Single Turbo RX-7's Questions about all aspects of single turbo setups.

Embarassing: Aftermarket fuel rails/line hookup?

Old Jul 7, 2010 | 01:21 AM
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Embarassing: Aftermarket fuel rails/line hookup?

So I am bringing my FD to single turbo and I am doing all the work myself and I received my fuel system and I'm trying to figure out where I run my lines. I removed the rats nest/hard fuel lines so if anyone could help me with a diagram or pictures that'd be great.

Also, where/how do I wire these resistors?

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Old Jul 7, 2010 | 09:44 AM
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basically... the fuel pressure regulator is the last thing before the fuel returns to the tank. its at the end of the system.

from the tank it goes.

tank... filter... tee... fuel rails... FPR... tank. IN THAT ORDER.
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Old Jul 8, 2010 | 05:14 PM
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couple ways
BAM
http://kgparts.com/forums/tutorials.php?do=view&tutid=2
http://www.nopistons.com/forums/topi...ments-welcome/
https://www.rx7club.com/3rd-generation-specific-1993-2002-16/fuel-system-upgrade-how-write-up-kgparts-kit-404091/
http://www.3rdgenrx7.com/keithshowto.htm
https://www.rx7club.com/showthread.p...jector+spacers

yeah, I've got them all bookmarked, I recently did the secondary rail and FPR on my car.
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Old Jul 8, 2010 | 07:40 PM
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Do not, do not, do not wire in the resistors. Toss them in the trash and buy an FJO injector driver. You'll thank me later. Search in the 3rd gen tech section and there is a thread with an install how-to.
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Old Jul 8, 2010 | 09:42 PM
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I wired in resistors, wish someone had told me not to sooner. Or for an extra 100-150 dollars, buy injector dynamics high impedance 2200 cc injectors (id2000s)

edit: rich, talking about this thread?
https://www.rx7club.com/showthread.p...ello+peak+hold

-Kyle
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Old Jul 9, 2010 | 02:47 PM
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Rich what exactly is the FJO injector driver? Did a quick search and found this thread/install DIY. Do you suggest I follow that?

https://www.rx7club.com/showthread.p...njector+driver
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Old Jul 10, 2010 | 07:18 AM
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yes to the FJO Peak and Hold. all details are in post one of my thread.

remember the primary law of FD modification:

it never ends $

HC
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Old Jul 10, 2010 | 11:10 AM
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Originally Posted by KKMpunkrock2011
I wired in resistors, wish someone had told me not to sooner. Or for an extra 100-150 dollars, buy injector dynamics high impedance 2200 cc injectors (id2000s)

edit: rich, talking about this thread?
https://www.rx7club.com/showthread.p...ello+peak+hold

-Kyle
That's Howard's thread, lots of very good info there

Originally Posted by HardHitter
Rich what exactly is the FJO injector driver? Did a quick search and found this thread/install DIY. Do you suggest I follow that?

https://www.rx7club.com/showthread.p...njector+driver
Yes, that's the one. I detail in post #8 how I installed mine, it's worked flawlessly from the first startup, DGRR and pair of road race days
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Old Jul 10, 2010 | 01:02 PM
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Howard, I'm glad that for the RX7 it never ends..why? because once you finish with a car what else is there to do but sell it and find another project? lol.

I'll go ahead and shoot you an e-mail.

Where did you guys pickup your FJO setup? Just google searched and bought it or is there a specific version for our FDs
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Old Jul 10, 2010 | 02:33 PM
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here's the dealer i work with...

http://www.alamomotorsports.com/fjo/

howard
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Old Jul 12, 2010 | 03:54 AM
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Originally Posted by HardHitter
So I am bringing my FD to single turbo and I am doing all the work myself and I received my fuel system and I'm trying to figure out where I run my lines. I removed the rats nest/hard fuel lines so if anyone could help me with a diagram or pictures that'd be great.

Also, where/how do I wire these resistors?

So I was showing my mate some stuff on here on sunday and i open this thread and he see's the areomotive reg and says, Oh, is that a good one? and im like, Yea bro theyr pretty mint aye, and hes like, ok sweet, go's to his shed and brings back a reg and walbro inline and gives them to me, came off a stolen car that was being built into a drag car and he was being busted for growing weed, so repo'd by the cops ( he was the tow truck driver ) and im the lucky recipient =)
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Old Jul 18, 2010 | 03:49 AM
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So I will be ordering the FJO instead of wiring in the resisters. However I still have a question. I noticed that I have 3 fuel hardlines. From there, how do I get my fuel lines to hook into those hardlines and third, are there lines running from all 3 outputs of the FPR? I feel like I need to purchase more fuel lines/fittings.
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Old Jul 18, 2010 | 05:13 AM
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^One of the hard lines is a vent from the tank. 1 is the feed, 1 is the return and 1 is the vent.

-Austin
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Old Jul 18, 2010 | 05:31 AM
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no there are 3 harlines coming from the same location but only 2 are the main ones,

There is a feed from your fuel pump
then theres the return from the fuel system your fitting
then the other is for the carcoal canister which i think is for the venting of your fuel tank more so but runs up there then connect to sealed black box with vacum lines on it (located under the oil filler neck)

Im going single and havent had the money yet to opt for the fuel system, but have upgraded my fuel lines and removed the tuning of the third hard pipe as for the hard pip il put a wee kn breather as I think this lets the tank breath..

but if anyone else has any opinion on this third canister line please shed some lit.

As for the injector fjo boxes iv been pricing and for a few extra pound you def are better off with the ID2000 injectors as ya dont need to touch your wiring and plus there bigger again so u can get more fuel if needed through your tuning setups at later stages
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Old Jul 18, 2010 | 11:18 AM
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Originally Posted by goodfellafd3s
do not, do not, do not wire in the resistors. Toss them in the trash and buy an fjo injector driver. You'll thank me later. Search in the 3rd gen tech section and there is a thread with an install how-to.
+1.
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Old Jul 18, 2010 | 11:19 AM
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Originally Posted by SirCygnus
basically... the fuel pressure regulator is the last thing before the fuel returns to the tank. its at the end of the system.

from the tank it goes.

tank... filter... tee... fuel rails... FPR... tank. IN THAT ORDER.
Bingo. That's it. +1.
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Old Jul 18, 2010 | 12:15 PM
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Ok, so that clarifies the 3 hard lines but which is which?

So basically from the three hardlines, I'll have a single braided line that splits into two braided lines that will connect into my primary and secondary fuel rails, then on the other side of the fuel rails, I'll have two lines coming from them into a single line that goes into the FPR and then a single line that goes from the FPR to the fuel return hardline? Does that seem correct?

Second question is, I have -6an fittings for for lines that I have now...how do I go from the hardlines into my fittings? Is there something I'm missing?
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Old Jul 18, 2010 | 05:26 PM
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At the fire wall the line closest to the drivers side fender is the supply, the middle one is the return, and the one furthest from the drivers side fender is the vent line. On my setup I used worm gear clamps for the -an line to the hard lines.
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Old Jul 18, 2010 | 05:46 PM
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Thanks for clarifying Drift.

I feel like I don't have a "complete kit" but I may be wrong. Here are some pictures of a straight "bolt on" fuel system kit. Which lines go to what? Also, I feel like the FPR should have 3 AN fittings, not just two.

Here is everything I received in the box



FPR notice how only 2 AN fittings, the third one (on the right) is blocked off



Injectors, resistors and o-rings, no problems here



Primary rail



Secondary rail



All the lines I received. Compared to KG Parts kit found in one of the threads above, there are many lines missing, see the comparison below.

What I have....



What he has...

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Old Jul 18, 2010 | 06:05 PM
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feed line>primary rail>secondary rail>FPR>return line
or
feed line>secondary rail>primary rail>FPR>return line

however, if that's what's shown from the place you ordered it from, I would call and ask. The first way is how the factory setup is
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Old Jul 19, 2010 | 12:51 AM
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Are they all ran through separate lines or a single line? Notice how my kit has 4 separate lines where in the other guys kit, his are connected and has a lot more lines.
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Old Jul 19, 2010 | 03:54 AM
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here ya go, damian illustrates EXACTLY what you're asking about, the top drawing is the factory set-up and is what I'm assuming the lines for your kit are intended to be routed like.

edit: ****, forgot the link
http://kgparts.com/forums/tutorials.php?do=view&tutid=2
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Old Jul 20, 2010 | 01:31 AM
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Thanks so much KKM. I tried to make it work but this is what I have right now...I really don't even know if it's possible.

From the feed line, I have a line that runs to my primary rail, then from the other side of the primary rail I have a line going to my secondary rail. From the other side of the secondary rail, it runs to my FPR (does it matter which area it comes into the FPR? side or bottom or does it matter) and then from the FPR I have a line running to the return.

Don't know if these pictures help, but is this ok?



As you see in the picture above, the fuel in goes to the farthest insert of my primary rail, then out the primary and up to the secondary, and then out from the secondary running along the top of the secondary rail and into the side of the FPR. Then from the bottom of the FPR goes to my return line.
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Old Jul 20, 2010 | 11:28 AM
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I was confused by the picture at first, looks like you had a random braided line just going over to the front of the motor and there wasn't anything attached to the back of the secondary rail. But yes, that looks to be correct, just a little weird.
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Old Jul 20, 2010 | 03:01 PM
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Yea I didn't know of any other way for it to work with the lines I already have premade. So it looks like an "S" as far as the flow of my lines go. I will probably double check everything to make sure the connections are good and there won't be any kind of leaking.

One last questions and I believe I'm set. As you see my mines already has -6an fittings. Is there anyway for me to run that to my hardlines? (feed and return) and also, what do I run for the "vent" or do I need a line coming off that.

Also, it doesn't matter where the line comes in or comes out for the FPR correct? I have a line coming into the FPR from my rails on the left side of it and then a line coming out the FPR from the bottom and that goes to my return hardline.
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