Buick L67SC with MS3PRO

[TheStapler]

Ok, so I am putting the 3800SC motor from a Buick Regal GS into my 86 Fiero GT. I am selling my mustang 2.3T, but keeping my MS3pro, and thinking about using it in this swap

Does anyone have a good starting point with a base tune for the MS3pro? Has anyone used this on this motor?

[Matt Cramer]

My daily driver is a Regal GS - but I haven't gotten around to throwing any mods at it so far. The main piece of advice is to use the stock C3I ignition module. It should use the same settings we have listed for a Grand National in the MS3Pro Manual.

[TheStapler]

My daily driver is a Regal GS

So, when are you converting it over?

[TheStapler]

The main piece of advice is to use the stock C3I ignition module. It should use the same settings we have listed for a Grand National in the MS3Pro Manual.

Question though, what about igntion timing, and stuff like that?

[Matt Cramer]

The main piece of advice is to use the stock C3I ignition module. It should use the same settings we have listed for a Grand National in the MS3Pro Manual.

Question though, what about igntion timing, and stuff like that?

The MS3Pro sends a timing signal to the C3I module and the C3I module uses this to fire the coils.

[TheStapler]

Ok, this goes against all that I currently know/understand... LOL

This seems like it would be overkill for my application... and maybe a microsquirt would be better suited?

I am not planning on doing much with things, I want it as a daily summer driver, and an upgrade to the stock engine, but I don't want to really start messing with the factory harness in case I want to put it back to the stock 2.8V6, so that is why I was putting a standalone in, rather than reflash a stock ecu, and rewire things in the car. I am still researching, and trying to figure out the way to go about things.

Matt, as per my PM to you, you said that I could run a microsquirt, but would have to give up the IAC on the motor, but then you said it would work to swap to a VW 2 wire IAC.. Would this be a better idea for my set up?

again, thanks for everything!

[Matt Cramer]

If you're up for a little soldering, consider a DIYPNP. It plugs right into the 2.8's harness and already has the stepper IAC driver onboard.