(Picture taken from www.fc3spro.com)

Would this system work out ok for my '86 NA? My goal is to remove the PD and really just make the system bulletproof.

I know the whole banjo bolt thing, but I want to make this system rock solid. Feedback please

 

yes - it would work

However it would be considered by some to be overkill for that application - buying a new PD or doing the banjo bolt hack along with replacing any aged lines, pump (if its quite old) and the fuel filter would be sufficient (as well as far cheaper) for making a reliable fuel system on an N/A

 

The parallel fuel mod would definately be overkill for this situation...

 

over kill yes, but very sexy. sorry to thread jack, but how much fuel line would i need to replace EVERY line in the car?

 

Well the line from the tank is aluminum and most likely good, you'll just to replace the rubber lines from the filter and the return line. Which are both on the driver side firewall. So not much line at all.

 

That's my next fuel mod!

 

you can't get that yspliter fuel block any more from summit you have to do a search on yahoo or something and they have one place I found that has it. Good luck and on an n/a that is way overkill. This will be one of my mods in the very near future as well.

 

http://www.holley.com/17835NOS.asp

http://www.holley.com/17836NOS.asp

As is on RETed's site

 

Yeah, I know its deff. overkill but I figured what the hell, why not.

Plus I agree with Alex6969, it would be sexy

 

Why wouldnt it work? Its designed by ReTED for the FC...

 

You can the fuel block splitter right here: http://www.anplumbing.com/shop/

 

Be prepared to pay several hundred dollars for just the fittings and hose.

And if you use stainless braided hose, you might want to get an idea of where you're going to put the FPR and how you plan to route the hose before you order the fittings. Stainless hose doesn't bend very well so you'll want fittings that get you started in the right direction. I think I placed 6 orders with summit before I finally had every last one I actually needed, because I didn't plan ahead very well.

Also, if you're not running new hose all the way to the tank, have a plan for connecting your hose to the hard feed and return lines that come up the drivers side firewall (hard feed actually ends under the car and starts a hose for the fuel filter). There are AN fittings for hard tube, but the one I bought leaked and pulled right off after it was tight.

I just finished doing this in my S5 NA (to fix a problem with the old fuel system and prepare for future mods). You can see about how much it cost me on http://irixbox.com/?s=rx7

 

Actually, it won't work.

The fitting size for the primary rail is wrong for the '86 NA. Both ends of the S4 NA fuel rail are M12x1.25 instead of one end being M14x1.5. I ran into this exact issue and had to order another fitting.

You're also going to want to use a pulsation damper regardless of what kind of lines you use for the fuel system.

 

It's overkill for an NA.
Aaron Cake is right - the NA S4 fuel rails are different size fittings.
What he isn't right about is that SX Engineering explicitly states a PD is not necessary with their FPR's...like I said millions of times before.


-Ted

 

I figured I would do this while I was replacing my vacuum hoses. I got a good look at the lines and noticed they are in need of a replacement, also the screw had popped off the end of my PD and was enjoying the ride in the plastic cover. After a few hours of searching and debating with myself over the set up I decided to go ahead and do it.

I try to stick to the "If it needs to be replaced, replace with something better" motto. I know it is overkill, but I was planning on replacing the lines with braided hose and figured I might as well go the distance.

After pricing it all out I came to about $370 (minus shipping) for everything from summit. The "Y" fittings are still available from them the part number is NOS-17835NOS.

Thanks RETed and Aaron for the info

 

Because you could spend the money on something useful instead?

Braided hose on a street car is just eye candy, particularly on an NA. New rubber hoses will probably outlast the car for a fraction of the cost. But it's your money.

 

mine did as well. so i pulled the cover off, put the screw back in, and put the plastic cover back on. oh well, if my car burns up, i'll get another one.

 

Most people (including me) are using the Aeromotive regulators these days so I mentioned it. After a long talk with an Aeromotive guy a few months ago they basically warned that any injectors over 500CC must be accompanied by a pulsation damper to avoid fuel delivery hiccups (as previously discussed in the 10,000 other pulsation damper threads ). If the SX regulator is different, then it's not an issue.


You're telling me!

Current bill for braided stainless and AN fittings: $2900 and rising. I would wager that's more then most people here paid for thier cars.

 

Funny...someone just mentioned (in another thread?) Essex (makes of all the SX Performance stuff) made the Aeromotive FPR and fuel pumps?


-Ted

 

Its not going to be for a while, I have plenty of other things to focus on.

Thank you everyone for your input

When I get this all done (next month or 2) I am going to post a write up for all to see. Of course giving full credit where it is due

 

Don't know *shrug*. That's just what the Aeromotive guy told me. After looking at the SX Performance site, I'd have to say that the resemblance is certainly uncanny...

 

ok let me restate what i said, the y spliter fuel block that has npt inlet and two -AN outlets is not available anymore through summit or jegs. This is what you need to go from rubber hose to -AN fittings. Other wise you have to do stainless steal braided from gas tank forward. Is this what you guys where planning on doing? I highly doubt it, so then what good is NOS fitting?

 

Then don't use the NOS fitting. If you want a Y splitter with NPT ports, visit your local plumbing or hydraulic store, or purchase one from Holley.

 

well the one that was mentioned on fc3spro.com isn't available anymore and I could only find one place on the net that still had it. Again this is the one that has the one npt female so that you can hook a barbed fitting to it and then on the other side are two -6AN male fittings so that you can start running your stainless steal braided stuff from there.

 

You can always get creative, a -6 AN Y fitting, a -6 AN female coupler and a -6 AN to 3/8 hose barb would run you $40 + handling from summit.