bene

iTrader: (16)

I'm going to swap my stock ones with these. Do I need to retune my car?

EDIT: I just realized I started this thread in the wrong forum... Mod/Admin, will you move this in an appropriate place?

lastcall190

iTrader: (36)

You should retune for the injectors if nothing else.

-J

bene

iTrader: (16)

Is it safe for me to drive the car without this tune. I might have to drive my car to my tuner's place.

Thorny

iTrader: (14)

You should be alright. I did the same thing last year and the stock tune handled it just fine.

Edit - I mean you should be alright to drive to the tuner. I would NOT leave it like that permanently because it will throw your fuel trims WAY off, which will effect your WOT fueling quite a bit. After a couple hundred miles you will be pig rich at WOT. Normal driving will be fine because your O2 sensors will compensate for the bigger injector.

lastcall190

iTrader: (36)

+1 I don't think you'll be put in a state of panic, they are 2.8lbs more than what you have. I just figure might as well get the most out of what you buy. You have a cam/heads?

-J

bene

iTrader: (16)

I don't plan on doing internal mods for ole 346 LS1. I'm saving for LS2 H/C down the road or maybe LS3 H/C depends on how much $$ I can save up.

bene

iTrader: (16)

Will it handle the same on A4 equipped cars such as my car?

macca_779

it will drive fine mate. plus it will be on the rich side not lean side so no need to worry

Thorny

iTrader: (14)

Yes, it will. It won't hurt anything, but you will run rich on cold starts and WOT. The rest of the time you O2 sensors will keep your AFR in line. IIRC, even at WOT I was only at 11.0-11.5 AFR.