Timing my 383 - 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> Engine
User Name
Password
lost password?   |   register now

Reply
 
LinkBack Thread Tools
  #1 (permalink)  
Old 08-25-2010, 02:07 PM
BigLeoRocks's Avatar
Registered User
 
Join Date: Apr 2010
Location: arizona
Age: 39
Posts: 66
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Timing my 383

Fellas,

Any thoughts on initial timing and total timing for my combo would be appreciated. Thanks alot guys.

383
3.750" Crank
5.7" Big beam rods
10:1 Comp.
Dart 200cc Int. runners 2.02/1.60 Platinum Iron eagles
COMP CAMS 0.555"/0.576". ex. valve lift. Advertised duration is 288 Int. and 294 ex. Duration at .050" is 236 Int. and 242 ex. Ground on a 110 Lobe center.
1.6 rocker arms
EdelBrock RPM Air Gap
750 street HP doublepumper
DUI vac advance didtributor..im at work but I think it was set at 22 deg at 2500...i could be wrong tho.

    Advertisement
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 08-25-2010, 02:46 PM
V8 Super Beetle's Avatar
VW makes it, Chevy shakes it..
 
Last photo:
Join Date: Jan 2008
Location: Houston, TX
Age: 33
Posts: 1,245
Wiki Edits: 0

Thanks: 5
Thanked 0 Times in 0 Posts
My guess would be 24-26 initial and 34-36 total. Probably close to needing the timing locked out at total timing.
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 08-25-2010, 03:18 PM
BigLeoRocks's Avatar
Registered User
 
Join Date: Apr 2010
Location: arizona
Age: 39
Posts: 66
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
I'm not arguing with you but isnt that high for initial timing? I have had the beast running a couple of weeks. It must be pretty damn close...but I have yet to put the timing light on it yet. Going to do it this weekend. It seems to run pretty good. I have noticed a little hesitation at first acceleration...and a little bump..bump..bump while idleing. Will I hear the ping under the hood or out of the exhaust? This thing is damn loud. 3 inch exhaust to 3 inch super 44's dumped at the rear end turned down. Thanks superbeetle.



http://www.youtube.com/user/BigLeoRo.../1/b8qoEh-zh8Y
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 08-25-2010, 03:32 PM
V8 Super Beetle's Avatar
VW makes it, Chevy shakes it..
 
Last photo:
Join Date: Jan 2008
Location: Houston, TX
Age: 33
Posts: 1,245
Wiki Edits: 0

Thanks: 5
Thanked 0 Times in 0 Posts
You'll need the extra initial cause of the size of the cam you have. You'll be able to hear spark ping from under the hood. I know I could hear mine when I was tuning from under the hood and I just have straight dual exhaust to flowmaster series 40s. You'll have to readjust you distributors advance curve.

My engine has a 234/234 @ .050 cam and it needed the initial 24-26 timing and 34-36 total. Although, I have mine installed 4 advanced. It doesn't bog what so ever when I mass the gas.

That's my understanding. I'm sure someone else will chime in.
Reply With Quote Quick reply to this message
  #5 (permalink)  
Old 08-25-2010, 03:34 PM
V8 Super Beetle's Avatar
VW makes it, Chevy shakes it..
 
Last photo:
Join Date: Jan 2008
Location: Houston, TX
Age: 33
Posts: 1,245
Wiki Edits: 0

Thanks: 5
Thanked 0 Times in 0 Posts
BTW, spark ping will sound like a metal rattle or a jar of marbles rattling.
Reply With Quote Quick reply to this message
  #6 (permalink)  
Old 08-25-2010, 03:35 PM
BigLeoRocks's Avatar
Registered User
 
Join Date: Apr 2010
Location: arizona
Age: 39
Posts: 66
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
I should have said it hesitates normal street acceleration...It doesnt hesitate at all when I give it some foot. It must be pretty close. Thanks again dude.
Reply With Quote Quick reply to this message
  #7 (permalink)  
Old 08-25-2010, 03:39 PM
V8 Super Beetle's Avatar
VW makes it, Chevy shakes it..
 
Last photo:
Join Date: Jan 2008
Location: Houston, TX
Age: 33
Posts: 1,245
Wiki Edits: 0

Thanks: 5
Thanked 0 Times in 0 Posts
Sounds good. Here's mine running with the timing specs I was telling you about. You'll notice the smooth throttle response as I give the car a little gas to get up the driveway.

http://www.youtube.com/watch?v=wKUldF9XIyk
Reply With Quote Quick reply to this message
  #8 (permalink)  
Old 08-25-2010, 03:40 PM
BigLeoRocks's Avatar
Registered User
 
Join Date: Apr 2010
Location: arizona
Age: 39
Posts: 66
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
I dont hear anything like that under the hood...but I hear a sound like that out of the exhaust everty few seconds..but they are flowmasters. I just didnt notice it before.
Reply With Quote Quick reply to this message
  #9 (permalink)  
Old 08-25-2010, 03:41 PM
V8 Super Beetle's Avatar
VW makes it, Chevy shakes it..
 
Last photo:
Join Date: Jan 2008
Location: Houston, TX
Age: 33
Posts: 1,245
Wiki Edits: 0

Thanks: 5
Thanked 0 Times in 0 Posts
Quote:
Originally Posted by BigLeoRocks
I should have said it hesitates normal street acceleration...It doesnt hesitate at all when I give it some foot. It must be pretty close. Thanks again dude.
True. Might just need a little carb tuning. Put a timing light on it and see what you've got it set at initial and total, and play around with it some to see how she acts.
Reply With Quote Quick reply to this message
  #10 (permalink)  
Old 08-25-2010, 03:43 PM
BigLeoRocks's Avatar
Registered User
 
Join Date: Apr 2010
Location: arizona
Age: 39
Posts: 66
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
thats ******.
Reply With Quote Quick reply to this message
  #11 (permalink)  
Old 08-25-2010, 03:44 PM
BigLeoRocks's Avatar
Registered User
 
Join Date: Apr 2010
Location: arizona
Age: 39
Posts: 66
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
i mean badarse
Reply With Quote Quick reply to this message
  #12 (permalink)  
Old 08-25-2010, 07:21 PM
bubbahotep's Avatar
Registered User
 
Last photo:
Join Date: Aug 2008
Location: NYC
Age: 42
Posts: 487
Wiki Edits: 0

Thanks: 1
Thanked 1 Time in 1 Post
From the video it sounds a little choppy at idle. My 383 was similar until I went with 30' at idle (26' seems to be the preferred standard but I've had good results at 30' on mine). It keeps the plugs good, gives you a cleaner higher idle, less gas smelling exhaust, and better throttle response.

Theres a ton of posts regarding timing, but with 26 inital you'd have to limit the mechanical weights

You said 22' at 2500?? Youd need 36' at 2500 starting to increase from 1500 I think.

For comparison: my 383 stroker is 9.7:1 , 510/512, duration at 50/1000 236/246
Reply With Quote Quick reply to this message

Recent Engine 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
Timing Marks ??? Zeder Engine 10 06-18-2013 04:19 AM
Chevy 383 Stroker timing Hotrodder78 Engine 4 03-15-2009 11:15 PM
Do I need vacuum advance? (Long Post) Chevy21 Engine 49 10-25-2007 12:51 PM
timing the 383 stroker 383 stroker Introduce Yourself 1 12-10-2005 02:29 PM
92 chevy pickup with 383 (timing & fuel ?s) dunegoon Engine 2 12-11-2002 08:12 PM


All times are GMT -6. The time now is 11:41 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.