91' 240sx RB25, when do i need too Tune it

[havik420]

Hey, I got a cold air intake and and exhaust, and will be putting on a ISIS intake mani and FMIC along with a Q45 throttle body and 255 fuel pump.. and im not sure how the tuning thing works will i need a different ECU or stand alone EMS, looking for some guidaince

Thanks

[Rex]

Moved to RB sub-forum

[legit240sx]

you should be fine with the stock ecu tuneStandalone is way beyond what your doing to this point.the fuel pump is fine with out the tunemani, throttle body, and fmic are fineexhaust and intake are fine

you should be good just swapin everything

[Sil240]

You'll NEED to tune when you put a bigger Turbo or bigger injectors on there.

You CAN tune when you do your mods, but it'd be a waste of time and money.

zer...25det

[havik420]

Yeah i want to go to 550 hp, next month i will be putting in n1 oil n1 water, cam gears and pully kit.. then 770 injectors and gt35r turbo.. then build for more security and maybe make it so i can take 10,000

thanks guys

[BigJuiceSr20]

Lemme know when you want to go standalone with PnP harness and base maps. I got something for you that's loaded with features and even has adaptive learning mode like a lot of OEM ecu's.

BTW...It's not Tec3

[240SXcoupeRB25]

if want to get to 500 hp homie i would jus rebuild your rb25det.cuz i have rb25det into my s13 coupe homie and its running stock 4 now until i rebuild my rb...

[SullivanRacing06]

wtf, can you spell correctly? i think homie needs is 650s, z32, the gt35r and a tune to make 450-500whp if tuned correctly

[240SXcoupeRB25]

if he is jus using stock internals to drift and drag ect..and all he did is put in a bigger turbo in it then he gunna have problems with his motor homie..i know i have already tryd it with my rb25det

[n8RPS13]

Hey homie try speaking english homie....and not using homie every other word homie...

[boosted98gst]

if he is jus using stock internals to drift and drag ect..and all he did is put in a bigger turbo in it then he gunna have problems with his motor homie..i know i have already tryd it with my rb25det

Not every motor is the same, each motor and tune are different. My buddy is running a complete stock long block except turbo, fuel cam's and springs basic stuff with a nice ems and has been over 500whp for a few years without any issues. It all comes down to how the car is set up and tuned, some people get lucky with their motors, others dont.

[SullivanRacing06]

turbo, injectors, maf, ecu n 255 are what you need to make serious hp, a i/m and other things are not needed.

if you tune it correctly youll have your 500 mark in no time, just be sure youve got a healthy motor homie

[240SXcoupeRB25]

thatz what am trying to do with my rb25det to make handle 500hp like nothing.But first am rebuilding my whole motor with better cams gears rods and ect to make jus right

[neonbomb]

Dayum homies this thread is fat

[rbsileighty]

Leakdown and compression check... figure out your starting point... tune will be key for reliability and at those levels it's more common to see a stock motor blow up than last

Don't forget... said it before... these are used motors and there's no getting around that fact. Understand your motor's current cond and procede from there... good luck and welcome to the world of RB's!

[havik420]

550 is where i am going to take break, Then i am doing s13.5 conversion and making sure everything on the outside is to the best i can make it, then the inside, and back to the motor and see how much money and how much of my life i can dump into it, 3 years is my time range for now