Looking to get s2s1 for my b18cr
do i need to upgrade injectors
will get rdx and walbro 190/5

 

injectors i would upgrade, but i dont think the fuel pump is necessary.

check out this link its cool and helpful
http://www.rceng.com/technical.aspx?...JwJPlAF1sCF5ld

 

Just curious as to why you chose those cams.

I would do a set of RDX injectors and a walbro w/ adjustable FPR as the RDX's tend to like a base FP of around 50psi. There is power to be had in the fuel system alone.

 

stage 1 as in tuner 1? or pro1 ? tuner 1 cams are pretty much the same came in the stock R.fyi

 

Don't change injectors unless you have engine management. Without engine management increasing fuel pressure would be a better idea.

If you have GSR cams, S2S1 are a nice upgrade. If you have ITR cams, there are gains to be had, but the delta is not as great.