Can the NCRS judging manual be wrong?

[Ross F.]

My 75 corvette has the M40 400 turbo hydromatic auto trans and the standard L48 motor.
the manual claims that I shouldn't have an AIR system. But I do!
I have CHB on the block pad and the original emissions sticker AS says AIR, EGR, EFF.
Should they change the book?

[Terry M.]

Re: Can the NCRS judging manual be wrong?

If they should - it will not happen unless you communicate with the appropriate National Team Leader listed either in the Contacts section on the radio button above or on the second page of The Restorer.

[Jim S.]

Re: Can the NCRS judging manual be wrong?

I have a "cheat sheet" from Saginaw Steering Gear (that manufactured the A.I.R. pump.) It says:
"1973-1975, all Corvettes used A.I.R. except for the 1974 L48 with automatic and Federal emissions which use CCS" (Controlled Combustion System).
So from Saginaw information, all 1975 Corvettes had A.I.R.
Jim

[Tom P.]

Re: Can the NCRS judging manual be wrong?

quote: Can the NCRS judging manual be wrong? :quote

You make a joke, right???

[Ross F.]

Re: Can the NCRS judging manual be wrong?

So... I guess they don't give out prizes. But mystery solved! We can say, without reservation, that all 75 corvettes had an AIR pump!

[Michael G.]

Re: Can the NCRS judging manual be wrong?

We can say, without reservation, that all 75 corvettes had an AIR pump!

More accurately stated "all 1975 Corvettes should have A.I.R.". 'Unequivocal' comes to mind when it comes to knowing about all the Corvette.

[Tom R.]

Re: Can the NCRS judging manual be wrong?

My 75 corvette has the M40 400 turbo hydromatic auto trans and the standard L48 motor.
the manual claims that I shouldn't have an AIR system. But I do!

I have CHB on the block pad and the original emissions sticker AS says AIR, EGR, EFF.
Should they change the book?

Ross

Your question is twofold and regarding the technical aspect, that has been answered. But in regard to the larger question posed in your subject...I notice posters have refrained from comment. I hesitated responding but everytime you get a response, and it pops to the top of the discussion board, it piques my curiosity. So, several considerations:

Judging Manuals are technical reference guides that capture a snapshot of what is known at a given point in time. Once that guide is published, it now becomes dated because a restorer, owner or researcher will eventually find something new that has yet to find its way into the process of manual revision which, as TM points out is left to team leaders and their team members.

The 1975 TIMJG (judging manual) is in its 2nd edition and last published 2000. It's now fourteen years old and many others have asked questions not unlike those you've raised here. My point...too often owners believe a configuration they find on their unrestored, original Corvette question its authenticity due to an inconsistency they encounter with a judging manual. That's why owners are encouraged when they have a question...leave it and seek information from a knowledgeable source...as you have. Nicely done!

Finally a case in point is posted in the "stickie" section of this discussion board. You'll note a member (Paul Oslansky) of 1970-72 is researching frame stencil to clarify the point at which the factory changed location of the frame stencil. The frame stencil contains the date the frame was assembled and its part number. So, the point is...here are 40 year Corvettes that we have probably been judged since the 1980s and we have yet to learn everything there is about the St Louis Assembly Plant production process. Paul (doing the research), is working to survey Corvettes with original frame stencils in order to identify the time frame for the breakpoint...no easy task. He seeks the cooperation of owners to provide information. He is engaged in doing original research which takes, time and the cooperation of numerous member owners with typical frame markings; do the analysis and than come to some reasonable conclusion without the benefit of viewing all 26,000 Corvettes built in that particular timeframe.

So you see your question is somewhat loaded. I hope this offers some insights into both the purpose of those judging manuals but also that indeed...they are not perfect and require the constant attention by those members who take the time to read, comprehend and document their inconsistencies.

[Steven B.]

Re: Can the NCRS judging manual be wrong?

Ross, Terry and Tom have very good points we all encounter with our various years. Follow their lead. Specifically, can the judging manual be wrong. No---if it is in print or on the internet it has to be true. Seriously, if you have the opportunity compare iterations of the same MY manuals and you will see the evolution of the "Guides". Pursue it with the Team Leader and Team. You may have discovered some valuable info. Steve

[Terry M.]

Re: Can the NCRS judging manual be wrong?

Ross

Your question is twofold and regarding the technical aspect, that has been answered. But in regard to the larger question posed in your subject...I notice posters have refrained from comment. I hesitated responding but everytime you get a response, and it pops to the top of the discussion board, it piques my curiosity. So, several considerations:

Judging Manuals are technical reference guides that capture a snapshot of what is known at a given point in time. Once that guide is published, it now becomes dated because a restorer, owner or researcher will eventually find something new that has yet to find its way into the process of manual revision which, as TM points out is left to team leaders and their team members.

The 1975 TIMJG (judging manual) is in its 2nd edition and last published 2000. It's now fourteen years old and many others have asked questions not unlike those you've raised here. My point...too often owners believe a configuration they find on their unrestored, original Corvette question its authenticity due to an inconsistency they encounter with a judging manual. That's why owners are encouraged when they have a question...leave it and seek information from a knowledgeable source...as you have. Nicely done!

Finally a case in point is posted in the "stickie" section of this discussion board. You'll note a member (Paul Oslansky) of 1970-72 is researching frame stencil to clarify the point at which the factory changed location of the frame stencil. The frame stencil contains the date the frame was assembled and its part number. So, the point is...here are 40 year Corvettes that we have probably been judged since the 1980s and we have yet to learn everything there is about the St Louis Assembly Plant production process. Paul (doing the research), is working to survey Corvettes with original frame stencils in order to identify the time frame for the breakpoint...no easy task. He seeks the cooperation of owners to provide information. He is engaged in doing original research which takes, time and the cooperation of numerous member owners with typical frame markings; do the analysis and than come to some reasonable conclusion without the benefit of viewing all 26,000 Corvettes built in that particular timeframe.

So you see your question is somewhat loaded. I hope this offers some insights into both the purpose of those judging manuals but also that indeed...they are not perfect and require the constant attention by those members who take the time to read, comprehend and document their inconsistencies.

Thank you Tom. just two points of refinement:
A) 1968 to 1972 Corvettes began being judged in 1985. Sorry I don't remember when we began to judge 1975s, but I know it was somewhat later than that.
B) The 1970-1972 TIM&JG that is available is on its 4th edition, and the revision team is working on the 5th edition.

[Terry M.]

Re: Can the NCRS judging manual be wrong?

Ross, Terry and Tom have very good points we all encounter with our various years. Follow their lead. Specifically, can the judging manual be wrong. No---if it is in print or on the internet it has to be true. Seriously, if you have the opportunity compare iterations of the same MY manuals and you will see the evolution of the "Guides". Pursue it with the Team Leader and Team. You may have discovered some valuable info. Steve

Bonjour!