2.8 to 350sbc swap in 91 camaro - Hot Rod Forum : Hotrodders Bulletin Board
Hotrodders.com -- Hot Rod Forum



Register FAQ Search Today's Posts Unanswered Posts Auto Escrow Insurance Auto Loans
Hot Rod Forum : Hotrodders Bulletin Board > Tech Help> Electrical
User Name
Password
lost password?   |   register now

Reply
 
LinkBack Thread Tools
  #1 (permalink)  
Old 07-23-2007, 08:17 PM
Registered User
 
Join Date: May 2007
Location: PA
Posts: 57
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
2.8 to 350sbc swap in 91 camaro

Got a ? about the 91 camaro that i purchased this week. The darn thing has the little dinky 2.8 in it. The car was supposed to have had a carbed sbc in it before the kid first got the car, but blew the motor and slapped this 2.8 fuel injected motor back in it from another car, but failed to get it running. Not sure what was done with the wiring thru all this, but it seems to be ok to me just by looking at it. I have a fresh 355sbc with HEI @ TH350 tranny to install back into the car, but with never having done this swap before, i need some good advice on wiring up the new carbed sbc so i dont wind up with a barn fire in my drive. Wiring has never been one of my strong points, but i do want this thing wired up right. So if anyone out there had done this swap before, i need to know wich wires go to the (alt,str,HEI) so i can have this thing done up the right way. (Please Advise)

    Advertisement
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 07-23-2007, 08:48 PM
docvette's Avatar
Hotrodders.com Moderator
 
Last wiki edit: Rebuild an alternator Last photo:
Join Date: Mar 2004
Location: Lafayette, california
Age: 62
Posts: 7,362
Wiki Edits: 12

Thanks: 0
Thanked 6 Times in 3 Posts
Doc here,

Will the car be subject to smog inspection?

What induction system does the 355 have?

What Distributer does it use?

Will ANY of it be dependent on Computer support?


Wiring is straight forward,

Large Battery cable to the Large terminal on the starter solenoid. Along with that, 2 #10 Gauge wires, both fuse linked, one to the main buss support system (fuse buss) and "Hot at all times" on the Ignition switch, the other to the Output Lug on the Alternator . (usually, Pink, Orange, Yellow or Red in colors)

The "S" Terminal on the solenoid, (Closest Small terminal to the block) will get a Purple wire, that leads to the neutral Safety Switch, From there to the "Hot in Start Only" terminal of the ignition switch.

The HEI will get a 12 to 10 gauge wire, usually (pink or orange or red in color) To the "BATT" Terminal on the cap. This comes from the "Hot In Run Only" terminal of the Ignition.

The Tach Terminal will get a white wire, about 14 gauge, This goes directly to the stock tach.

The Alternator, Depending on what type you have, will get (if a 3 wire 12SI Delco type internally Regulated) The output lug, (already covered, )

The #3 small red terminal may go to the Horn relay POWER wire, The Buss System, Or (if regulation is not a problem) Jumped Directly to the Alternator output wire, or battery , or single isolated terminal lug at or near the battery.

The #2 Wire, The Brown wire, will go to the factory charge lamp (and maybe the choke heater relay , is so designed) and the Ignition switch Via a fuse.

All the senders will hook up as they did when it came out EXCEPT, (if they will mechanically fit) use the stock senders in the new block, Their resistive values match the instruments..and it may be the ones on the new engine are NOT the same values..Then, If at all, the gauges will read grossly in error.

That SHOULD be all you need for basic Fire, run and charge on the new engine.

Doc
__________________
Aftermarket Solutions
Electronic & Electrical
Innovations
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 07-23-2007, 09:12 PM
Registered User
 
Join Date: May 2007
Location: PA
Posts: 57
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Thanx for the great info, the motor is a carbed 355 with HEI, Edelbrock EPS performer @ performer 600cfm. There is no smog testing done in my erea, and no, there is also no comp needed to make the motor run.
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 07-24-2007, 12:57 AM
docvette's Avatar
Hotrodders.com Moderator
 
Last wiki edit: Rebuild an alternator Last photo:
Join Date: Mar 2004
Location: Lafayette, california
Age: 62
Posts: 7,362
Wiki Edits: 12

Thanks: 0
Thanked 6 Times in 3 Posts
Doc here,

Then, you may, at that point, remove the computer, and extra harness wiring harness..(untape , and un fuse..don't cut..) Unless you have BCM modules ( I doubt, or PTCM modules) your done with the computer.


If your going to throw it in the garbage, don't , box it up and mail it cheapest to me..I'll pay ship..I have a non automotive use for all the freebies I can get..



Doc
__________________
Aftermarket Solutions
Electronic & Electrical
Innovations
Reply With Quote Quick reply to this message
  #5 (permalink)  
Old 07-24-2007, 08:02 PM
Registered User
 
Join Date: May 2007
Location: PA
Posts: 57
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Thanx Doc for the great info, one other ? i have is, how to tell which wire from the ignition switch is the (Hot in run only wire) @ (Hot in start only wire)
Reply With Quote Quick reply to this message
  #6 (permalink)  
Old 07-24-2007, 10:56 PM
docvette's Avatar
Hotrodders.com Moderator
 
Last wiki edit: Rebuild an alternator Last photo:
Join Date: Mar 2004
Location: Lafayette, california
Age: 62
Posts: 7,362
Wiki Edits: 12

Thanks: 0
Thanked 6 Times in 3 Posts
Doc Here,


Uhhh....

That would be the wire that is only hot when the key is in run...

And...Uhhhh....Gee..

The Only wire that has power when the key is in start....

Doc
__________________
Aftermarket Solutions
Electronic & Electrical
Innovations
Reply With Quote Quick reply to this message
  #7 (permalink)  
Old 07-26-2007, 07:11 PM
Registered User
 
Join Date: May 2007
Location: PA
Posts: 57
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Uhhh Gee, Uhhh Gee (LOL) yeah that came to me just after i posted. But in any event, you've been a great help to me, there (Doc ) Thanx a bunch
Reply With Quote Quick reply to this message
  #8 (permalink)  
Old 07-26-2007, 07:13 PM
Registered User
 
Join Date: May 2007
Location: PA
Posts: 57
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Quote:
Originally Posted by streetmaster42
Uhhh Gee, Uhhh Gee (LOL) yeah that came to me just after i posted. But in any event, you've been a great help to me, there (Doc ) Thanx a bunch
Reply With Quote Quick reply to this message

Recent Electrical posts with photos

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Hot Rod Forum : Hotrodders Bulletin Board forums, you must first register.
Please enter your desired user name (usually not your first and last name), your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
2.8 swap to a 5.0 D M N Engine 4 10-11-2003 02:56 PM
2.8 to 4.3 swap Gassman Engine 2 09-11-2003 09:24 PM
84 camaro engine swap scooter chaser Engine 4 04-10-2003 03:33 PM
1969 Camaro Rearend Swap josh7681 Transmission - Rearend 8 01-02-2003 02:44 PM
75 Camaro swap Paul Saunders Engine 1 02-07-2002 06:13 AM


All times are GMT -6. The time now is 04:01 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
Copyright Hotrodders.com 1999 - 2012. All Rights Reserved.