would 3gen 960cc injectors work on a my tII secondaries

 

I know that, FD injectors are "side feed" and FC are "top Feed". So...I would say no, unless you get a different fuel rail.

 

thanks

 

Only the primaries on the 3rd gen are side feed, the secondaries are top feed. If you have a S5 TII they should drop right in.

 

would it work with a s5 fuel rail on a s4 with 3gen injectors lol

 

All stock FD injectors are SIDE FEED. Primaries are 550cc, secondaries are 850cc.

so it will not work with the stock Tii fuel rail.

 

^yup

You need to look for common TOPFEED injectors.

Common swaps are 720cc's

S4/S5 fuel rails swap fine. I think on mine I needed a washer as a spacer but that may have been due to the bolts length and not manifold/injector height.


If you have a S4 then you may want to look into the Rtek ECU upgrade which will allow you to use 720's without redoing your fuel system(SAFC/Haltech/etc...)