M2 ECU Q ... searched
Joined: Mar 2001
Posts: 31,835
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From: https://www2.mazda.com/en/100th/
m2 didnt recommend the ecu be used without the main cat OR a port.
if you wanted to do that, they sold you a rising rate fuel pressure regulator (this was the 90s!).
theres nothing wrong with the m2 ecu, but using outside its tune, will result in engine failure, eventually
if you're going to be over 300rwhp, then you should be adding fuel, or using water injection or something
if you wanted to do that, they sold you a rising rate fuel pressure regulator (this was the 90s!).
theres nothing wrong with the m2 ecu, but using outside its tune, will result in engine failure, eventually
if you're going to be over 300rwhp, then you should be adding fuel, or using water injection or something
If you want to be 'safe', get the motor ported and then keep the boost at 10 PSI with the M2 ECU. When you have the money, get your KS turbos and a PFC (or other programmable ECU) and start tuning and increasing your boost.
m2 didnt recommend the ecu be used without the main cat OR a port.
if you wanted to do that, they sold you a rising rate fuel pressure regulator (this was the 90s!).
theres nothing wrong with the m2 ecu, but using outside its tune, will result in engine failure, eventually
if you're going to be over 300rwhp, then you should be adding fuel, or using water injection or something
if you wanted to do that, they sold you a rising rate fuel pressure regulator (this was the 90s!).
theres nothing wrong with the m2 ecu, but using outside its tune, will result in engine failure, eventually
if you're going to be over 300rwhp, then you should be adding fuel, or using water injection or something
13 psi on a ported motor is beyond the safe limits on that ECU.
I don't think it was ever confirmed whether M2 discouraged the use of a midpipe because of tuning reasons, or the fact that boost can become uncontrollable and cost someone a motor (i.e. they didn't want to be blamed for blowing a motor). As already mentioned, a wideband will tell the story as there have been several people to run midpipes with M2 ecu's over the years without issue.
Rotary Enthusiast
Joined: Feb 2004
Posts: 1,083
Likes: 4
From: california
at 10 psi with a ported motor and hf cat the car will be fine. even the stock ecu will support this. so if the 10 psi rule is followed with all the bolt on's , the m2 ecu will support the added flow just fine and my guess is it will still be rich (at 10 psi) . "The Key is to Control the boost"
Jeff
Jeff
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