As everyone may know, Honda stock fuel systems are efficient up to a point. As for K-series I would like to know when an upgrade to the stock fuel system should be considered. Granted that upgrading before neccessary is perfectly alright.

I have a CN stg.1 on my 02 Si and no upgrades to my stock fuel system are required, I thought this was amazing. I have been running over a year now with racing my car at the track boosting as much as 11psi with Guardian. Stock fuel system other than 550cc injectors. No return fuel line, No upgraded in-tank or in-line pump.

The time has come for me to get a K-Pro and a custom tune. I am astonished at all the features you get for its' cost, not to mention the fact that tuning is essentially reprogramming the stock Honda ECU . (The best tuning IMO)

My question is, when does it become neccessary or even a good decision to upgrade the fuel sytem components such as the pump, fuel rail, return line, etc? How long can I ensure reliability and safety utilizing my stock fuel components? In other words, at stg.1 levels of boost, How do I know I can depend on the stock fuel compionents?

Thanks,


Evan

 

I wanna know too... bump it up

 

bump

 

So far I've heard that the the stock fuel system is good for 280-300 whp as a general rule of thumb.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by WPB EP3 &raquo;</TD></TR><TR><TD CLASS="quote">So far I've heard that the the stock fuel system is good for 280-300 whp as a general rule of thumb.</TD></TR></TABLE>

From what I've read, the OEM pump starts failing at 300 to 320whp. Many people are running OEM everything, except for injectors and pumps making serious HP/TQ.

 

WPB EP3......what kind of mods have you done to get your car to 11psi without the k-Pro.....i have the k-pro, apexi boost controller, but only the k-pro is installed as of now.....yes i have a turbo and all that.....but assuming this, what are you working with? im interested in boosting to 10psi.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by nos4a2si &raquo;</TD></TR><TR><TD CLASS="quote">WPB EP3......what kind of mods have you done to get your car to 11psi without the k-Pro.....i have the k-pro, apexi boost controller, but only the k-pro is installed as of now.....yes i have a turbo and all that.....but assuming this, what are you working with? im interested in boosting to 10psi.</TD></TR></TABLE>

I have a CN Stg. 1 Kit running a Guardian E.I. (piggyback)
Stock fuel components except for Injectors ONLY. Pump is stock, no return line, no inline pump, nothing else beside injectors. My motor once saw 13 psi until i was cut at like 5500 rpms. That was a mistake....stupid cheap *** manual boost controller. Dont ever get a cheap plastic manual boost controller.

I am running stock MAP sensor. If Guardian can supply enough fuel, you can run as much boost as you want. 10psi is the recommended max. Anything over is at your own risk. I cant wait to get my K-Pro though, I want to custom tune everything, stage my boost, and have launch control.

10psi is somewhere around 280-290whp


Evan