hey,
i have a built VG30ET the JDM version. i have custom rods / pistons / bearings / heads *(valves , retainers, springs, ect) / crank polished, cryo'd blue printed / i have NO ecu and cant find one. so i want to run a stand alone. and i have a garrett GT35R // front mount // tail bov and waiste gate.


has anyone heard of the mega-squirt systems? my friend has one in his eclipse. but he has an ecu that is running the regular things. what am i going to do if i dont have an ecu that connects to the rest of the engine. how are the notmal things going to work.

im not sure how to make this stand alone all hooked up and working.
i just dont know how most little things are going to work. any info will help
well thanks

 

With the romulater options available for 3rd gens I'd definately run a stock ecu + a romulator program. Megasquirt is sortof a backyard DIY cheapo engine management, open loop all the time I believe, etc. Find an ECU and get a romulator that's my advice. Finding an ecu is going to be a damn sight easier than setting up an untested (on maximas to my knowledge) cheapo standalone (or non cheapo depending on what you decide to go with) if you lack extremely vast amounts of knowledge about the subject.

 

Actually, Megasquirt has closed loop control. It can even utilize a wide band o2 sensor and controller if you have one.

Quoted from http://www.megasquirt.info/ms2/
click on "tuning megasquirt II" on the left.



I guess that's a matter of opinion! However,
I'd have to agree with that.


allen

 

you need to be really really dedicated to MS if your going to dive in and try it by that i mean spending many many countless hours reading on both the main MS page and also www.msefi.com also getting to know the megatune software but once you get it running and tuned right you will be a certified EFI genious in my book and be one of the many extremely inteligent individualls over there

if your just interested in the easiest way the romualtor will do just fine but MS has about a hungred more features like wideband support, autotune, nitrous control, traction control, launch control, water injection control, Efan control just to name a few plus new feature are being added monthly. within the next year MSII will be pretty far developed they expect siquential injection and 6 and 8cyl coil on plug support

 

uhh,
i dont have an ECU for the motor i got, how would the romulator control fuel and spark?
i need to have something to control spark cause i dont have the stock ignotion anymore, and what is this romulator thing,
whats the website for it.
thanks for the help

 

I'm saying finding an ECU would be easier than getting a standalone up and running in an untested platform.

 

90 se auto ecu- pm me if you want it.

If you really wanted a stand alone system a haltec would work. Alot of wiring and tuning, but it'll work fine on the VG since the 300z's used them.

Personally If I had were turboing my VG Id just get the zemulator. http://ashspecz.com/ashspec/zem/zem_about.htm Pretty simple and proven.

Theres alot of ways to manage a high HP vg. Just choose which ever you think is best.

~Alex

 

no one has fully got the Zem to work to its full extent let alone the VG. Aaron got a decent way with it, but never as far as FI and not sure how successful it was eve n/a on his VE.


truthfully I don't know how much power the poster plans on making or whatever, but for staters an Emanage Blue is an easy and proven solution to get things going, just buy a stock ECU and start out there...going through the trouble of a big time standalone on a car thats iffy about even putting out decent numbers is a waste in my book...start small then build big

 

Defnititely agree with the posters above here. With an unknown system, best to start with at least one known. I built all my maps off of stock ECU to get it to run like stock. You have to tune up from there. If you are working with several unknowns, it makes trouble shooting so much harder.