1963 FI "S" Tube - NCRS Discussion Boards

1963 FI "S" Tube

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  • Chuck G.
    Extremely Frequent Poster
    • May 31, 1982
    • 2029

    1963 FI "S" Tube

    A friend is restoring an early FI car.

    Attached are some photos. What is everyone's opinion on this S tube?

    It's not for sale.

    It's roughly configured. There are DEEP creases and folds where it was formed. It's thin metal like the later ones, not thick.

    It's spot welded, and you can easily see the spot welding on both the top and bottom seams.

    It has the ITI logo on the clamp.

    Thoughts? I think it's an early original, but I haven't looked at that many to be sure.

    TIA

    Chuck
    Attached Files
    1963 Corvette Conv. 327/360 NCRS Top Flight
    2006 Corvette Conv. Velocity Yellow NCRS Top Flight
    1956 Chevy Sedan. 350/4 Speed Hot Rod
  • Chuck G.
    Extremely Frequent Poster
    • May 31, 1982
    • 2029

    #2
    Re: 1963 FI "S" Tube

    More photos.
    Attached Files
    1963 Corvette Conv. 327/360 NCRS Top Flight
    2006 Corvette Conv. Velocity Yellow NCRS Top Flight
    1956 Chevy Sedan. 350/4 Speed Hot Rod

    Comment

    • Dan H.
      Extremely Frequent Poster
      • July 31, 1977
      • 1368

      #3
      Re: 1963 FI "S" Tube

      Doc, the ITI looks NTP and rest is way too crude looking, I vote as a 'nice try' at a repro.
      1964 Red FI Coupe, DUNTOV '09
      Drove the 64 over 5000 miles to three Regionals and the San Jose National, one dust storm and 40 lbs of bugs!

      Comment

      • Rick A.
        Extremely Frequent Poster
        • July 31, 2002
        • 2147

        #4
        Re: 1963 FI "S" Tube

        Doc Chuck would tend to agree with Dan as an early attempt at repop
        Rick Aleshire
        2016 Ebony C7R Z06 "ROSA"

        Comment

        • Bob J.
          Very Frequent User
          • November 30, 1977
          • 713

          #5
          Re: 1963 FI "S" Tube

          Chuck,
          I agree with Dan on both points.
          The ITI looks hand stamped.
          Bob J

          Comment

          • Chuck G.
            Extremely Frequent Poster
            • May 31, 1982
            • 2029

            #6
            Re: 1963 FI "S" Tube

            Thanks to all so far.

            When I first looked at it, I thought repro, but the more I looked at it, I thought............ Hmmmmmm, maybe it might not be. It is crudely made.

            This is from an early FI car...built in 62. Has the correct early AC cannister with the clamps in the right places. Has all cad/zinc plated fuel and vacuum lines... early FI unit with nozzle block recesses, etc. etc.
            1963 Corvette Conv. 327/360 NCRS Top Flight
            2006 Corvette Conv. Velocity Yellow NCRS Top Flight
            1956 Chevy Sedan. 350/4 Speed Hot Rod

            Comment

            • Dan H.
              Extremely Frequent Poster
              • July 31, 1977
              • 1368

              #7
              Re: 1963 FI "S" Tube

              Chuck, my friend here in San Diego has 63 Vin 697, nice early original unit, and his 'S' tube is as you would expect it to look, nothing unusual about it like that one. Just sayin!
              1964 Red FI Coupe, DUNTOV '09
              Drove the 64 over 5000 miles to three Regionals and the San Jose National, one dust storm and 40 lbs of bugs!

              Comment

              • Joe R.
                Extremely Frequent Poster
                • July 31, 1976
                • 4547

                #8
                Re: 1963 FI "S" Tube

                The S-tube shown is a very early attempt made in New York state! All the FI guys know him as he has made many reproductions of FI parts that are still being used. Right John???


                JR

                Comment

                • Chuck G.
                  Extremely Frequent Poster
                  • May 31, 1982
                  • 2029

                  #9
                  Re: 1963 FI "S" Tube

                  Originally posted by Joe Ray (1011)
                  The S-tube shown is a very early attempt made in New York state! All the FI guys know him as he has made many reproductions of FI parts that are still being used. Right John???


                  JR
                  Hi JR.

                  Does this guy in New York have the initials JN ?
                  1963 Corvette Conv. 327/360 NCRS Top Flight
                  2006 Corvette Conv. Velocity Yellow NCRS Top Flight
                  1956 Chevy Sedan. 350/4 Speed Hot Rod

                  Comment

                  • Joe R.
                    Extremely Frequent Poster
                    • July 31, 1976
                    • 4547

                    #10
                    Re: 1963 FI "S" Tube

                    Originally posted by Chuck Gongloff (5629)
                    Hi JR.

                    Does this guy in New York have the initials JN ?
                    Chuck,

                    That would be him!

                    JR

                    Comment

                    • Chuck G.
                      Extremely Frequent Poster
                      • May 31, 1982
                      • 2029

                      #11
                      Re: 1963 FI "S" Tube

                      Originally posted by Joe Ray (1011)
                      Chuck,

                      That would be him!

                      JR
                      Thanks, JR...

                      And, thanks to all who responded.

                      My bud is coming by today to pick it up. Guess he'll be looking for a correct one.

                      I know that "some" early 63's supposedly have a very thick metal S tube. I've actually never seen one.

                      Chuck
                      1963 Corvette Conv. 327/360 NCRS Top Flight
                      2006 Corvette Conv. Velocity Yellow NCRS Top Flight
                      1956 Chevy Sedan. 350/4 Speed Hot Rod

                      Comment

                      • John D.
                        Extremely Frequent Poster
                        • November 30, 1979
                        • 5507

                        #12
                        Re: 1963 FI "S" Tube

                        Actually guru's I don't completely agree. Got on this post late.
                        First of all the JN repro s tube was made out of FIBERGLASS Joe Ray. Whew!!!!! LOL
                        Second of all just last week a new customer brought in an S tube for me to look at. It was definitely original but let me tell you it did not begin to be hammered up/dented/squished as the one in the photo.
                        Dr. Chuck. That S tube looks like it came out of wreck. I mean look at the bends-dents. Compare it to your '63 FI car. I assume your AC is original.
                        Meanwhile the very early '63's had an S-tube all on it's own. Much thicker gauge of sheet metal. The overlap on the thick s-tube was not like the later '63, up S-tubes. In fact the early early S-tube overlap very closely resembled Podell's old repro S-tube. The one he made many years ago.
                        As far as the clamp goes on S-tube I think it's massaged/suspicious.
                        The bolt logo is EL. I don't know the length of the bolt.

                        QT: I have a question about some of the 63 S tube clamp bolts, My 63 FI car known as the LWC (little white car) has a weird clamp/bolt
                        setup.


                        The bolt and bracket are spot welded upside down. Meaning when you are standing looking at the s-tube you do not see the head of the bolt.
                        All you see is the treads of the bolt. When the car was re-restored I was going to fix that issues and was told by Master judges who know FI's not to touch it as they have seen others like that.
                        Have any of your see the clamp backwards so all you see is the end of the bolt?????

                        I have seen around three thick s-tubes on restored cars. One of them got dinged at a big show cause the judges (one of them on the board here all the time lol) show it was a repro cause of the seam.

                        Maybe RJ will put up nice pic of a thick S-tube and the seam. Too bad Mike Hanson isn't on here as he probably has that pic. JD

                        Comment

                        • Don H.
                          Moderator
                          • June 16, 2009
                          • 2240

                          #13
                          Re: 1963 FI "S" Tube

                          Originally posted by John DeGregory (2855)

                          QT: I have a question about some of the 63 S tube clamp bolts, My 63 FI car known as the LWC (little white car) has a weird clamp/bolt
                          setup. The bolt and bracket are spot welded upside down. Meaning when you are standing looking at the s-tube you do not see the head of the bolt.
                          All you see is the treads of the bolt. When the car was re-restored I was going to fix that issues and was told by Master judges who know FI's not to touch it as they have seen others like that.
                          Have any of your see the clamp backwards so all you see is the end of the bolt?????


                          I have seen around three thick s-tubes on restored cars. One of them got dinged at a big show cause the judges (one of them on the board here all the time lol) show it was a repro cause of the seam.

                          Maybe RJ will put up nice pic of a thick S-tube and the seam. Too bad Mike Hanson isn't on here as he probably has that pic. JD

                          yes sir,
                          I have an S-tube like that.

                          Comment

                          • Chuck G.
                            Extremely Frequent Poster
                            • May 31, 1982
                            • 2029

                            #14
                            Re: 1963 FI "S" Tube

                            Thanks for the response, JD. You're saying that JN's repros were fiberglass. I don't know. I never bought much from him, as I found him difficult to deal with.

                            This S tube does not look like it was involved in a wreck. It looks to be formed this way. The deep bends/folds are smooth, not jagged. Doesn't look like it was crunched from front to back.

                            My bud came over to the house the other day, and although we didn't try to install it on my car, it looked to have the correct "length" to fit between the air cleaner cannister and the core support.

                            IIRC, it had 10 spot welds on the top, and again, IIRC, 8 welds are what one normally finds.
                            1963 Corvette Conv. 327/360 NCRS Top Flight
                            2006 Corvette Conv. Velocity Yellow NCRS Top Flight
                            1956 Chevy Sedan. 350/4 Speed Hot Rod

                            Comment

                            • Joe R.
                              Extremely Frequent Poster
                              • July 31, 1976
                              • 4547

                              #15
                              Re: 1963 FI "S" Tube

                              Originally posted by John DeGregory (2855)
                              Actually guru's I don't completely agree. Got on this post late.
                              First of all the JN repro s tube was made out of FIBERGLASS Joe Ray. Whew!!!!! LOL
                              Second of all just last week a new customer brought in an S tube for me to look at. It was definitely original but let me tell you it did not begin to be hammered up/dented/squished as the one in the photo.
                              Dr. Chuck. That S tube looks like it came out of wreck. I mean look at the bends-dents. Compare it to your '63 FI car. I assume your AC is original.
                              Meanwhile the very early '63's had an S-tube all on it's own. Much thicker gauge of sheet metal. The overlap on the thick s-tube was not like the later '63, up S-tubes. In fact the early early S-tube overlap very closely resembled Podell's old repro S-tube. The one he made many years ago.
                              As far as the clamp goes on S-tube I think it's massaged/suspicious.
                              The bolt logo is EL. I don't know the length of the bolt.

                              QT: I have a question about some of the 63 S tube clamp bolts, My 63 FI car known as the LWC (little white car) has a weird clamp/bolt
                              setup.


                              The bolt and bracket are spot welded upside down. Meaning when you are standing looking at the s-tube you do not see the head of the bolt.
                              All you see is the treads of the bolt. When the car was re-restored I was going to fix that issues and was told by Master judges who know FI's not to touch it as they have seen others like that.
                              Have any of your see the clamp backwards so all you see is the end of the bolt?????

                              I have seen around three thick s-tubes on restored cars. One of them got dinged at a big show cause the judges (one of them on the board here all the time lol) show it was a repro cause of the seam.

                              Maybe RJ will put up nice pic of a thick S-tube and the seam. Too bad Mike Hanson isn't on here as he probably has that pic. JD
                              JD,

                              Your not comparing this S-Tube to the one on the Repo-Mobile (LWC) are you??????

                              JR

                              Comment

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