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1973 F-250 - Turbo BBF - It's alive!

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  • Re: 1973 F-250 - Turbo BBF - It's alive!

    Using a carb body as a TB is an interesting route. I really may have to investigate that further.

    I may just use traditional bungs and rails. The price difference between real bungs and some alternative is not enough to warrant the extra work or question answering. lol I really want to try the Alumaweld aluminum brazing rods to attach the bungs to the manifold. Seems like they might be a decent alternative to welding for stuff like this.
    Life is short. Be a do'er and not a shoulda done'er.
    1983 Mustang GT 302/T5 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


    • Re: 1973 F-250 - Turbo BBF - It's alive!

      that stuff is interesting ... you want an old torker (the junk small port one) to do it on?

      Probably not if you're using the 552, it might not flow enough for idle. Even with boost...
      Last edited by Beagle; August 23rd, 2018, 03:20 AM. Reason: some things never change, I still edit everything.
      Flying south, with a flock of bird dogs.

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      • Re: 1973 F-250 - Turbo BBF - It's alive!

        Haha, I'm good. Those old Torkers had tiny runners!
        Life is short. Be a do'er and not a shoulda done'er.
        1983 Mustang GT 302/T5 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


        • Re: 1973 F-250 - Turbo BBF - It's alive!

          Worked on heads this weekend. Pretty much just decarboned the chambers and cleaned the gasket surfaces. They cleaned up nice.

          Next job is grinding on the exhaust ports a bit and shortening the guides for more lift and modern valve stem seals.

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          Last edited by BBR; August 26th, 2018, 08:07 PM.
          Life is short. Be a do'er and not a shoulda done'er.
          1983 Mustang GT 302/T5 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


          • Re: 1973 F-250 - Turbo BBF - It's alive!

            Today I found a compressor map for this turbo. If I figured it all right, this thing will fall right in this turbo's happy zone. Right smack in the middle of the 78% efficiency island at 5000 rpm and up to 14psi of boost. At first I was afraid it was going to fall off the map by a good bit until I realized the map units were kg/s. . Silly metric system.

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            Life is short. Be a do'er and not a shoulda done'er.
            1983 Mustang GT 302/T5 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


            • Re: 1973 F-250 - Turbo BBF - It's alive!

              Since I am a budget minded guy, I sold some parts to buy some parts. In order to shorten the valve guides and shape them for positive stop seals, I had to buy an 11/32 arbor for my cutter. I already had the cutter from when I used it on a set of Dodge Magnum heads. Unfortunately they use an 8mm (5/16ish) stem, so I had to cough up $30 to do it right.

              I bought a set of fuel rail blanks and injector bungs from racepartsolutions. $66 for 2 19" fuel rail blanks and 8 bungs. Seemed like a decent deal to me. If you order from their website you get dinged for shipping. If you go through ebay, shipping is free. Go figure.

              In keeping with the chinesium theme, I bought an LS2 to Holley Dominator throttle body elbow and a 102mm LS2 style throttle body. I also have a 60mm wastegate and a 50mm blow off valve on the way. They should be here next week. So far, I have right at $550 invested in new parts. The only remaining big items are injectors, intercooler and fuel line/plumbing.

              Last edited by BBR; August 29th, 2018, 01:48 PM.
              Russell and milner351 like this.
              Life is short. Be a do'er and not a shoulda done'er.
              1983 Mustang GT 302/T5 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


              • Re: 1973 F-250 - Turbo BBF - It's alive!

                Rails and bungs in the parts chair!



                TheSilverBuick likes this.
                Life is short. Be a do'er and not a shoulda done'er.
                1983 Mustang GT 302/T5 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


                • Re: 1973 F-250 - Turbo BBF - It's alive!

                  I played machinist today. That cutter cuts the guides like butter. The stock guides limit lift to around 0.550" and use umbrella seals. I am probably good to 0.750 lift now, not that I need it though. The new guides use .530 positive stop seals. I left the spring locating steps in place because I do not plan to use dual springs.

                  I also put the engine on a stand and mocked up the driver's side exhaust manifold. It looks as if Ford meant for you to flip it backwards! Clears the oil filter very nicely but might interfere with my power steering pump....

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                  Last edited by BBR; September 1st, 2018, 04:00 PM.
                  Life is short. Be a do'er and not a shoulda done'er.
                  1983 Mustang GT 302/T5 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


                  • Re: 1973 F-250 - Turbo BBF - It's alive!

                    Pic with cutter.

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                    Life is short. Be a do'er and not a shoulda done'er.
                    1983 Mustang GT 302/T5 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


                    • Re: 1973 F-250 - Turbo BBF - It's alive!

                      yes!

                      Big question, what do they look like pointing backwards in the truck?
                      Flying south, with a flock of bird dogs.

                      Comment


                      • Re: 1973 F-250 - Turbo BBF - It's alive!

                        Jim - are you also going to machine for adjustable rockers or stay with the OEM setup?

                        I would really like you to publish some kind of final build / configuration with the turbos once you get it all worked out. My retention span is limited at my advanced age and it would be helpful to have a checklist to follow if I decide to do a turbo build for my truck.




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                        • Re: 1973 F-250 - Turbo BBF - It's alive!

                          I am just going to use stock rockers since I plan to keep the rpm's down. I just don't think any additional performance would be worth the cost and effort.

                          I will try to sum it all up once it is all together and working.

                          Beagle: I don't know. I have not looked at the other manifold yet because it is still on the donor engine. That side of the motor is against the wall in the shop and is kinda buried at the moment.
                          Last edited by BBR; September 2nd, 2018, 07:17 PM.
                          Life is short. Be a do'er and not a shoulda done'er.
                          1983 Mustang GT 302/T5 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


                          • Re: 1973 F-250 - Turbo BBF - It's alive!

                            I bet it will fit in the truck, the power steering pump on the other hand my have to find a new home
                            http://www.bangshift.com/forum/forum...-consolidation

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                            • Re: 1973 F-250 - Turbo BBF - It's alive!

                              Plan B is to use a Volvo electric power steering pump. They have been used successfully with the crown vic rack.

                              The other side does not play as nice. The manifold interferes with the engine mount boss on the block.

                              At this point I have not 100% mapped out where the hot side piping is going to go, so side to side swapping may not be necessary.

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                              Life is short. Be a do'er and not a shoulda done'er.
                              1983 Mustang GT 302/T5 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


                              • Re: 1973 F-250 - Turbo BBF - It's alive!

                                Flip them up? What about two passenger sides and run it down and around?
                                Teddyzee likes this.
                                http://www.bangshift.com/forum/forum...-consolidation

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