I am just about done with my AMS 2.3 build but I had a question as far as break in with injectors. I put down before 350whp on stock injectors but I sold them and got HF boomba fuel rail and 1050 infectors. Do I need to put back my stock injectors to break in the motor so I dont run too lean or will I be fine with the 1050 injector for my break in period of the motor before i get tuned?

 

Huh?
As long as you have injector size compensation in your ECU program, you'll be fine.

If you don't, don't try to start the car! The ECU will compute your fuel based on the assumption that you have stock size injectors. In fact, your motor will be getting twice as much fuel per pulse as your computer thinks it's giving the motor. The result will not be lean -- it will wash down the oil from your cylinder walls pretty quickly, and run very rich if it runs at all, because it's getting twice as much fuel as it should...

 

Keep the stock ones in until you can get a tune. Your injector scaling and latencies will be off with the bigger injectors and make it run too rich. Too much fuel is bad for breaking in rings.

 

wow thank you guys...thank god i didnt do anything stupid to ruin this build

 

im in the same boat as you, im changing to ID1000cc injectors, once im done with my build im towing it to the speed shop to tune it just so i can drive and then after my 500 miles im going to take it back for the final tune.. mabe you can try that.

 

We definitely recommend having the car re-tuned or having the ECU rescaled anytime injectors are changed to ensure that the engine is getting the proper amount of fuel especially on a fresh engine.

 

what if I just plan on putting the stock injectors and fuel rail during the break in period untill I do my final oil change of the 3 that you guys recommend

 

I dont think its recommended to do hard pulls...it states that in there site and just to drive normal and stay out of boost so your rings sits properly

 

Off topic but my god did AMS raise the prices for our engines. Full 2.3L engine, $18,000! 2.3L block $9,000? They must really hate us Evo owners. MAP is $2,499. I was planning on running all AMS parts but forget that.