Bigretardhead

t3h mEgAsQuIrT!!!! just finished building this sweet custom harness for megasquirt. its merged with the stock pass. side harness. and I'm ridding myself of the emissions, and all other worthless crap on the stock harness, so it will be super clean!!!

about to go put this sucker in the FC. hopefully it will work. lol.

and yes, I'm well aware that ALL the wiring is white.



all the extra wire we cut off the stock ECU...oh wait, thats actually not all of it.

BlaCkPlaGUE

lol, nice! I think the best part about doing that kind of thing is hooking it up and the car starts up first try! meaning you didn't **** anything up!

Btw, how did you know how long to cut each wire?

ddub

Very nice.

bcool

I really wish they would finish our timing code. Nice to see some people in the community running it.

SpeedyRotary

wow..props man that musta been strenuous..how did you manage that project?

88IntegraLS

That's great. I like the megasquirt and think I might go that route some day. Haltech isn't for me.

RotaryEvolution

iTrader: (30)

i just hope you never have to trace out a wiring problem...

rotarygod

iTrader: (1)

I just got my Megasquirt running. It started on the very first try! Easy as hell to tune. I have no idea why people constantly say efi is hard to tune or that you need a dyno. That's a myth.

My unit is screwed to the back of my glove compartment box. I just don't want it on the floor. I drilled a hole into the transmission tunnel behind the radio and ran all of my wiring through it. It all comes up behind and under the intake manifold. Really clean and the wiring is super short. I think my longest wire is about 3 feet long. It looks great. You're going to love it.

SonicRaT

iTrader: (6)

I always hated wiring up the megasquirts. It'll be nice once they can finally do *everything*, what version are they on now?

Bigretardhead

I didn't....just kinda guessed at it. lol. guess if there's anything thats eccesively long once its in, I'll probably just shorten the wires then. but I think it should be okay.


thanks. not really sure how I did it... just kinda happened. but the credit for the wiring really goes to a friend of mine. he spent a crap load of time getting this thing together with his crazy electronics and soldering skills. it would have taken me months to do it by myself, and then it wouldn't work.

sweet! I hope mine does the same. and yeah, I agree. my friend(that made most of this)just finished doing one in his G60 powered rabbit, and he's tuned it pretty damn good so far from just driving around, and using megasquirt's crappy narrow band A/F readout. he will be going to the dyno to tune it for its best performance, but for now, its pretty good. and yeah, really not too hard to do...although it is a evil piston engine, so its not as critical if he runs a little too lean and detonates once or twice...I'll be much more conservative with the initial tuning of my FC. lol.



thanks for the compliments guys. keep em' coming!

Tofuball

You dont HAVE to have all the wires all white: http://www.rs-autosport.com/

You can use WBO2 sensors with MegaSquirt you know, theres a great DIY one at WBO2.com that uses a VW sensor.

Thanks for posting pics, I was planning of doing almost exactly the same thing

Kenteth

nice! goodluck getting it tuned

Out of curiosity, how about are you timing? Stock CPU or 1st gen dizzy?

staticguitar313

iTrader: (2)

how are these megasquirt computers? that link aove has them priced at $269? and they work good? what can you do with it, does it make you toast?

SirCygnus

iTrader: (1)

the civic vx has a wideband o2 sensor.

Bigretardhead

wow, but I only spent $10 on my wiring.

any yeah, I was thinking about getting that WB02 thing, but I'm just gonna end up going to the dyno anyway, so I may just use theirs.

timing will still be managed by the stock comptuter.

mine was purchased for like $80. I think my friend initially spent around $160 on his, but that was including the testing module, and some other stuff. it does work good, but you can't yet really do spark for our engines, and its a LOT of work, compared to some other systems anyway.

what can you do with it? you can tune your fuel system, independently from the stock ECU. no, it does not make you toast....well, it 'could' make your engine toast if you tune it poorly.

Tofuball

I am using EDIS

SpeedyRotary

This thing is very interesting..how many people use this in their Rx-7?? I'd like to hear some opinions on it..

Kenteth

seeing how its open source, if you want it to make toaste... damn right it can make toast. Just depends on how much effort you want to put into it.

Kenteth

ok... what system? Is EDIS a component of MS, last I heard they weren't able to find the algarythym to imitate the rotary timing functions...?

Bigretardhead

tofuball, yours is N/A, right?

I 'believe' with the EDIS, you still can't do trailing and leading differences properly.

but I really don't know much about it. would someone like to explain this system to me and kenteth

hypothermix79

Who here has put thiers together themselves and how long was the time invested. I've really been considering this. I thought about getting asking my circuit analysis Instructor to give some extra credit for it.

Tofuball

Do a search on it, theres an incredable amount of info out there.

EDIS is a system stolen off a Ford

Kenteth

I thought it was off of a gm or ford spec. So does EDIS actually have support to accurately time a rotary, or are you manipulating the main structure significantly?

renns

Some MS ignition info here (last page):

https://www.rx7club.com/forum/showth...00#post3953400

and here:

https://www.rx7club.com/forum/showthread.php?t=389572

MARTIN

If I use the computer for fuel only, then I dont need the afm right ?