Announcement

Collapse
No announcement yet.

Plastic Fantastic tew

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

  • So this, I think, is going to work

    reminder, 109 db, need 103... what it does is take the sharp out of the top.... dyno soon, so we'll see how it plays there... truth is the sidepipe headers do about everythng wrong - so a future thing will be new headers into the sidepipes... but that truly is a next winter deal

    next - tank vent installed

    got the parts to connect the hydramat to the Aeromotive A1000 pump

    you cannot baffle a tank too much. Can not. in this case, there will be trimming and fabbing but this is part one of at least 2 parts

    next it gets trimmed, then piano hinges on the bottom to seal.
    Once that's done, it will get more side to side baffling

    hopefully Sunday I'll be pressure testing...
    Doing it all wrong since 1966

    Comment


    • yeah... not. We're likely moving, so most of the time this weekend was that. Probably Idaho. I'm from there and there isn't a day I don't miss it..... backstory is I came to the Puget sound to go to school and accidently stayed - two failed attempts to leave - but likely going to happen before the end of summer..... but still, racing is going to happen and I did get some work done on that front.
      inside view

      baffle 1



      in other news, old tank has to come out (and brace for the wing, and new battery box for optima battery...

      I remember this view

      also going to powder coat the wheels.... I can't force myself to spend 5k on schnazzy wheels that may or may not be as good as GM wheels

      and a clear view of the suspension (lordy, cameras)

      had to take a picture of my stock, GM mounts ;)

      front is as stock as the rear

      oh and dbs.... 106 now (down from 109).... not 103 like I need.... I may put a baffle on the tip or just pray the db sensor at PIR (50 feet off the ground and 50 feet from the track) reads low... part of me says 'just go to SLC' - after all, it will be about the same distance from my new home as PDX.... never imagined when I decided to go racing that this would be a big issue...
      Last edited by SuperBuickGuy; March 6, 2022, 10:46 PM.
      Doing it all wrong since 1966

      Comment


      • I actually thought you were joking the other day when you said your car was to loud for the track. Tank is looking good and your welding skills blow mine right out of the water.

        When I was a kid they had sound checks where I used to ride my dirt bike and you just reminded me of it.
        Last edited by gconnsr; March 7, 2022, 12:05 AM.

        Comment


        • The inside of that tank baffles me. (Hey, it had to be said......)

          Dan

          Comment


          • Tanks, Dan.

            time to install the baffles

            welded

            braces... if you don't brace the tank (or don't brace it enough) eventually it will leak due to fatigue cracking

            because I'm using hydramat, baffles have to account for that - more directly, no sump but side to side motion needs to be minimized

            welded in place. tomorrow sealant and end caps

            got the wheels stripped today - off to powder coating tomorrow (I hope)

            Doing it all wrong since 1966

            Comment


            • time to cap

              key here is to not go fast


              and be clean

              hopefully crack checking tomorrow night
              Doing it all wrong since 1966

              Comment


              • onward

                welded 1/2 last night, other half tonight - and did it over a couple hours so I didn't get warping


                pretty welds leak. My goal here was full penetration - thus the weld has some grey in it - key here is the HAZ is even (heat affected zone)

                and all those black marks are holes - to check for leaks - I look for holes or HAZ changes

                for whatever reason, this side didn't have any

                then I put 7 or 8 psi in the tank, spray soapy water on the seams and blow bubbles

                hmmm more bubbles

                leaks fixed, clean up the tank.... next up, removal of the old tank eventually this will have tabs on the bottom so I can attach a defuser and also attach the rear panel to it
                Doing it all wrong since 1966

                Comment


                • Nice work on the tank! Been just lurking and enjoying seeing how you put it together.

                  Comment


                  • time to test fit

                    old tank

                    and out

                    get the fuel out... was joking with my dad that between the fuel in the tank and the nickel in the tank I should be concerned they'll both disappear

                    now you can see what the plan was

                    even got pretty close lining up the fill spout - the plan all along was an offset then straight into a coupling and the filler
                    Doing it all wrong since 1966

                    Comment


                    • tonight started mapping how I'm going to accomplish the tasks

                      was kind of hoping there would be some 'dos' and 'dont's' from the seller... guess not - this needs to attach to the deck and be supported underneath to the frame

                      here

                      the optima battery is 1" wider... so new battery box coming


                      part of tonight was a failed attempt to figure out whether the wire with a knot or the brown wire were the reverse light wires... I have a schematic - but who knows where


                      tomorrow I will spend some time on this but most of the day will be spent looking for used parts that I don't need....
                      Doing it all wrong since 1966

                      Comment


                      • I see the new tank is more contoured to the car than what you took out. Much better.
                        Last edited by gconnsr; March 12, 2022, 10:43 PM.

                        Comment


                        • Originally posted by gconnsr View Post
                          I see the new tank is more contoured to the car than what you took out. Much better.
                          aero, it's the top of a yet-to-be-built defuser... eventually, this will have a full belly pan - I bought the metal recently, if I have a chance, it will be on the car before July
                          Doing it all wrong since 1966

                          Comment


                          • Battery, cont.

                            it's like 1" wider... so a new tray is in order

                            and off

                            new tray

                            and installed and painted

                            at the swap meet today, I took a chance on several of these...

                            makes getting the burn off a lot easier

                            and reverse light....

                            Doing it all wrong since 1966

                            Comment


                            • The new battery just couldn't be 1" narrower now could it?

                              Dan

                              Comment


                              • Originally posted by SuperBuickGuy View Post
                                Tanks, Dan.

                                time to install the baffles

                                welded

                                braces... if you don't brace the tank (or don't brace it enough) eventually it will leak due to fatigue cracking

                                because I'm using hydramat, baffles have to account for that - more directly, no sump but side to side motion needs to be minimized

                                welded in place. tomorrow sealant and end caps

                                got the wheels stripped today - off to powder coating tomorrow (I hope)
                                This reminded me of the first fuel tank we made for the dirt modified. We ran methanol and the Firestone fuel cell foam and bladder would have failed within weeks if we tried it on fuel, so some 1/8 inch 6061 was procured. We made a rectangular tank that held 30 gallons of methanol. It had baffling but not fastened to the top adequately. It split the top right side seam in about 4 nights of hard left turns at the Valley. It got replaced with a 40 gallon sprint car tail tank.

                                Which had no baffling. We did what the sprint car guys did, stuffed a bunch of wiffle balls in it. The methanol doesn't affect them, they are mostly void, and they don't move around. Perfect baffles...

                                of course all the kids who donated wiffle balls might have wondered where their wiffle balls went!

                                Comment

                                Working...
                                X