adog wrote:
A few of the LS1 guys who need a system capable of driving low impedance injectors have used Megasquirt with good results. With the alternative being a $2500+ BS3, it's a pretty good buy.

I'd like to see a Megasquirt system in person, though. What's the ETA on your project car?

I should have MS running on my car within a few weeks. I will update this thread when it happens. I have to get off my lazy ass and put the engine back together first..

I'd like to see a Megasquirt system in person, though. What's the ETA on your project car?

PSI2HI wrote:
You can make a completlt flat A/F curve w/ any managment, even piggybacks and chips, so whats your point there?

I simply wanted to show that this system is being used on applications that have made tremendous power. I'm pretty sure Parrish could afford to run any standalone EMS, but chose to run a Megasquirt for whatever reason and it has served his 1000+ HP needs.

Parrish video thread:
http://www.fargostreet.com/showthread.php?t=3981

If you look closely at the video you can see that this truck is running Megasquirt engine mangagement. See the attached when shows a screenshot of the video.

Look at the A/F curve at 3:26 and you will see that it is very flat all the way across the rev range. Put in the hands of the right people, Megasquirt is a completely capable engine management system.

Lucas

On the "you get what you pay for" note..... the reason megasquirt is so cheap is because of the software. Its freeware. the system itself is capable of AT LEAST as much as SDS, for about 1/5th the price, and thats for the prebuilt unit. Also, they just released some PDA software that allows you to run the damn thing on that!

Megasquirt is, in my opinion, better than any piggyback. You can get one with a 3 bar map sensor, so hi boost situations arent a problem. You can also get 12x12 VE and ignition tables in a code download called "Megasquirt and Spark Extra" plus, megasquirt II is now out. And that has a freaking FAST processor.

I myself am waiting for Megasquirt Ultra. It will have 12 user definable outputs, so on my I6 motor, that means 6 injectors and 3 for ignition. Full sequential Fuel injection as welll as 3 wasted spark coil packs. Im sure I can find a use for the other 3 outputs as well.

McAdam

But to each there one, do hat you want, im just saying what i'd do for the setup/power your looking to make. If your looking to make 600+ then i'd go right to an AEM otherwise i wouldn't even bother w/ more than VPC/AC.

integra_gsr98 wrote:
AEM Makes an ECU w/ a harness that can be terminated as well.

I understand that any standalone computer can be installed in any car. Most of the people that decide to use a Megasquirt are cheap, like me. I'm sure the costs are much lower at a dealer, but according to AEM's website I will have less into my entire EMS than the price that they want for a harness. To each their own. I know that I will know more about my car and engine management systems in general when I am done with this install; something I find very rewarding. It is definitely not for the faint of heart such as someone thinking it will be a weekend install and one day dyno tune.

Taken from: http://www.aempower.com/product_ems_app.asp

Universal Plug & Play Programmable EMS & Harness

DescriptionPart - Number Availability - MSRP
Universal EMS30-1900U New Release$3,243.75
Universal EMS Harness30-2900-72 New Release$868.75
Universal Plugin Pin Kit30-2902 New Release$104.16

91nbtsi wrote:
The megasquirt is mostly used by people with cars that have no viable piggy backs, or those who want a cheap standalone ECU. ... Have to read up for some details Al. I guess it couldn't hurt, you can get fully assembled MS and sparks for like $300.

If I ever get my car finished it will be it will be running a Megasquirt. I built the computer early last summer and everything tested out just fine. I will be running fuel only control right away until I get all of the bugs worked out, then I will add the spark output option and take over my timing as well. The entire Megasquirt community has been growing a lot in the last year which gets more people involved in finding new ways of using the existing board for more options. I haven't been in the Megasquirt loop (I know what you're thinking) for quite a while again, but there were plans for ULTRA Megasquirt which was going to be a extremely powerful, reliable computer. It would use a new processor and almost all of the components would be surface mount instead of the thru hole components. This also makes it very hard (pretty much impossible) to hand build. ULTRA Megasquirt would have everything built right in: fuel, spark, wideband input, stepper IAC control, etc.

I can understand spending the money an AEM, MOTEC, Hondata, or comparable standalone computer if they make a kit for the specific application (Civic, Integra, DSM, Supra, RX7, etc.). For those of us who don't have a plug and play EMS available, it really makes sense to Megasquirt because you will have to build your own wiring harness, add sensors, and make other modifications either way. The tuning GUI isn't quite as cool as some of the mainstream EMS's, but the functionality is still all there. Follow the link that Kevin posted and you will have more information than you might want. Also check out http://www.msefi.com/ for more info on developments in hardware, software, different vehicle installs, etc.

Lucas

Had to say something...sorry.

integra_gsr98 wrote:
Aem?

AMEN

integra_gsr98 wrote:
I am now a firm believer that free and cheap EMS' fucking suck!

Lets hear some cons? What do you think is better VPC or Mega Squirt?