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  • Finally got to drive the bird around

    I got it smogged today, but it failed because I haven't driven it in awhile and plus it has a new battery which affected their smog machine from getting a reading of the stored code. So I have to drive it around.

    Today in Nevada it's a 120* and my AC wasn't working. Actually the belt would slip really bad from the AC compressor. I have the double sided belt for my supercharger. I'm thinking of going back to single side belt. AC is a must where I live.

    Also, this has been a problem I've had for awhile. I have no problem doing cold start, but once I turn off the car and try to do another start after 30 to 40 minutes or so the car has a hard time firing up. I noticed the FP was low. I already changed the fuel pressure regulator on this and it's still the same. Any suggestions.
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  • #2
    Do you have a walbro 255 fuel pump in there? Or is it stock? Still looking good.
    08' L76 6.0L 4X4 Chevy EXT.Cab LTZ Vortec MAX with Snug top cover, Dynomax exhaust,Hptuners& K&N intake
    96' Camaro M5 to A4 conversion, alot of mods ,see Homepage. GT35R Turbo http://www.cardomain.com/ride/244123...vrolet-camaro/

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    • #3
      Yes, i have the walbro 255. I'm thinking of changing that. Would you recommend that same pump.

      I'm going to change the ect and see if that's the culprit.

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      • #4
        Whats your fuel pressure at idle? Then at WOT? Ect wouldn't have any effect on the fuel pressure. Did you do the trap door method? Yeah I would do another Walbro 255.
        Last edited by ssms5411; 08-20-2018, 12:43 PM.
        08' L76 6.0L 4X4 Chevy EXT.Cab LTZ Vortec MAX with Snug top cover, Dynomax exhaust,Hptuners& K&N intake
        96' Camaro M5 to A4 conversion, alot of mods ,see Homepage. GT35R Turbo http://www.cardomain.com/ride/244123...vrolet-camaro/

        Comment


        • #5
          I saw 38psi. No difference if it was open throttle or not. Awhile back it was 40 to 42psi.

          I do have stock injectors and I only have the vortech FMU.

          Yes I did the trap door awhile back.
          Last edited by 2.8 Bird; 08-21-2018, 03:11 AM.

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          • #6
            That is low fuel pressure - how old is the pump?

            2002 SOM Z28 Camaro
            1996 3800 camaro- Gone - still the fastest N/A Canadian 3.8L F-body
            V6 best: 13.43 @ 100.77 mph


            My Current Build | Synthetic Oil | Videos

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            • #7
              Yeah thats low, I see 44 psi at idle and 48 psi at WOT, maybe time for another Walbro 255, Im at 16-17 years on my Walbro 255.
              08' L76 6.0L 4X4 Chevy EXT.Cab LTZ Vortec MAX with Snug top cover, Dynomax exhaust,Hptuners& K&N intake
              96' Camaro M5 to A4 conversion, alot of mods ,see Homepage. GT35R Turbo http://www.cardomain.com/ride/244123...vrolet-camaro/

              Comment


              • #8
                Yes, about the same years as Steve. I've had ot since 2002, same time as my supercharger. I'll get it changed then. Do you guys still recommend walbro or is there a better one.

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                • #9
                  Also you need to ditch the fmu and stock injectors and go with hptuners and 36lb injectors(33lb) on our system. Then you can ditch the trc-1 timing controller and just use hptuners to dial in your timing. Just a thought. Also do you have a wideband O2 to see if your running lean?
                  08' L76 6.0L 4X4 Chevy EXT.Cab LTZ Vortec MAX with Snug top cover, Dynomax exhaust,Hptuners& K&N intake
                  96' Camaro M5 to A4 conversion, alot of mods ,see Homepage. GT35R Turbo http://www.cardomain.com/ride/244123...vrolet-camaro/

                  Comment


                  • #10
                    Just thought about it and your fuel pressure should be in the 90's or over 100 psi at WOT since your using a 6:1 fmu bumps your fuel pressure 6 psi for every pound of boost so your fuel pump is toast if your not going over 50psi at WOT.
                    08' L76 6.0L 4X4 Chevy EXT.Cab LTZ Vortec MAX with Snug top cover, Dynomax exhaust,Hptuners& K&N intake
                    96' Camaro M5 to A4 conversion, alot of mods ,see Homepage. GT35R Turbo http://www.cardomain.com/ride/244123...vrolet-camaro/

                    Comment


                    • #11
                      Good info there Steve. Thanks

                      Yeah, since I don't live in California anymore I can ditch the soft tune. Yes, I do plan on getting a wideband.

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                      • #12
                        So are you guys using the bucket where the fuel pump goes in.

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                        • #13
                          I ditched the bucket and used hose clamps to put it together. Just make sure its tight, when I first did mine the hose came off and had to go back in, thats why Im glad to have the trap door.
                          08' L76 6.0L 4X4 Chevy EXT.Cab LTZ Vortec MAX with Snug top cover, Dynomax exhaust,Hptuners& K&N intake
                          96' Camaro M5 to A4 conversion, alot of mods ,see Homepage. GT35R Turbo http://www.cardomain.com/ride/244123...vrolet-camaro/

                          Comment


                          • #14
                            Alright. Thanks

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