260B4U

iTrader: (4)

just completed the heads and cams swap with 38 lb injectors ready to start
afr 205's
tsp 228R
38lb injectors

will it start on stock tune ?

Darkman

iTrader: (2)

You should start it with whatever injectors it is tuned for. In fact, an injector change should not be done until you are with the tuner.

blsnelling

iTrader: (4)

+1. I would not try to start it if you have changed the injector size.

260B4U

iTrader: (4)

will it run well enough with stock injectors to take it to the tuner? or will it be really lean i have plx widebands for each cylinder bank

Rise of the Phoenix

iTrader: (27)

I'd like to know this as well. Is replacing the stock injectors a must when doing a heads/cam swap? I'm about to do mine and hadn't planned on injectors.

180ls1

iTrader: (4)

yea put the stock injectors back on there or have your tuner calibrate the computer for the larger injectors. The last thing you want to do is kill your rings because of too much fuel and you will do that.

To get it to idle better i would adjust that screw on your throttle body.

vettenuts

iTrader: (4)

I drove to the tuners with stock injectors and changed when I got there. He did an initial tune for the restart with larger injectors. I agree with all above.

Jon@Texas-Speed

iTrader: (18)

Don't start it with untuned injectors. If anything leave the stock ones in and swap them when you get it tuned. It will be okay to drive a bit untuned otherwise. You might have to help it stay idling though. But don't run it with the new injectors until you get it tuned unless you plan on putting rings in it.

Jon

260B4U

iTrader: (4)

cool thanks for the info guys

260B4U

iTrader: (4)

all right pressures up wow it is way louder then before... my neighbors will love it

01ssreda4

iTrader: (96)

Exactly, you dont want to start an engine without the right injector scaling in the computer.

rob00ss

how long would it take to ruin ur rings with untuned injectors