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Megasquirt II users opinions by timgray
Started on: 09-23-2007 07:28 PM
Replies: 6
Last post by: Fiero Brick on 09-24-2007 01:48 PM
timgray
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Report this Post09-23-2007 07:28 PM Click Here to See the Profile for timgrayClick Here to visit timgray's HomePageClick Here to Email timgraySend a Private Message to timgrayDirect Link to This Post
I was wondering how many of you are running a megasquirt II in your fiero and how you like it. is it responsive and give you all you need for control to make you car run the way you want it to run?

For as cheap as they are and the significant increase in capabilities over even a modern GM ECM it's a heck of a deal.

I am leaning towards the II as it covers all engine management operations . heck adding the relay board it can control everything for the engine including the fuel pump, fans, even a boost controller in boosted applications.

any comments or ideas?
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The Mad Scientist
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Report this Post09-23-2007 07:49 PM Click Here to See the Profile for The Mad ScientistClick Here to Email The Mad ScientistSend a Private Message to The Mad ScientistDirect Link to This Post
doesnt it burn everything out faster???
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Hudini
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Report this Post09-23-2007 09:30 PM Click Here to See the Profile for HudiniClick Here to Email HudiniSend a Private Message to HudiniDirect Link to This Post
I did allot of research on MS before deciding on the 7730. I'm not aware of any significant increase in capabilities over modern ECM's. What I did like was the ability to tune it with easy to use software without the need to buy a dedicated chip burner and tuning software. In this regard the price becomes about equal. What did you find better about the MS?
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Fosgatecavy98
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Report this Post09-23-2007 10:59 PM Click Here to See the Profile for Fosgatecavy98Send a Private Message to Fosgatecavy98Direct Link to This Post
I use it to run my ecotec, works sweet! You need a WB-02 and a knock sensor for sure tho. W/O those 2 things you will break an engine, I did . And wihtout a WB you cant do much.
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darkhorizon
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Report this Post09-24-2007 02:11 AM Click Here to See the Profile for darkhorizonSend a Private Message to darkhorizonDirect Link to This Post
are megasquirt knock sensors as accurate as a stock GM sensor setup would be? Can you read miss fires?
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timgray
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Report this Post09-24-2007 08:20 AM Click Here to See the Profile for timgrayClick Here to visit timgray's HomePageClick Here to Email timgraySend a Private Message to timgrayDirect Link to This Post
It looks like the MS-II has way more processing power as well as bigger tables to work with. The biggest thing I'm looking at is the CAN bus support so adding a 4t60E actually becomes an option by getting the tranny and the tranny's control box, reading their forums it sounds like some are having success with interfacing to some of the canbus modules in the newer cars.

also it's set up out of the box for boost up to 20PSI ready for knock, etc... Granted the 7730 can be as well, but I am having aa devil of a time finding a 7730 with a $88 prom and memcal at a reasonable price, so I have been looking at other options. It looks like they even give you a base 2 bar maps to start with.

I hate that it's still a batch fire on the injectors though. why cant they give you 6 injector fire lines so that you can have each injector fire when needed instead of firing and leaving a puddle in the intake every other stroke.

From what I read the MS knock sensor is a GM knock sensor.

[This message has been edited by timgray (edited 09-24-2007).]

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Fiero Brick
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Report this Post09-24-2007 01:48 PM Click Here to See the Profile for Fiero BrickSend a Private Message to Fiero BrickDirect Link to This Post
VEMS (http://www.vems.hu) offers sequential injection for up to 8 cylinder vehicles, and can even handle coil on plug (non-wasted spark) ignition. It's EGT, wideband, and knock sensor ready as well. That said, the website pretty much admits that it isn't as user-friendly as megasquirt yet.

An aftermarket computer that isn't struggling to function as well as a 15-year-old obd1 box makes me drool.
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