Megasquirt

RichyVRLimited · Sep 17, 2006

I don't frequent this board as much as I should really, but I've just finished installing a MegaSquirt DIY ECU to my NA Roadster. not really sure it's JDM either :?

I've done a build log on the UK MX5nutz forum incase anyone wants to see it!

http://www.mx5nutz.com/forum/index.php?showtopic=17029

enjoy!

Caldera · Sep 17, 2006

Oh i'm gonna have some questions for you.

I'm goign to be going full standalone with mine, but I'm buying mine prebuilt from RSAutosport.

RichyVRLimited · Sep 17, 2006

lol fire away!

Not sure if you can go completly standalone with the MS, although I'll be happy to be proved wrong.

AFAIK it can't control A/C compensation, or the strter motor and other boring stuff...

Caldera · Sep 17, 2006

Starter motor shouldn't need ECU interference, I don't have AC, etc.

My concern lies in the lack of a trigger wheel on the pre-OBD2 cars, I'll be running full off of cam-timing. I'm not 100 percent enthused by that.

RichyVRLimited · Sep 17, 2006

check out www.miataturbo.net loads of people have fitted them to early Miata.

If you're really worried you could just retrofit the later CAS?

Hi Im Simon · Nov 2, 2006

my MSII is almost done. too bad the software for the miata is out yet.
should have bought a MSI

DOH!

simon

Braineack · Nov 2, 2006

http://www.kingofl337.com/miatasquirt/

RichyVRLimited · Nov 2, 2006

Braineack @ Thu Nov 02 said:
http://www.kingofl337.com/miatasquirt/

fine if ya wanna cheat and have someone else do it for you

Kinda defeats the point of the whole MegaSquirt concept really though....

Agent935 · Nov 2, 2006

It's still cheaper than an AEM or a Link.

Agent935 · Nov 2, 2006

It's still cheaper than an AEM or a Link. which is definately part of the point.

Braineack · Nov 2, 2006

yeah, plus I'm not much of a whiz when it comes to wiring. Programming shouldn't be a problem. so for $500 you can have a full stand alone and a base map. I don't give two sh*ts and a whistle if I didn't wire it myself.

RichyVRLimited · Nov 2, 2006

#-o sorry, didn't mean it to come out so harsh, was only meant as a joke!

MS does rock, I love it! and you can keep adding to it, it's ace!

http://www.mx5nutz.com/forum/index.php?showtopic=19381

Braineack · Nov 2, 2006

dont worry, it's not easy to affend me in any way, i wasn't and you didnt come off harsh. 97% of what I post I'm laughing (or giggling) as I post it. I just make my avatar look mean so everyone gets scared into thinking im tough.

Hi Im Simon · Nov 7, 2006

i had a blast building mines, i can't wait to put it in. i'm redo'ing my wiring harness too.

simon

flippy02 · Nov 11, 2006

Braineack @ Thu Nov 02 said:
http://www.kingofl337.com/miatasquirt/

could that be adapted to use on a NB?

RichyVRLimited · Nov 11, 2006

Yes, checkout www.miataturbo.net it's been fitted by a very clever and helpful bloke who goes by the name of Reverant.

rthompsonjr · Nov 11, 2006

I just got mine with a LC-1 widebind in the mail yesterday, and already did the mod to use the CAS. Hopefully I can get a day off work next week and start the install.

flippy02 · Nov 13, 2006

i'm looking at reverants build up, and i'm trying to see what information i can use for my 99, as far as I've heard, i'd just have to transplant a CAS into my car and wire it in. but i could be wrong, and not to forget the IAT, and i guess i would need a wideband

oreo · Nov 30, 2006

My concern lies in the lack of a trigger wheel on the pre-OBD2 cars, I'll be running full off of cam-timing. I'm not 100 percent enthused by that.

It's true that cam driven timing may not be as stable as the crank style, but have you seen any data which compares HP loss/gain between the two? I am interested in seeing what the difference actually is... I am running MS and decided to go with the cam trigger, and am quite happy with the result.

Of course, many people have added trigger wheels to their existing setups, so this is something that could be tackled later...

IMO you should consider just initially using the MS to control the Fuel. This would involve leaving the stock computer in place and routing 7 wires and vac line to the MS. After you have that working, then you can add the ignition. This way, if you have troubles getting the car to run, it is easier to figure out what is wrong....

bryantaylor · Dec 1, 2006

megasquirt is great, i have it on my turbo probe. diyautotune.com is a really good place to buy from too

Megasquirt

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