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I figured this would be a good time to start a discussion about fuel rails. I'm trying to figure out the difference between using an aftermarket fuel rail and an oem fuel rail in terms of tuning. In my situation, both rails will use 1000cc FIC injectors and will be returnless. I need to figure out how to adapt a K-Tuned rail to my 06-11 Si without running a return line. IIRC, I need to use the oem fuel damper with my setup. Thanks in advance for your help.
Truthfully I would just not waste my time and keep the OEM if you aren't going to build a return line and need the burp valve.
Yeah I'm with Spaz on this one .. unless it is for looks I would stick with the stock fuel rail, couldn't imagine there being any bump in performance or any tuning related issues.
One of Hybrid rails does have an input for the factory pulse dampener that you would need to run if your staying returnless.
It's for looks. I want to swap it for the OEM rail but I want to make sure it works the way it should. No issues, no fuel starvation, etc. What would I need to make it work?
Quote:
Originally Posted by Si Speed 317
You'd want a return line with a fuel pressure regulator built off boost verse one constant pressure setting :) This will lower your fuel injector duty cycle making them more efficient and keep a more even constant flow a fuel to them. As much as you don't want to run a fuel return line I will argue with you all day that if going turbo you will want to so you can run an Adjustable FPR based off of vacuum pressure and keep fuel flow constant/consistent and run more pressure to the injectors than the stock FPR can do.
I agree 100%, but the funds aren't there in the mean time. I plan to do it in the future, but in the mean time I'm stuck without one. So I need to run an adapter for the OEM damper, just need to figure it out.Quote:
Originally Posted by Spaz
or... just leave the stock rail... paint it, polish it, do whatever and just save the new rail and start collecting the matching parts/accessories. Before i bought my HR I sanded down and painted my factory one and it looked a lot better
Its really that big of a difference? I'd rather not show up.to Honda Day with a stock fuel rail, but ill see what I can do. Wanna PM me a mini write up on how to tuck the wires that sit in that plastic case on top of the oem rail?Quote:
Originally Posted by Spaz
Is it that big of a difference if you use the aftermarket rail without a return? As long as you have the OEM damper, you should really be fine. Especially if it's a rail just for a show.
i did mine a bit in april, looks a ton better!! also tapped the bottom of the mani and ran the brakebooster and evap line there.Quote:
Originally Posted by Si Speed 317
but it looks alot better on the RSX because of how the heater lines and upper radiaor housing run compared to the si
^ Snap a pic for me? I want this to look fresh, no pun intended lol. I want to figure out how to clean up the injector wires etc but I haven't found a DIY on that... Spaz? :wavey:
Quote:
Originally Posted by Si Speed 317
Bring me your car I'll tuck that shit :thumb:
ya for sure man, ill take on in the morning for youQuote:
Originally Posted by Si Speed 317
take it to him Dan!!!!!!! i wana see the spaz attack on a 8thQuote:
Originally Posted by Spaz
If only Spaz didn't live so far away, I would. How long is the drive from NY to you? And thanks fresh
Here you go Dan, I need to do something bout those injector wires.
Btw it looks a little bit cleaner because I have a RSX VC and the Si one has all those ugly holes in it for that bracket that goes on it
Btw how do u like my coolant resivor ;)
http://i19.photobucket.com/albums/b1...m/bcaeeb90.jpg
http://i19.photobucket.com/albums/b1...m/61853640.jpg
^i use an inverted allen head and it looks super clean..
I have a square fitting, unfortunately. Still does the delete job though!
btw the push lock air fittings are amazing i highly reccomend them but if u have em near a really hot spot u need to wrap it in a fire jacket so it dont melt
Post a pic of the fittings you used
What's the thread pitch of that port that you guys plugged?
On the opposite end of the feed (where the return would go)? I'm not sure, but it's an -8an port IIRC
on the right of the rbc?Quote:
Originally Posted by Adm_rsx
Nah. The injector heater hose. That sensor that's on the right of the RBC.
Oh, I have no idea haha sorry man