Ventilation outlet behind coupe doors; functional?
#1
Instructor
Thread Starter
Ventilation outlet behind coupe doors; functional?
Hi,
I have a C-1, C5 and C-7 Corvette, was at a Corvette car show last weekend and the subject came up about the ventilation exhaust vents behind the doors on a C-2 Corvette.
Some say that they were only on 63-65 C-2s, then eliminated for 66 and 67. Some had said that only 1963 were functional, then blocked off for later years. Some say the opposite. Some say that they were only functional if you didn't have air conditioning.(63-65 ). Some say that there was even a ventilation fan and duct work to boost efficiency.
Can anybody set the record straight? Please.
Thanks,
Mike
I have a C-1, C5 and C-7 Corvette, was at a Corvette car show last weekend and the subject came up about the ventilation exhaust vents behind the doors on a C-2 Corvette.
Some say that they were only on 63-65 C-2s, then eliminated for 66 and 67. Some had said that only 1963 were functional, then blocked off for later years. Some say the opposite. Some say that they were only functional if you didn't have air conditioning.(63-65 ). Some say that there was even a ventilation fan and duct work to boost efficiency.
Can anybody set the record straight? Please.
Thanks,
Mike
Last edited by mxw1; 09-17-2018 at 11:47 PM.
#2
Race Director
Member Since: Nov 2003
Location: Cottonwood AZ
Posts: 10,698
Received 3,048 Likes
on
1,934 Posts
C1 of Year Finalist (performance mods) 2019
Hi,
I have a C-1, C5 and C-7 Corvette, was at a Corvette car show last weekend and the subject came up about the ventilation exhaust vents behind the doors on a C-2 Corvette.
Some say that they were only on 63-65 C-2s, then eliminated for 66 and 67. Some had said that only 1963 were functional, then blocked off for later years. Some say the opposite. Some say that they were only functional if you didn't have air conditioning.(63-65 ). Some say that there was even a ventilation fan and duct work to boost efficiency.
Can anybody set the record straight? Please.
Thanks,
Mike
I have a C-1, C5 and C-7 Corvette, was at a Corvette car show last weekend and the subject came up about the ventilation exhaust vents behind the doors on a C-2 Corvette.
Some say that they were only on 63-65 C-2s, then eliminated for 66 and 67. Some had said that only 1963 were functional, then blocked off for later years. Some say the opposite. Some say that they were only functional if you didn't have air conditioning.(63-65 ). Some say that there was even a ventilation fan and duct work to boost efficiency.
Can anybody set the record straight? Please.
Thanks,
Mike
ONLY on 64 & 65s and ONLY on the driver's side. It does have a fan back by the vent and it is controlled by a vent pull next to the vent pull for the front driver's side pull..
Last edited by 68hemi; 06-09-2021 at 08:51 PM.
#5
Team Owner
Looks like you're going to get some conflicting information here, too. Both the 64 and the 65 had functional roof vents on the driver's side. They operate ONLY with the heater fan in the off position and the cable under the dash pulled to one of the three speed positions, low, med, high speed. They are tthe same on both a/c and non a/c cars.
They pull some air and I used mine back in the old days in the winter with windows up when I had a smoker in the car. I no longer have smokers in my car, so the vent doesn't have as much value. If you open the kick panel vents and turn on the rear fan it allow more air to flow than with the windows up. Might be good in a situation where you want windows all the way up (rain, wind noise, etc). I always thought it was a pretty cool gadget, but use the vent windows more than I use the roof vent.
They pull some air and I used mine back in the old days in the winter with windows up when I had a smoker in the car. I no longer have smokers in my car, so the vent doesn't have as much value. If you open the kick panel vents and turn on the rear fan it allow more air to flow than with the windows up. Might be good in a situation where you want windows all the way up (rain, wind noise, etc). I always thought it was a pretty cool gadget, but use the vent windows more than I use the roof vent.
Last edited by 65GGvert; 09-18-2018 at 05:51 AM.
The following 2 users liked this post by 65GGvert:
1960 (07-26-2021),
59BlueSilver (06-09-2021)
#6
Race Director
Member Since: Jun 2006
Location: Inverness FL
Posts: 17,891
Received 727 Likes
on
621 Posts
St. Jude Donor '07
Looks like you're going to get some conflicting information here, too. Both the 64 and the 65 had functional roof vents on the driver's side. They operate ONLY with the heater fan in the off position and the cable under the dash pulled to one of the three speed positions, low, med, high speed. They are tthe same on both a/c and non a/c cars.
They pull some air and I used mine back in the old days in the winter with windows up when I had a smoker in the car. I no longer have smokers in my car, so the vent doesn't have as much value. If you open the kick panel vents and turn on the rear fan it allow more air to flow than with the windows up. Might be good in a situation where you want windows all the way up (rain, wind noise, etc). I always thought it was a pretty cool gadget, but use the vent windows more than I use the roof vent.
They pull some air and I used mine back in the old days in the winter with windows up when I had a smoker in the car. I no longer have smokers in my car, so the vent doesn't have as much value. If you open the kick panel vents and turn on the rear fan it allow more air to flow than with the windows up. Might be good in a situation where you want windows all the way up (rain, wind noise, etc). I always thought it was a pretty cool gadget, but use the vent windows more than I use the roof vent.
Bill
The following users liked this post:
1960 (07-26-2021)
#7
Le Mans Master
One of the best things about my 64 coupe. Very effective in moving heat out of the cabin. Those 66-67 rat motor coupes really could have benefitted from having the cabin vent system.
The following users liked this post:
vettefred (06-09-2021)
#8
Race Director
Member Since: Jun 2006
Location: Inverness FL
Posts: 17,891
Received 727 Likes
on
621 Posts
St. Jude Donor '07
Bill
#9
Le Mans Master
different people have different tolerance for heat discomfort. I didn't say the cabin vent works like air conditioning. My 64 coupe is not miserable in the heat. Upper or lower case.
For all I know your cabin fan system in your two 65s may have been broken. What I do know is, my cabin vent system works great at pulling hot air out of my coupe. The fan came standard on 4 and 5 coupes. AC was an option. You get what you pay for. The cabin fan if functional as designed is better than nothing, and in my experience much better.
For all I know your cabin fan system in your two 65s may have been broken. What I do know is, my cabin vent system works great at pulling hot air out of my coupe. The fan came standard on 4 and 5 coupes. AC was an option. You get what you pay for. The cabin fan if functional as designed is better than nothing, and in my experience much better.
#10
Team Owner
You don't suppose that the decreased cost in building the roof panel and installing the fan and controls had anything to do with it? Neither the fact that you don't like it, nor that they discontinued it makes it less functional.
The following 2 users liked this post by 65GGvert:
59BlueSilver (06-09-2021),
vettefred (06-09-2021)
#11
Le Mans Master
Precisely. My contention is that after 1964 Chevy went on a cost cutting crusade in production of the Corvette. Lots of details disappeared or were diminished in size or quality.
The cabin vent system was a brilliant feature that did not survive the budget cutting pencil pushers.
The cabin vent system was a brilliant feature that did not survive the budget cutting pencil pushers.
The following 2 users liked this post by 65hihp:
59BlueSilver (06-09-2021),
vettefred (06-09-2021)
#12
Le Mans Master
different people have different tolerance for heat discomfort. I didn't say the cabin vent works like air conditioning. My 64 coupe is not miserable in the heat. Upper or lower case.
For all I know your cabin fan system in your two 65s may have been broken. What I do know is, my cabin vent system works great at pulling hot air out of my coupe. The fan came standard on 4 and 5 coupes. AC was an option. You get what you pay for. The cabin fan if functional as designed is better than nothing, and in my experience much better.
For all I know your cabin fan system in your two 65s may have been broken. What I do know is, my cabin vent system works great at pulling hot air out of my coupe. The fan came standard on 4 and 5 coupes. AC was an option. You get what you pay for. The cabin fan if functional as designed is better than nothing, and in my experience much better.
#13
Team Owner
Member Since: Mar 2003
Location: Greenville, Indiana
Posts: 26,118
Received 1,843 Likes
on
1,398 Posts
not trying to be a smart azz, but having owned 2 65 coupes, that little exhaust fan may get cigarette smoke out but the ONLY thing that will get the heat out to a comfortable level is a/c... coupes are MISERABLE in the heat without it. the huge rear window provides a greenhouse effect (FWIW, C1s with a hardtop have the same problem due to the large window area)
Bill
Bill
I used to smoke (long time ago) and best I remember, it was pretty lame about getting cigarette smoke out of the cabin. And yes, my system worked as designed both mechanically and electrically.
Seems like I remember that system being advertised as "draft free" ventialtion meaning no noise or wind blowing from a door window being cracked open.
I haven't used mine is years. I see people wanting to buy replacement cables to open/close that vent. They seem to be wanting to fix a cable that is stuck and won't move. Is it because the cable in their car is worn out from use or is it becase it is stuck from non-use? I tend to think it is the latter. Or how about the cars that had that almost useless vent filled in because some didn't like the looks of it and knew it didn't do much anyway?
Last edited by MikeM; 09-18-2018 at 08:31 AM.
#14
Race Director
Member Since: Nov 2003
Location: Cottonwood AZ
Posts: 10,698
Received 3,048 Likes
on
1,934 Posts
C1 of Year Finalist (performance mods) 2019
Well, I learned something today. I was not aware that 64 have that feature as well as 65. o
#16
Instructor
Thread Starter
Thanks for your reply
Hi,
I have a C-1, C5 and C-7 Corvette, was at a Corvette car show last weekend and the subject came up about the ventilation exhaust vents behind the doors on a C-2 Corvette.
Some say that they were only on 63-65 C-2s, then eliminated for 66 and 67. Some had said that only 1963 were functional, then blocked off for later years. Some say the opposite. Some say that they were only functional if you didn't have air conditioning.(63-65 ). Some say that there was even a ventilation fan and duct work to boost efficiency.
Can anybody set the record straight? Please.
Thanks,
Mike
I have a C-1, C5 and C-7 Corvette, was at a Corvette car show last weekend and the subject came up about the ventilation exhaust vents behind the doors on a C-2 Corvette.
Some say that they were only on 63-65 C-2s, then eliminated for 66 and 67. Some had said that only 1963 were functional, then blocked off for later years. Some say the opposite. Some say that they were only functional if you didn't have air conditioning.(63-65 ). Some say that there was even a ventilation fan and duct work to boost efficiency.
Can anybody set the record straight? Please.
Thanks,
Mike
Mike
#17
Le Mans Master
Not very functional. Mine was wired (from factory?) such that the vent was on..., or the heater fan was on. I put a toggle switch on the vent motor such that I could turn them both off.
Last edited by toddalin; 09-18-2018 at 02:29 PM.
The following users liked this post:
1960 (07-26-2021)
#18
Le Mans Master
better late than never I guess.
#19
Le Mans Master
Member Since: Sep 2009
Location: "You may all go to Hell- and I will go to Texas- Davy Crockett
Posts: 9,151
Received 474 Likes
on
337 Posts
St. Jude Donor '12
not trying to be a smart azz, but having owned 2 65 coupes, that little exhaust fan may get cigarette smoke out but the ONLY thing that will get the heat out to a comfortable level is a/c... coupes are MISERABLE in the heat without it. the huge rear window provides a greenhouse effect (FWIW, C1s with a hardtop have the same problem due to the large window area)
Bill
Bill
The following users liked this post:
mjdart (04-08-2019)
#20
Melting Slicks
Member Since: Sep 2009
Location: MI
Posts: 3,111
Received 1,119 Likes
on
575 Posts
2023 C2 of the Year Finalist - Unmodified
2022 C2 of the Year Finalist - Unmodified
2017 C2 of Year Finalist
Oh, sorry, I got carried away...