I'm currently building up a D16z6 and i plan on boosting it around 20psi with a fuel management system and upgrading the stock parts. I've seen some cars boost around that psi and not upgrade the fuel rail and regulator. Are these things something that i should upgrade or not? I'm upgrading injectors, pump and putting on management so. What do you guys think?

 

a stock honda fuel rail can handle like 600 hp or more. but the aftermarket ones look nice and they can offer fittings for gauges and what not.

 

i've 'heard' stock fuel rails and pumps can start surging at about 250whp

 

The reason y i was asking was because i saw a Type r engine in a 95 civic that is running of a stock fuel rail and pushing 30 psi and around 700+ horse power. I was in a Honda Tuning mag back in last summer. I was amazed by it and it got me into turbos.