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Old 04-03-08, 06:10 PM
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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.
Old 04-03-08, 06:15 PM
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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
Old 04-03-08, 06:15 PM
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it should people do the opposite on S4s all the time.
Old 04-03-08, 06:18 PM
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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.
Old 04-03-08, 08:05 PM
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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
Old 04-03-08, 08:27 PM
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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
Old 04-03-08, 09:46 PM
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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.
Old 04-03-08, 10:06 PM
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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
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