After market fuel rails

[BobWrinkle]

I have injectors fuel pump and i am expecting a little man to drop my fuel regulator off any day now.

The question I have is HKS and similar fuel rails. Are they necessary on a 4g63? Will they improve my performance? Or will it just look cool

 

[tharaka]

no need.

 

[bazeng]

i personally dont think u need them..
the stock ones are already around the -10 size... even bigger

the lines we have are about a -4 size
-6 to -8 are used on the bigger hp cars..

 

[EVO-00X]

Is stock -4an? I think I read somewhere that it was -6an and it was fine for up to apparently 500HP?
Doesnt matter lol :lol: I'm gonna run with -8an which is more than enough for most applications as -10an is a bit of an overkill and mainly used by the big boys with 1000HP+. I've been told that there's probably no point using bigger lines from the fuel rail to the FPR only. If you dont upgrade ALL your lines (from the fuel pump to the rail and FPR and return back again) its considered a useless mod and just for looks.

Bob, it all depends on what you want and how bling you want it to look 8) . Most blokes buy items like these http://flyservers.registerfly.com/members5/autoalchemy.com/catalog/DSM_0001_FRIA.html and fit them to the stock fuel rail. You can also buy an aftermarket fuel rail and use earls type fittings and braided lines - its entirely up to you. This guide shows you what some of the big HP boys do http://www.cardomain.com/ride/225656/2 . :wink:

 

[BobWrinkle]

That looked the ****

By the end of the year I want every line on my car to be braided or silicon. 8)