 0.63 or 0.82 A/R Turbo (4" anti-surge inlet)
- (N75, or Manual Boost Controller in parallel)
- RS2 or Tubular-T3 Exhaust Manifold
- Tial 42mm Wastegate or Stock WasteGate (with MTM WG Spring +3 Turns)
- Q: Do you have D data (N/m) for the spring ?
- A: Nope
- 60lb Siemens injectors
- delivers 630 cc/min at 4bar
- Bosch 044 Fuel Pump w/Relay Mod to get +12V on a direct hardline
- Adj Fuel Pressure Regulator set at 4Bar
- Stock or 70mm Throttle Body
- Phenolic Intake Manifold Spacer
- Custom Front Mount InterCooler BBE-Coated
- Forge BOV or Hyperboost BPV
- APR Snub Mount
- Stasis 6spd hardened 01E Tranny
- Apikol Short Shift + Bilzcat Short-Shifter
- Custom Power Steering Cooler
- Custom Oil Cooler
- Electric Fan
- Custom Cold-Air Intake
- H&R Sports Springs with Adj. Koni's Shocks +540
- Stoptech 332x32 Front Brakes, Slotted Rear Brakes, SS Brake lines
Goals:
- 2Bar Boost on 91 Octane (Mon+Ron)/2 3000 thru 6700 rpm
- Run 91 or 100 Octane
- A nice stable Idle ~900rpm, even in Summer when A/C cuts in/out. Without having to resort to a ridiculously high idle all the time.
VEMS Requests:
- Add support for Bosch LSU4 Wideband O2 sensor (Stock O2 Sensor is unsuitable for DIY tuning, it would be too much risk)
- mcp3208 analog input on the SSC6 feemale to allow selecting Fueling/Timing MAPs for 91 Oct or 100 Oct, via a dashboard switch
OK, this makes it clear. Will be a standard AAN box (with 5 logiclevel ignition outputs assuming the factory power output stages are kept), like the AAN at the bottom of MembersPage/TeppoKalske
WBO2 on SSC5 male standard - applies to audi AAN and 3B (also to BMW):
- pin1 nernst,WBO2 pin 1
- pin2 WBO2 pin 3 (use a 5A fuse from +12V supply wire)
- pin3 heater(-),WBO2 pin 4
- pin4 pump(-),WBO2 pin 5
- pin5 pump(+),WBO2 pin 6
AAN ECU extra connector pins:
SSC6 feemale
- pin1 mcp3208 pin6,ch5 analog input
- pin2 mcp3208 pin7,ch6 analog input
- pin3 mcp3208 pin8,ch7 analog input
- pin4 EC36 pin 34 (power out)
- pin5 EC36 pin 36 (power out)
- pin6 GND
Analog inputs are useful for
- ALS input
- Launch input
- shiftcut
- table selection, eg for 91 Octane / 100 Octane map selection