Classic Engine Tech 1967 - 1981 Engine Related

1981 z28 air induction

Thread Tools
 
Search this Thread
 
Old 03-17-2003, 08:44 AM
  #1  
Registered User
Thread Starter
 
J-Roc1981/1997's Avatar
 
Join Date: Mar 2003
Posts: 6
Question 1981 z28 air induction

How does the air induction on the hood work? I bought a 1981 camaro z28 and the air induction does not work. I have 2 wires hanging down one orange and one black. Where do the wires go? The shop manual doesn't have it in it. Any leads would help.
J-Roc1981/1997 is offline  
Old 03-17-2003, 09:53 AM
  #2  
Registered User
 
11secgen's Avatar
 
Join Date: Feb 2003
Location: houston
Posts: 321
cowl hood

the orange wire goes to a throttle switch on the carb,and the black goes to ground.if you mare missing this switch you can use one that is supposed to be used to accuate nitrous at w.o.t.(wide open throttle)you can easily modify this switch to open at 3/4 throttle.look in the nitrous section of summits catalog.
11secgen is offline  
Old 03-17-2003, 12:06 PM
  #3  
Registered User
Thread Starter
 
J-Roc1981/1997's Avatar
 
Join Date: Mar 2003
Posts: 6
where does the switch go on the carb?
J-Roc1981/1997 is offline  
Old 03-17-2003, 01:30 PM
  #4  
Registered User
Thread Starter
 
J-Roc1981/1997's Avatar
 
Join Date: Mar 2003
Posts: 6
will part #NOS-15640 work? Thanks for your help.
J-Roc1981/1997 is offline  
Old 03-17-2003, 01:35 PM
  #5  
Classic Tech Moderator
 
Erik's Avatar
 
Join Date: Apr 1999
Location: Burnaby, BC
Posts: 471
On my car, the wires go to a switch under the gas pedal - when it's floored, you hit the switch.

Maybe it's different between 80 and 81?
Erik is offline  
Old 03-17-2003, 03:48 PM
  #6  
Registered User
 
Dirt Reynolds's Avatar
 
Join Date: Jan 2003
Location: Surrey, BC
Posts: 398
You are right, Eric. The air induction door is activated by a solenoid, which gets its signal from a switch on the gas pedal arm. When you floor it, the switch grounds and the solenoid opens the air induction door. Its the same for both 1980 and '81. I've had 2 1980 Z/28's and they both had the same system as my buddy's 1981 Z/28 (which he bought brand new in 1981 and still owns).

Dave
Dirt Reynolds is offline  
Old 03-17-2003, 03:53 PM
  #7  
Registered User
Thread Starter
 
J-Roc1981/1997's Avatar
 
Join Date: Mar 2003
Posts: 6
So where do the wires go to on the soleniod? Can you still buy these soleniods? and if so where? Will the nitrous switch work? thanks for the info!
J-Roc1981/1997 is offline  
Old 03-17-2003, 04:06 PM
  #8  
Registered User
 
Dirt Reynolds's Avatar
 
Join Date: Jan 2003
Location: Surrey, BC
Posts: 398
The solenoid is around $50 or so from The Paddock.

Dave
Dirt Reynolds is offline  
Old 03-17-2003, 07:55 PM
  #9  
Classic Tech Moderator
 
Erik's Avatar
 
Join Date: Apr 1999
Location: Burnaby, BC
Posts: 471
If the air induction is not working, check to make sure it's not just the switch. On my car, the switch was faulty, and a new one was only about $15 CDN.
Erik is offline  
Old 03-18-2003, 08:45 AM
  #10  
Registered User
Thread Starter
 
J-Roc1981/1997's Avatar
 
Join Date: Mar 2003
Posts: 6
where do the orange and black wires go? on the solenoid?
J-Roc1981/1997 is offline  
Old 03-21-2003, 09:32 AM
  #11  
Registered User
 
scott 81 z28's Avatar
 
Join Date: Mar 2003
Location: Pasadena,Tx
Posts: 10
yeha i just bought a 81 z28 about 3 weeks ago and i was looking at that b/c my wires r just hanging there too and i didnt know where they went.
scott 81 z28 is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
F'n1996Z28SS
Cars For Sale
8
08-23-2023 11:19 PM
barry76lt
Events and Cruise Spots
13
07-21-2015 06:17 AM
The Seer
Appearance
3
11-24-2014 07:59 AM
BM93Z
Car Audio and Electronics
16
08-22-2002 02:45 PM



Quick Reply: 1981 z28 air induction



All times are GMT -5. The time now is 08:17 PM.