LT1-LT4 Modifications 1993-97 Gen II Small Block V8

!Smog Pump

Thread Tools
 
Search this Thread
 
Old 04-28-2009, 07:08 PM
  #1  
Launching!
Thread Starter
iTrader: (1)
 
94lt105's Avatar
 
Join Date: Jul 2005
Location: Owatonna,MN
Posts: 274
Likes: 0
Received 0 Likes on 0 Posts

Default !Smog Pump

Hi guys, I have a 95 Formula with the LT1 and found out that the smog pump just froze, it ate the belt and now I would like to just bypass that pulley! I plan on taking the motor out and putting a small cam in it while getting the heads ported and polished! But like I said I want to bypass the smog pump by just getting a smaller belt, has anyone done this and if so can someone give me the belt measurement?


Also, while I have the motor out I will be pulling the heat and a/c out, because it is a t-top car for the summer and not being drivne in winter! How has this gone for other people who have done it? LMK thanx guys

Vince
Old 04-28-2009, 07:11 PM
  #2  
TECH Addict
iTrader: (30)
 
tspence45's Avatar
 
Join Date: Jan 2007
Location: Monmouth, Illinois
Posts: 2,153
Likes: 0
Received 1 Like on 1 Post

Default

The smog pump is electrical, not belt driven. So, I don't know how that would've eaten your belt. Also, taking the A/C out isn't too tough. It was a pain in the *** trying to get to some of the bolts on the A/C compressor. But, the rest was a breeze.

Last edited by tspence45; 04-28-2009 at 07:18 PM.
Old 04-29-2009, 09:17 AM
  #3  
Launching!
Thread Starter
iTrader: (1)
 
94lt105's Avatar
 
Join Date: Jul 2005
Location: Owatonna,MN
Posts: 274
Likes: 0
Received 0 Likes on 0 Posts

Default

Thanx bro, I always thought that the last pump/pulley on the passenger side was the smog pump, must be the compressor then? I Will find out when I pull the motor out in a week or so! But thanx for your time, and I hope I didnt make myself look stupid.

Vince
Old 04-29-2009, 10:48 AM
  #4  
TECH Addict
iTrader: (13)
 
sweetbmxrider's Avatar
 
Join Date: Sep 2008
Location: jersey shore
Posts: 2,768
Likes: 0
Received 3 Likes on 3 Posts
Default

you do look stupid kidding. that sounds like you are talking about the a/c compressor. you can get an a/c bypass pulley from napa or a gm dealer and retain your stock belt.
Old 04-29-2009, 11:50 AM
  #5  
Launching!
Thread Starter
iTrader: (1)
 
94lt105's Avatar
 
Join Date: Jul 2005
Location: Owatonna,MN
Posts: 274
Likes: 0
Received 0 Likes on 0 Posts

Default

Sweet, thanx bro. Ya I just called Napa and they have one for like $45, so its not to expensive. I will be replacing that when I pull the motor so I dont have to try n work around everything in the car lol!

Vince
Old 04-29-2009, 01:16 PM
  #6  
TECH Addict
iTrader: (30)
 
tspence45's Avatar
 
Join Date: Jan 2007
Location: Monmouth, Illinois
Posts: 2,153
Likes: 0
Received 1 Like on 1 Post

Default

If you want to save a few bucks, you can get A/C delete pullies off eBay for $27 shipped to your door. Quite a few people, including me, have used them with great results. It's not that big of a price difference, but just a little info if you want to save a little.
Old 04-29-2009, 01:24 PM
  #7  
TECH Senior Member
iTrader: (36)
 
ss.slp.ls1's Avatar
 
Join Date: Jan 2008
Location: Orange County, CA
Posts: 8,188
Received 26 Likes on 24 Posts

Default

Originally Posted by tspence45
If you want to save a few bucks, you can get A/C delete pullies off eBay for $27 shipped to your door. Quite a few people, including me, have used them with great results. It's not that big of a price difference, but just a little info if you want to save a little.
Not to mention weight reduction.
Old 04-29-2009, 01:44 PM
  #8  
TECH Senior Member
iTrader: (3)
 
Formula350's Avatar
 
Join Date: Oct 2006
Location: Decatur, TN (N-W of Athens)
Posts: 7,564
Likes: 0
Received 3 Likes on 3 Posts
Default

Yea, the !AC is a decent mod if: Your AC has been broken, you never use your AC, you want to save weight.
Old 04-29-2009, 02:10 PM
  #9  
TECH Apprentice
iTrader: (10)
 
iceman15's Avatar
 
Join Date: Oct 2006
Location: La Palma, CA
Posts: 362
Likes: 0
Received 0 Likes on 0 Posts

Default

Not trying to hijack but how much of a performance gain did you feel from !AC.
Old 04-29-2009, 02:40 PM
  #10  
TECH Senior Member
iTrader: (3)
 
Formula350's Avatar
 
Join Date: Oct 2006
Location: Decatur, TN (N-W of Athens)
Posts: 7,564
Likes: 0
Received 3 Likes on 3 Posts
Default

Originally Posted by iceman15
Not trying to hijack but how much of a performance gain did you feel from !AC.
Shouldn't feel anything if the AC pulley is operating properly. They are EXTREMELY free spinning when the clutch is disengaged. I think you'd be lucky to pick up a single pony on the dyno since running no belt only gains your about 5-10hp which I bet is mainly gained from the power steering.
Old 04-29-2009, 04:08 PM
  #11  
TECH Addict
iTrader: (13)
 
sweetbmxrider's Avatar
 
Join Date: Sep 2008
Location: jersey shore
Posts: 2,768
Likes: 0
Received 3 Likes on 3 Posts
Default

at WOT the a/c is disabled anyways so it isn't something you will really notice. its weight reduction which equals faster e/t's.



Quick Reply: !Smog Pump



All times are GMT -5. The time now is 10:05 PM.