would an s4 motor work in an s5 if oyu change the wiring harness and ecu because i may have found a good deal on a motor and i wasn't sure.

 

u have to swap more then the ecu and harness its more complicated then u think but if its a really good deal on the s5 it might be worth it..just read through the faq section

 

it should people do the opposite on S4s all the time.

 

i was hoping it would the car i have is a n/a s5 but i am going to put a TII motor in it and i am looking for the best deal and jsut about all i can find for decent prices that aren't jdm are s4 motors.

 

well for starters your gonna need ecu,boost guage,harness,dp,air flow meter,knock box,and im not sure what else but theres more.and if its a t2 u are gonna need to change your trans rearend and driveshaft (if u want to put donw lots of power) and secondly the jdm motors are so cheap becasue theya re 90% shitty and need to be rebuilt anyway u can get a s4 t2 motor for $1500 or less here why worry about overseas shipping and that gets u a built good to go motor

 

ive already got the trans driveshart and rearend full exhaust all i need is a motor with ecu and wiring harness. i didn't want to get a jdm thats why i wanted to know if an s4 motor and wiring harness would work in an s5 because i have an s5 andi can get a running s4 motor with ecu and wiring harness for a good deal

 

Question..is the New engine going to Be a TII?..is the old Engine,IN the car right now,an N/A?..either Way it just isn't a walk in the Park...S4 Guys can use the S5 Keg and dress it up to Run as an S4.(N/A)..if the car is S4 and you put in an S5 TII,.then the best thing IMHO is to go to a standalone Fuel system.The wiring Will Make you Pull your hair out,If you remain Stock.

 

yea the new engine will be a TII and it was an n/a. I wasn going to change the harness and ecu out if i get the motor i am looking at i jsut want to make sure it will work before i spend money on it