stock 6.1 Harmonic Balancer / pulley on a 5.7 - Dodge Challenger Forum: Challenger & SRT8 Forums
Performance Modifications Want to talk about performance modifications for your Dodge Challenger? This is the forum for that. Anything related to quick bolt-on mods (e.g., cams, heads, oil catch cans etc.). (Dodge Challenger Performance Modifications)

 
LinkBack Thread Tools Display Modes
post #1 of 6 (permalink) Old 03-29-2015, 10:53 PM Thread Starter
Senior Member
 
Join Date: Jun 2013
Posts: 157
Thanks: 2
Thanked 6 Times in 5 Posts
Feedback Score: 0 reviews
(Thread Starter)
stock 6.1 Harmonic Balancer / pulley on a 5.7

is there any performance gains on putting a stock 6.1 under drive pulley on a 5.7
anyone heard of this or done this also iv never really messed with pulleys before is it something i can change my self and are they any down sides to them ? do i need a tune can they be used on a stock engine?

white 2012 challenger R/T automatic 93 tune kn cai and a res delete
22in Vossen cv1's
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
chrisrt is offline  
Sponsored Links
Advertisement
 
post #2 of 6 (permalink) Old 03-30-2015, 04:43 AM
Lifetime Premium Member
 
R/T-Randy's Avatar
 
Join Date: Jul 2012
Location: Raymond, MS
Posts: 615
Thanks: 188
Thanked 125 Times in 84 Posts
Garage
Feedback Score: 0 reviews
Putting a stock 6.1 under drive pulley on a 5.7 harmonic balancer should work fine if the pulley mounting holes line up.

As far as putting a 6.1 harmonic balancer on a 5.7 motor, I am not so sure. The weight of the 6.1 balancer may not be optimum for the 5.7 motor. You may run into issues, but it might be fine. I would do my home work before doing so.

Things to check into would be the weight difference, hub size (going into the timing cover) so you don't have any leaks, crank hub diameter (will the balancer fit on the crankshaft) and pulley mounting holes. I have no idea about the 6.1 and 5.7 crankshaft specs (to mount the balancer).

I doubt you will have any performance gain from changing the harmonic balancer.

Some people do put under size pulleys as a performance mod. The under size pulley will slow down the rotation of the accessories attached to it. The water pump, A/C compressor, etc. This may free up a pony or 2 at higher RPM.

Not really significant enough to go through the hassle, expense and possibly have a negative effect to something else IMO. Engine cooling and battery charging may not work was well.

Just my opinion, I could be wrong.

2012 Tungsten R/T Classic, 6 speed w/STP, 730 RHR w/sound group II and heritage wheels.
Mods: none

MSgt, USAF Retired
R/T-Randy is offline  
post #3 of 6 (permalink) Old 03-30-2015, 05:32 AM
Lifetime Premium Member
 
bwbike's Avatar
 
Join Date: Aug 2008
Location: PA
Posts: 7,281
Thanks: 293
Thanked 573 Times in 404 Posts
Garage
Feedback Score: 4 reviews
Quote:
Originally Posted by R/T-Randy View Post
. . . Not really significant enough to go through the hassle, . . .
........^^^^^^^^^^
...............This


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

2015 R/T SP, 23G, 6-Speed Tremec, SG-II (ordered 7/10, built 9/8, home 9/17/14)
Mods: Skip Shift Eliminator, HC airbox (no need to mod anything else)
- - - - - - - - - - - - - - - - - - - - - - - - -
2015 Jeep Renegade Trailhawk

2009 R/T 27F, 6-Speed Tremec
Mods: Skip Shift Eliminator, Hood Struts, Functional Hood Scoops, RPI Designs Mud Flaps, Cabin Air Filter, OEM Sound Group II
Traded
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
bwbike is offline  
Sponsored Links
Advertisement
 
post #4 of 6 (permalink) Old 03-30-2015, 06:05 AM
Senior Member
 
Modern Muscle's Avatar
 
Join Date: Dec 2010
Location: Martinsville
Posts: 2,890
Thanks: 461
Thanked 858 Times in 549 Posts
Feedback Score: 0 reviews
The 6.1 Balancer on a 05-08 5.7 works as a inexpensive under drive pulley people have been doing it for years with no issues. However it will not fit on the 09+ 5.7
Modern Muscle is offline  
post #5 of 6 (permalink) Old 05-14-2019, 06:44 PM
Junior Member
 
Mopartony345's Avatar
 
Join Date: May 2019
Posts: 1
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Would it work on my 2012 Dodge Challenger rt 5.7 ? Has anyone does this mod thanks
Mopartony345 is offline  
post #6 of 6 (permalink) Old 05-14-2019, 09:40 PM
Senior Member
 
ChallyTatum's Avatar
 
Join Date: Dec 2016
Location: The state where 4 out of 7 former Governors went to jail
Posts: 4,009
Thanks: 372
Thanked 881 Times in 743 Posts
Feedback Score: 0 reviews
Quote:
Originally Posted by Mopartony345 View Post
Would it work on my 2012 Dodge Challenger rt 5.7 ? Has anyone does this mod thanks
According to the above post from Modern Muscle it will not work on your 2012.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

2015 Challenger RT+ (non-STP)
8lb Magnuson w/ Innovate PSB-1 wideband/boost/shift light gauge
Corsa extreme (2.5")
4" Aluminum one-piece driveshaft
Hellcat bottom airbox
Stainless Works LT headers (2" primaries)
Barton shifter assembly w/ Lou's short shaft and Speed Dawg knob
Comp Cam 7929 & 7748 push rods (gives slightly more lifter preload)
A2speed aluminum coil and valve covers (built in catchcan)
ChallyTatum is online now  
Sponsored Links
Advertisement
 
Reply

  Dodge Challenger Forum: Challenger & SRT8 Forums > General, Performance, and Technical > Performance Modifications

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Dodge Challenger Forum: Challenger & SRT8 Forums forums, you must first register.
Please enter your desired user 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:
OR

Log-in










« +25 hp | -
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Similar Threads
Thread Thread Starter Forum Replies Last Post
Timing chain failure on the Dodge Challenger raVenX Challenger Issues & Problems 6101 01-31-2019 09:18 AM
Mystery Grey IAT Sensor Connector - SOLVED! rayzazoo Articles - Engine, Other 130 10-11-2016 02:37 AM
procharger SRT 6.1 on R/T 5.7 khalood_996 Dodge Challenger R/T Specific 1 10-19-2014 03:00 PM
Review: Intune Diablosport on a 392 Challenger rayzazoo General Challenger Discussion 25 05-22-2014 11:16 AM

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

 
For the best viewing experience please update your browser to Google Chrome