Injector driver box help

[18Ace18]

So i put 1200cc injectors and car idles really bad and breaks up like nothing.

I've been told that i need a driver box for anything over 1000cc's.

I've also been told that with E-85 i wont have any issues and won't need a driver box.

Will i need a driver box to use the 1200cc's on pump or e-85?
Is there another way of fixing this problem?

 

[2GFWDbeast]

I see you have a ecmlink. Maybe your tune is off. I have 1250cc in my car with no problems running ecmlink. Make sure your global settings are right for the injectors and the dead time.

 

[18Ace18]

Alright ill look at the tune.

Anyone has any other suggestions or answers?

 

[smorton]

Normally a bad idling issue would have to do with the fuel/air mixture... So my vote is also on a bad tune. ESPECIALLY if this started right after the new injectors were put on.

 

[RvlutionMtrsprt]

Poor tune or bad isc, something along those lines. The only injectors I've ever seen or heard of needing a driver box on our cars were the FIC 1750cc and 1850cc injectors. I ran my car on pump and e85 with 1170cc injectors and it idled great.