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'''BMW E30 323 with M20B25''' ---- '''The engine''' * Inline 6 cylinder BMW M20B25, 2.5 litres, ignition order 153624. * Wastefire ignition with Ford EDIS wasted spark coils (stock 60-2 trigger wheel) * Sequential fuel injection with no cam sensor and low-Z 720 cc/min injectors * Custom engine harness '''The turbo system''' * PPF turbo manifold (pulse-split) * External wastegate 50 mm from Boström Turbo Teknik * 3.5" downpipe and exhaust system out through the (no muffler) * Dump valve by Simon Marmander * Custom large intercooler * Holset HX50 turbo ---- '''Ignition trouble solved''' Lessons learned * Use the right trigger settings for 60-2 wheel * Ground the generator properly * Use reliable fuse holders Basically it came down to bad electrical connections both at the generator and the fuse holders we used for the engines electrical system. Both of these will be fixed shortly and the engine run in properly. Then we will get to have some boost, the turbo sounded really easy to spool. The config and tables will be updated on this page, and documented properly given some free time. Here they are: [http://www.vems.hu/files/MembersPage/MattiasSandgren/PeppeBmw/config.txt config.txt] and [http://www.vems.hu/files/MembersPage/MattiasSandgren/PeppeBmw/tables.txt tables.txt] Bear in mind that fuel has not been set properly, including afterstart and other enrichments. ---- '''Some pictures of the car and engine''' [http://savarturbo.se/stuff/images/peppe_e30_tic/185.jpg http://savarturbo.se/stuff/images/peppe_e30_tic/tn/185.jpg] [http://savarturbo.se/stuff/images/peppe_e30_tic/186.jpg http://savarturbo.se/stuff/images/peppe_e30_tic/tn/186.jpg] [http://savarturbo.se/stuff/images/peppe_e30_tic/187.jpg http://savarturbo.se/stuff/images/peppe_e30_tic/tn/187.jpg] [http://savarturbo.se/stuff/images/peppe_e30_tic/188.jpg http://savarturbo.se/stuff/images/peppe_e30_tic/tn/188.jpg] [http://savarturbo.se/stuff/images/peppe_e30_tic/189.jpg http://savarturbo.se/stuff/images/peppe_e30_tic/tn/189.jpg] [http://savarturbo.se/stuff/images/peppe_e30_tic/harness_build_1.jpg http://savarturbo.se/stuff/images/peppe_e30_tic/tn/harness_build_1.jpg] ---- '''History''' I'm helping a local guy with installing a Genboard on a M20B25 BMW '''inline 6 cyl''' engine with Bosch L-jetronic electronics and intake and distributor ignition. The M20B25 originally doesn't come in this configuration (Motronic only) but a previous owner swapped out the block and head of the 323 for 2.5 litre parts and retained the electronics and intake (very stupid, engine ran lean on too small injectors). The stock harness will be cut-up and partly re-used and directly wired to EC connectors - a lesson learned from a previous BMW 728 project with similar electronics, meaning the stock L-jetronic connector and box will not be used. ---- *WikiAdvert: mailto:mattias.sandgren@savarturbo.se
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