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  • Turbo on a Carby?

    So is there a way to put a turbo on a 89' carb'd B3? I don't exactly plan on doing this, just a question that popped into my head. I'm sure simple folk have asked before, but I didn't get many results after searching.

    So this would be where one would reply with "If you have to ask you probably won't do it." I won't, but I sure wanna know! haha

    Don't make fun of me to much!! :p

    Thanks, Mike
    Mike Holmgren
    Thief Rvr Fls, MN
    1989 Festiva L, carb. 4 spd.
    "If at first you don't succeede, get a bigger hammer. If it breaks it needed to be replaced anyway."

  • #2
    Carb turbo setups are not the most uncommon thing in the world, but on a festy its way easier just to do a 'normal' efi turbo swap.

    It would take a ton of fabbing to get a carb turbo b3 to work. 0% chance of it working with a festy carb setup and a weber aint gonna cut it either.
    91GL BP/F3A with boost
    13.79 @ 100, 2.2 60' on 8 psi and 155R12's

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    • #3
      I get.curious sometimes about weird stuff to. To answer your question, ANYTHING can be turbo'd but a feedback carb would most likely not work. However I'm sure there's a weber out there that can.be converted to blowthrough but after all that trouble an xr2 swap is much more " beginner friendly" for lack of better words. Because of this site that is.


      fF.com FTW again!!
      1992 white L, Bp, American racing 13's, stock trans.
      1991 White L, BP/F5MR, protege header, full aspire swap with gr2's, seats, and sway bar, 15" konig's, short throw, escort console.
      1991 blue L, 5 speed.
      1988 red L-plus-all stock.

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      • #4
        ok brad, not callin you out, BUT.... the factory carb CAN work (as well as a weber). what you'd need to do is pressurize the carb (sealed box) and have a riasing rate fuel regulator that's tuned to a 2:1 (or so) increase. you'll also need to re-jet the carb, but very doable.
        Trees aren't kind to me...

        currently: 2 88Ls (Scrappy and Jersey), 88LX, 90L(Pepe), 91L, 91GL (Skippy) 93 GL Sport (the Mighty Favakk), 94 (Bruce) & 95 Aspire SEs, 97 Aspire (The Joker),
        94 Justy 4WD, 87 Fiero GT, plus 2 parts cars. That's my fleet.

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        • #5
          Propane carbies and turbos !!!

          Plus one above, keeping track of where pressure differences are and where
          they can go, this was more common years ago before injection was common
          and feasible.

          Quite a few VW rails with turbos on webers or dellortos were made..used
          to be common on the dunes.
          Last edited by Movin; 04-10-2012, 08:35 PM.
          Reflex paint by Langeman...Lifted...Tow Rig

          Comment


          • #6
            Didn't someone on here already do it. I think it was a primer black car. It was a very clean setup iirc.
            93 Festiva L White B6T
            99 Dodge Ram STL Green Cummins. AKA the Jolly Green Giant
            89 Festiva Blue
            91 Green “Mad Maxine” Festiva B6T
            93 Festiva GL Black BP automatic
            93 Festiva GL Green stock

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            • #7
              Originally posted by FestYboy View Post
              ok brad, not callin you out, BUT.... the factory carb CAN work (as well as a weber). what you'd need to do is pressurize the carb (sealed box) and have a riasing rate fuel regulator that's tuned to a 2:1 (or so) increase. you'll also need to re-jet the carb, but very doable.
              But, for the effort, is it worth it? Is it gonna make any more power than a b6 swap? And...how reliable is it gonna be?
              91GL BP/F3A with boost
              13.79 @ 100, 2.2 60' on 8 psi and 155R12's

              Comment


              • #8
                This is quite awsome to read. Now I just wish I understood more about the pressures involved.

                The internet is my friend though, and after work I think I'm going to begin attempting to learn.

                Thanks guys, Mike
                Mike Holmgren
                Thief Rvr Fls, MN
                1989 Festiva L, carb. 4 spd.
                "If at first you don't succeede, get a bigger hammer. If it breaks it needed to be replaced anyway."

                Comment


                • #9
                  That depends on a lot of crazy stuff...^^^wupps, Bhazard is who I answered!!
                  Last edited by Movin; 04-10-2012, 08:43 PM.
                  Reflex paint by Langeman...Lifted...Tow Rig

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                  • #10


                    You could blow through on a weber 3236. I'm considering doing it until I can afford a megasquirt. I already have a sealed box for the top of the carb with a 2.5" inlet on it.



                    Sent from my iPhone via tapatalk

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                    • #11
                      So I'm assuming the sealed box takes place of the normal air cleaner, in order to transfer the boost into the engine. What exatly does it mean to "blow through" unless it's just as simple that it is able to be turbo'd.

                      Sorry for these simplton questions, but I always have been the type that turbo's are for diesels and superchargers are for gas engines, and I don't know much about that either :p.

                      Thanks again, Mike

                      Wait a min, supercharged Festy!! :p hahaha Could I use the super charger off of my 2-71 Detroit Deisel, or would that be a bit much? :p I keed.
                      Last edited by 2xclutchin; 04-10-2012, 09:01 PM. Reason: Added the last part in.
                      Mike Holmgren
                      Thief Rvr Fls, MN
                      1989 Festiva L, carb. 4 spd.
                      "If at first you don't succeede, get a bigger hammer. If it breaks it needed to be replaced anyway."

                      Comment


                      • #12
                        Members Builds (questions about repair or how to do something belong in the proper forum)
                        -93' L BP swap/e-series, coilovers, RIO front swap, redrilled festy drums, Miata 14" 7 spokes.
                        -88' Mazda 323 SE, work in progress..
                        -85' Nissan Sentra 5 spd.

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                        • #13
                          Originally posted by 2xclutchin View Post
                          So I'm assuming the sealed box takes place of the normal air cleaner, in order to transfer the boost into the engine. What exatly does it mean to "blow through" unless it's just as simple that it is able to be turbo'd.
                          there's blow through (turbo before carb) and draw through (turbo AFTER carb, like in the Corvair Spyders). rollertoaser has a style you'd typicaly find with a centrifuge supercharger. what i'm about is a box that encloses the entire carb air tight. this makes things a little easier for tuning as the bowl sees the pressure and can compensate more easily than a tophat setup.
                          Trees aren't kind to me...

                          currently: 2 88Ls (Scrappy and Jersey), 88LX, 90L(Pepe), 91L, 91GL (Skippy) 93 GL Sport (the Mighty Favakk), 94 (Bruce) & 95 Aspire SEs, 97 Aspire (The Joker),
                          94 Justy 4WD, 87 Fiero GT, plus 2 parts cars. That's my fleet.

                          Comment


                          • #14
                            So in a draw through the carb would just have twice as much air coming through it, meaning more fuel also? So wouldn't that type of set-up be "easier" in retrospect to the other way?

                            I honestly am kinda talking out my hind-quarters since I have no idea.

                            Thanks, Mike

                            Also Thanks for that link Fred!!!
                            Mike Holmgren
                            Thief Rvr Fls, MN
                            1989 Festiva L, carb. 4 spd.
                            "If at first you don't succeede, get a bigger hammer. If it breaks it needed to be replaced anyway."

                            Comment


                            • #15
                              draw through is easiest, EXCEPT for the mounting... and that's the important part. there's an article in Corsa Communique about the corvair spyder turbo system and the jist is this: 10psi was safe for premium fuel of the day and they had to choak the exhaust system to limit the output from 220lbft to ~170 to keep from lunching the trans. good info really, but i have no way of posting it on here.
                              Trees aren't kind to me...

                              currently: 2 88Ls (Scrappy and Jersey), 88LX, 90L(Pepe), 91L, 91GL (Skippy) 93 GL Sport (the Mighty Favakk), 94 (Bruce) & 95 Aspire SEs, 97 Aspire (The Joker),
                              94 Justy 4WD, 87 Fiero GT, plus 2 parts cars. That's my fleet.

                              Comment

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