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I contacted Mattias about setting up VEMS on my BMW 535 (E28) on which I has a twin turbo setup. More information here (in Swedish): http://www.535twinturbo.com/ I previously ran with SMT6 but that was just crap. '''Engine information''' * Mostly stock M30B35, a 3.5 litre 6 cylinder even-fire inline (not odd-fire V6) engine with ~210 hp N/A with stock engine management * 2 x Garret T3 from Saab NG900/OG93 * Custom exhaust manifolds * 2 x EGT K-type thermocouples in the collectors * 6 x 380 cc/min high impedance injectors * Single coil and distributor (for initial setup, direct-fire setup might come later) '''Trigger setup''' The stock reference and speed sensor are not useable with VEMS as far as I know, these are mounted at the back of the engine. One measure engine speed through 360 teeth, the other syncs with the engine once every revolution. So it's kind of like a missing tooth setup - only it isn't. The solution that will be used: Three M8 bolts will be fastened to the harmonic dampener at the front of the engine, 120 degrees apart with 8 mm protrusion. A Honeywell GT1 Hall sensor will be used to sense these. '''Assembled v3.2 controller wishes''' * '''both primary and secondary trigger inputs should be of HALL type'''. * MPX4250AP 255kPa MAP sensor mounted onboard, with frontplate mounted pneumatic connector. * Serial RS232 and LCD through front endplate. * PS2 through EC18 * 2 x AD597 chips (normally they have to be added to the order and mounting is free ** 2 x compensational cables through the frontplate, flying loom style ** 2 x K-type female chassis connectors (mounted by me)
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