Topic: N/A with Ram air Stock ecu = RICH

[Bassnectar]

whats the best bang for your buck on a basic air/fuel ratio controller that will work well with a subaru? because my exhaust tip is coated in black

is Apexi the way to go?
Safc? sorry for not doing my research but tried and just got confused.

1998 with ej25 and weapon R intake

[bigdl]

whats the best bang for your buck on a basic air/fuel ratio controller that will work well with a subaru? because my exhaust tip is coated in black

is Apexi the way to go?
Safc? sorry for not doing my research but tried and just got confused.

1998 with ej25 and weapon R intake

Go back to stock??

[gc808]

Your best bet is to go with a hybrid style intake, that is leave the stock air filter box and snorkel and remove the torque box and accordion line and replace w' mandrel bent tubing. Replace stock filter with apexi panel filter and you will have the best flowing intake w/o resonance

[REX]

equal length headers perhaps? I think there's dyno graphs to prove it adds power on rs25.com somewhere.

Cams would add some decent gains as well but it's not really a bolt on.

Theres an older thread on Nasioc I think, someone who did all the possible bolt ons on a ej251 and ended up gaining ~50whp or something like that.

[Ambystom01]

I would be amazed if your intake was causing you to run rich given that you should be hitting the same AF ratio as dictated by the ECU. Have you contacted Airboy to see whether he can tune it?

equal length headers perhaps? I think there's dyno graphs to prove it adds power on rs25.com somewhere.

Cams would add some decent gains as well but it's not really a bolt on.

Theres an older thread on Nasioc I think, someone who did all the possible bolt ons on a ej251 and ended up gaining ~50whp or something like that.

Wut? He's asking about an aftermarket ECU controller, not what other mods he can do to his car.

[REX]

I would be amazed if your intake was causing you to run rich given that you should be hitting the same AF ratio as dictated by the ECU. Have you contacted Airboy to see whether he can tune it?

Wut? He's asking about an aftermarket ECU controller, not what other mods he can do to his car.

wow, my bad. totally misread the OP somehow

i know back a few years ago when I had my N/A GF a lot of guys we're using PerfectPower6's, not sure if its obsolete by now but it's something to look into.

http://www.perfectpower.com/

[Zaider]

... you guys realize he bumped a 3 year old thread right?

and no, Sunny can't tune that engine as there is no ROM for it to my knowledge.

[REX]

heh, nope didn't even notice.

still probably some relevant information to someone wondering about N/A aftermarket ECU's though 

[Zaider]

still probably some relevant information to someone wondering about N/A aftermarket ECU's though 

Not really.

[gc808]

Haha my bad stupid tapatalk...