The Big MegaSquirt Info Thread...

[Dutch]

i would like to know:
what version MS u guys have with what board.
what sort of tach signal u use HALL/OPTICAL or VR
what sort of ingnition
which jumpers u installed
etc etc etc.
i would like to see some pics with what parts and extras and so on.

for those who like to know.
i have MEGASQUIRT I with BOARD V3.0
at this moment im at step #70 at this page Assembly Guide - MegaSquirt V3.0 Main Board
here some info about differences and whats what (thanks Fred) MS2/Extra - General Docs

thanks all for the input. i think this is gonna be THE thread to read when going MS.
please share your setup so guys like me can learn how to do this.

[defiler]

EDIT: I'm in the wrong section.

[anarchyx34]

From memory:

MS I v2.2 board with MSNS-E code
Optical tach signal from factory dissy. Signal wire has pullup resisitor going to injector + (required or it wont work)
Crane HI-6 ignition triggered off of MS F.idle terminal.
Jumpers..... don't remember.

[fredio54]

MS2 with ms2e code v2 alpha
V3 board with extra power feed pin and heavy wire inside for flyback (deficiency in original design, but only matters with low Z injectors)
4 cyl cop with duplication of led circuit for indication of all coils firing from inside the cab
the jumpers required per following the intructions for my needs (just followed them like everyone else)
both std v3 vr sensor circuit, and opto circuit in use
opto hooked to single slot signal with pullup resistor to 5v rail inside ms
vr hooked to ford edis vr sensor and 36-1 ring on crank

might link the pics later if i can be bothered. and my msq (which is rough) and datalogs are hosted elsewhere...

shoot with questions, i'll do my best to answer if i can :-)

fred.

ps, good idea.

[Dutch]

i think we need this as a sticky..
im totally a noob with this stuff.. and im sure a lots of others are too.
on the other hand, its a mather of just doing it and try with lots of trial and error.

what coils and ignitors did u use Fred ?
what are the heavy duty resistors doing on top of your box and where are they wired too?




btw what took u so long

[fredio54]

lol, lucky it wasnt tomorrow... avoiding bed... argument... etc...

fe3 coils and fe3 ignitors and it works brilliantly :-) any coils and ignitors will work NA, but boosted you need more juice. only trial and error will show if a coil can deliver the goods at high cylinder pressures and high rpm. most will likely be fine. the totally stock edis wasted spark setup has been tested to 17psi on a 4age also. you should be using the gap the plugs come with out of the packet, and if you get blow out, then play with coils etc till it works right. do not reduce gap, thats a hack. bigger gap = more exposed mixture to spark = more complete combustion and less advance for good peak pressure angle.

the resistors are in place of the to220 ones supplied in the normal kit. current sense resistors. i ordered a "partial kit" and got the bits together myself. i couldnt get suitable resistors locally, so i used those instead. makes pulling the case off a pain...

i would recommend a full kit. its a lot easier...

fred.

[YouAsk]

MS1 v2.2 (fuel only) triggerd of the coil directly
Stock FE3 igntion (kicks ass...works great)

E85fuel and ~340ish HP

[fredio54]

Originally Posted by YouAsk

MS1 v2.2 (fuel only) triggerd of the coil directly
Stock FE3 igntion (kicks ass...works great)

E85fuel and ~340ish HP

so you are still blowing through a stock hot wire sensor?

what are you doing for advance tables?

or should i say, how are you retarding the timing in boost? or are you just keeping the octane up with the e85 and not worrying about it :-)

i suspect the latter ;-)

fred.

[YouAsk]

Originally Posted by fredio54

so you are still blowing through a stock hot wire sensor?

what are you doing for advance tables?

or should i say, how are you retarding the timing in boost? or are you just keeping the octane up with the e85 and not worrying about it :-)

i suspect the latter ;-)

fred.

They very very easy way
I don't use the MAF or TPS only RPM to the stock FE3-ecu
I do no retard igntion anything. Not a single detonation yet.
I used it the same way with stock fuel. But then only 1bar boost on a TD04-15t

[AMD IS THE BEST]

MS I V3.0 Board running MSnS-Extra Hi-Resolution code

The FE's disty is almost 100% identical to that of the mazda miata. The miata is a very popular car in the MS world which makes MSing an FE fairly straghtfoward and there is a lot of info out there on it. I took my setup a bit above the normal miata setup and went with coil on plug (not even that much more complex).

Check this link out: How to MegaSquirt your Mazda Miata

Nick

[fredio54]

the mx5 dizzy and fe3 are different if you want two triggers from them. the mx5 has two slots on the inside. fe3 only has one. the disks are swappable though, so you can use whatever on whichever if you know what i mean.

[fredio54]

Originally Posted by YouAsk

They very very easy way
I don't use the MAF or TPS only RPM to the stock FE3-ecu
I do no retard igntion anything. Not a single detonation yet.
I used it the same way with stock fuel. But then only 1bar boost on a TD04-15t

so i take it with pump gas you tuned it rich instead? your comp ratio is lowered though isnt it? if you have good intercooling, that could make it ok i guess.

[AMD IS THE BEST]

Originally Posted by fredio54

the mx5 dizzy and fe3 are different if you want two triggers from them. the mx5 has two slots on the inside. fe3 only has one. the disks are swappable though, so you can use whatever on whichever if you know what i mean.

It depends on the miata's engine. The 1.6 has two slots and the 1.8 has one slot. The link I attached is for the single slot disty (same as FE).

[fredio54]

heres a pic of it



also available was this :




it doesnt mention the miata here :

http://www.msextra.com/ms2extra/MS2-...tion.htm#cas41

only here :

http://www.msextra.com/ms2extra/MS2-...ition.htm#4g63

and here :

http://www.msextra.com/ms2extra/MS2-...tion.htm#miata

as far as i know, two slots or one doesnt matter on ms1 code. but it does on ms2 code.

can you link anywhere where it shows miatas having 1 inner slot? dont know about that myself.

fred.

[AMD IS THE BEST]

Read the link I posted from DIYautotune.