I'm going the standalone route personally. The computer module + Harness is ~$350 (Microsquirt ECU pre-assembled), and I'm using the fuel injectors, throttle body, and TPS off a CBR600. I need a temp sensor (you can modify the settings in the module to accept a cylinder head temp sensor instead of coolant temp) and a fuel pump; going to see if the in-tank unit from the CBR600 will work. It looks small enough, and draws (obviously) from the bottom of the tank. If the CBR fuel pump works, it has an integral pressure regulator so I won't need to put one on the fuel rail.
O2 sensors (3-wire heated) are ~$60 apiece, $25 if you want single wire unheated. They don't have to be motorcycle specific, the mass of the common sensor is coming down significantly and they all have common threads. You can buy weld-in steel or stainless steel bungs for ~$15 apiece. I intend to run two of them, and put them on the top side of the merging of each pair of pipes, just before the crossover pipe. They should stay hot enough there, and the heaters in them will help. Microsquirt will allow for ignition control as well using stock coils in their stock "wasted spark" mode, and if I'm not mistaken has a provision for the type of pulse generator typically used on motorcycle CDI units; if not, I can simply leave the CDI box alone or figure out how to fit a common trigger wheel on the same spot. So yeah, it's a bit expensive in the end run, probably ~$650 or so by the time it's all said and done. There are those who will tell me it's not worth it, but I look at this the same way that some people look at their (ugh) bobber projects: it's my bike, my customization. I feel a little better about mine knowing that the customizing job I will be doing will require no frame cutting, chopping, frame mutilation or gross spindling of parts, and if the buyer (should I sell) wanted they could easily swap right back to stock. I've done this to two cars before, going from mechanical FI (CIS-E) and old early EFI (DIGIFANT) to megasquirt based systems, they're fairly simple. -Kurt On Fri, Jun 8, 2012 at 7:36 PM, Allen Thomas <althomas...@gmail.com> wrote: > ** > Well I looked into it using parts from a CBR and that was a mess, since > the computer, dash, spark, O2 sensors, exhaust valve selonoid, etc are all > a part of the equation. A stand alone unit would be sweet but costly. > > -- You received this message because you are subscribed to the Google Groups "Nighthawk Motorcycle Lovers!" group. To post to this group, send email to nighthawk_lovers@googlegroups.com. To unsubscribe from this group, send email to nighthawk_lovers+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/nighthawk_lovers?hl=en.
