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I have an S5 Turbo FC imported from Japan. I just got RC fuel injectors from TRE Performance (550cc primary, 750cc secondary), a high-flow pump, and an adjustable aftermarket fuel pressure regulator. Does anyone know what the best aftermarket fuel rails would be for these injectors/engine? Or just have general recommendations?
And yes, I do plan on going standalone as soon as I can. The larger secondaries are just to prepare for that. I don't plan on running the car very much before I get a Haltech, just enough to know the car isn't junk since it used to be some guy's racecar in Japan
Yes, I did replace it. Though I still own it and have it in my friend Tim's storage lot. It may have been destroyed by some idiot in a Mercedes, but that doesn't mean I'm done with it, even if it takes years to see any progress. For the crashed one, I'll go into detail in a video on my YouTube channel in the next couple of months. I have to wait because there's currently over a foot of snow on everything, including that car's cover
This "new" FC is not only my first Turbo FC, but the first turbocharged car I've ever owned. The only turbo cars I've driven before it were my friend's Civic when we tuned it about a year and a half ago and my friend Michael's ~350 whp FD back in June. I saw it on Marketplace for $11k and had it shipped up here from the rotary shop in Texas that was selling it. Honestly, it's in pretty rough shape, but that's mainly just the body. Sometime in the spring or summer, I'm going to sand it down, fix any dents, remove and repair any rust, then send it to get repainted. It also does have a bumper, we just took it off to make it easier to put on the trailer, and I kept it off because it was ridiculously ugly. I bought a new bumper and polished up all of the lenses, so those will go on. I also know for a fact it used to be some guy's drift car in Japan since it has an e-brake drift button and clearly used to have a roll cage. But despite that, my insurance literally won't let it be valued at any less than $30k. There's a few things making us think it might be an Infini III, so we're trying to see if there's a way to get a definitive answer. If it is, their system won't let us value it at anything less than 50k
I have a video of it pulling a few times, but I'm not sure if I can attach it to this post. If I can, I will. It feels like my friend's FD did, so it's definitely fast. I replaced the alternator and battery with the FD alternator from my old FC and a brand new battery from Costco. I then let it sit for like 4 days, and suddenly it sounded awful when it ran, didn't like to stay alive, and felt low on power. My AFR gauge also couldn't get a reading. My assumption is that one or more of the fuel injectors on one of the rotors was stuck open, causing it to dump so much fuel that it couldn't ignite. I wanted to upgrade the fuel system anyway in preparation for a Haltech ECU, a bigger turbo, and a V-mount setup, so I decided to just replace them all. I got the injectors and regulator in the photos above as well as a 340 lph fuel pump. I was wondering if anyone knew what the best fuel rails for my setup would be, or if I should just stick with the stock fuel rails but modify them for the adjustable regulator
Pictures of it The wing is from my old one, and isn't actually attached yet Tail lights and center piece I got for $300 and fixed myself New cluster I got for $150 Those mirrors are from my old one too. I liked them too much to not put on this one. I also took off the center caps so it's easier to just take the wheels off for working on it until it's streetable
Last edited by gavinhogberg; Dec 9, 2025 at 11:05 PM.
You're probably best using the stock rail since those should just drop right in. An aftermarket rail would make sense if you were upgrading to modern ID style injectors (EV1)
