07-27-2010, 05:30 PM
Join Date: Jun 2010
Total Cats: 0
Megasquirt questions. Choosing the right flavor.
Hey everyone! Just some quick questions regarding selecting a flavor of MS for me.
94 1.8L in a 90 shell, running on a 1.6L ECU with 1.8L injectors and an RX7 AFM. Sucks. Big Time.
Throttle response is pitiful at low rpm - I chalk this up to no TPS / batch injection. ECU can't hope to respond to rapid throttle change.
Plans are to ultimately build a CSP engine, probably a VVT engine. Not concerned with controlling VVT at the moment though. I'll probably want to be running sequential injection, and I have a 94 throttle body with a linear TPS I'll be using.
As for my level of experience, I've owned two turbo Hondas and tuned many more on Crome, and even Uberdata back in the day for any familiar.
I also have a Master's in Electrical Engineering, though my focus is more on the side of programming / microcontroller design than actual electronics work.
I've socketed at least a hundred Honda ECUs, so my soldering skills are above average at least. I would definitely be comfortable putting together a full 3.0 board if that was the best option.
That said, trying to decide which MS flavor is the best bet right now. I'm leaning towards a DIYPNP, because it looks like it is the simplest out of the box - all the MS2 / 3.0 board kits seem to need a lot of extra hacking / jumpering to work with the Miata. I'm comfortable doing this, but it just seems like it's all there already in the DIYPNP.