Megasquirt? What's the Situation?

[rkreigh]

Originally Posted by spork2367

I think maybe you're misunderstanding my post. The ms3pro is fantastic and supports the things you listed. You just don't gain enough removing the DIS to make it worthwhile, even with the ms3pro. Unless you're planning on building a flat plane crank hill climber..., anything more than the ms3pro is lipstick on a pig. The basic architecture and limitations of the engine just don't warrant a 4-10k custom ecu.

I run the manufacturing engineering department in a facility that designs and builds our own engines. From air cooled horizontally opposed carbureted engines to mechanical fuel injected engines, to liquid cooled 4 cylinder direct injection diesel engines to 2 stroke multi-fuel single cylinder drone engines, to our certified TEO-540-C1A electronically controlled engines with an ECU that rivals the cost of your ZR-1. I understand exactly what you can do with expensive ECUs from arguably some of the worlds best ECU manufacturers.

dayuum, I'm sorry, didn't mean to come across too nasty. I'm trying to prep the car for a twin turbo setup and the MS3 pro will work. secret I believe is to keep the stocker ecm, and just take away the engine management functions cutting into the wiring like we do on the c5


it's not trivial, but the MS3pro with a standar wiring harness starts around 1300 so it's not super expensive.


For my "use case" I have a Haltech platinum s2000 ecm with dual wb and 8 channel egt that actually would be a better candidate, and fully capable of running the engine, drive 8 coils, and do everything I need. Plus it's paid for.



Soooo what I really need is someone who undertands the wiring like the back of their hand. The tech support from Haltech is fantastic and they provide exactly how to "cut it in" and piggy back the haltech along side the factory ecm


but with the new gauge packages, and things available, not really sure I care about any of the stocker gauges. The virtual stuff when setup right provides all critical engine info at a glance along with logging and playback functions.



very cool stuff. see the new haltech nexus. they are doing some pretty innovative stuff with the can bus and power management now.


my old haltech also has an amp driver box so I can control the alchy injection pump. I'm looking to stuff some alchy shots down the old gals throat and do dual fuel. pump gas for most off boost and alchy for everything above say around 4 psi or so.


Might not do intercooling as the alchy does a good job of that and it saves some hassle and plumbing.


So here's a relatively "easy" experiment that I'm wanting to try.


Leave the stock ecm dis and all that stuff "as is" with a custom tune and "layer in the sweetness" of another set of injectors running e85 served up by a hobbs switch triggering the other dedicated ecm to come online


both tunes will have to be manipulated together but it's essentially just an (AIC - additional injector controller) which is pretty easy to do with a custom intake.


So I'm looking to take a baby step toward the twin turbo with the right octane fuel to feed the beast and not be quite so complicated to lash up.


the two computers don't know about each other so the stock driveability and ignition control isn't impacted at all.


and when the boost comes on, a stiff drink is served up.



I'd never cut up my bifurcation intake that lpe did for me (maybe it was graham!!_) but it can be done pretty easy with a high rise hood and my hood needs to go on a diet (got a big scratch on it too@)


just musing a bit, maybe graham will chime in on tuning the TT with the Linc AIC setup As I recall they let the stock ecm control the primary (like in key off mode) and had the link do the squirts on the big side with a larger injector


smart man that graham might be time to dust off some of that wisdom


the integration is SOOOO much easier and the functionality is what I'm after the dual wb and egts to help trim each cyl and give it what it wants and needs


can't do that with a stocker ecm


and you guys are right, the DIS panic is over rated, they don't fail often


Only dis issue I had was with my old "wolf" 93 LPE 475 car, it had upgraded rods, pistons with the stocker liners and was a joy to drive


that car had to sit outside and the dis would code and complain and the car would run like crap until it warmed up


if I kept in the garage it never had the issue It was just hating the other 2 Zs that I had at the time that were the garage queens


ohhh to go back to those days when 3 Zs were mine!! I took 2 of them out and "racing against my own car" with my buddy driving. DRM vs 95 with 4.10s and headers


dead heat with the win going to the best bulb We hot lapped those cars until we got too tired to make any more runs