72 NCRS correct oil filter
Racer
Joined: Sep 2011
Posts: 381
Likes: 90
From: Portland, the original!
they wouldn't be trying so hard.
I'm a driver guy which is why my car will be driven as found save maintenance/safety items despite being worth a fair bit more if a driving restoration was undertaken.
I see this alot with my Porsche car friends. Detailing and concourse prep takes on a life of its own at shows and gathering that is a total mystery to me. None other than
Ferdinand Porsche and other family members have commented that they don't understand this behavior, seemingly mostly exhibited by their US based owners, as the cars were meant to be driven and not preserved.
That said some revel in the search, the acquisition, the driving, or the restoration, all enjoying the hobby. That said, with the time I spend trying to keep my buggies road worthy versus actually
driving them as I purport to really enjoy, some might think I also have the priorities out of whack.
Talking about out of whack, sweet strut rods getting replaced.
Melting Slicks
Joined: May 2002
Posts: 2,476
Likes: 756
From: Laporte, IN
Just some more information the NCRS does encourage cars being driven. For owners of the Corvette that is on the edge of receiving a Top Flight, 2nd Flight or 3rd. Depending on the miles driven so someone who does not wish to spend excessive funds on parts. Can calculate by driven miles to an event to gain the Award he is looking for. Here is how that works.
2. DRIVEN MILEAGE POINTS Since NCRS encourages driving, any car entered in Flight Judging driven by the owner or a family member to an event is eligible to receive additional points based on miles driven to the event so long as the car receives a minimum 75.0 net score. Mileage points are limited to 10% of net scoring. Points are calculated using the actual mileage driven to the event as reported on the Judging Summary sheet by the owner. This mileage is multiplied by 1% (.01). Using this number and not rounding up figures beyond the tenths place are dropped and the result is added to the net score to arrive at the final Grand Total Score,Grand Total cannot exceed 100. For example,a car driven 37 miles to an event would have.3 added;while a car driven 375 miles would have 3.7 points added. S
2. DRIVEN MILEAGE POINTS Since NCRS encourages driving, any car entered in Flight Judging driven by the owner or a family member to an event is eligible to receive additional points based on miles driven to the event so long as the car receives a minimum 75.0 net score. Mileage points are limited to 10% of net scoring. Points are calculated using the actual mileage driven to the event as reported on the Judging Summary sheet by the owner. This mileage is multiplied by 1% (.01). Using this number and not rounding up figures beyond the tenths place are dropped and the result is added to the net score to arrive at the final Grand Total Score,Grand Total cannot exceed 100. For example,a car driven 37 miles to an event would have.3 added;while a car driven 375 miles would have 3.7 points added. S
Last edited by PJO; May 3, 2022 at 12:09 PM.
Instructor
Joined: Mar 2006
Posts: 179
Likes: 6
From: Saint Louis MO
Fair point Tom, I do not know if the article is accurate. However it discuses the exact engineering change documents described in the 75-77 page you posted.
I find it odd that the 73-74 team would not have access to the information that was published in 2006 in the NCRS Restorer. I made an assumption that the teams would review all such information, my mistake.
I'll send you the article. Not sure if it is ok to post a copyrighted article here ??
I thought more about it later. I can sum it up like this. In the 75-77 guide there is an allowed changed over period when a change is introduced (Foil to Paper label) where-in either or would be acceptable. There is no such period in the 73-74 manual. There is a hard cutoff, the 74 has a white filter (according to the guide). Then the 75 has a blue. I would expect a changeover period, either late 74 or into early 75.
I find it odd that the 73-74 team would not have access to the information that was published in 2006 in the NCRS Restorer. I made an assumption that the teams would review all such information, my mistake.
I'll send you the article. Not sure if it is ok to post a copyrighted article here ??
I thought more about it later. I can sum it up like this. In the 75-77 guide there is an allowed changed over period when a change is introduced (Foil to Paper label) where-in either or would be acceptable. There is no such period in the 73-74 manual. There is a hard cutoff, the 74 has a white filter (according to the guide). Then the 75 has a blue. I would expect a changeover period, either late 74 or into early 75.
Le Mans Master
Joined: Sep 2002
Posts: 5,236
Likes: 898
From: Myrtle Beach SC
I thought more about it later. I can sum it up like this. In the 75-77 guide there is an allowed changed over period when a change is introduced (Foil to Paper label) where-in either or would be acceptable. There is no such period in the 73-74 manual. There is a hard cutoff, the 74 has a white filter (according to the guide). Then the 75 has a blue. I would expect a changeover period, either late 74 or into early 75.
Le Mans Master
Joined: Sep 2002
Posts: 5,236
Likes: 898
From: Myrtle Beach SC
Thanks T for sharing the article. I'll summarize what I wrote to explain the process a revision team goes through to draw a conclusion on how best to frame technical information and judging guidance. The bottom line is that owners and judges want absolute change dates...the reality is that few exist and most change over dates are informed guesswork...or fabricated!
I've had many conversations with the author about filters, both air and oil filters during the early 1970 period. His work is based on AC Delco engineering drawings and the date of those published drawings. But the question remains, and the author speaks to this, "when did filter production begin, and at what point did those changes find their way into filter production and then to Corvette assembly. He wrote:
AC Delco Engineering Change Date - February 19, 1974 - finish change to blue paint with foil label
I've had many conversations with the author about filters, both air and oil filters during the early 1970 period. His work is based on AC Delco engineering drawings and the date of those published drawings. But the question remains, and the author speaks to this, "when did filter production begin, and at what point did those changes find their way into filter production and then to Corvette assembly. He wrote:
AC Delco Engineering Change Date - February 19, 1974 - finish change to blue paint with foil label
The actual date when the change became effective can be influenced by
- the time required to implement the change,
- the amount of prior design material in the pipeline, and
- the change approval date, if required by the Chevrolet engineers.
For these reasons, engineering change data must be linked with other information before a reasonably accurate judgment can be made.
Thus, six months exist between the drawing change date and the end of 1974 production. Remember, this is the 1970s and just-in-time supply chains were yet to find their way into the automotive assembly process. So...what date to use to guide 1974 owners to install on their 1974 Corvette? Stick with white or change to blue...see how arbitrary date selection becomes? And these are judging guidelines that come some five decades later. A revision team must take all this into consideration to provide reasonable guidance. The bottom line...there are no absolutes here!
