MSefi.com read only forum (Jan.15,2018)

I use 1/8" OD hose

I don't doubt that it's a huge improvement over the standard stock setup, but did you go straight from a distributor setup to EDIS, or did you go to MS controlling spark through the distributor (with a trigger wheel) and then to EDIS.

I never had a trigger wheel controlling the distributor. I was ...

Why's that? (assuming that the distributor is only distributing spark)

It's hard to explain unless you've experienced it yourself. Once EDIS was on, it didn't run like a Volkswagen anymore, it ran like a modern engine. I figured the biggest benefit the EDIS would have would be better ...

How would you get more accurate spark control, better tunability and more milage?

I'm comparing it to the distributor controlling timing. I had MegaSquirt controlling my distributor at one time and EDIS completely blows that out of the water, too. More accuracy comes from no spark scatter due to ...

Going to EDIS is a "don't even think about it" upgrade. As in, don't even think about it -- just do it.

EDIS has every advantage over a distributor. You eliminate moving parts, get more accurate spark control, infinitely better tunability, more reliability, I picked up some milage.

I can't even ...

Yes, MS can control fuel and spark for the Ecotec. Several have done it. I may put MS on my Saturn eventually.

Read these forums and the manuals and you should be able to get a handle on it.

Usint the req_fuel calculator in MegaTune I come up with 6.8 as the req_fuel.

Values I plugged in: 2000cc, 4 cylinders, 48 lb/hr, and 14.7 afr

Thank you for the response
I have used a tec2 before and found that not too bad
What is making a fuel/spark map for the Mega Squirt like ?
thank you
1952

The fuel map is easy. I datalog with a wideband O2 meter, use Megalog Viewer to automatically adjust my VE table, then do any spot-corrections ...

Check the success story link in my signature.

If you don't have any leaks or other physical problems, you can try using "idle advance". I got my Bug to idle at 900 RPM by using it. You set the RPM and vacuum thresholds, and you get a fixed spark angle at idle. You can try playing with that, setting the idle advance low to reduce idle RPM. I've ...

Matt Cramer wrote:It's an MS2-only feature, but it's been in MS2 under the Tools menu for quite a while.

Oh. I'm MS1.

devastator wrote:Never noticed which, the gauge or the calibrate AFR?

Calibrate AFR. No version of MegaTune I've used has ever had it. My current one doesn't. Is this fairly new?

I don't have MT on this pc, so I can't give you a screenshot, sorry. In MT: "Tools"-"Calibrte Afr Table"-enter your sensor type and press ok. Also, the MT gauge may not go below your AFR, so it bottoms out, appearing stuck. I changed mine, so I don't remember what the default settings are.

Hmm ...

You can put it anywhere it will read the temperature of incoming air. Intake pipe, air filter, you can even put it in the manifold.

I had my IAT in the air filter when I was running normally aspirated and it worked fine.

I made some out of plain copper wire from Auto Zone and the ends from the old wires (off an Escort). Just remember to change over to resistor plugs.

BottleFed70 wrote:Sweet! I didn't know it was possible to remove the ends. What's the process for removing them?

Just uncrimp them. I used needlenose pliers. Eventually, I got a set of plug wires for a modular V8 and used the four longest wires out of it. My homemade wires kept coming apart.

JAM wrote:Hmmmmm......... how does it do a better job at maintaining a constant pressure drop when vac referenced as opposed to not vac referenced??

As manifold pressure changes, fuel pressure will change in a 1:1 ratio with it, keeping the relative pressures consistent.

i have a ford tps and throttle body of a ford mondeo, i have wired up the tps and calibrated it.
on closed throttle it records 0, when i record the current at full throttle it reads 4!
is this normall for a ford tps i thought the count would be higher than that, can some one confirm if they have ...

I ran E85 through aluminum fuel rails for a long time without any problems. Never had any issues with fuel hoses, either, using generic "fuel injection hose" from Auto Zone or NAPA.

I had to change my fuel filter because the E85 dislodged all the crud from my gas tank.

My noise supressor is mounted to the coil. I had my ground wire run to a body bolt and my engine would never turn over 5500 or so. I moved the ground wire to the battery -terminal and, presto, 6900 RPM!