double v-belt pulley on 130amp alternator - Vintage Mustang Forums

 
Thread Tools
post #1 of 10 (permalink) Old 08-15-2015, 03:51 PM Thread Starter
Member
 
Join Date: May 2012
Posts: 88
double v-belt pulley on 130amp alternator

Hi Everyone,

I am trying to run a double v-belt pulley on a 130amp alternator. I have power steering and a 3 groove crank pulley. Does anyone have pics of running a similar setup? It looks like the only way to do that is by having a very long belt connecting the power steering pulley and 2nd groove of the alternator v-belt pulley.

On another note, is there a way to tell if my drive shaft has the rubber dampner inside it and is able to be shortened?

Thanks for the help!

Last edited by Stang Guy; 08-15-2015 at 03:52 PM. Reason: added pictures
Stang Guy is offline  
Sponsored Links
Advertisement
 
post #2 of 10 (permalink) Old 08-15-2015, 04:02 PM Thread Starter
Member
 
Join Date: May 2012
Posts: 88
Here are pictures of the setup.
Attached Images
File Type: jpg IMG_5082.jpg (91.6 KB, 79 views)
File Type: jpg IMG_5083.jpg (89.6 KB, 62 views)
Stang Guy is offline  
post #3 of 10 (permalink) Old 08-15-2015, 05:21 PM
Senior Member
 
c6fastback's Avatar
 
Join Date: Feb 2003
Location: washington, GraniteFalls
Posts: 3,124
Send a message via AIM to c6fastback
Usually you would run a single or double belt on the alternator/water pump /crank and another belt on crank/power steering or crank/water pump/power steering .

68 302-4V w/1.84",1.54" ported , Comp XE268H , 2200 rpm Hughes converter, 3.25 9" w/10x2.5" shoes , MSD box/distrib , RPM intake , 670 Holley , cross flow aluminum radiator , Granada discs......


Michael S.


c6fastback is offline  
 
post #4 of 10 (permalink) Old 08-16-2015, 01:26 AM
Just some guy
 
GypsyR's Avatar
 
Join Date: Jun 2001
Location: SC foothills, USA
Posts: 15,263
Garage
I've fought with that in the past with little luck, depending on the vehicle. On my '67 I've found it practical to only run a single sheave with my current setup. Not being a driver, I haven't had it for real world testing. Depending on setup, some people have had belt squeal. If I get that then the first thing I will do is try a "289 HiPo" alternator pulley. The larger diameter slows the rotation a bit but happily 3G's deal with low RPM operation without really high demand quite well. The point of swapping to a HiPo pulley is to give the belt more surface area to contact. More area=less slip=less squeal. The goal being no squeal. Without actually doing the math, I'd guess the contact area of HiPo pulley to be quite a bit more than the stock diameter but maybe not as much as a double sheave.
GypsyR is offline  
post #5 of 10 (permalink) Old 08-16-2015, 04:54 AM
Senior Member
 
Markus's Avatar
 
Join Date: Jan 2009
Location: germany
Posts: 152
Since i have my 3G alternator i have a squeling and belt eating problem with ac and electric fan on.
With a double pulley on the alternator and longer ps belt the problem is gone.

With out ac, electric fan and other high current parts you can try a bigger diameter for the alternator pulley. Like GypsyR said.

Markus
Attached Images
File Type: jpg P1050992.jpg (93.2 KB, 52 views)
File Type: jpg P1060021.jpg (91.8 KB, 58 views)
File Type: jpg P1060022.jpg (96.9 KB, 55 views)
File Type: jpg P1060023.jpg (96.9 KB, 53 views)
File Type: jpg P1060024.jpg (94.5 KB, 46 views)
File Type: jpg P1060025.jpg (94.3 KB, 45 views)
File Type: jpg P1060026.jpg (91.1 KB, 47 views)

67 Mustang Fastback restomod
- 331 stroker
- MSD Atomic EFI
- AFR 185, comp pro magnum RR
- Ed Curtis custom cam
- Hooker comp. LT
- TREMEC TKO
- 3.55 : 1
- Innovate wideband
- complete specs at http://www.mustang1967.de/overview.html

68 Mustang Coupe daily driver
- 5.0 roller
- Edelbrock e-street heads with Ed Curtis custom cam/valve train
- performer rpm intake
- hedman headers
- ac
- pb
- borgeson steering
- complete specs at http://www.mustang1967.de/overviewcoupe.html
Markus is offline  
post #6 of 10 (permalink) Old 08-17-2015, 02:36 AM Thread Starter
Member
 
Join Date: May 2012
Posts: 88
Thank you everyone for the pictures and help! This definitely helps.

Guy
Stang Guy is offline  
post #7 of 10 (permalink) Old 08-17-2015, 03:54 AM
Senior Member
 
Join Date: Sep 2014
Posts: 191
You can run a double pulley on the alt but i don't know why. I have always run a single groove pulley with a stock alt and have ac with never a problem with belt squeal. Wii soon be switching to a 135 a 3g and will still keep the single groove pulley. Though on my preset vehicle I run a hipo alt pulley to slow down the alt rpms because of the larger crank pulley.
ron
FordsForever is offline  
post #8 of 10 (permalink) Old 05-18-2017, 02:24 PM
Senior Member
 
Rorin67's Avatar
 
Join Date: May 2006
Location: At the beach in SoCal
Posts: 2,579
Garage
Similar to Markus, I have a long belt that runs around the crank, power steering, over the water pump, and around the 3G alt pulley. Then a shorter belt just going around the crank, water pump, and the second groove of the 3G alt pulley. It can be difficult to get the tension on both belts exactly the same to avoid belt squeal, but it can certainly be done. I run this setup on the '67 daily driver and it's totally fine with no squeal.

Formula for a daily driver street fighter in Los Angeles:
'67 Fastback + Built 351W + T5 + 3.55:1 + LTs + 2.5" + 40s + TT2 17s
+ Shelby drop + CSRP + R&P + Bilsteins + SFCs + under riders + 22 Gal.
+ 3pts + 2nd Skin + MTF grille/lights + LEDs + SiriusXM

MTF Grille/Light Kit Install w/ Pics... & Engine Bay Pics...
As featured in Hot Rod Magazine tech article, May 2014
Rorin67 is offline  
post #9 of 10 (permalink) Old 05-18-2017, 04:46 PM
Senior Member
 
Join Date: Jul 2013
Posts: 1,718
I get my sandwichs from World Deli.
1ofAMillion+ is offline  
post #10 of 10 (permalink) Old 05-20-2017, 02:58 AM
Just some guy
 
GypsyR's Avatar
 
Join Date: Jun 2001
Location: SC foothills, USA
Posts: 15,263
Garage
They wouldn't be Spam sandwiches, would they? (post deleted)
GypsyR is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Vintage Mustang 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









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.



Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



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 Off

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