MembersPage/GergelyLezsak/ETwentyOne (2007-07-09 15:23:18)

BMW 3 series E21 Turbo

2007.07.09

Car is started yesterday with firmware 1.1.18, no tuning yet.

Questions:


OLD STUFF

Project goals

- 300+ peak BHP

- reasonable daily driver

General hardware

- M10B20 (2000ccm) 4cyl 8v engine

- T3/T4 hybrid turbo, external wastegate

- big FMIC

ECU-related hardware

- custom 60-2 trigger wheel setup with VR sensor, missing tooth is 120 degrees BTDC (copied from M40 engine, the source of the wheel)

- 72lbs low imp injectors

- later motronic IAC valve instead of old mechanical one

- big throttle body with TPS potmeter. (from M50 2.5 24V)

- webshop IAT install with epoxy

- Ignition coil block from later M44 engines. see MembersPage/GergelyLezsak/MFortyFourIgnition

- EGT sensor bung in cyl4 exhaust runner

- WBO2 sensor bung in exhaust after turbo

Buylist

4 x Power-resistor (6R8,50W) = 5888HUF

1 x EconoSeal36-Wire side () = 4195HUF

2 x Sealed sensor connector () = 2984HUF

pincount 2

Sex pair

1 x K-thermocouple connector (K) = 3190HUF

mounting-style flying loom

Sex pair

1 x Wideband connector () = 2186HUF

With wire without wires

1 x Wideband O2 sensor (LSU4) = 19519HUF

1 x EGT sensor (K-type) (2x90mm) = 16249HUF

Size 6mm

1 x LCD4x20 (LCD4x20) = 5949HUF

Color green

1 x Econoseal18-Wire side () = 2487HUF

1 x Assembled v3.3 controller (v3.3) = 142353HUF

ignition driver 6+2

secondary_trigger HALL

primary_trigger VR

PowerFlyback no

mounting-style no-screws

MAP connection 400kPa onboard (6/4mm pneumatic)

Knock and EGT yes

LCD and PS2 yes

1-wire interface no