rob7 Posted June 12, 2019 Report Share Posted June 12, 2019 Hi this might seem a silly question but am fitting a Ecu and have put a pressure regulator in the engine bay does the fuel go though the regulator then to the fuel rail or the other way round Rob Quote Link to post Share on other sites
JochemsTR Posted June 12, 2019 Report Share Posted June 12, 2019 (edited) Rob, fuel thru rail then thru regulator. From regulator back to tank. Jochem Edited June 12, 2019 by JochemsTR Quote Link to post Share on other sites
rob7 Posted June 12, 2019 Author Report Share Posted June 12, 2019 Thanks Jochem Quote Link to post Share on other sites
CK's TR6 Posted June 13, 2019 Report Share Posted June 13, 2019 That is how I did it, however, with fuel pumping around in a big circuit with both lines in the T shirt area, the fuel got wicked hot. I have subsequently rerouted one line out of that area. My neighbor, who is a big time hot rod guy, is doing something completely different on his 57 vette. The pump and the regulator are in the tank. A MAP line is connected from the manifold back to the back of the car to a fitting on the side of the tank which then goes to the regulator. Only the pressure referenced fuel line goes to the fuel rails. Cuts down on noise, return lines, etc and is much safer. Most ECU's have a air purge code upon initial start up so that isn't a problem. Quote Link to post Share on other sites
JochemsTR Posted June 13, 2019 Report Share Posted June 13, 2019 Fuel getting hot I shielded the lines in the TShirt area....another possibility is to install fuel radiator on the return. I heard about rerouting the lines inside the car but I opted not to and will have to wait till I experience any problems. However, I have a fuel temp sensor to monitor the fuel temp. Just figuring out a location where it actually makes sense to install. Jochem Quote Link to post Share on other sites
CK's TR6 Posted June 13, 2019 Report Share Posted June 13, 2019 (edited) I had shielded the lines and had shields on the exhaust pipes. The fuel got so hot, you couldn’t touch the fuel rail comfortably. I live in Phoenix, so heat is a big issue. Now, the rail is a bit cooler than the plenum. Edited June 13, 2019 by CK's TR6 Spelling Quote Link to post Share on other sites
PodOne Posted June 13, 2019 Report Share Posted June 13, 2019 I used to run the pump in the tank to keep it cool and braided lines well away from the exhaust on the outside of the shell, safer in the event of fire. To keep injectors inlet side cool use polyprop isolation gaskets on the throttle bodies I was surprised just how much difference this made, while you could not touch the cam cover you could keep your hand on the plenum even after a thrash on a track. The other benefit is that the fuel returned to the tank remains cooler as the rail is on the cool side. Quote Link to post Share on other sites
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.