ECU set for 555cc inj but the car has 550's, bad?

[D1champ]

Like the title says I found a tomei ecu tuned for for 555CC injectors but I have deutchwerks 550's installed on my engine. I don't it's going to damage anything although it's not going to be an perfect tune. Can anyone confirm this won't damage anything permanently on a daily driving scenario?

[mtx450]

from what i have been told...you might have an idle issue b/c deutchwerks bores out their injectors to add more fuel, other injectors i believe, do that to a point, but then also change the solonoid circuitry too

[slideways2004]

i don't think you'll have any problems other than a rough idle maybe. less fuel might even make a little more power up top:naughty:

[DP_Michelle G]

just run a afc to fine tune the injectors

[RedtopTech]

dido
blah blah blah

[EJ253]

+1 for the safc idea

[2Slow40]

It depends on what type of injectors the ECU is tunned for, thats where you might find a problem. 550cc injectors from one company, isn't exactly 550cc from another.

But as far as running 550cc's on a ECU tunned for 555cc's, its not a problem. 5cc's isnt anything to tune for in chipped ECU's.