We all know by now that the FiTech system is out and about with the 600hp power adder version costing around $1300. Holley Sniper efi is the only competition I've seen thus far with similar capabilities but no apparent ship date. I also can't get a straight answer from their reps/techs regarding e85 capability. -___-
This has given me enough time to think about a more capable DIY solution that acts similarly.
I've been after one of these TBI setups because I have a weiand 174 roots blower that won't accept MPFI and the rest of the car is setup for carb instead of the factory ford FI. Since I'm stuck using a carb style system, but don't want to run a carb, I was interested in these TBI's.
WHAT IF: Instead of using one of these all-in-one packages, I just used a 4150 size throttle body with internal TPS, IAC, MAP, IAT, and body-mounted injectors (FAST makes one and I'm sure other companies as well), then ran it with a standalone ecu like microsquirt?
It could control ignition timing, there would only be like 4 injectors to play with and they don't require sequencing or staging, and it has all of the sensors in the same vicinity to make wiring a breeze. This option could potentially cost less than the Holley or FiTech setups but still give us all that standalone capability, and handle e85 for sure, with a simple wideband. Could be used for blow-through or draw through, or NA.
This has likely already been done so does anybody know of any pros or cons here? Maybe references to builds that are utilizing this idea already?