Join Date: Feb 2008
Location: N. Florida
My Ride: 1991 Daytona CS
Engine: 2.5L Turbo I
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Re: Fuel rail adapter?
I hacked up my stock FPR (cut it on the fitting side of the seam) and think I may have a solution.
The inlet part is where the difficulty arises in making a replacement. The outlet part consists of a 14mmx1.5 Saginaw o-ring fitting, which can be easily adapted to AN6 male. I elected to drill it out to 37/64 and tap it for 3/8 pipe to open up more choices.
The outlet side has a tube that can be cut away with a Dremel. The 37/64 drill took it out in my case. I used a rotary stone to clean up the inside.
The body of the unit is about 1.5" diameter and has to be capped. I found a freeze plug that I think can be welded into place. The 1.375 (3/8)" ones are too small. A 1.4375 (7/16)" would be a good fit, but they are not sold as a "cup" style, only the thinner "concave" style. Dorman sells a 36.5mm plug as part #555-103 and they are usually carried at local auto parts stores. According to my micrometer and Dorman specs, they are about .018" larger in diameter than my opening. I'm thinking I can notch the lip of the cup to clear the inlet pipe, press it into place, and then have it welded.
I'm taking some pics and will update here after it is completed.
First batch of pics added.
The 3/8 NPT fitting interfered with the injector. If an AN adapter such as the 14x1.5 to AN6 part were used, this would likely clear.
Last edited by Daytona_Shopper; 09-22-2016 at 11:45 AM.
Reason: More info