Stopsign32v

iTrader: (1)

I did a bit of searching and came up with factory fuel rails are good to around 600hp. Now your average turbo Honda is anything but 600hp so why do people change their fuel rails?

turboLScrx

why change your rims or tint windows or anything of the such? Much is cosmetic and some is functional. I personally enjoy having the custom lines and external regultor and the port for a fuel gauge.....and of course going above 600whp

Txdragon

^^ Couldn't have said it better myself!

piggy96

Nailed it. The external regulator was the main reason for me, and looks much better than the stock.

DaX

iTrader: (1)

Same as above - it was mostly an aesthetic choice for me.

TheShodan

iTrader: (14)

some are cosmetic. My changes were made due to upgraded fuel components in which the fuel rail was the main restriction. Just because a component can hold a certain threshold, doesn't automatically mean you should try and reach that threshold simply because you don't want to spend the money.

Stopsign32v

iTrader: (1)

Well I'm certainly not going to be shooting for 600hp. I do think I will be using a fuel pressure regulator though.

Txdragon

Aeromotive makes a good on-rail regulator, AEM regulators have been iffy..

Stopsign32v

iTrader: (1)

Aeromotive is solid stuff, that was the route I was going to go. I will be using Grams 750cc injectors, not sure if they will work on factory rails or not or even if I should run factory rail. I just hate dealing with A/C and fuel lines, to me they are such a pain.

TheShodan

iTrader: (14)

I had an aftermarket fuel rail and FPR at only 350whp. It's not about the power level. It's about the utility of the project and how much adjustability you want now or later. It's just nice knowing that after 15 years of most of my fuel setup, I really don't have to purchase anything twice. A good inspection and I'm done.

Some of us just plan way ahead..

NVturbo

I'm still utilizing the stock fuel rail but Aeromotive FPR. Why change the fuel rail when the stock one still works?!!

Txdragon

Aren't there some aftermarket injectors that won't fit in the stock rail?

2kdrift

some of us really wanted Fuel gauge on Rail....I know it sounds weird when you can add to the stock filter.....others like me have aftermarket filter and rather then fabricate a gauge somewhere, spent $100 for the simplicity and added flexibility for external FPR if ever needed

AZ_CIVIC

iTrader: (1)

My stock fuel rail only holds 4 injectors I need 8 LOL

NVturbo

I'm sure there are some like that. The ones I have fit fine.


simple solution: get a fuel pressure gauge for the FPR. The "Marshall" gauge I have was like $20.

DaX

iTrader: (1)

"8-second problems"

2kdrift

to each there own....I agree its not necessary just preference fuel rails are pretty cheap. spent $100 for the easy hookup to aftermarket filter / gauge and never looked back

LightningTeg

I wanted a stand alone regulator which required it. Less hacks, more straight forward AN to AN-O fittings etc.

wunfstgsr

Stock FPR is also good well past 600 WHP.

Skunk2 Rails claim to cool down the fuel a bit but who knows if its just Jazz there talking.

2kdrift

Depending on pump. Most pumps require aftermarket otherwise pressure spikes at idle and slowly gets closer to target pressure dependant on fuel consumption

TheShodan

iTrader: (14)

the stock rail may "be good" to 600hp. but A) I'd never test that limit in my own vehicles & B) that doesn't mean it allows for fuel pressure adjustability without causing stress to other hard parts of the fuel system.

Txdragon

If they're composite material and not aluminum or anything like that, they would be almost immune to heat soak, but, that's a bit of a stretch to claim to cool down the fuel. Lol!

JRCivic1

The Proper claim would be "fuel temperatures will be cooler than those found in an aluminum fuel rail because composite material does not heat soak and thus, will not transfer heat to the fuel as it runs through it". Maybe that is what Skunk2 "Meant" to say...

Txdragon

^ Nail on the head right there!

turbociv910

i just did it for the jdm points