3S-GE factory specs & megasquirt

[StuartM]

Hello world
im going to replace my 3S-G ECU (1986 ST162 GT-R celica) with a megasquirt v3 and had a couple of questions I was hoping to get answers to.

what CC/minute are the OE injectors?
what is the fuel injector opening/closing time?
is there a MAP sensor anywhere in the car? (supras have one in the cabin!)

is there anyone else out there with a megasquirt-controlled 3s-ge who could send me a msq file to start my tuning with? what Req_fuel and idle PWM did you use? was the stock EGO sensor any good?

[RomanV]

First of all, good on ya for giving megasquirt a go.
Very cool.

Karl skewes had a 3sge running on megasquirt, however he was running quads, so his fuel requirements would be rather different.

There is only 1 map sensor, and it tees into the intake manifold.

EDIT: argh, I thought I had the injector sizes written down somewhere, but I dont.

[StuartM]

thanks! I have downloaded his msq files from the garagedori.com website

my stock ECU is an AFM type (should have said it was a 3S-GELU) will it still have a MAP sensor??

[RomanV]

Doh! Sorry, youre right, I mistakenly thought it was a gen 2 3sge.

Sorry I dont know much of anything about gen 1 engines, but good luck with your project.

[Malcolm]

if the injectors are green they should be 295cc/min, 13.8ohm

it doesn't have a map sensor, so get one from another NA map sensed toyota

[Boldy]

FYI megasquirt has a built in MAP sensor. Just need to run a tube from the inlet manifold to the MS.

[Malcolm]

good to know

[dodgy]

im halfway thru setting up msns-e on my 3sge. running quad throttles and cop coils.

[RomanV]

So you're ditching the carbs? or are you using MS for the ignition timing etc?

[dodgy]

got carbs on one engine in AE70, and quad throttles plus msns-e in mr2.
also looking at running msns-e on gen4 with factory intake in AE86 for targa next year. We love our 3sge engines down here!

[spencer]

is there anyone else out there with a megasquirt-controlled 3s-ge who could send me a msq file to start my tuning with?

no point using Karls if you havnt got quads, You'll have a whole lot better megasquirt experience if you start from scratch just go read the mega manual about 10 times

[JamesM]

yah megasquirt