Stage 1 fuel pump

Discussion in 'The Mixing shop.' started by rkammer, Aug 26, 2018.

  1. rkammer

    rkammer '71 GS455 Arctic White

    Looks like my Stage 1 fuel pump may have gone south. I have access to an original NOS Stage 1 pump in the original box for $120 or the TA Performance Stage 1 pump for $50. Anyone got anything to say about the TA pump for a 450-500 HP street build? (good or bad).
     
  2. LARRY70GS

    LARRY70GS a.k.a. "THE WIZARD"

    I think you will be better off with the Robb Mc pump. You are on the edge with the Stage1 pump unless you run a pusher pump.
     
  3. rkammer

    rkammer '71 GS455 Arctic White

    You may be right, Larry. However, I still want some feedback on an NOS stage 1 pump vs the TA performance Stage 1 pump.
     
  4. LARRY70GS

    LARRY70GS a.k.a. "THE WIZARD"

    I understand Ray, you may need to wait awhile for that. Not sure many guys have made a back to back comparison that way. I guess your fuel pressure test revealed a problem with your current pump?
     
  5. rkammer

    rkammer '71 GS455 Arctic White

    No, I have all the parts but still need to remove the stock fuel line Carb to fuel pump, take out a section and have it flared to accept the rubber lines to the nipples of the adapter. I also have the Summit steel line and the gauge you recommended. I plan to leave the adapter in place for future use and maybe a fuel filter.
     
  6. 87GN_70GS

    87GN_70GS Well-Known Member

    An old pump with old diaphragm rubber runs the risk of rupturing
     
  7. buick64203

    buick64203 Right wing conservative Staff Member

    If you have your heart set on a factory style pump, AC Delco and Airtex still make Stage 1 pumps. They average about $30
     
  8. rkammer

    rkammer '71 GS455 Arctic White

    I'd love to save the extra money but, I'm told that the original Stage 1 (NOS) pumps put out about 7 psi while the aftermarket pumps only 5-5 1/2. Any truth to this to your knowledge?
     
  9. LARRY70GS

    LARRY70GS a.k.a. "THE WIZARD"

    I have heard that before, but I am not sure if anyone has ever documented it.
     
  10. buick64203

    buick64203 Right wing conservative Staff Member

    If I have time this weekend, I'll try and take a fuel pressure reading on the beater. Its got an Airtex one on there.
     
    TexasT likes this.
  11. rkammer

    rkammer '71 GS455 Arctic White

    Thanks, Jason. I'll look forward to that.
     
  12. scubasteve455

    scubasteve455 Well-Known Member

    Your Asking Larry to step out on a limb
     
  13. rkammer

    rkammer '71 GS455 Arctic White

    ????
     
  14. LARRY70GS

    LARRY70GS a.k.a. "THE WIZARD"

    Me too Ray, I'm confused.:D Maybe Steve Has a liquid lunch or supper before he posts?:D
     
  15. rkammer

    rkammer '71 GS455 Arctic White

    :D
     
  16. dynaflow

    dynaflow shiftless...

    Gonna run ethanol-blended gas?
     
  17. rkammer

    rkammer '71 GS455 Arctic White

    Yes, mostly 93 octane with 10% ethanol. Occasionally fill up with ethanol free but, seldom.
     

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