HEI Springs - 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> Hotrodding Basics
User Name
Password
lost password?   |   register now

Reply
 
LinkBack Thread Tools
  #1 (permalink)  
Old 03-29-2004, 05:22 PM
Sweet-34's Avatar
Lost In The 50's
 
Last photo:
Join Date: Mar 2004
Location: Florida
Posts: 128
Wiki Edits: 0

Thanks: 2
Thanked 0 Times in 0 Posts
HEI Springs

Bought a new HEI for my crate 350ci. My buddy started messing with the springs in the HEI. He lost the stock springs!!!! How do I know what springs are stock and where do I buy them?

He put in one blue and one gray and set the Total timing around 32-34. I don't like it!!!! It cranks slow from time to time. He says that's normal.

I set the timing back to 8 degrees btdc with his lighter springs installed. It run crappy....no performance....backfire on acceleration etc. Bumped the timing back up to 12-14 degrees on the timing tab. Runs OK....but not great!!!

I never had the chance to try it with the stock springs and new crate motor. Any help would be appreciated.

Sweet-34

    Advertisement
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 03-29-2004, 05:35 PM
poncho62's Avatar
Out of the Loop Moderator
 
Last wiki edit: Streetbeasts links
Last journal entry: at car show
Last photo:
Join Date: Oct 2003
Location: Hanover, Ontario, Canada
Age: 62
Posts: 16,858
Wiki Edits: 5

Thanks: 20
Thanked 247 Times in 201 Posts
Probably can get some from the GM dealer. I would also buy a performance advance kit, which comes with weights and 3 sets of springs. That way you can experiment some more.
__________________
Ontario Rodders

Budget RVs
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 03-30-2004, 08:19 PM
Member
 
Join Date: Oct 2003
Location: mn
Age: 34
Posts: 344
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
I would find a good rebuilder and have them set it. I am not sure if ignition man is on this site but he is on others he does the best out there tell him what you want and he will build it and tell you here to set it and from there its a drop in deal
Jesse
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 04-07-2004, 04:22 PM
Member
 
Join Date: Feb 2003
Location: Enumclaw WA
Age: 28
Posts: 61
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
NAPA should have a set of springs, Just ask them for a HEI distributor re-curve kit

It should have three sets of springs, the whights and the bushings in it

Ben
Reply With Quote Quick reply to this message
  #5 (permalink)  
Old 04-12-2004, 09:04 PM
DoubleVision's Avatar
Not Considered a Senior Member
 
Last photo:
Join Date: Oct 2002
Location: Heart Of Dixie
Age: 40
Posts: 10,654
Wiki Edits: 0

Thanks: 15
Thanked 58 Times in 55 Posts
is the vacuum advance connected to a manifold or ported vacuum source? set the spark timing to 12 degrees BTDC with the vacuum advance disconnected and plugged, then connect the vacuum advance to a manifold source and see how it runs, if detonation is detected, back off the timing 2 degree`s at a time until it stops, then it`s set.
Reply With Quote Quick reply to this message
  #6 (permalink)  
Old 04-14-2004, 11:46 PM
lust4speed's Avatar
Member
 
Last photo:
Join Date: Oct 2003
Location: Inland Empire, SOCAL
Posts: 424
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Your friend had the right idea. Set max advance and work backwards from there. Have your buddy reset the total advance where it was, but this time install the heaviest springs you have in the kit. The light springs could allow too much advance at cranking speed. If this doesn't help, then you will need to have a shop spread out the curve a bit.

Basically, if your engine likes 34 degrees total and only 14 initial, then your distributor needs to be curved for 20 engine degrees advance (14 initial plus 20 equals 34 total). Right now, it sounds like you might have a very limited advance curve, and working backwards you would have 34 max - 16 mechanical equals 18 initial which could allow your engine to crank hard.
Reply With Quote Quick reply to this message

Recent Hotrodding Basics 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:
If you do not want to register, fill this field only and the name will be used as user name for your post.
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



All times are GMT -6. The time now is 09:37 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.