C1 & C2 Corvettes General C1 Corvette & C2 Corvette Discussion, Technical Info, Performance Upgrades, Project Builds, Restorations
Sponsored by:
Sponsored by:

Ventilation outlet behind coupe doors; functional?

 
Old 09-17-2018, 11:45 PM
  #1  
mxw1
CF Senior Member
Thread Starter
 
Member Since: Dec 2003
Location: Santa Maria Ca.
Posts: 227
Likes: 0
Liked 7 Times in 4 Posts
Default 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

Last edited by mxw1; 09-17-2018 at 11:47 PM.
mxw1 is offline  
Old 09-18-2018, 12:48 AM
  #2  
68hemi
CF Senior Member
 
68hemi's Avatar
 
Member Since: Nov 2003
Location: Cottonwood AZ
Posts: 4,172
Liked 530 Times in 419 Posts
Default

Originally Posted by mxw1 View Post
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

ONLY on a 1965 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..

68hemi is online now  
Old 09-18-2018, 12:56 AM
  #3  
wmf62
CF Senior Member
 
wmf62's Avatar
 
Member Since: Jun 2006
Location: Inverness FL
Posts: 17,891
Liked 681 Times in 582 Posts
St. Jude Donor '07
Default

…. and not worth crap.....
Bill
wmf62 is offline  
Old 09-18-2018, 03:43 AM
  #4  
ghostrider20
CF Senior Member
 
ghostrider20's Avatar
 
Member Since: Jan 2002
Location: Sioux Falls South Dakota
Posts: 3,385
Liked 78 Times in 64 Posts
Default

With the windows up and the kick vents open, it works well to move more air.
ghostrider20 is offline  
Old 09-18-2018, 05:28 AM
  #5  
65GGvert
CF Senior Member
 
65GGvert's Avatar
 
Member Since: Jul 2006
Location: Kannapolis NC
Posts: 15,741
Liked 1,117 Times in 982 Posts
Default

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.

Last edited by 65GGvert; 09-18-2018 at 05:51 AM.
65GGvert is online now  
Old 09-18-2018, 05:53 AM
  #6  
wmf62
CF Senior Member
 
wmf62's Avatar
 
Member Since: Jun 2006
Location: Inverness FL
Posts: 17,891
Liked 681 Times in 582 Posts
St. Jude Donor '07
Default

Originally Posted by 65GGvert View Post
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.
yep, pretty cool; so cool that they deleted it in 66/67
Bill
wmf62 is offline  
Old 09-18-2018, 06:05 AM
  #7  
65hihp
CF Senior Member
 
65hihp's Avatar
 
Member Since: Mar 2009
Location: Mechanicsville VA
Posts: 4,643
Liked 825 Times in 578 Posts
Default

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.
65hihp is offline  
Old 09-18-2018, 06:22 AM
  #8  
wmf62
CF Senior Member
 
wmf62's Avatar
 
Member Since: Jun 2006
Location: Inverness FL
Posts: 17,891
Liked 681 Times in 582 Posts
St. Jude Donor '07
Default

Originally Posted by 65hihp View Post
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.
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
wmf62 is offline  
Old 09-18-2018, 07:08 AM
  #9  
65hihp
CF Senior Member
 
65hihp's Avatar
 
Member Since: Mar 2009
Location: Mechanicsville VA
Posts: 4,643
Liked 825 Times in 578 Posts
Default

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.
65hihp is offline  
Old 09-18-2018, 07:33 AM
  #10  
65GGvert
CF Senior Member
 
65GGvert's Avatar
 
Member Since: Jul 2006
Location: Kannapolis NC
Posts: 15,741
Liked 1,117 Times in 982 Posts
Default

Originally Posted by wmf62 View Post
yep, pretty cool; so cool that they deleted it in 66/67
Bill
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.
65GGvert is online now  
Old 09-18-2018, 07:51 AM
  #11  
65hihp
CF Senior Member
 
65hihp's Avatar
 
Member Since: Mar 2009
Location: Mechanicsville VA
Posts: 4,643
Liked 825 Times in 578 Posts
Default

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.
65hihp is offline  
Old 09-18-2018, 08:29 AM
  #12  
1snake
CF Senior Member
 
1snake's Avatar
 
Member Since: Dec 2007
Location: Puget Sound
Posts: 7,647
Liked 339 Times in 278 Posts
Default

Originally Posted by 65hihp View Post
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.
I've owned both a 64 and a 65 coupe and that exhaust system works VERY well. I had a buddy who said the fan on his 65 was basically useless. The intake portion was missing the screen and had become partially blocked. Once cleared, he was impressed with how well it worked.
1snake is offline  
Old 09-18-2018, 08:29 AM
  #13  
MikeM
CF Senior Member
 
Member Since: Mar 2003
Location: Greenville, Indiana
Posts: 22,608
Liked 854 Times in 724 Posts
Default

Originally Posted by wmf62 View Post
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
I basically agree. When you're underway, the kick panel vents will push in more air than that dinky B pillar fan will pull out on it's own. But, in slow moving traffic, it might have some small benefit but not enough to justify it's existence/cost because of it's ineffectiveness in removing heat/air. But yes, it helped a little in slow moving traffic.

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.
MikeM is online now  
Old 09-18-2018, 10:59 AM
  #14  
68hemi
CF Senior Member
 
68hemi's Avatar
 
Member Since: Nov 2003
Location: Cottonwood AZ
Posts: 4,172
Liked 530 Times in 419 Posts
Default

Well, I learned something today. I was not aware that 64 have that feature as well as 65. o
68hemi is online now  
Old 09-18-2018, 12:02 PM
  #15  
cblankin
CF Senior Member
 
Member Since: Jun 2015
Posts: 237
Liked 23 Times in 23 Posts
Default

I believe 64 and 65 Tankers did not have the blower.
cblankin is offline  
Old 09-18-2018, 01:29 PM
  #16  
mxw1
CF Senior Member
Thread Starter
 
Member Since: Dec 2003
Location: Santa Maria Ca.
Posts: 227
Likes: 0
Liked 7 Times in 4 Posts
Default Thanks for your reply

Originally Posted by mxw1 View Post
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
Thanks everyone for your rapid response. I'm impressed with the number of replies to my questions in less than 24 hours.


Mike

mxw1 is offline  
Old 09-18-2018, 02:09 PM
  #17  
toddalin
CF Senior Member
 
Member Since: Oct 2000
Location: Santa Ana CA
Posts: 7,551
Liked 119 Times in 84 Posts
Default

Originally Posted by 68hemi View Post
ONLY on a 1965 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..
No..., both on '64s and '65s, and yes..., only on the drivers side.

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.
toddalin is offline  
Old 09-18-2018, 02:14 PM
  #18  
65hihp
CF Senior Member
 
65hihp's Avatar
 
Member Since: Mar 2009
Location: Mechanicsville VA
Posts: 4,643
Liked 825 Times in 578 Posts
Default

better late than never I guess.
65hihp is offline  
Old 09-18-2018, 02:27 PM
  #19  
vettsplit 63
CF Senior Member
 
vettsplit 63's Avatar
 
Member Since: Sep 2009
Location: Power tripping Sociopath- has a nice ring to it- I used to be a people person, but people ruined it Texas
Posts: 5,938
Liked 93 Times in 84 Posts
St. Jude Donor '12
Default

Originally Posted by wmf62 View Post
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, could it be that the supercool 63 split windows were an engineering exercise to cut down on the greenhouse effect? Two small windows rather than 1 huge one.... Hmmmmmm.......
vettsplit 63 is offline  
The following users liked this post: vettsplit 63
mjdart (04-08-2019)
Old 09-18-2018, 03:07 PM
  #20  
Vettrocious
CF Senior Member
Support Corvetteforum!
 
Vettrocious's Avatar
 
Member Since: Sep 2009
Location: Glen Arbor MI
Posts: 1,790
Liked 197 Times in 156 Posts
2017 C2 of Year Finalist
Default

Originally Posted by vettsplit 63 View Post
Bill, could it be that the supercool 63 split windows were an engineering exercise to cut down on the greenhouse effect? Two small windows rather than 1 huge one.... Hmmmmmm.......
Well, as Al Gore said, you know that the greenhouse effect is caused by excess CO2, and people exhale that gas, so venting the cockpit air with the vent fan was clearly intended to alleviate the trapping of the suns rays near the drivers face by all the CO2 around him. That is obviously why the 64 and 65 coupes are so highly valued by Prius owners and other environmental experts...

Oh, sorry, I got carried away...
Vettrocious is offline  
The following 3 users liked this post by Vettrocious:
C.T. (04-15-2019), mjdart (04-08-2019), SWCDuke (09-18-2018)

Thread Tools
Search this Thread
Quick Reply: Ventilation outlet behind coupe doors; functional?


Sponsored Ads
Vendor Directory

Contact Us - About Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: