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Thread: DIY adapter 1/8 npt fuel pressure sensor to fuel rail

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    Default DIY adapter 1/8 npt fuel pressure sensor to fuel rail

    Not sure how many people have run across this problem, but I thought I would post my solution.

    I need to mount a fuel pressure sender on the fuel rail, but no one makes AN4 to 1/8 NPT adapter. The LS dakota got a hobbled up 3-piece adapter that cost way too much money for what it does. So I decided to fabricate my own adapter from a very inexpensive AN4 female to AN4 male pressure port adapter. Initially, I planned on capping the AN4 male end, but it was too long to fit under my engine cover. So I cut it off, tapped it for 1/8 NPT and added a brass plug from Lowes. Now I have the option of straight or 90 mounting location.

    LSDAK 3-piece adapter.






    Started with this.





    But it wouldn't fit under my engine cover.





    Cut the male end off.





    1/8 tap.





    Drill it out with appropriate size drill bit. In this case, 21/64 drill bit.





    Tap, thread in 1/8 brass plug. Done.


    Last edited by casias; 09-26-2016 at 07:01 AM.
    1999 Dakota LS-swap. Fastest NA 5.9/6.0 full-weight CC. 12.76 at 109.9.
    2000 Durango ZL1 AWD.

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    Racetronix makes the female -4 to female 1/8th npt, they also make the same thing ina swivel 90*

    http://www.racetronix.biz/itemdesc.a...AF-418&eq=&Tp=

    Have one on my truck, works perfect.
    Quote Originally Posted by slammedR/T View Post
    Here is a secret if you 1/8 mile time is shitty, then your 1/4 mile time will be shitty too......
    Google Blue Waffle, I dare you.


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    Quote Originally Posted by SupaMan86 View Post
    Racetronix makes the female -4 to female 1/8th npt, they also make the same thing ina swivel 90*

    http://www.racetronix.biz/itemdesc.a...AF-418&eq=&Tp=

    Have one on my truck, works perfect.
    Nice to know. Good price too. I searched for a while but didn't see this one.

    Edit: No wonder it didn't come up in my search. They have it listed as -4 an MALE to 1/8 FPT. The opposite of how they list every other fitting they sell. Weird.
    Last edited by casias; 09-26-2016 at 07:22 AM.
    1999 Dakota LS-swap. Fastest NA 5.9/6.0 full-weight CC. 12.76 at 109.9.
    2000 Durango ZL1 AWD.

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    Ah true i never caught that, its definitely female tho!
    Quote Originally Posted by slammedR/T View Post
    Here is a secret if you 1/8 mile time is shitty, then your 1/4 mile time will be shitty too......
    Google Blue Waffle, I dare you.


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    I would loose the teflon tape on the fuel side. JMO rank amateur opinion. Russell has some really good fuel proof thread sealant I used on everything. I will say you are creative


    "The journey is more fun than the destination"

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    Quote Originally Posted by WhiteRT View Post
    I would loose the teflon tape on the fuel side. JMO rank amateur opinion. Russell has some really good fuel proof thread sealant I used on everything. I will say you are creative
    How did I miss this post? I will tell you my amateur teflon tape has lasted longer than your full-race fuel lines.
    1999 Dakota LS-swap. Fastest NA 5.9/6.0 full-weight CC. 12.76 at 109.9.
    2000 Durango ZL1 AWD.

  7. #7

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    Quote Originally Posted by casias View Post
    How did I miss this post? I will tell you my amateur teflon tape has lasted longer than your full-race fuel lines.
    I was calling my opinion rank amateur - you know I know nothing, I admit that. And you are stuck on fuel lines. I have no issues now. You should make sure to call all the other people online idiots too. Here is a news flash, I didnt make the fuel lines, Russell did.

    And FWIW I was trying to tell you that the tape may not be the best.


    "The journey is more fun than the destination"

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    Friggin' R/T's Avatar
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    Quote Originally Posted by casias View Post
    How did I miss this post? I will tell you my amateur teflon tape has lasted longer than your full-race fuel lines.
    Quote Originally Posted by WhiteRT View Post
    I was calling my opinion rank amateur - you know I know nothing, I admit that. And you are stuck on fuel lines. I have no issues now. You should make sure to call all the other people online idiots too. Here is a news flash, I didnt make the fuel lines, Russell did.

    And FWIW I was trying to tell you that the tape may not be the best.
    Tape looks like shit.

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    Loctite thread sealant, way better than tape, also tape can break off and clog stuff, just saying.......
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    I've used tape for at least 20 years. None of the mentioned issues have happened. And it doesn't dry up in the tube.
    1999 Dakota LS-swap. Fastest NA 5.9/6.0 full-weight CC. 12.76 at 109.9.
    2000 Durango ZL1 AWD.

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    Quote Originally Posted by casias View Post
    I've used tape for at least 20 years. None of the mentioned issues have happened. And it doesn't dry up in the tube.
    Loctite thread sealant doesn't dry up in the tube, go tell any of the nitrous companies what you just said, they will laugh you off the phone! I have personally fixed a couple peoples nitrous issue by finding pieces of Teflon tape in they fuel solenoid and yes the nitrous solenoid also.
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    Quote Originally Posted by slammedR/T View Post
    I can show you thousands of examples of sloppy work. And I can show you how to use something correctly. I am the latter, not the former.
    1999 Dakota LS-swap. Fastest NA 5.9/6.0 full-weight CC. 12.76 at 109.9.
    2000 Durango ZL1 AWD.

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    Quote Originally Posted by casias View Post
    I can show you thousands of examples of sloppy work. And I can show you how to use something correctly. I am the latter, not the former.
    LOL, Ok if you say so, but I can tell you this for fact if you try to argue with Steve Johnson, or Monte Smith, or Steven "fast" Jackson about Teflon tape on nitrous fittings they won't ever talk to you again and they are the baddest nitrous tuners in the country! I see them every once in awhile on yellowbullet have to correct some of these hilljacks wanting to figure their nitrous issues and claiming Teflon tape works just fine......
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    Don't argue with him. He's using copper pipe and fittings for his coolant feed and return with Teflon tape one the fittings. Don't try to argue the fact on other systems to include nitrous that the properties of what you are trying to seal is corrosive. This hack knows everything and could teach us a thing or two about saving a few dollars while setting ourselves up for failure. " it worked on my junkyard LS build" GTFO already
    2000 CC
    11.37@122


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    This is gonna get interesting

    Project Maverick. I feel the need, the need for speed

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    But it is fun to post facts and get poppycock for a reply.......
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    Quote Originally Posted by slammedR/T View Post
    But it is fun to post facts and get poppycock for a reply.......
    It's ok. I'm on your side.

    Project Maverick. I feel the need, the need for speed

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    Hey, at least I'm keeping it civil, some of you remember how I use to be
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    Quote Originally Posted by slammedR/T View Post
    Hey, at least I'm keeping it civil, some of you remember how I use to be
    I miss that guy....just sayin'
    2000 CC
    11.37@122


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    Quote Originally Posted by Lonesoldier79 View Post
    I miss that guy....just sayin'
    Bro, don't say that..... I been thinking about bringing him back many times......
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    Lol!!!


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    Quote Originally Posted by slammedR/T View Post
    LOL, Ok if you say so, but I can tell you this for fact if you try to argue with Steve Johnson, or Monte Smith, or Steven "fast" Jackson about Teflon tape on nitrous fittings they won't ever talk to you again and they are the baddest nitrous tuners in the country! I see them every once in awhile on yellowbullet have to correct some of these hilljacks wanting to figure their nitrous issues and claiming Teflon tape works just fine......
    Not sure where you got the idea that that was a nitrous feed. That is a fuel pressure sender.

    So tell me, besides name dropping guys that I don't know, and showing me a picture of someone's sloppy work, what exactly is the issue with teflon tape?
    1999 Dakota LS-swap. Fastest NA 5.9/6.0 full-weight CC. 12.76 at 109.9.
    2000 Durango ZL1 AWD.

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    Quote Originally Posted by Lonesoldier79 View Post
    Don't argue with him. He's using copper pipe and fittings for his coolant feed and return with Teflon tape one the fittings. Don't try to argue the fact on other systems to include nitrous that the properties of what you are trying to seal is corrosive. This hack knows everything and could teach us a thing or two about saving a few dollars while setting ourselves up for failure. " it worked on my junkyard LS build" GTFO already
    This from a guy that spent how much for something that, what, caught on fire, I think?

    Your truck was built by the biggest hack on the planet.
    1999 Dakota LS-swap. Fastest NA 5.9/6.0 full-weight CC. 12.76 at 109.9.
    2000 Durango ZL1 AWD.

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    Quote Originally Posted by casias View Post
    Not sure where you got the idea that that was a nitrous feed. That is a fuel pressure sender.

    So tell me, besides name dropping guys that I don't know, and showing me a picture of someone's sloppy work, what exactly is the issue with teflon tape?
    Teflon tape is old out dated plumber technology that has no place on a vehicle in this day and age. Teflon tape can and will break off small pieces and clog things like nitrous solenoids, and oh I don't know FUEL INJECTORS!!!!!!
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