Who Has Actually Installed C4 AC Blower On C3?
08-14-2003, 01:27 PM
#1
Team Owner
Thread Starter
Member Since: Dec 1999
Location: Florida
Posts: 26,485
Received 258 Likes
on
172 Posts
2021 C2 of the Year Finalist - Modified
C2 of the Year Finalist - Modified 2020
C2 of Year Finalist (performance mods) 2019
St. Jude Donor 03-'04-'05-'06-'07-'08-'09-10-'11-'12-'13-'14-'15-'16-'17-'18-'19-'20-'21-'22-'23-'24
Who Has Actually Installed C4 AC Blower On C3?
Sure would like to know the details? :confused:
08-14-2003, 02:05 PM
#3
Le Mans Master
Re: Who Has Actually Installed C4 AC Blower On C3? (OHSIXX)
I installed the whole assembly. It's pretty straightforward after you remove enough stuff (AC components, vac hoses, heater hoses) to get room to remove and reinstall. you will need a 3/4" spacer to install between the blower motor flange and the evap case. Also the elect plugs on the blower motor and your wiring harness will not match and you will need to change one to match up.
I think there is a thread in the corvettefaqs on this.
I think there is a thread in the corvettefaqs on this.
08-14-2003, 02:31 PM
#4
Racer
Member Since: Jan 2001
Location: ma
Posts: 495
Likes: 0
Received 0 Likes
on
0 Posts
Re: Who Has Actually Installed C4 AC Blower On C3? (OHSIXX)
I changed mine and used a 3/4 spacer and saw that there still was room between the cage and the fan housing then tried a 5/8 spacer and it did not rub at all.I think that less room between the cage and the housing would result in less air short circuting,and more air to the outlets.
08-14-2003, 11:20 PM
#5
Le Mans Master
Member Since: Mar 2000
Location: Pottsville, PA. USA Home Of America's Oldest Brewery Yuengling
Posts: 9,063
Received 2,239 Likes
on
1,033 Posts
Re: Who Has Actually Installed C4 AC Blower On C3? (rdrman)
Did the C4 motor make a big difference over the C3 motor.
08-14-2003, 11:25 PM
#6
Le Mans Master
Member Since: Aug 2000
Location: Semper ubi, sub ubi
Posts: 9,662
Likes: 0
Received 6 Likes
on
6 Posts
Cruise-In VI Veteran
Cruise-In VII Veteran
Re: Who Has Actually Installed C4 AC Blower On C3? (Corvette ED)
I used a 5/8" spacer also, the difference was only slightly more than the original motor, maybe 15%-20% more air. The real problem is the seals inside the ducts behind the dash. If you can reseal everything the stock blower will put out quite a bit of air.
08-15-2003, 12:32 PM
#7
Le Mans Master
Re: Who Has Actually Installed C4 AC Blower On C3? (OHSIXX)
I looked on the corvettefaq site, but did not see a link. If I understand this correctly you use a spacer between the evaporator box and the blower. Where do you get the spacer? What do you make it from? I sure could use a little more air flow.
08-15-2003, 12:48 PM
#8
Instructor
Member Since: Jul 2003
Location: methuen ma
Posts: 156
Likes: 0
Received 0 Likes
on
0 Posts
Re: Who Has Actually Installed C4 AC Blower On C3? (markdtn)
Im with Smokehouse, I sealed all the duct work while I was restoring the dash... BIG difference in air flow, bought the seal kit from Covette Central and also used some other self adhesive foam backed tape (local hardware store) correct sealing is critical
08-15-2003, 01:46 PM
#9
Team Owner
Member Since: May 2001
Location: Exiled to Richmond, VA - Finally sold my house in Murfreesboro, TN ?? Corner of "Bumf*&k and 'You've got a purdy mouth'."
Posts: 29,745
Likes: 0
Received 2 Likes
on
2 Posts
CI 6-7-8 Veteran
CI-VIII Burnout Champ
St. Jude Donor '06-'10, '13
Re: Who Has Actually Installed C4 AC Blower On C3? (markdtn)
I looked on the corvettefaq site, but did not see a link. If I understand this correctly you use a spacer between the evaporator box and the blower. Where do you get the spacer? What do you make it from? I sure could use a little more air flow.
