You're probably right about the current draw being more important to 8 cyl folks. It might come into play with 6 cyl, though. I asked Matt at DIYAutoTune and his opinion was:

Quote
If you are using low impedance injectors, you *must* install the FET driver protection circuits.


I originally planned to use high impedance injectors because I found a direct fit in the size I wanted and they used the same electrical connectors as the OE ones (can use the OE harness).... but since I had already installed the PWM flyback circuit, I went ahead and installed the FET driver protection resistors.... so I can now switch to low impedance injectors without any issues.

Everything seems to be working fine on the ECU, but the stim lights don't work..... I've probably wired the LEDs bassackwards, so tomorrow I'll turn 'em around and see if they work.... probably have to get new ones from Radio Shack.

I still need to buy or make the harness, but before I can put everything together, I'll need to tear down the engine to see what it needs... sure wish I could find some stock aftermarket 8.0:1 pistons for the 12v heads.

Thanks for the brain food. <img src="/forums/images/graemlins/kewl.gif" alt="" />

Oh - in MS2 software, how do I expand the fuel and ignition tables to allow for pressure range above 100kpa? I see the table editor, but don't want to screw up the installed values until I have a better feel for what does what. I hate to wipe out those nice conservative N/A tables just yet, but it'll have to be done before I bring the blower on-line.

Frank


'89 [color:"white"]G-Raider[color:"white"] [color:"black"]Supercharged 3.0L, MegaSquirt 2, lockup A/T, 2.5" exhaust, 172k, Cibie H4s/Oscar SCs, Hella Micro DE fogs, Cobra CB, Superwinch hubs, LSD rear/Aussie Locker front, Bilsteins, Lifeline AGM, Rust-Oleum