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PMO EFI Fuel Rail and AC
Looking to gain alittle space between my fuel rail and ac Compressor.
What is the inlet size (The brass coupler).  If I had an elbow that screwed in to rail on one end, and connected to the line on the other end... Id gain 1/4 inch.. right? This...  Instead of this  The alternative is to get a different rail with an inlet on the bottom. It would need to be slightly longer than the PMO. There is not enough room to tap the PMO rail. If I got a rail .75 longer, it could have a bottom inlet and it would still give me 1/4-1/2 inch of clearance instead of basically none. It would need to match up to the PMO / Weber design. Anyone done this? Thoughts?
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83 SC Targa -- 3.2SS, GT2-108 Dougherty Cams, 9.5:1 JE Pistons, Supertec Studs, PMO ITB's, MS2 EFI, SSI's, Recurved Dizzy, MSD, Backdated Dansk Sport Stainless 2 in 1 out, Elephant Polybronze, Turbo Tie Rods, Bilstein HD's, Hollow 21-27 TBs, Optima Redtop 34R, Griffiths-ZIMS AC, Seine Shifter, Elephant Racing Oil Cooling. Last edited by brads911sc; 03-31-2012 at 04:30 PM.. |
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03-31-2012, 04:28 PM
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I'm in the process of reinstalling my A/C compressor. SC did not have EFI when I took the A/C out. I am thinking of making some standoffs for the compressor to raise it up over the rail and fittings. I don't think I can gain enough room otherwise.
I basically am glomming onto this old thread to see if there are any answers to this. Pat
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Patrick E. Keefe 78 SC |
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07-19-2019, 09:38 AM
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 You might want to try this Banjo Fitting from Vibrant or another supplier......  It is PN 11525 from Summit Racing if I remember correctly. Len
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07-21-2019, 07:43 AM
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The thread size in the fuel rail is 3/4-16.
regards, al
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07-21-2019, 07:49 AM
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Here is an option used on a SC w/ EFI and A/C.....  ....as the Fuel Rail is plugged at the end and a new fitting is installed underneath the Fuel Rail. Len
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07-21-2019, 08:01 AM
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I was going to plug the end of the rail near the compressor, and drill and tap it between 4 & 5 for a new entry. I have dismissed any flow problems. I did also buy a new blank section of rail for (if and) when I screw this up. I will, however, measure and see if I have room for the banjo fitting. I spent hours yesterday getting the deck condenser in, and making sure no interferences exist between the various components and the deck lid. The fuel rail is the last issue.
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Patrick E. Keefe 78 SC |
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07-21-2019, 11:57 AM
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Well, after all of this, I have come to realize that the existing Seiko Seki SS-17CPSV5 compressor will require an idler pulley where I plan to mount it. But, if I raise it, it will interfere with the deck condenser. So, I am trying to find dimensions for the Sanden 507 type compressors, which may be a bit shorter between the mounting ears. But, it was once mounted with the same deck condenser in place, and it fit, and I don't remember it having an idler.
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Patrick E. Keefe 78 SC |
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07-21-2019, 03:05 PM
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How did you resolve this? Len
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10-05-2019, 03:29 AM
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Len,
I put a plug in the end of the fuel rail on the right side. I drilled and tapped a hole in the rail between #4 and #5 cylinders, and reconnected the AN fitting there. Compressor clears, and the fuel seems to work OK. I kept the same compressor. I had to fab a bracket to support it. I still need to do a bit of work, as I don't particularly like the belt alignment. It is off by about 1/4". Thanks! Pat
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Patrick E. Keefe 78 SC |
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10-05-2019, 09:52 AM
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Fuel Rail
Len,
I just found this picture of my mod. I am posting it for posterity. Pat 
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Patrick E. Keefe 78 SC |
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10-19-2019, 05:05 AM
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Update:
I am pulling the engine out, so I will be able to fit up a Sanden much easier now...more room to work. I have found he dimensions of a Sanden SD7H13 would be about as good as it will get, as long as I can find the right belt. I do have time on my hands to play with it, however.
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Patrick E. Keefe 78 SC |
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04-05-2020, 04:24 PM
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