Moparchat - Home of MOPAR enthusiasts worldwide!


Discount Auto Parts

Go Back   Moparchat - Home of MOPAR enthusiasts worldwide! > >

Click here to search for Mopar cars and parts for sale.

Reply
 
Thread Tools Display Modes
  #1  
Old 01-13-2019, 12:30 AM
Classicexpress Classicexpress is offline
Registered User
 
Join Date: Jan 2019
Location: windsor
Posts: 1
Default 360 balancing act

I'm ditching my 318 for a la 360 in my 85 RC. The new 360 is balanced but not sure if it affects what harmonic balancer I need. The machine shop also suggested a flex plate that will work with both the small and large TC. Sure would appreciate some balanced comment.
Reply With Quote
  #2  
Old 02-16-2019, 10:56 PM
Cudadrag Cudadrag is offline
Registered User
 
Join Date: Dec 2004
Location: Maple Grove, MN
Age: 58
Posts: 817
Default

Balancers are designed to self adjust to dampen rotation wobbles that occur with all engines. To a point that is. Balancing a motor assures you are within a balancer's performance threshold. Aftermarket performance balancers have tighter tolerance and thus tighter harmonic vibration curve at higher RPMs. I have never had any issues with Mopar Performance balancers. ATI is the leader in aftermarket balancers that I've seen.
__________________
2003 Dodge Ram 3500 dually Cummins 5.9L 4x4
1974 Plymouth Duster 451ci (Bracket Car) E.T. 10.20
1970 Plymouth Cuda 904ci Schubeck DOHC Outlaw project E.T. ???
1969 Plymouth GTX. Stock street car.
Reply With Quote
  #3  
Old 02-19-2019, 08:51 PM
76 Beeper's Avatar
76 Beeper 76 Beeper is offline
Registered User
 
Join Date: Jun 2005
Location: Stoney Creek Ont. Canada
Posts: 9
Default

Find out if the engine is internally balanced or externally balanced.
If it's internally balanced then it's the same as the 318 or 340 engine and a neutral harmonic balancer is required.
If its externally balanced then you will need a weighted balancer as well as a converter with a weight on it. This way you can use a neutral flex plate.
Romac is another good balancer manufacturer.
Attached Images
File Type: jpg Romac balancer.JPG (21.2 KB, 4 views)
Reply With Quote
  #4  
Old 02-22-2019, 03:02 PM
John Kunkel John Kunkel is offline
Registered User
 
Join Date: Nov 2001
Location: NorCal
Age: 75
Posts: 10,059
Default

The fact that the machine shop recommended a specific flexplate tells me it's externally balanced. The 360LA has the largest amount of external balance of any Mopar, so balancing internally is way expensive.
__________________
They say money can't buy happiness but it can sure finance the illusion.
Reply With Quote
  #5  
Old 02-26-2019, 08:41 AM
Ray Bell's Avatar
Ray Bell Ray Bell is offline
Registered User
 
Join Date: May 2005
Location: Dalveen, Queensland
Posts: 3,224
Default

While ATI have the name, BHJ Dynamics in California also do some excellent harmonic balancers. A quick look on their website didn't show up a balancer for the 360 but I'm sure they do one.

The harmonic balancer's job is quite complex. This 'White Paper' from BHJ gives a lot of information about the many variables and different types of balancers used in all types of engines:

Damper Technology White Paper : HarmonicDampers.com by BHJ Dynamics, Performance Harmonic Dampers, Harmonic Balancers and Specialty Crankshaft Vibration Dampers
__________________
The stories of youth, of the burden of time, and the death of devotion.

If you need to contact me, please use email - raybell@racingphoenix.com - please don't use PMs
Reply With Quote
Reply

Tags
balanced , flex , plate , shop , suggested

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not 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

Forum Jump




All times are GMT -4. The time now is 08:52 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2019, vBulletin Solutions Inc.
Search Engine Optimisation provided by DragonByte SEO v2.0.37 (Lite) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
vBulletin Optimisation provided by vB Optimise (Lite) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
. . . . .