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1LE / AC Delete / Smog Delete Pulley info

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Old Mar 19, 2012 | 01:27 PM
  #151  
plstu's Avatar
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Re: 1LE / AC Delete / Smog Delete Pulley info

Itr has been askedmany times nut no one seems to give the answer..... to those of you that just deleted the smog pump, what belt did you run? Does anyone have a part number? I want to do this to my 92.
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Old Mar 21, 2012 | 01:24 AM
  #152  
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Car: 92 T/A 'vert
Engine: Mild .040 over L98 4 bolt mains
Transmission: Mostly stock 700R4, 2600 Vigilante
Axle/Gears: LS1 3.42
Re: 1LE / AC Delete / Smog Delete Pulley info

Originally Posted by plstu
Itr has been askedmany times nut no one seems to give the answer..... to those of you that just deleted the smog pump, what belt did you run? Does anyone have a part number? I want to do this to my 92.
Because it depends if you have overdrive pulleys on the crank and/or alt. Just take what you have now, go down to the parts store, measure it and get one 1" shorter than you have now. Worked for me, And, A/C delete should not come into play as the pulley is the same diameter as the A/C clutch.
Attached Thumbnails 1LE / AC Delete / Smog Delete Pulley info-dscf2395.jpg  

Last edited by watajob; Mar 21, 2012 at 01:31 AM. Reason: Added pic
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Old Mar 29, 2012 | 10:47 PM
  #153  
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From: Independence missouri
Car: 89 IROC-Z28 Camaro
Engine: 350 TPI IROC
Transmission: 700R4
Re: 1LE / AC Delete / Smog Delete Pulley info

your pic is exactly what i was needing thanks man
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Old Jun 16, 2012 | 10:43 PM
  #154  
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Re: 1LE / AC Delete / Smog Delete Pulley info

Do you need to remove the entire so=mog pump or can you just take the pulley off and reroute the belt?
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Old Jun 17, 2012 | 02:54 AM
  #155  
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From: Spokane WA
Car: 92 Lingenfelter Z28 articwhite
Engine: Aluminum 615BBC
Transmission: Th400wbrake/curri entps9" locker
Axle/Gears: 4.11/4.30/4.56
Re: 1LE / AC Delete / Smog Delete Pulley info

Originally Posted by watajob
Because it depends if you have overdrive pulleys on the crank and/or alt. Just take what you have now, go down to the parts store, measure it and get one 1" shorter than you have now. Worked for me, And, A/C delete should not come into play as the pulley is the same diameter as the A/C clutch.

Dig that crazzy house hold plumbing!
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Old Sep 21, 2012 | 10:22 PM
  #156  
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From: south central pennsylvania
Car: 88 t/a 92 rs camaro 88 firebird
Engine: 305 tbi in both
Transmission: auto camaro 5spd firebird th375
Axle/Gears: 3.73 minispool
Re: 1LE / AC Delete / Smog Delete Pulley info

ive got mine run with no smog or a/c both are completly removed and ive trimmed the bracket down so i dont have a big hole may remove the powersteering in the future but for now im running a 65 inch belt but anything between 64 and 69 inches will work (guaranteed) im running the stock routing but i come off of the waterpump around the tensioner and over to the alternator down to the power steering around the crank and back up to the water pump it works great but im running the v side (grooves) of my belt on the smooth side of my tensioner im sure its not a good thing to do but at $15 for the belt ive got a spare in the trunk and it doesnt really worry me anyway
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Old Oct 8, 2012 | 05:01 PM
  #157  
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Car: 1986 Camaro
Transmission: T5
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Re: 1LE / AC Delete / Smog Delete Pulley info

I have 2 questions

#1. Has anyone figured out if there's a shorter belt that will work if you just pull out the smog pump pulley and or the a/c pulley?

#2. Does anyone know the exact weight you take off your car after pulling out the A/C? Someone told me it was about 80 lbs and if that's the case mine is coming out! lol

Last edited by KingsHustleLA; Oct 8, 2012 at 05:04 PM.
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Old Oct 8, 2012 | 05:27 PM
  #158  
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From: south central pennsylvania
Car: 88 t/a 92 rs camaro 88 firebird
Engine: 305 tbi in both
Transmission: auto camaro 5spd firebird th375
Axle/Gears: 3.73 minispool
Re: 1LE / AC Delete / Smog Delete Pulley info

if you totally remove both smog and ac you will need a 65 inch belt and id would say that the 80 lbs you talk about is both pumps the ac condensor in front of the radiator and the condensor from inside the heater assemblly plus all of from hoses and such from the smog stuff
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Old Oct 8, 2012 | 05:41 PM
  #159  
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From: south central pennsylvania
Car: 88 t/a 92 rs camaro 88 firebird
Engine: 305 tbi in both
Transmission: auto camaro 5spd firebird th375
Axle/Gears: 3.73 minispool
Re: 1LE / AC Delete / Smog Delete Pulley info

ive recently had the chance to spend an hour or two under the hood of my car and i think im going to do away with the whole tensioner system i already have my smog and a/c pumps removed and now have a huge hunk of metal just to run the tensioner i beleive that i can fabricate an adjuster for my alternator and run with no tensioner it will run off the crank to the waterpump up to the alternator down to power steering and back to the crank and the adjuster should be fairly easy to make and will pull probabally 10 lbs of aluminum off the front of the motor any one ever dont this ? is there a pre made alternator adjuster i could just buy im running a serpentine system on a L03 block alternator is on the driverside on the top something like the crude diagram shows
Attached Thumbnails 1LE / AC Delete / Smog Delete Pulley info-pulley.png  
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Old Jul 24, 2013 | 01:38 AM
  #160  
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From: Walla Walla,WA
Car: 91 Firebird, 87 E'LS' Camino
Engine: 5.7 TPI, 5.3
Transmission: 700R4,200R4
Axle/Gears: 4.10 Lock Right locker/2.43
Re: 1LE / AC Delete / Smog Delete Pulley info

This thread maybe dead but I just did this on my 91 bird on a Sunday after noon after church all I did was get a new belt part number 815k6 26.00 havnt finished reinstalling yet because I had been fighting with headers got rid of those stupid air exhaust manafolds which I had previously cut the tubes and plugged them with 1/4 brass plugs. Anyway th route I am look at has the groves side of the belt riding on the smooth tensioner which I hope will be okay. Also i ordered that ac pulley... Ohh say about 3 months ago and no word on when it is coming so scrap that idea and just go with the new belt cheaper and easier. Any way that's my 2 cents just have a few questions anyone got a pic of how they cut that bracket that held the pump and compressor? I don't need anything to be held beside the tensioner. And also some one mentioned the earlier third grns having a pirate tensioner bracket, how could I get my hands on one of those? Someone also someone mentioned the water pump might be directional I don't wanna have that going the wrong way. And finally did the other guy that had the groves of the belt on the smooth side of the tensior work out pretty well so far
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Old Jul 24, 2013 | 01:42 AM
  #161  
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From: Walla Walla,WA
Car: 91 Firebird, 87 E'LS' Camino
Engine: 5.7 TPI, 5.3
Transmission: 700R4,200R4
Axle/Gears: 4.10 Lock Right locker/2.43
Re: 1LE / AC Delete / Smog Delete Pulley info

Also watajob I noticed you had a black cylinder attached to your heat hose I was wondering why mine was in the back seat and the throttle body was by passed when I bought the car but my heater works
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Old Jul 24, 2013 | 01:53 AM
  #162  
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From: Walla Walla,WA
Car: 91 Firebird, 87 E'LS' Camino
Engine: 5.7 TPI, 5.3
Transmission: 700R4,200R4
Axle/Gears: 4.10 Lock Right locker/2.43
Re: 1LE / AC Delete / Smog Delete Pulley info

Originally Posted by Jason1313
Great thread, I read over all the posts and maybe I just missed it but does removing the smog pump and replacing the pulley affect the ecm in anyway? Would I have to have a new chip put in or would it be ok with the stock chip?

Thanks!
ya it will throw a egr code every once in awhile and as far as I know you have to get a new chip to prevent that (very easy change chips got a custom one made for 80ish all hooked and ready to go pm me and I can get you the guys name) the code doesn't effect drivablity in anyway
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Old Jul 24, 2013 | 02:02 AM
  #163  
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From: Walla Walla,WA
Car: 91 Firebird, 87 E'LS' Camino
Engine: 5.7 TPI, 5.3
Transmission: 700R4,200R4
Axle/Gears: 4.10 Lock Right locker/2.43
Re: 1LE / AC Delete / Smog Delete Pulley info

https://m.facebook.com/photo.php?fbi...66547&refid=17
That's with the hole bracket removed ac lines condeser and all that
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Old Jul 25, 2013 | 12:25 AM
  #164  
nuggie's Avatar
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From: Walla Walla,WA
Car: 91 Firebird, 87 E'LS' Camino
Engine: 5.7 TPI, 5.3
Transmission: 700R4,200R4
Axle/Gears: 4.10 Lock Right locker/2.43
Re: 1LE / AC Delete / Smog Delete Pulley info

https://m.facebook.com/photo.php?fbi...13113761847974 that's with the pumps gone one problem with the belt routing interfears with thermo housing any idea
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Old Aug 3, 2013 | 05:02 PM
  #165  
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From: Powder Springs, Georgia, USA
Car: 1992 Black Z28 Hardtop
Axle/Gears: 2002 10 bolt w/3:23
Re: 1LE / AC Delete / Smog Delete Pulley info

I've had my smog stuff off for ten tears with no codes thrown. I do not believe the ECM cares. I don't think there is a parameter for it.
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Old Nov 4, 2013 | 12:49 PM
  #166  
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From: Readsboro, VT
Car: 85 IROC-Z / 88 GTA
Engine: 403 LSx (Pending) / 355 Tuned Port
Transmission: T56 Magnum (Pending) / T5
Axle/Gears: 3.42 / ?
Re: 1LE / AC Delete / Smog Delete Pulley info

Originally Posted by 92BLKL98
I've had my smog stuff off for ten tears with no codes thrown. I do not believe the ECM cares. I don't think there is a parameter for it.
The ECM cares. When the ECM tells the smog pump to pump air into the exhaust, it changes the expected 02 sensor value by 100mv to compensate for the extra oxygen in the exhaust. When you eliminate the smog pump, you're preventing that extra oxygen from entering the exhaust, so the ECM's expected value winds up being incorrect. The result is that the ECU will think the car is lean and will add fuel to compensate.
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Old Nov 6, 2013 | 01:01 AM
  #167  
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Car: 1989 Iroc-Z Camaro
Engine: TBI,5.0
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Re: 1LE / AC Delete / Smog Delete Pulley info

What about the R-12 in the system. Is there a way to vent/remove what's in there yourself or is it off to a shop ?
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