I'm curious if this will work with a FI'd s2k (s/c guys to be specific). They say you should get rid of the FMU and get a AFPR and bigger injectors.

Could you say get bigger injectors, get rid of the FMU, but tee off the boost guage line and connect it to the stock FPR. Which should give you 43 psi of fuel static, plus 1:1 additional fuel pressure with each psi of boost. I don't know if that will work.

I've done it on my s/c'd tacoma with no affects, and it provides a constant 1:1 with boost.

Yay or Nay ? Or are there better and safer options ?

 

i would just go with the aem fpr just to be safe

 

You can run the bigger injectors w/ stock fuel pressure. You'll have to watch your injector duty cycle. This is assuming you have the proper engine management to drive the bigger injectors i.e. ems or e-manage.

 

I'm running 440's with the 7lb pulley on the stock FPR and my duty cycle is 100% at 8300rpm. The stock fpr doesn't rise with boost. Some people have gotten away with it but I ordered the AEM fpr. I plan to set my static fuel pressure at 55 which should make it see about 62psi with boost. Hopefully that will let me avoid buying larger injectors.