I have a crx si, which has the stock ECU.. i also have lying around a sohc zc engine ecu.. will this work? and would i get any benefit from using it instead of my stock ecu?

 

Anyone know before i go out and buy Mugen ecu?

 

any ideas? maybe fuel maps? anything

 

mods?

 

It depends on what year Si (PM6) ECU you currently have in the car. It also depends on what (if any) mods you have on the car....

I'll tell you now, that the '90-'91 PM6 (Si) ECU has very aggressive fuel/timing maps. Using the SOHC ZC ECU on a D16A6 motor, even with an intake, header and exhaust, you won't notice any difference at all. I doubt even a dyno will read any improvements.

Also, a Mugen ECU is a complete waste of money, considering you don't have a fully built N/A D16A6 powerhouse.

 

see i have a dual program chip in my car that is adjutable by a switch, i have the mmr program and the stock program, i can switch between programs on the fly when needed, i definatly feel the difference between the two programs, i have much stronger pull through mid and high end rpms. the downfall to the mugen ecu chip is that it was made for a car with a really stout cam, and after about 20 secs after the car is running it will throw a check engine light and get an irradic idle, you will burn through and eighth of a tank of gas just going to the grocery store also with that chip, so i wouldnt suggest running a mugen chip if you dont have the cash to back up the gas you are gunna burn

 

sorry bro
but as an example.. i had a PM6 on my SOHC.... it is a good ecu .... but even the PG7 has better fuel maps and ig timing..... the PM6 its good., but beleive me there are better ecus out there,,,,
yes u will notice a lil better power specially after 5 k rpms.... and it will be noticeable.... and i can say for experience bc i have been there