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View Full Version : TIII T3 Billet Fuel Rail Install and Questions



DoubleD
01-22-2014, 02:50 PM
Just picked up a new, unused TU Fuel Rail from another user on here. It came with the mounting brackets and a machined FPR adapter.

Here are the parts I received:
http://i84.photobucket.com/albums/k6/brmsnowboarder/IROC%20RT/IMG_20140121_161523_605_zps5uvtnca8.jpg (http://s84.photobucket.com/user/brmsnowboarder/media/IROC%20RT/IMG_20140121_161523_605_zps5uvtnca8.jpg.html)
I have a couple of questions:

What other parts do I need to source to install this to my stock fuel system?

Is the tapped hole in the center of the rail 1/8 npt and made for a Fuel Pressure Gauge?

Is the rail tapped for 3/8 NPT?

How do I attach the rail to the machined adapter? I think I am missing an adapter.

Chris W
01-22-2014, 05:20 PM
What other parts do I need to source to install this to my stock fuel system?

Depends on your choice of fuel delivery/return hoses. Braided steel or rubber hi pressure fuel injector hose.

Is the tapped hole in the center of the rail 1/8 npt and made for a Fuel Pressure Gauge?

They were not sold by us pre-drilled and tapped. Our guess is 1/8 npt since that is the common size for aftermarket fuel pressure gauges. Be careful when testing as the soft aluminum will cross thread easily.

Is the rail tapped for 3/8 NPT?

Our earlier rails were. For the last 5 years though these have been tapped for -6 AN fittins with O-rings as pictured in this post: http://www.turbo-mopar.com/forums/showthread.php?73693-TU-or-FWD-2-piece-fuel-rail&p=1024296&viewfull=1#post1024296

How do I attach the rail to the machined adapter? I think I am missing an adapter.

Yes, an adapter is missing. Should be either 3/8 npt or 1/2" npt in to the adapter and either 3/8 npt or -6AN O-Ringed into the fuel rail end.

Contact us directly if you need further assistance,

Chris-TU

Turbo224
01-22-2014, 05:45 PM
The package also had a small plastic bag in it with a set of mounting screws and the adapter. I hope you didn't throw it out! :p

86Shelby
01-22-2014, 07:00 PM
Chris's info FTMFW!

DoubleD
01-23-2014, 05:13 PM
I have the small package of bolts, I didn't lose them. Everything came.

I called Chris today at TU and he answered all questions I had. I am missing a few parts, but he was able to answer all questions that I had. Turns out this fuel rail is an older model (older than 5 years) so not everything is standard, but for the price I can make it work easily. Thanks for all your help Chris!!

DoubleD
02-19-2014, 12:33 AM
Finally warmed up enough outside to get some work done in the garage. Got a chance to mock up the fuel rail install and all the accessories needed to make it work. Rail looks really nice and fits perfectly. The Fuel pressure regulator bracket needs to be remade, first the FPR faces the wrong direction and the npt threads are stripped going into it. Going to have to make a new one. Going to need a 45 1/8 NPT male to female fitting to mount the gauge. Planning on bending up a 3/8" hardline to attach the rail to the rubber hose, have the "hanger wire" there for fitment, now I can bend up the hardline to replicate it. All the billet goodness looks great on top, cant wait for my new 1000cc injectors to finish this off!

http://i84.photobucket.com/albums/k6/brmsnowboarder/IROC%20RT/IMG_20140218_214704_119_zpsudau1fpx.jpg (http://s84.photobucket.com/user/brmsnowboarder/media/IROC%20RT/IMG_20140218_214704_119_zpsudau1fpx.jpg.html)



http://i84.photobucket.com/albums/k6/brmsnowboarder/IROC%20RT/IMG_20140218_214716_497_zpsla0cvhug.jpg (http://s84.photobucket.com/user/brmsnowboarder/media/IROC%20RT/IMG_20140218_214716_497_zpsla0cvhug.jpg.html)

iTurbo
02-19-2014, 01:38 AM
The rail looks good, but that FPR adapter is just....off. You mentioned that it is facing the wrong direction and the "NPT" threads are stripped. I hate to be the bearer of bad news, but these FPRs don't use NPT threads. They are metric. Sure a 1/4" NPT fitting works in a pinch, but I sure wouldn't trust it!

You can find the right thread adapter at Summit. I can't remember the right measurements off hand, but if you search I posted the correct thread size in a thread a while back. If I were you I would ditch the rail mount FPR and get a remote mount FPR on the strut tower somewhere. If you want to go with 3/8" hardline, NAPA has Poly Armour hard line that is very corrosion resistant and still relatively easy to bend. I've done it on a Spirit R/T myself and plan to use it again in the future.

I hate to sound like an -------, but seriously I wouldn't be driving around with that without a fire extinguisher. Somebody has to say it.

DoubleD
02-19-2014, 02:08 AM
I talked to Chris at TU and the rail I picked up is 3/8npt, it is an older part with 3/8 NPT on the rail also . I am going to make a new adapter at work, one that points the right direction and to also look a little cleaner, I am just hoping to get a print from TU to base mine off of. I can always break out the caliper, but a detailed drawing is more precise.

I already have a fire extinguisher in the car, I cruise around with a bunch of friends that all have modified cars, we all carry fire extinguishers.

All of the fuel system on the front of the car is just mocked up, I would never run anything questionable, especially on the fuel system. This will be built right.

iTurbo
02-19-2014, 02:14 AM
I talked to Chris at TU and the rail I picked up is 3/8npt, it is an older part with 3/8 NPT on the rail also . I am going to make a new adapter at work, one that points the right direction and to also look a little cleaner, I am just hoping to get a print from TU to base mine off of. I can always break out the caliper, but a detailed drawing is more precise.

I already have a fire extinguisher in the car, I cruise around with a bunch of friends that all have modified cars, we all carry fire extinguishers.

All of the fuel system on the front of the car is just mocked up, I would never run anything questionable, especially on the fuel system. This will be built right.

Right on, glad to hear you are being careful about it because you have a nice car/project there. I just wanted to say that the stock and Accufab regulators most definitely use a metric thread adapter and not the 1/4" NPT that seems to fit OK. On the last Spirit R/T I built, I used an Aeromotive AFPR #13105. Works good, but if you go this route I would look for something with a higher pressure capability.

Chris W
02-19-2014, 02:25 AM
I talked to Chris at TU and the rail I picked up is 3/8npt, it is an older part with 3/8 NPT on the rail also . I am going to make a new adapter at work, one that points the right direction and to also look a little cleaner, I am just hoping to get a print from TU to base mine off of. I can always break out the caliper, but a detailed drawing is more precise.

I already have a fire extinguisher in the car, I cruise around with a bunch of friends that all have modified cars, we all carry fire extinguishers.

All of the fuel system on the front of the car is just mocked up, I would never run anything questionable, especially on the fuel system. This will be built right.

Soft aluminum is easy to cross thread. Give us a call and we can look at some options to help you out.

Thanks!

Chris-TU

DoubleD
02-19-2014, 04:18 PM
Just got off the phone with Chris and we discussed the issue. I have one of his original rails and adapters. Some of the bugs were not worked out at that time, my particular adapter has numerous problems and it is better to be used as a paper weight. So, after talking to Chris, I ordered one of his new adapters that will work with my used fuel rail and give me the piece of mind of knowing it is a tested part. I could have gone ahead and made a new adapter, but we are talking fuel system here and I don't cut corners on that. Chris directed me correctly and I will be another happy customer! Another 1+ for Chris and TU. Wonderful Customer Service!

Chris W
02-19-2014, 05:20 PM
Just got off the phone with Chris and we discussed the issue. I have one of his original rails and adapters. Some of the bugs were not worked out at that time, my particular adapter has numerous problems and it is better to be used as a paper weight. So, after talking to Chris, I ordered one of his new adapters that will work with my used fuel rail and give me the piece of mind of knowing it is a tested part. I could have gone ahead and made a new adapter, but we are talking fuel system here and I don't cut corners on that. Chris directed me correctly and I will be another happy customer! Another 1+ for Chris and TU. Wonderful Customer Service!

Good decision. :thumb: As we discussed, the bugs were easy to address but the cross threaded inlet was un-repairable. It would be better to start of with a new one. Let us know if you need further assistance.

48903


Chris-TU

iTurbo
02-20-2014, 01:26 AM
Awesome, glad to hear it worked out!

DoubleD
03-05-2014, 11:38 AM
Here is my completely mocked up fuel system to make the TU Fuel Rail work right and properly.
Should work really well and keep everything clean still. Just need to paint the new hard line so it doesn't rust.

http://i84.photobucket.com/albums/k6/brmsnowboarder/IROC%20RT/IMG_20140304_192045_436_zps0e5fea98.jpg (http://s84.photobucket.com/user/brmsnowboarder/media/IROC%20RT/IMG_20140304_192045_436_zps0e5fea98.jpg.html)


http://i84.photobucket.com/albums/k6/brmsnowboarder/IROC%20RT/IMG_20140304_192056_116_zpsf190aa72.jpg (http://s84.photobucket.com/user/brmsnowboarder/media/IROC%20RT/IMG_20140304_192056_116_zpsf190aa72.jpg.html)


http://i84.photobucket.com/albums/k6/brmsnowboarder/IROC%20RT/IMG_20140304_192103_813_zpse025efde.jpg (http://s84.photobucket.com/user/brmsnowboarder/media/IROC%20RT/IMG_20140304_192103_813_zpse025efde.jpg.html)


http://i84.photobucket.com/albums/k6/brmsnowboarder/IROC%20RT/IMG_20140304_192124_215_zps78fcd3b3.jpg (http://s84.photobucket.com/user/brmsnowboarder/media/IROC%20RT/IMG_20140304_192124_215_zps78fcd3b3.jpg.html)

Chris W
03-05-2014, 12:35 PM
Here is my completely mocked up fuel system to make the TU Fuel Rail work right and properly.
Should work really well and keep everything clean still. Just need to paint the new hard line so it doesn't rust.


We did not realize you were using a Forward Motion modified Adjustable Fuel Pressure Regulator. We designed our adapter mainly for the Accufab AFPR unit that we offer on our site. Glad to see you were able to make it work for you.

Thanks!

Chris-TU

DoubleD
04-08-2014, 09:49 AM
Finished product.

http://i84.photobucket.com/albums/k6/brmsnowboarder/IROC%20RT/IMG_20140407_221859_745_zpsd6a76fbe.jpg (http://s84.photobucket.com/user/brmsnowboarder/media/IROC%20RT/IMG_20140407_221859_745_zpsd6a76fbe.jpg.html)

http://i84.photobucket.com/albums/k6/brmsnowboarder/IROC%20RT/IMG_20140407_221932_903_zpsba407d62.jpg (http://s84.photobucket.com/user/brmsnowboarder/media/IROC%20RT/IMG_20140407_221932_903_zpsba407d62.jpg.html)

Turbo224
04-08-2014, 10:04 AM
The rail mounted gauge looks good. Im glad it worked out for you.

DoubleD
04-15-2014, 09:19 AM
Chris,
One last issue with the install. The FPR regulator adapter is made to work with the Accufab unit and from the best of my knowledge you have to shim the accufab unit on a stock fuel rail. I am getting a leak between the FPR and the adapter bracket and I believe this is due to the FPR not seating far enough down on the bracket. What are the thicknesses of the washers that are included with a Accufab installation. I think I need to mill off that thickness from my adapter in oreder to get it to sea lower on the adapter.
Thanks

DoubleD
04-16-2014, 12:24 PM
Update:
Took the adapter down into the machine shop at work, after a quick chat with Chris at TU, we took .050" off the surface where the studs are. Now the regulator sits further down and the o-ring seals properly. Fuel system tested to 85 psi and no leaks anywhere. Car fired right back up.

DoubleD
05-10-2014, 02:25 AM
Still getting leaks from the pipe thread fittings, what do you guys use to seal up the fuel lines on your cars? I have some Versa Chem Gasket Sealant #2, that is suppose to be fuel and solvent resistant, but I don't think it is working, What sealant do you guys use?

86Shelby
05-10-2014, 11:22 AM
White Teflon tape. Wrap it in the direction of the threads so that when you screw the fitting it the end of the tape won't get rolled over. I normally wrap around the fitting twice.

DoubleD
05-28-2014, 12:46 PM
Update:
All leaks fixed and been driving it for a week or so. Ended up using the Gasket Sealant #2, I just needed to let it dry for 15 minutes before assembling the parts. That is the trick!

DoubleD
01-15-2015, 03:33 PM
Update:
I recently decided the steel hard line is not the way to go. Had issues with fuel leaking on the end that connected to factory rubber fuel line, issues flaring the tubing, and I just don't trust it. I am going to be replacing the steel hard line i bent up with braided hose. Does anyone have the dimensions or can get them for a standard -6an 180° fitting. I want to know if this fititng will clear my dipstick tube or I need to get creative with affixing the braided hose to things as it travels back to the passenger wheel well where it connects back into the stock fuel lines.
Here are some pictures with dimensions for addition assistance.

http://i84.photobucket.com/albums/k6/brmsnowboarder/IMG_06431_zpsa4d8bd8d.jpg (http://s84.photobucket.com/user/brmsnowboarder/media/IMG_06431_zpsa4d8bd8d.jpg.html)

http://i84.photobucket.com/albums/k6/brmsnowboarder/IMG_06421_zps074e73b2.jpg (http://s84.photobucket.com/user/brmsnowboarder/media/IMG_06421_zps074e73b2.jpg.html)

GLHNSLHT2
01-15-2015, 08:51 PM
Can't you swap ends from the feed to the FPR??? Or go another way around the rail? I've seen some cheap 180 degree bends that are really tight but that doesn't do much good as you'll either hit the brackets or the FPR at some point unless you make another bend probably. The earls fittings are less tight but not enough of a radius to go where you currently have it. If the pressure gauge was on top of the rail instead of the bottom you could go that way. Might still be able to run a line over it and under your FPR in front. Here's a pic of my 8v rail with Earl's parts. Might give you some ideas.

https://scontent-b-sea.xx.fbcdn.net/hphotos-xpf1/v/t1.0-9/1380777_3458163868232_1415166874_n.jpg?oh=5a1fef05 0aa564e87f395de47b71bc09&oe=5522E28C