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'''BMW 3 series E21 Turbo''' '''2007.07.16''' Car is started and barely tuned with firmware 1.1.18 Boost pressure is 1.2 bars. The whole ignition table is strange, car NEEDS very large values, e.g. 40 degrees at boost.. I suspect that timing is incorrect. - I have the same things on some cars that i've made, did't know why. Although the cars works good. But strange.-FERO (However I strobed it at idle and seemed correct to the mark) * What kind of engine did you experience with? This is a really low compression one (8 bars measured peak press.) However I'll double check first cyl. TDC to the mark... -I experienced it with audi TT 1.8T 20 valve engine, the engine is slightly modifyed with compression ratio 9:1. But maybe the guys did't measured the right CR. So I'm not sure. Questions: * With 6+2, 2+6, 4+4 IGN hw config ordered, which outputs are power-outputs? * IAC is one-coil PWM solenoid with preset spring but it seems that it CLOSES when IAC values raised. How to control this? * What can cause ignition advance over the table? I see 19 degrees when 14 is in the ign table (around idle).- It could caused by the ignition retard according to MAT.-FERO ** That's OK for retard. But it is advance over the table. Is it possible? ---- '''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
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