GR70-15 Radials - NCRS Discussion Boards

GR70-15 Radials

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  • Jim W.
    Frequent User
    • November 1, 1994
    • 94

    #16
    Re: GR70-15 Radials

    Well I personally did the best I could on the restoring. I removed each part and found a rebuilder who rebuilt my originals, The alterator, was a replacement. So I wrote down the correct serial number, and I went to a Corvette only wreaking yard and found on from a burnt out 79, but the alternator was rebuildable, so i had it done and intalled it on my79. But the tires I bought in 1994 were already five years old when I bought them. They weren't the exact tire, but they were really close to the original. And that was as close as I could get. I contacted Coker tire and they said there were no tires in stock for my 79 and they had no plans to produce any in the future. So that is what I had to deal with !
    Each day is a gift, respect it, and enjoy it as if it were the last!

    Comment

    • Harmon C.
      Extremely Frequent Poster
      • August 31, 1994
      • 3228

      #17
      Re: GR70-15 Radials

      Originally posted by Terry McManmon (3966)
      You are right Lyle. I do believe that deduction chart was formulated before we judged Corvettes that were originally equipped with radial tires. You know who to appeal to for a change in that.
      I have a set of zero deduction brand new spares for judging so someone else needs to carry the flag on this one. I don't plan to drive a 73 to be judged if I need a 97 and for a 94 if I drive the 60% don't hurt much.
      Lyle

      Comment

      • Terry M.
        Beyond Control Poster
        • September 30, 1980
        • 15573

        #18
        Re: GR70-15 Radials

        Originally posted by Patrick Hulst (16386)
        I could have sold several stickers but didn't say a word. Just deducted the points.

        Patrick
        Geepers, don't do that. It looks really bad for the judges to be selling parts to the owners. Taking bribes is OK, but selling parts is a no no.

        Really guys, JK
        Terry

        Comment

        • Terry M.
          Beyond Control Poster
          • September 30, 1980
          • 15573

          #19
          Re: GR70-15 Radials

          And that is what everyone has to do. If one can't be exact, get as close as you can. The rewards are as many points as you can get.

          No Corvette is ever perfect. I would bet my 2008 wouldn't have scored 100% the day I picked it up at the Museum, and it has been all down hill since.

          Remind me to tell you about my "There are no Corvette virgins" point of view some time when we are face to face. I can't post it here -- they would throw me off.
          Terry

          Comment

          • Jack H.
            Extremely Frequent Poster
            • April 1, 1990
            • 9906

            #20
            Re: GR70-15 Radials

            The "DOES NOT EXIST" statement is a bit 'hard'...

            Most every rare/elusive part 'exists'. It's simply a matter of how hard, how long you look for it and what you wind up paying for it in the end!

            Now, the standard deduction table gives relatively generous partial credit (60% originality deduct) for modern service replacement tires. So, I do not see how NCRS policy (as originally built and delivered to the original owner sans dealer/owner inspired additions/deletions) is a HUGE burden for these cars that would prevent them from enjoying top award honor(s)...

            On the lack of Firestone steel belted radials, we may be LUCKY that they're not available! There were design/construction problems with these tires (I had one do a tread separation on me).

            But, that would/could fall under another NCRS judging rule (recall campaign modification). Consult your copy of the NCRS Judging Reference Manual for details...

            Comment

            • Jim W.
              Frequent User
              • November 1, 1994
              • 94

              #21
              Re: GR70-15 Radials

              I look forward to it Terry, Thank you !
              Each day is a gift, respect it, and enjoy it as if it were the last!

              Comment

              • Patrick H.
                Beyond Control Poster
                • December 1, 1989
                • 11608

                #22
                Re: GR70-15 Radials

                Originally posted by Terry McManmon (3966)
                Geepers, don't do that. It looks really bad for the judges to be selling parts to the owners. Taking bribes is OK, but selling parts is a no no.

                Really guys, JK
                LOL!

                Nope, never said a thing....
                Vice-Chairman (West), Michigan Chapter NCRS
                71 "deer modified" coupe
                72 5-Star Bowtie / Duntov coupe. https://www.flickr.com/photos/124695...57649252735124
                2008 coupe
                Available stickers: Engine suffix code, exhaust tips & mufflers, shocks, AIR diverter valve broadcast code.

                Comment

                • Jim W.
                  Frequent User
                  • November 1, 1994
                  • 94

                  #23
                  Re: GR70-15 Radials

                  You make an excellant point Jack, In my case I had the right brand, size and tread, but the wrong model tire for my car. Is it nit-picking, maybe but the judges have to fall back on something when there's a judgement call !
                  Each day is a gift, respect it, and enjoy it as if it were the last!

                  Comment

                  • Harmon C.
                    Extremely Frequent Poster
                    • August 31, 1994
                    • 3228

                    #24
                    Re: GR70-15 Radials

                    Originally posted by Jack Humphrey (17100)
                    The "DOES NOT EXIST" statement is a bit 'hard'...

                    Most every rare/elusive part 'exists'. It's simply a matter of how hard, how long you look for it and what you wind up paying for it in the end!

                    Now, the standard deduction table gives relatively generous partial credit (60% originality deduct) for modern service replacement tires. So, I do not see how NCRS policy (as originally built and delivered to the original owner sans dealer/owner inspired additions/deletions) is a HUGE burden for these cars that would prevent them from enjoying top award honor(s)...

                    On the lack of Firestone steel belted radials, we may be LUCKY that they're not available! There were design/construction problems with these tires (I had one do a tread separation on me).

                    But, that would/could fall under another NCRS judging rule (recall campaign modification). Consult your copy of the NCRS Judging Reference Manual for details...
                    The point is up to 72 their are repo's you can buy for not too much more that a todays tire and get less than the 60%hit. For 73-77 a new tire gets - 60% and thier is no other choice for a GR-70-15 but a p225-70 r 15 with a 60% deduction .
                    Lyle

                    Comment

                    • Pat M.
                      Extremely Frequent Poster
                      • April 1, 2006
                      • 1575

                      #25
                      Re: GR70-15 Radials

                      Originally posted by Lyle Chamberlain (24961)
                      The point is up to 72 their are repo's you can buy for not too much more that a todays tire and get less than the 60%hit. For 73-77 a new tire gets - 60% and thier is no other choice for a GR-70-15 but a p225-70 r 15 with a 60% deduction .
                      But many owners face similar situations. Most C4 batteries are not and possibly will never be repoed, and it's next to impossible to find an original. So should C4 owners get a break in judging since early Sharks can get a nearly correct repo battery that may draw less deductions?

                      Where, and for which cars, should such accomodations end?

                      IMHO, NCRS has done a great job of maintaining a standard to which we can all strive, while also allowing for enough points so that nearly every car can garner some of the highest awards with enough effort.

                      Comment

                      • Jack H.
                        Extremely Frequent Poster
                        • April 1, 1990
                        • 9906

                        #26
                        Re: GR70-15 Radials

                        NCRS didn't craft the judging rules based on what's available in reproduction, what's 'easy' to get, what's affordable to purchase...

                        The 'hit' for service replacement tires does NOT preclude that car/owner from achiving top award honors. Therefore, I'm not pursuaded by the availablity/economic argument.

                        Each year of Corvette poses its own 'challenge' issues in restoration/preservation. Nothing is new or unique here.

                        Go back far enough and there were times where this/that reproduction part we take for granted today didn't exist. That didn't stop the true afficianado from buying the car, restoring it as best he/she could and taking it out onto the campaign trail.

                        Heck, I remember when exterior paint was a single line item and you lost EVERYTHING for a non-lacquer appearence and/or obvious clear coat...

                        Comment

                        • William M.
                          Very Frequent User
                          • July 31, 1993
                          • 390

                          #27
                          Re: GR70-15 Radials

                          I e-mailed Coker and Kelsey about the possibility of reproducing either Goodyear Steelgards or Firestone 500's. Coker said they "don't have any way of reproducing Goodyear or Firestone radials". Kelsey responded that their decision maker is out of town and will get back to me when he returns. I'm not holding my breath
                          1973 LS4 coupe. Dark Blue / Black. Turbo Hydra-Matic, PW, PB, PS, Rear Defog, Tilt/Tele, AC, Map Lamp, AM/FM.
                          Top Flight Chapter 2008, Regional 2009, National 2010
                          NCRS Gallery IX Corvettes @ Carlisle 2009
                          Bloomington Gold 2011
                          Corvette Magazine 9/11
                          Corvette 68-82 Restoration Guide 2nd Ed

                          1963 L75 coupe. Daytona Blue / Dark Blue. Powerglide, Posi, AM/FM Radio.
                          Top Flight Chapter 2011, National 2013
                          Bloomington Gold 2013
                          Corvette Magazine 3/13
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                          Comment

                          • Peter G.
                            Very Frequent User
                            • December 1, 1980
                            • 406

                            #28
                            Re: GR70-15 Radials

                            I think many Corvette owners with 73-77 cars have at least two sets of tires. I know I do just for this situation.

                            Repos not being made yet in GR70-15.

                            I have a original set of the Firestone Radial 500 in GR70-15 size for judging and of course because these tires were recalled just after they were manufactured they ARE NOT SAFE to drive on. I have another set of Goodyear GTII in P225/70-15 for safe driving. I keep the tires on separate wheels also to make change over easier.

                            I believe like Terry has said. The repos radial tires will come sometime in the future.
                            Peter Gregory # 4157

                            National Corvette Restorers Society Since 1980

                            Comment

                            • Harmon C.
                              Extremely Frequent Poster
                              • August 31, 1994
                              • 3228

                              #29
                              Re: GR70-15 Radials

                              The way I look at the tire deduction chart the thing that gets a 73-77 in the 60% area is a P-225-70 R-15 is not the same size as a GR-70-15. For later years that are being judged and came with a P-225-70R-15 I would think a deduction less than 60% could be taken for a tire you could buy today. I have originals and is the only way to go if you want the points.
                              Lyle

                              Comment

                              • John N.
                                Very Frequent User
                                • February 1, 1975
                                • 451

                                #30
                                Re: GR70-15 Radials

                                What is a market price range for a set of Firestone Radial 500 GR70-15?
                                Regards

                                Comment

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