Hi Everyone, I am fitting my Audi 4.2l ABH v8 in my kitcar. The ecu I am using is a Megasquirt MS1 V3 using wasted spark and a 36-1 trigger wheel on the front pulley. I am using 2 ford coil packs. Has anyone done something similar? Does anyone know what the ignition advance settings are?
I have set the wasted spark pairs as: 1 - 6 5 - 3 4 - 7 8 - 2
The engine fires but backfires through the inlet manifold and out of the exhaust, so something is wrong. I have a great spark and fuel Any help would be awesome as I am going crazy trying to get this started! [image]http://s509.photobucket.com/albums/s334/nickt_v12/?action=view¤t=DSC_6603_zps93b66a05.jpg[/image]
Yes, I hope so, with wasted spark you fire 2 cylinders together. So you fire the cylinder on compression and exhaust together. I have set the advance at 10 degs btdc, but I have no idea if its right or what the fuelling should be set to.
Moin Nick, I think the firering order would fit, but what´s about the fuel injection? Normally the injektion valves are paired, maybe you have to switch them alone, that´s perhabs the problem. It can be also a timing problem of ignition and injection.
I'm firing the injectors in 2 batches, left and right bank. 4 squirts per cycle, so there is plenty of fuel. I need to know the ignition advance settings. I need to know someone who has put a Megasquirt on a V8 .
Hi - I know thise are a old post, but I hope you still read the forum. How are your prosject?
I have just converted a similar engine in my Audi 80 prosject,with microsquirt V3, simmilar to megasquirt 2. Using, Edis-8, ford coils, GM MAP / TPS / CTS / AIT and L-2 Inovate lamdasonde.
Have you or anyone else got a good running msq / fuel- and ignition tables to share?
Hi Petter, the project is fine. I have the engine running perfectly. the ABH is dead and I now have a 3.7 AEW, same engine just smaller. If you goto www.madmechanics,com, and contact me through the Zonda buildf story in the build forum I can send you the MSQ I am using.. The engine is really really sweet
For N/A I can give you some values from the original motronic. At WOT 6000RPM you have ~24°, in part load (low) ~33°. Idle at 10° works ok. For the beginning this should work.
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