Blower upgrade templet

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Nov 28, 2009 | 10:32 PM

71coupe454

Thread Starter

Burning Brakes

Joined: Jan 2009

Posts: 1,224

Likes: 1

From: Clarksville Indiana

Blower upgrade templet

Anybody thats going to change thier blower to a c4 blower, here is a templet for the spacer thats needed. If you print it out, make sure the center hole is 5-3/4" and it will fit perfect.

Nov 29, 2009 | 08:50 PM

929nitro

Melting Slicks

Joined: Feb 2007

Posts: 2,136

Likes: 62

From: West Kingston RI

Is there a certain thickness this has to be? Any other changes needed? Thanks.

Nov 29, 2009 | 09:08 PM

'75

Le Mans Master

Joined: Dec 2007

Posts: 6,422

Likes: 591

From: McHenry Illinois

Here is one I saved from another site with the measurements on it.

Nov 29, 2009 | 10:49 PM

79 vette head

Burning Brakes

Joined: Sep 2005

Posts: 1,198

Likes: 0

From: staten island new york

St. Jude Donor '10

Quote:

Originally Posted by 929nitro

Is there a certain thickness this has to be? Any other changes needed? Thanks.

im going to start doing mine. from what i've seen and been told about one inch should do it

Nov 30, 2009 | 09:47 AM

Aggitated Monkey

Drifting

Joined: Sep 2007

Posts: 1,572

Likes: 51

From: Wichita Kansas

I just installed a blower in mine. Did know about the C4 blower. What does the C4 blower do for us?

Nov 30, 2009 | 02:52 PM

7T1vette

Team Owner

Joined: Jan 2006

Posts: 37,637

Likes: 3,117

From: Crossville TN

It has a better fan design and more airflow (or so we're told).

Nov 30, 2009 | 03:01 PM

FRSTR90

Drifting

Joined: Apr 2007

Posts: 1,892

Likes: 3

From: Springfield Illinois

Please let us know if you see a huge advantage over the stock blower motor.

Nov 30, 2009 | 04:56 PM

RunningMan373

Melting Slicks

Joined: May 2007

Posts: 3,246

Likes: 4

From: Bay Area CA

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Dec 1, 2009 | 10:57 PM

71coupe454

Thread Starter

Burning Brakes

Joined: Jan 2009

Posts: 1,224

Likes: 1

From: Clarksville Indiana

I think 3/4 is going to do it from what I eyeballed... got sidetracked with a few other things last several days. From what forum members have said, the longer blower fan moves more air. I dont know if the motor is any different or not. My blades were cracked up some so I thought I'd give it a try and see.

Dec 1, 2009 | 11:40 PM

#10

chvet73

Pro

Joined: Jul 2004

Posts: 605

Likes: 0

From: Alta Loma CA

Mibe is 3/4" and works fine. The closer to the bottom the fan is the more airflow. I made mine from black ABS 3/4" plastic I got from McMasterCarr. Don't even have to paint it.

Dec 2, 2009 | 10:08 PM

#11

Aggitated Monkey

Drifting

Joined: Sep 2007

Posts: 1,572

Likes: 51

From: Wichita Kansas

Quote:

Originally Posted by 7T1vette

It has a better fan design and more airflow (or so we're told).

Does anyone have a comparision photo of the C3 and C4 fans? My new motor from Advance Auto fit perfect, however it came with a white plastic or nylon fan that appeared to be an inch wider. I reinstalled my old fan on the new motor. I do not get the high speed when high is selected. When high is selected it goes to low speed.

Dec 2, 2009 | 10:57 PM

#12

71coupe454

Thread Starter

Burning Brakes

Joined: Jan 2009

Posts: 1,224

Likes: 1

From: Clarksville Indiana

I can look again tomorrow but I think it was just longer than my original but I'll take a pic and post it, its all laying out on my workbench.

Dec 3, 2009 | 12:59 PM

#13

Maco Shark

Burning Brakes

Joined: Oct 2001

Posts: 896

Likes: 1

From: Thomasville, home of the Big Chair NC

Quote:

Originally Posted by FatCat Red 25th

I do not get the high speed when high is selected. When high is selected it goes to low speed.

That is probably your "high speed relay" malfunctioning.
Its an easy fix.

Dec 4, 2009 | 11:27 PM

#14

C3-76

Intermediate

Joined: Nov 2009

Posts: 25

Likes: 0

From: Somerville Alabama

When you complete the project please post a follow up. I am having low air flow issues from a 76 and would like to know if this helps.

Dec 11, 2009 | 10:32 PM

#15

UHF

Advanced

Joined: Nov 2009

Posts: 84

Likes: 1

Any results to post?

Dec 11, 2009 | 10:46 PM

#16

UHF

Advanced

Joined: Nov 2009

Posts: 84

Likes: 1

Any results to post?

Dec 12, 2009 | 12:30 AM

#17

71coupe454

Thread Starter

Burning Brakes

Joined: Jan 2009

Posts: 1,224

Likes: 1

From: Clarksville Indiana

Well I for one, have got no where.. I got side tracked with carb. issues, ended up buying a new Holley, got that on and burned up my points in the process because I have the ignition wired direct to a battery so I can run it on a stand. So my dash and heat/ac systems are all still in a thousand pieces all over my work bench.

Dec 12, 2009 | 01:03 AM

#18

79 vette head

Burning Brakes

Joined: Sep 2005

Posts: 1,198

Likes: 0

From: staten island new york

St. Jude Donor '10

cant seem to find any time right now. might have to wait untill i get the car back from paint shop. not that i want to do this job after getting the car painted but i might have to...

Dec 12, 2009 | 09:14 AM

#19

HOOAH

1969/1971/2021 Coupes

Joined: Jan 2008

Posts: 2,212

Likes: 80

From: Port Huron MI

St. Jude Donor '09-'10-'11-'12-'13-'14-'15

Quote:

Originally Posted by FRSTR90

Please let us know if you see a huge advantage over the stock blower motor.

Same here. The blower motor was weak before I dissassembled the car and this is still on the "to get" list. If the C4 proves to be better, I'll go that route.

Terry

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