will the fuel rails from a s4 work on a s5?

 

can you be more specific as to what you are trying to do?..Are you trying to do an s4 engine into an S5 Car?..(or??)

 

sry yeah I put an s4 engine into a 89 t2 but I currently have the s5 throttle body and fuel lines on the s4. I am pretty sure that the throttle body wont work because one is mechanical and the other it electrical but will the s5 fuel rails work on the s4

 

I think the S4 and S5 fuel rails are interchangeable... don't remember where I heard this but I think S5 fuel rails are better because of the pulsation damper being less likely to leak.

 

i'm not certain but i think there is a difference. i'm pretty sure the primary fuel rails are interchangeable but i dont think the secondarys are.i think the secondary fuel rail on an s4 is shorter than the rail on an s5

 

S4 fuel rails will work on S5, no problem...i have them on my car, which now happens to have S5 block and LIM

 

ok so will s5 rails work on a s4 motor as well then?

 

yeah