Lightweight pulleys - Scion xB Forum
 1Likes
  • 1 Post By GregS
 
LinkBack Thread Tools
post #1 of 7 Old 04-03-2018, 12:01 PM Thread Starter
Registered User
 
Join Date: Mar 2018
Posts: 2
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
markster33139 is on a distinguished road
(Thread Starter)
Lightweight pulleys

I have already installed the Agency Power crank pulley, but I couldn't find any other available pulleys for the alternator etc only for 1st generation Xb and TC. Does anyone know if these are available for the 2nd generation, assuming that the TC pulleys are not compatible with the Xb. Thanks.

Sent from my ONEPLUS A5000 using Tapatalk
markster33139 is offline  
Sponsored Links
Advertisement
 
post #2 of 7 Old 04-03-2018, 04:01 PM
Lots o leather and copper
 
GregS's Avatar
 
Join Date: Mar 2008
Location: Santa Clarita, CA
Posts: 1,379
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 69 Post(s)
GregS is on a distinguished road
Re: Lightweight pulleys

The 1st gen tC and 2nd gen xB share the same engine and pulleys so ones designed for the tC should work fine on the xB. Usually the only reason to change the other pulleys is if you have gone with an undersized crank pulley to make sure the accessories are operating at the same RPM they were before. Since you went with an Agency Power pulley, which keeps the stock diameter, there really is no need to change the other pulleys. It won't hurt to change them if they are the same diameter as stock but if they are larger, which they would be to compensate for a smaller crank pulley, then you would be over-driving the alternator. The other reason you aren't seeing other pulleys for the xB is that it uses an electric power steering unit so there is not power steering pump pulley to replace.
dubeexb06 likes this.
GregS is offline  
post #3 of 7 Old 04-03-2018, 04:03 PM Thread Starter
Registered User
 
Join Date: Mar 2018
Posts: 2
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
markster33139 is on a distinguished road
(Thread Starter)
Re: Lightweight pulleys

Quote:
Originally Posted by GregS View Post
The 1st gen tC and 2nd gen xB share the same engine and pulleys so ones designed for the tC should work fine on the xB. Usually the only reason to change the other pulleys is if you have gone with an undersized crank pulley to make sure the accessories are operating at the same RPM they were before. Since you went with an Agency Power pulley, which keeps the stock diameter, there really is no need to change the other pulleys. It won't hurt to change them if they are the same diameter as stock but if they are larger, which they would be to compensate for a smaller crank pulley, then you would be over-driving the alternator. The other reason you aren't seeing other pulleys for the xB is that it uses an electric power steering unit so there is not power steering pump pulley to replace.
Thank you and understood

Sent from my ONEPLUS A5000 using Tapatalk
markster33139 is offline  
Sponsored Links
Advertisement
 
post #4 of 7 Old 10-22-2018, 10:56 AM
A Flawed Perspective
 
bigmarv_05's Avatar
 
Join Date: Jan 2008
Location: East Val, AZ
Posts: 155
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 9 Post(s)
bigmarv_05 is on a distinguished road
Garage
Re: Lightweight pulleys

What's the benefit of a lightweight pulley?

bigmarv_05 is offline  
post #5 of 7 Old 10-22-2018, 01:33 PM
Lots o leather and copper
 
GregS's Avatar
 
Join Date: Mar 2008
Location: Santa Clarita, CA
Posts: 1,379
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 69 Post(s)
GregS is on a distinguished road
Re: Lightweight pulleys

Quote:
Originally Posted by bigmarv_05 View Post
What's the benefit of a lightweight pulley?
Less mass for the engine to turn so more power able to go the the wheels. It might add a whole 2 hp.
GregS is offline  
post #6 of 7 Old 10-22-2018, 01:46 PM
A Flawed Perspective
 
bigmarv_05's Avatar
 
Join Date: Jan 2008
Location: East Val, AZ
Posts: 155
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 9 Post(s)
bigmarv_05 is on a distinguished road
Garage
Quote:
Originally Posted by GregS View Post
Quote:
Originally Posted by bigmarv_05 View Post
What's the benefit of a lightweight pulley?
Less mass for the engine to turn so more power able to go the the wheels. It might add a whole 2 hp.
The epic gains in power aside.... is it worth the investment and time to install? While my box is definitively climbing in mileage, and while I certainly contradict myself, I like the idea of taking stress off the motor where I can. I contradict myself because at the same time I'm looking into small performance mods.

bigmarv_05 is offline  
post #7 of 7 Old 10-22-2018, 01:54 PM
Lots o leather and copper
 
GregS's Avatar
 
Join Date: Mar 2008
Location: Santa Clarita, CA
Posts: 1,379
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 69 Post(s)
GregS is on a distinguished road
Re: Lightweight pulleys

Quote:
Originally Posted by bigmarv_05 View Post
The epic gains in power aside.... is it worth the investment and time to install? While my box is definitively climbing in mileage, and while I certainly contradict myself, I like the idea of taking stress off the motor where I can. I contradict myself because at the same time I'm looking into small performance mods.
For the $130-150 it costs to get one new, no I don't think it's worth it. i managed to get one used a while back and for the $60 I paid I felt that was worth it, mainly for the little extra pep you feel off the line.
GregS is offline  
Reply

User Tag List




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
Trackbacks are On
Pingbacks are On
Refbacks are On

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