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Thread: Difference in e.c.u. and engine management

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  1. #1
    Certified Gearhead M!SSBOSS's Avatar
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    Quote Originally Posted by speedminded
    EMS-Pro is just a pretty Megasquirt. And old at that. I'm pretty sure its based off MS1, 2 is out.

    And I don't think anyone really made the OP understand what he was asking. I may be mistaken.

    But EVERY car has an ECU. Well.. Fuel Injected anyways.

    ECU's are stock. They come from the factory setup for your stock setups, nothing more. Some can be tuned, with settings being able to be changed on a stock ECU to allow for more timing, larger injectors, etc.

    ECU Stands for Engine Control Unit.

    Motec, AEM, PowerFC, MAP ECU, etc, are ALL ECU's. But they are user programmable, so you can use them with your modified engines, to allow full control over your motor.

    So before I get in over my head, every car has an ECU. Engine Management is something you can tune. Basically.

    Tyler @ KSP

    *Edit* Haha, still on Carina's name. Ooops.

  2. #2
    www.jasontbarker.com speedminded's Avatar
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    Quote Originally Posted by M!SSBOSS
    EMS-Pro is just a pretty Megasquirt. And old at that. I'm pretty sure its based off MS1, 2 is out.

    And I don't think anyone really made the OP understand what he was asking. I may be mistaken.

    But EVERY car has an ECU. Well.. Fuel Injected anyways.

    ECU's are stock. They come from the factory setup for your stock setups, nothing more. Some can be tuned, with settings being able to be changed on a stock ECU to allow for more timing, larger injectors, etc.

    ECU Stands for Engine Control Unit.

    Motec, AEM, PowerFC, MAP ECU, etc, are ALL ECU's. But they are user programmable, so you can use them with your modified engines, to allow full control over your motor.

    So before I get in over my head, every car has an ECU. Engine Management is something you can tune. Basically.

    Tyler @ KSP

    *Edit* Haha, still on Carina's name. Ooops.
    Don't forget about a piggyback on a stock ECU. I'm not a huge fan but there are plenty of cases where they work well enough to get the job done.

    I got more interested in Megasquirt's (hence the MS in eMS-Pro ) capabilities after having dinner with the founders, software engineers, programmers, etc. The eMS-Pro is indeed the MS1 chip but with the MegaSquirt 'n Spark/Extra firmware adding boost control, nitrous, fan control, programmable outputs, water injection...which I think is standard on MS1 now so the eMS-Pro is nothing more than a pretty box and better connectors. Upgrading to MSII is only $60-100 more and I'm not sure the latest status on v3 but it's probably what I'm going with...

  3. #3
    IA MEMBER Killswitch Performance's Avatar
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    Quote Originally Posted by speedminded
    Don't forget about a piggyback on a stock ECU. I'm not a huge fan but there are plenty of cases where they work well enough to get the job done.

    I got more interested in Megasquirt's (hence the MS in eMS-Pro ) capabilities after having dinner with the founders, software engineers, programmers, etc. The eMS-Pro is indeed the MS1 chip but with the MegaSquirt 'n Spark/Extra firmware adding boost control, nitrous, fan control, programmable outputs, water injection...which I think is standard on MS1 now so the eMS-Pro is nothing more than a pretty box and better connectors. Upgrading to MSII is only $60-100 more and I'm not sure the latest status on v3 but it's probably what I'm going with...
    Oh sure, Piggybacks are great for many occasions. There is a reason SAFC's and VAFC's are everywhere!

    Yep, I think its cool the DIY guys are local. Makes getting parts easy. We got a MSII Setup a while ago for one of our cars, but I just havn't had the time to wire it up. I really would like to try it out though, seems like a good system, just something new for me to have to learn. My brain isn't that big! Haha.

    The ONLY thing I don't like, is it doesn't use the stock CAS. Just a downside to me..

    Tyler @ KSP

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    www.jasontbarker.com speedminded's Avatar
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    Quote Originally Posted by Killswitch Performance
    The ONLY thing I don't like, is it doesn't use the stock CAS. Just a downside to me..

    Tyler @ KSP
    Wha...why not? You should be able to configure it...

    On a KA: http://www.freshalloy.com/forums/arc.../t-157236.html

    "I printed off a degree wheel and taped it to my crank pulley. I went back through the process of probing the CAS while manually turning the engine. I found that each 180* signal begins approximately 100* before the respective cylinder reaches TDC give or take about 2 degrees. So I figure we'd call it 100 even. I plugged that number into the trigger offset.

    I reset my VE map using values calculated for a N/A 2.4L using an online calculator. I then used a more scientific method for startup. I basically zeroed or cut way down every fuel parameter (required fuel, ASE, cold/hot cranking pulsewidths) and started from the top. I increased priming pulsewidths and then the cranking pulsewidths until it begun to fire. It tries to fire anywhere from 6ms and up. It gets better as it goes higher. I actually had good luck running it all the way up to 20ms, which is where it sits currently. It still does not run at that point, but once it is cranking good you can start to bring up the required fuel. I had it set up at 1 and increased it from there. I believe I ran this one up to 12. At that setting it started and sustained idle at around 1500rpms. I will also note that I have no idle control device at this point and idle is sustained with no throttle input from me. "

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