New product from ZZperformance - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


Performance, Brainstorming & Tuning Talk about modifications, or anything else associated with performance enhancements. Have a new idea for performance/reliability? Post it here. No idea is stupid! (please use Detailing and Appearance for cosmetic ideas)

Reply
 
 
 
Thread Tools Search this Thread
Old 02-03-2003, 03:58 PM   #1
Junior Member
Posts like a Ricer Type-R
Thread Starter
 
Join Date: Aug 2002
Posts: 10
Thanks: 0
Thanked 0 Times in 0 Posts
willwren is on a distinguished road
Default New product from ZZperformance

I just ordered my SC coupler and a new pulley for the idler. ZZPerformance'* oversized idler is designed to prevent having to buy a new belt when undersizing a SC pulley. It makes up the difference on the Series 2 L67 when changing from the stock 3.8" pulley to either a 3.4 or 3.25. I did some rough math with one of Zoomers boys on the phone, and we figured the ratio should be pretty close for the Series 1, as well. If anything, it'll be a little tight, but this adds the benefit of great belt tension AND a greater belt 'wrap' around the circumference of the SC pulley. This is especially critical for a Series 1 SC.

Here'* the link: http://www.zzperformance.com/zzp/pro...ent_pulley.htm

My idler is starting to make a little noise, and is wearing unevenly. The new pulley comes with new bearings.......sooooooo.......

I'm gonna take one for the team here and see if this works on my Series 1. I also plan to document with photos the change procedure for the nosedrive coupler. Both parts are on the way to me as we speak. Just waiting to see if my SC Performance 2.25" SC pulley ever gets here.

Stay tuned.......
willwren is offline   Reply With Quote
Old 02-04-2003, 09:46 AM   #2
Senior Member 8-16-02
Posts like a Northstar
 
Join Date: Aug 2002
Posts: 529
Thanks: 0
Thanked 0 Times in 0 Posts
complinitor is on a distinguished road
Default

Good luck on the swap, Will. I am using the water pump underdrive and the alt overdrive right now and I love them!
complinitor is offline   Reply With Quote
Old 02-05-2003, 12:12 AM   #3
Senior Member
Posts like a Turbo
 
Join Date: Dec 2002
Location: Crystal Lake, IL
Posts: 327
Thanks: 0
Thanked 0 Times in 0 Posts
iRocco is on a distinguished road
Default

I've been reading a lot of stuff lately, and came accross an article about messing with pulleys. Basically, it says the SC pulley is ok, but when you change the sizes of those for the alternator or water pump, you could be in for trouble down the road.

The key seemed to be not to under-drive the alternator, or water pump. The former beacuse you'll stress the battery, and the latter because you'll lose cooling efficiency.

Any remarks from those with real world experience? I'd like to know if you've even noticed any differences.

Mike
iRocco is offline   Reply With Quote
Old 02-05-2003, 12:59 AM   #4
Junior Member
Posts like a Ricer Type-R
Thread Starter
 
Join Date: Aug 2002
Posts: 10
Thanks: 0
Thanked 0 Times in 0 Posts
willwren is on a distinguished road
Default

I'm only changing the diameter of the idler pulley to make up for the belt length slack caused by the smaller SC pulley. It also causes a better belt wrap around the circumference of that smaller pulley. It'* a 'dead' pulley, just along for the ride.
willwren is offline   Reply With Quote
Old 02-06-2003, 12:11 PM   #5
Senior Member 8-16-02
Posts like a Northstar
 
Join Date: Aug 2002
Posts: 529
Thanks: 0
Thanked 0 Times in 0 Posts
complinitor is on a distinguished road
Default

When youdo the math on the water pump, ours actually turn at 17,000 rpm. Reducing the overall size by 10% reduces the speed to 12,000 rpm. The CFM numbers, however, don't change as much. At 17,000, the cativation that occurs actually hampers the proper operation of the pump. At 12,000, you have reduced the problem by over 60%, therefore increasing your cooling efficiency.

I recommend changing your battery when you do the alternator. An old battery will give up the ghost quickly if you don't. You're not going to get an overcharge on the battery, but the voltage is going to go up to 14-15. Great if you are running the kind of asphalt-destroying sound system that I am.
complinitor is offline   Reply With Quote
Old 02-07-2003, 05:49 PM   #6
Junior Member
Posts like a Ricer Type-R
Thread Starter
 
Join Date: Aug 2002
Posts: 10
Thanks: 0
Thanked 0 Times in 0 Posts
willwren is on a distinguished road
Default

Got the coupler and idler pulley today. That was fast. Just gotta pick up a couple more seals to go with my outlet gasket, and I'm in business for next weekend. Still hoping for a smaller SC pulley by then......

Might have to pop for it through Pulley Boys and write off SCperformance altogether. Maybe I'll just have to DRIVE to Pulley Boys and get one. Hmmmmm......

I might have a totally different beast by next weekend.
willwren is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Stopping by ZZPerformance today. Bwayney Performance, Brainstorming & Tuning 9 06-18-2009 08:24 AM
NEW!! ZZPerformance Aluminum Roller Rocker llBlazin_llLo Performance, Brainstorming & Tuning 10 02-16-2006 03:39 PM
DRL switch from zzperformance XKalibuR Everything Electrical & Electronic 10 06-24-2005 10:30 PM
ZZPerformance coupler Spiral General GM Chat 15 05-10-2004 11:52 PM
got my ZZPerformance Coupler today (pic) harofreak00 Forced Induction 6 04-14-2004 12:03 PM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

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 Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 05:40 AM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.