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BBR's 83GT - 552 BBF version 3.0 (at least)

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  • hmmm, usually when someone asks for pictures, it's not to praise me..... nice to see there is a converse.
    Doing it all wrong since 1966

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    • Originally posted by SuperBuickGuy View Post
      hmmm, usually when someone asks for pictures, it's not to praise me..... nice to see there is a converse.
      They usually aren't asking when you get those kind of pictures taken. :| The last picture I had taken from the neighborhood guys included a letter saying "Move this thing"... we won't talk about any other involuntary pictures. lol.

      "Just because you are a character, doesn't mean you have character" - Winston Wolf

      Meanwhile, nice!
      Flying south, with a flock of bird dogs.

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      • We took it to the track Friday night. The thing was a turd. 14.40's at 108 mph. The converter is just so tight it won't launch to save it's life. It would roll out and the boost would not ramp in until the very top of first gear waaaaay down the track.... like 330 feet. Converter is stalling at 2000 rpm so you can't footbrake it to make any boost either. It is supposed to be a 2200-2800 converter. This motor at our elevation just does not make enough torque at 2000 to launch worth a whooptie. Gotta make some rpm to make boost and it can't make rpm with a converter this tight. The 5 speed allowed for some launch rpm flexibility that the automatic does not. We tried jetting changes & timing changes trying to get it to make some more low end power, but it was a wash. DA was 6500+ feet.

        We are going to try a couple of things. 1. Different converter. No sense in trying to work around a converter this is just fighting us. I ordered a Roadrunner Converters 3200-3500 converter hoping it will stall at around 3000. haha. 2. Test it with a set of 26" ET Streets instead of the 28" slicks to help this little motor get the car out of the hole. 3. play with the 2 step. This is kinda last because the 2 step has never functioned quite like I expected as far as setting the rpm goes. Might be just me not knowing how the parameters in MS actually work. lol

        Trying to get it working right well in advance of the Buick v. Ford shootout this year.

        We are also going to replace the front seal because it has leaked since we put this trans in the car.

        Click image for larger version

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        Life is short. Be a do'er and not a shoulda done'er.
        1969 Galaxie 500 https://bangshift.com/forum/forum/ba...ild-it-s-alive
        1998 Mustang GT https://bangshift.com/forum/forum/ba...60-and-a-turbo
        1983 Mustang GT 545/552/302/Turbo302/552 http://www.bangshift.com/forum/forum...485-bbr-s-83gt
        1973 F-250 BBF Turbo Truck http://www.bangshift.com/forum/forum...uck-conversion
        1986 Ford Ranger EFI 545/C6 https://bangshift.com/forum/forum/ba...tooth-and-nail

        Comment


        • that's a lot of MPH for a 14 or 13 anything though... at least it's making power.
          Flying south, with a flock of bird dogs.

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          • Yeah it is putting about 350ish to the tire, which would be around a 150 hp improvement over n/a. Haha
            Life is short. Be a do'er and not a shoulda done'er.
            1969 Galaxie 500 https://bangshift.com/forum/forum/ba...ild-it-s-alive
            1998 Mustang GT https://bangshift.com/forum/forum/ba...60-and-a-turbo
            1983 Mustang GT 545/552/302/Turbo302/552 http://www.bangshift.com/forum/forum...485-bbr-s-83gt
            1973 F-250 BBF Turbo Truck http://www.bangshift.com/forum/forum...uck-conversion
            1986 Ford Ranger EFI 545/C6 https://bangshift.com/forum/forum/ba...tooth-and-nail

            Comment


            • While it was idling waiting for us to open the shop door the other night, it started puking water out the overflow. We pulled it in, shrugged our shoulders and went home. The water temp gauge was not working, but we have never had overheating trouble with this car so it was unusual.

              I pulled it out of it's spot today, topped off the water and let it idle. Temp came up to 160, then I turned on the fan but it kept going up. I shut it off at 220 and looked under the hood. The first thing I noticed was that the upper radiator hose was not hot. I grabbed the laser thermometer and sure enough, the thermostat housing was 207, but the radiator tank was only 97. Barely above the ambient air temperature.

              So I am about 100 percent sure we have a stuck thermostat.
              Last edited by BBR; June 22, 2021, 08:50 PM.
              Life is short. Be a do'er and not a shoulda done'er.
              1969 Galaxie 500 https://bangshift.com/forum/forum/ba...ild-it-s-alive
              1998 Mustang GT https://bangshift.com/forum/forum/ba...60-and-a-turbo
              1983 Mustang GT 545/552/302/Turbo302/552 http://www.bangshift.com/forum/forum...485-bbr-s-83gt
              1973 F-250 BBF Turbo Truck http://www.bangshift.com/forum/forum...uck-conversion
              1986 Ford Ranger EFI 545/C6 https://bangshift.com/forum/forum/ba...tooth-and-nail

              Comment


              • Comment


                • Converter just showed up. That was fast. 3200-3500 rated stall. I have never used a Roadrunner brand converter but they seem to have a good reputation. I expect it to really to stall at 3000 with our engine and elevation. Looks like a really nice piece. The billet back cover is nice and it is supposed to have a thicker front cover to resist ballooning. Not that we make enough power to balloon it though. Haha.

                  Click image for larger version

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                  Life is short. Be a do'er and not a shoulda done'er.
                  1969 Galaxie 500 https://bangshift.com/forum/forum/ba...ild-it-s-alive
                  1998 Mustang GT https://bangshift.com/forum/forum/ba...60-and-a-turbo
                  1983 Mustang GT 545/552/302/Turbo302/552 http://www.bangshift.com/forum/forum...485-bbr-s-83gt
                  1973 F-250 BBF Turbo Truck http://www.bangshift.com/forum/forum...uck-conversion
                  1986 Ford Ranger EFI 545/C6 https://bangshift.com/forum/forum/ba...tooth-and-nail

                  Comment


                  • I installed a new water temp gauge and popped the old thermostat out. I decided to just gut it and stick it back in. I added a small "stand pipe" to one of the ports on the intake manifold to help bleed air out. Worked great. I fired it up and let it run and it seems to be fine now. It took quite a whlle to warm up to 120° even with no fan running.

                    Then I turned my attention to swapping the converter. Everything went smoothly and I was doing good and not making a mess until..... Until the converter studs stuck in the flexplate and the converter pulled out of the trans.....

                    Glug glug glug.... Great. So much for not making a mess.

                    Pulled the converter out and man, I had forgotten just how huge it is. It is gigantic compared to the one I am putting back in! Tomorrow I'll try to get the front seal out and pop the new one in and maybe button it all back up.

                    Oh yeah, trans swap tip: a sparkplug is just the right size to jam into the rubber dipstick grommet to keep it from puking fluid everywhere.

                    Click image for larger version

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                    Life is short. Be a do'er and not a shoulda done'er.
                    1969 Galaxie 500 https://bangshift.com/forum/forum/ba...ild-it-s-alive
                    1998 Mustang GT https://bangshift.com/forum/forum/ba...60-and-a-turbo
                    1983 Mustang GT 545/552/302/Turbo302/552 http://www.bangshift.com/forum/forum...485-bbr-s-83gt
                    1973 F-250 BBF Turbo Truck http://www.bangshift.com/forum/forum...uck-conversion
                    1986 Ford Ranger EFI 545/C6 https://bangshift.com/forum/forum/ba...tooth-and-nail

                    Comment


                    • Bummer about the spill. Anytime I do anything involving an auto trans I get an Exxon Valdezes sized spill so I can relate.

                      Dan

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                      • Converter swap is done! It went together so smoothly it felt like I was doing something wrong. Haha.

                        I was watching a transmission rebuild video for AODs a while back and the guy in the video drilled a hole in the bell housing so he could stick a screwdriver in there and push the converter forward when installing it. That is a genius modification because it made sliding the converter forward into the flexplate a piece of cake.

                        I also discovered that six out of the eight rear suspension bolts were loose, like really loose, like turn them with your fingers loose. Yikes!

                        I ran it on jack stands. No drive yet because it was pouring rain outside, but everything seems to work properly.

                        Click image for larger version

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                        Life is short. Be a do'er and not a shoulda done'er.
                        1969 Galaxie 500 https://bangshift.com/forum/forum/ba...ild-it-s-alive
                        1998 Mustang GT https://bangshift.com/forum/forum/ba...60-and-a-turbo
                        1983 Mustang GT 545/552/302/Turbo302/552 http://www.bangshift.com/forum/forum...485-bbr-s-83gt
                        1973 F-250 BBF Turbo Truck http://www.bangshift.com/forum/forum...uck-conversion
                        1986 Ford Ranger EFI 545/C6 https://bangshift.com/forum/forum/ba...tooth-and-nail

                        Comment


                        • The hole in the bellhousing tip is a great one. If I have mine out (no reason to at this time) I'll do that. Like your air dyno!

                          Dan
                          Last edited by DanStokes; June 26, 2021, 11:29 AM.

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                          • Dang... will they give you grief at tech over the bell? Offhand, I think tighten up the suspension bolts is a much better idea!! Glad it stayed together. gulp.
                            Flying south, with a flock of bird dogs.

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                            • Tech? Who does that anymore? Haha. No worries about that. I mean just looking at it you would never know it wasn't something that was supposed to be there. 3/4" diameter.
                              Life is short. Be a do'er and not a shoulda done'er.
                              1969 Galaxie 500 https://bangshift.com/forum/forum/ba...ild-it-s-alive
                              1998 Mustang GT https://bangshift.com/forum/forum/ba...60-and-a-turbo
                              1983 Mustang GT 545/552/302/Turbo302/552 http://www.bangshift.com/forum/forum...485-bbr-s-83gt
                              1973 F-250 BBF Turbo Truck http://www.bangshift.com/forum/forum...uck-conversion
                              1986 Ford Ranger EFI 545/C6 https://bangshift.com/forum/forum/ba...tooth-and-nail

                              Comment


                              • Now that the converter is not choking the launch, it is time to make this carb work better. It has a pretty big stumble when the throttle is yanked open. If you hold the brake and bring the rpm up, you can throttle through it, but it is annoying when just driving around.

                                I decided to re-think the carb a bit and try to not think about boost. As in, "what would I do if it was n/a and had this problem?". The stumble was obviously a lean condition, crutched by pumping the throttle and squirting more fuel in there. The accel pump cams are already really big, so the next thought was the power valve. It needs to open sooner. I checked my carb config I keep on my phone and sure enough, I put a 2.5 in it. I checked the vacuum at idle in gear and it was ~14 so I put a 6.5 in. I have a 2.5, 3.5, 4.5, 6.5, and 10.5 available. The low speed air bleed was a 72, so I got a couple of brass set screws out and drilled them to 67. This should richen up the low speed circuits a little. The hsab are 25's. I could probably go down on those to a 23 or 22 to bring the mains in a little earlier if I feel like it needs it.

                                I took it out for a spin and there is no more stumble. Whoo hoo. It was a literal spin because if you footbrake it and bring any sort of boost up, it just spins the tires. It can still use some tuning, but I finally feel like it is actually getting better vs. just getting different, if that makes sense.

                                Also, I don't have the vent tube extensions on it right now. Mainly because I can't find them but also because we don't have any trouble moving fuel at max boost. One thing I did do though was to rotate the angle cut vent tubes to both face the incoming air stream. The primary side was sorta aimed at it, but the secondary one was completely facing the carb hat wall. Will it make a difference? Idk but it makes me feel better.

                                Oh and I put a new converter seal in this thing, but it still leaks. Boo.

                                It also still has the annoying pop/misfire just before the boost really comes in. I am leaning towards a bad TFI or something else ignition related as the cause. This TFI emits a strange high pitched squeal when the key is on and the engine is not running, so it will be the first thing I check.

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                                Last edited by BBR; June 27, 2021, 09:36 PM.
                                Life is short. Be a do'er and not a shoulda done'er.
                                1969 Galaxie 500 https://bangshift.com/forum/forum/ba...ild-it-s-alive
                                1998 Mustang GT https://bangshift.com/forum/forum/ba...60-and-a-turbo
                                1983 Mustang GT 545/552/302/Turbo302/552 http://www.bangshift.com/forum/forum...485-bbr-s-83gt
                                1973 F-250 BBF Turbo Truck http://www.bangshift.com/forum/forum...uck-conversion
                                1986 Ford Ranger EFI 545/C6 https://bangshift.com/forum/forum/ba...tooth-and-nail

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