JoeLAW Posted July 18, 2014 Share Posted July 18, 2014 Hey guys so as some of you have checked out my build thread, I have an '06 engine of a TJ on my MJ, and the PO either did not want to struggle with adapting and finding stuff for keeping the HO intake manifold, or (what I think happened) he probably bought a wrecked/salvaged TJ and the original manifold was probably cracked so he just installed the old renix on it to get it running. Anyways, I already got me a new set of Headers, and the HO intake manifold and of-course bolted right on, but the only doubt I have is that on the old Renix fuel rails it had what I think is a Fuel Pressure Regulator, and a Return Line? Anyways when I got the new fuel rail and Injectors ( :brows: score! for $19.00) at the JY it only has one port, or entry instead of two, as the old Renix fuel rails do. So Basically my question is, do both fuel lines that come from the gas tank spit out fuel? if that was the case could I just cancel out one? or What should I do? Anyways those are my doubts, any Help is Greatly Appreciated! PS: I know I've been slacking a lot on wrenching on my truck and posting on my thread so please forgive me and give me $#!& about it so I can get back at it my friends here haven't stopped but Ill take any sort of motivation over no motivation at all! haha Oh and don't feel bad for talking smack! hahaha :yes: Link to comment Share on other sites More sharing options...
onlyinajeep726 Posted July 18, 2014 Share Posted July 18, 2014 Up through the '95 models (on XJ's), the fuel system had a supply and a return to the fuel rail. You can adapt the two-line HO fuel rail to work with the Renix fuel lines, but you'll have to get the appropriate compression fitting. I used some Earl's fittings from Summit. You'll need two compression fittings and two -AN barbed fittings. Also, you'll need some fuel injection hose, some fuel line hose and some hose clamps. There is a significant difference between injection and line hose. Also, notice the two types of hose clamps and their location. Fuel line-to-rail adaptation.Steel hardline-to-softline adaptation. Earl's compression to -AN fittings from Summit Racing. Good for up to 50psi.Not the best picture, but this is a bracket I made to keep the fuel lines as far away from the exhaust header as possible. Link to comment Share on other sites More sharing options...
JoeLAW Posted July 18, 2014 Author Share Posted July 18, 2014 Awesome Thank you so much for your Reply! :thumbsup: onlyinajeep726 so Basically all the fuel rails from 91-95 have the FPR(Fuel Pressure Regulator) and both a supply and return port? And also is the mounting pattern for the fuel rail the same for all the HO intakes until it changed again on the '99+? Basically I just want to make sure I can get a 91-95 fuel rail and mount it on my 96 HO intake. Link to comment Share on other sites More sharing options...
onlyinajeep726 Posted July 18, 2014 Share Posted July 18, 2014 All the '91+ intake manifolds will accept an HO fuel rail (AFAIK). I have the '91 - '95 fuel rail on an '00 intake. And yes, anything before '96 has a supply and return line. '96 is the first year to use a returnless fuel system. (In reality, the fuel system on the '96+ has the FPR and return within the tank. The running pressure to the rail was also increased in this year.) Link to comment Share on other sites More sharing options...
JoeLAW Posted July 18, 2014 Author Share Posted July 18, 2014 Oh Bitchin! :eek: Cool! :clapping: Awesome! :rock on: Badass! :rotfl2: Yeeeehaaaaww!!!! :banana: Thanks man now I'm just a trip away from the JY! :bowdown: Link to comment Share on other sites More sharing options...
88ComancheMitch Posted July 18, 2014 Share Posted July 18, 2014 I'll do a write up on this for a Renix wiring harness and such as soon as I get a chance. Should be sometime this weekend. It will be as extensive as possible. Link to comment Share on other sites More sharing options...
Jeep Driver Posted July 18, 2014 Share Posted July 18, 2014 Why can you not use a T back at the firewall? and only one line to the intake? All you are doing is allowing the over-pressure fuel to return to the tank. Link to comment Share on other sites More sharing options...
onlyinajeep726 Posted July 18, 2014 Share Posted July 18, 2014 I'll do a write up on this for a Renix wiring harness and such as soon as I get a chance. Should be sometime this weekend. It will be as extensive as possible. The pictures I provided are from when I put in my stroker in my '88 XJ. It uses all the Renix stuff. I adapted the TPS to work and everything else. Link to comment Share on other sites More sharing options...
HOrnbrod Posted July 18, 2014 Share Posted July 18, 2014 91 fuel rail & Hesco adj. regulator on an 01 intake. Also the throttle body hole on the new intakes is 62mm vs. 60mm on the early HOs, so it's best to use a bored out 62mm throttle body. Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now