ok so i have a b18c1 with a cr of close to 12:1 (jdm p30 civic si pistons)
no cams in it yet(just stock ones) ( will get them after i break in the engine)

i have uberdata and im lookin at a plx m300 WB

i have 440cc sat injectors

im afraid to start the car un tuned and mess up my motor by running too lean or too rich. the first 20 30 mins of a rebuild motor are the most important and if i have problems with rich/lean the rings or pistons may get fucked or the like

what should i do ??

i live in NJ and i see some fo you are in NJ as well

if someone will tune/ help me tune my car in the area i'll def pay

 

start tuning it instantly. since u have the wideband in there it should not be too difficult to get a nice stoich idle out of it. if u dont want to do that and are tryin to start building a map from scrach just try a stock ecu at first and adjust the fuel pressure accordingly to get a decent mixture and make sure the timing is where it needs to be

 

12.1:1? with just p30's?

Im doing the same setup and have found b18c1's with p30's to yield 11.6ish:1 using c/r calculators.

Not doubting you, just wondering how you came up with 12.1.

With PCTs in s C1 completely stock i have found it to be in the 12:1's.


I am also wondering what i should do about break in process for my motor.