Pro Flo 4 Timing

Electrical and Ignition

  1. famous bob

    famous bob mopar misfit

    Messages:
    19,857
    Likes Received:
    8858
    Joined:
    Aug 14, 2011
    Location:
    okla
    Local Time:
    11:16 AM
    HE LOST ME WHEN HE SAIS MORE VACUUM AT WIDE OPEN THROTTLE !
     
  2. famous bob

    famous bob mopar misfit

    Messages:
    19,857
    Likes Received:
    8858
    Joined:
    Aug 14, 2011
    Location:
    okla
    Local Time:
    11:16 AM
    Good catch !!
     
  3. Ivan Baez

    Ivan Baez 426 SB daily driver

    Messages:
    95
    Likes Received:
    43
    Joined:
    Aug 14, 2020
    Location:
    Queretaro
    Local Time:
    11:16 AM
    Bob, well, the edelbrock screen indicates -7 at WOT, Im not sayinf it physically has vaccum, just the ECU sensor reads as such!. Even with the engine off it reads -5.9 or something like that... :(
     
  4. TurboGLH

    TurboGLH Well-Known Member

    Messages:
    512
    Likes Received:
    572
    Joined:
    Jul 29, 2017
    Location:
    CT
    Local Time:
    12:16 PM
    Edelbrock mod just closed the thread everyone was commenting in. It's unfortunate, but I think that there's enough info out that at this point that people can find it by searching.
     
  5. Mopar73340

    Mopar73340 Well-Known Member

    Messages:
    214
    Likes Received:
    136
    Joined:
    Jan 10, 2009
    Location:
    Northern VA
    Local Time:
    12:16 PM
    Typical. It’s the first post Peter has closed that I have been involved with but Nate who used to be there deleted, removed threads, removed my replies, and blocked my IP address. Unfortunately when the topics start to point in their direction, they seem to close them with no definitive explanation of the issue. (Most likely they don’t want to mess with “us” after all we aren’t driving Chivvey’s and we’re just chump change to them. My 2 cents. WTF?
     
    • Like Like x 1
    • BergmanAutoCraft

      BergmanAutoCraft FABO Vendor FABO Vendor

      Messages:
      288
      Likes Received:
      235
      Joined:
      Feb 18, 2013
      Location:
      Long Island, NY
      Local Time:
      12:16 PM
      I run 11.3 with same head and less
      I’ll see them at SEMA..
       
    • Mopar73340

      Mopar73340 Well-Known Member

      Messages:
      214
      Likes Received:
      136
      Joined:
      Jan 10, 2009
      Location:
      Northern VA
      Local Time:
      12:16 PM
      I saw them at SEMA in November of 2019. Don’t expect any new information from the guys that show up there.
       
    • Ivan Baez

      Ivan Baez 426 SB daily driver

      Messages:
      95
      Likes Received:
      43
      Joined:
      Aug 14, 2020
      Location:
      Queretaro
      Local Time:
      11:16 AM
      I have no idea what the difference may be other than the pistons if you are using the same heads. I used what the guys from Hughes engines came up with (I got the entire engine package parts from them to avoid mix and match) and it also was aligned withe the compression results from the summit racing calculator tool. At the end of the day that was their compression suggestion based on what I told them I needed the engine for. Very happy with the results so far and the parts quality from Hughes.
       
    • Ivan Baez

      Ivan Baez 426 SB daily driver

      Messages:
      95
      Likes Received:
      43
      Joined:
      Aug 14, 2020
      Location:
      Queretaro
      Local Time:
      11:16 AM
      It would be great if they enabled a logging feature in the ECU SW application, its very difficult to be driving and gathering data just by looking at the application gauges.
       
      • Agree Agree x 1
      • famous bob

        famous bob mopar misfit

        Messages:
        19,857
        Likes Received:
        8858
        Joined:
        Aug 14, 2011
        Location:
        okla
        Local Time:
        11:16 AM
        SUMPIN IS WRONG--------
         
      • Cal Tonsley

        Cal Tonsley Well-Known Member

        Messages:
        274
        Likes Received:
        450
        Joined:
        Mar 11, 2017
        Location:
        Australia
        Local Time:
        3:46 AM
        Yes, I guess I put them “on the spot” in looking for some definitive info re rotor phasing, pity that this was their response. The whole loose chain tack was just a diversion. At the end of the day they really should welcome that input in an effort to improve their product. Anyway, I’m really pleased with the input provided on this thread, thanks!
         
        • Like Like x 2
        • Agree Agree x 1
        • Ivan Baez

          Ivan Baez 426 SB daily driver

          Messages:
          95
          Likes Received:
          43
          Joined:
          Aug 14, 2020
          Location:
          Queretaro
          Local Time:
          11:16 AM
          yes, good info here. One miscelaneous question: what do you guys have for acceleration fuel settings?, mostrly interested to know if you had to add big pump shot numbers and if you are using the decel fuel cut parameter.
           
        • Mopar73340

          Mopar73340 Well-Known Member

          Messages:
          214
          Likes Received:
          136
          Joined:
          Jan 10, 2009
          Location:
          Northern VA
          Local Time:
          12:16 PM
          So I drove my car this weekend after installing the MSD adjustable rotor as others have talked about earlier in this thread. Night and day difference. Now I can get my cruising timing back to where it should be. It starts quicker, idles better, and my long and short fuel trims are lower than before. No more breakup above 3K rpm.

          Also many have had an off idle stumble so I also replaced the TPS sensor and the off idle stumble is gone. Not sure if part is due to the rotor or not but most likely bad TPS.

          This is how it should have run from the beginning.
           
          • Like Like x 2
          • Ivan Baez

            Ivan Baez 426 SB daily driver

            Messages:
            95
            Likes Received:
            43
            Joined:
            Aug 14, 2020
            Location:
            Queretaro
            Local Time:
            11:16 AM
            That is good news. its strange the several pleaople also report this TPS sensor problem. what is the replacement part number just in case?

            On the other hand, I oredered my adjustable rotor last week, will publish my experience as well, it should be similar to what other people has experienced here. In order to keep things okay I reduced my vacuum advance to 5 degrees only.
             
          • Mopar73340

            Mopar73340 Well-Known Member

            Messages:
            214
            Likes Received:
            136
            Joined:
            Jan 10, 2009
            Location:
            Northern VA
            Local Time:
            12:16 PM
            TPS sensor part # TH-42 if you have the 4150 style. Bad TPS sensors have been talked about lately on the Edelbrock forum. My guess is when they lowered the price to compete a couple years ago cheaper sensors were part of the cost savings. I have also had to replace my O2 sensor.
             
          • Ivan Baez

            Ivan Baez 426 SB daily driver

            Messages:
            95
            Likes Received:
            43
            Joined:
            Aug 14, 2020
            Location:
            Queretaro
            Local Time:
            11:16 AM
            thanks for the info, sorry for the bother, but what was the O2 sensor part number?, to have it available when the time comes
             
          • Mopar73340

            Mopar73340 Well-Known Member

            Messages:
            214
            Likes Received:
            136
            Joined:
            Jan 10, 2009
            Location:
            Northern VA
            Local Time:
            12:16 PM
          • Ivan Baez

            Ivan Baez 426 SB daily driver

            Messages:
            95
            Likes Received:
            43
            Joined:
            Aug 14, 2020
            Location:
            Queretaro
            Local Time:
            11:16 AM
            • Like Like x 1
            • TurboGLH

              TurboGLH Well-Known Member

              Messages:
              512
              Likes Received:
              572
              Joined:
              Jul 29, 2017
              Location:
              CT
              Local Time:
              12:16 PM
              List is good to have, but use it with some caution. I know for a fact that the rotors listed aren't the ones in the mopar distributor. Not sure if there are any other mistakes, or parts that are mopar specific.

              TPS is correct, TH-42 for the 4150 style
               
              • Like Like x 2
              • Mopar73340

                Mopar73340 Well-Known Member

                Messages:
                214
                Likes Received:
                136
                Joined:
                Jan 10, 2009
                Location:
                Northern VA
                Local Time:
                12:16 PM
                Well yes, each manufacturer setup would possibly have a unique Distributor Cap/Rotor but the TPS, O2, Map, Coolant temp sensors should all be the same.
                 
              • Mopar73340

                Mopar73340 Well-Known Member

                Messages:
                214
                Likes Received:
                136
                Joined:
                Jan 10, 2009
                Location:
                Northern VA
                Local Time:
                12:16 PM
              • Cal Tonsley

                Cal Tonsley Well-Known Member

                Messages:
                274
                Likes Received:
                450
                Joined:
                Mar 11, 2017
                Location:
                Australia
                Local Time:
                3:46 AM
                I’d say good alignment at 12 degrees but at 36 there is no alignment even though they claim “well within range” The width of the rotor tip ends up being the issue with the std Edelbrock phasing which is set up for perfect alignment at 12 degrees, the rotor they use on Chev Distributors looks like it’s more than twice the width (see below) The alignment that they’re achieving at 12 degrees would be more appropriate at say 24 degrees and then I’d say that it could be declared “well within range”
                I’ll definitely be using an MSD adjustable rotor on mine.
                upload_2021-5-6_5-33-47.jpeg
                 
                Last edited: May 5, 2021
                • Like Like x 1
                • TurboGLH

                  TurboGLH Well-Known Member

                  Messages:
                  512
                  Likes Received:
                  572
                  Joined:
                  Jul 29, 2017
                  Location:
                  CT
                  Local Time:
                  12:16 PM
                  Well, right out of the gate it doesn't appear that it's even a small block mopar. In addition they have the photos marked as CCW rotation, but a small block distributor spins CW.

                  Multiple users, myself included, have posted photos that contradict what they're showing
                   
                  • Agree Agree x 2
                  • Mopar73340

                    Mopar73340 Well-Known Member

                    Messages:
                    214
                    Likes Received:
                    136
                    Joined:
                    Jan 10, 2009
                    Location:
                    Northern VA
                    Local Time:
                    12:16 PM
                    Exactly what I was thinking and why I didn’t want to comment until I saw others reactions. Total BS again.

                    Unfortunately we can’t reply over there as the thread is closed but I may reply in the thread about how to get more timing from SBM.
                     
                    • Like Like x 1
                    • TurboGLH

                      TurboGLH Well-Known Member

                      Messages:
                      512
                      Likes Received:
                      572
                      Joined:
                      Jul 29, 2017
                      Location:
                      CT
                      Local Time:
                      12:16 PM
                      The mods over there brought up the post, so I felt like I had to reply. If anyone else wants to chime in, now's the time.
                       
                      • Like Like x 2
                      1. This site uses cookies to help personalize content, tailor your experience and to keep you logged in if you register.
                        By continuing to use this site, you are consenting to our use of cookies.