i just wanted to know if it can be done.. what needs to be changed and is it worth it...ive heard that some people that run in scca ITS spec rx7's convert to the s5 manifold if they start off with an s4...ive search and have come out empty handed..thanks
ismael

 

yes

 

what do i need to do the conversion?? s5 harness?? s5 ecu??
thanks

ismael

 

You can just use the S5 lower and upper intake manifold. You will also need to use the S5 Prime and secondary fuel rail. Everything else would work and some with minor modification to fit correctly.

 

If you change the fuel injectors doesn't the wiring harness need to be changed too?

 

well he sait just to change the fuel rails so i think it should be fine anyway i think the injectors are the same correct me if im wrong.... what do u mean by minor modification??
thanks

ismael

 

if dont dont use the middle section would it still be worth the trouble?

 

the fuel injector clips on the wiring harness from S4 to S5 are different is what I'm saying.

If you want the swap I have a S5 harness ecu intake manifolds & fuel rails available.

 

oh ok gotcha lol

 

This has been covered more than once. Here you go:
http://howto.globalvicinity.com/gv_w...i=63&co=1&vi=1