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bypass a/c?

Old Mar 28, 2011 | 10:06 PM
  #1  
1991birdkid's Avatar
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bypass a/c?

hi im new to the forum and i just recently started doing engine work i took out my a/c but now im having trouble finding a belt to bypass a/c does anyone know about this bypass process that can help me out.
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Old Mar 29, 2011 | 02:16 AM
  #2  
skibum2100's Avatar
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From: Boulder Colorado
Car: 1988 GTA
Engine: 5.7 TPI w/ Bosch III's
Transmission: T56
Axle/Gears: 3.27 Borg Warner 9 bolt
Re: bypass a/c?

When I bypassed my a/c, I had to replace the a/c compressor with a pulley assembly made by Motormite (just a bearing and a pulley) and keep the original belt.

Put down some of your car's information to help us out.
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Old Mar 29, 2011 | 09:46 AM
  #3  
camaronewbie's Avatar
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From: Cary, North Carolina
Car: 1992 RS
Engine: Carbed 350
Transmission: 700R4
Axle/Gears: 3.42 posi
Re: bypass a/c?

Welcome to TGO!

This tech article describes removing the smog pump on a serpentine belt car, same thing really. Please note the diagram showing the belt routing - your water pump is a reverse rotation water pump, and thus HAS to have the belt turning it the right direction. You should be able to route a new belt the same as in this article, your just removing A/C rather than smog pump. As mentioned, you might have to get a delete pulley, usually available at NAPA if you have one locally for about $30 something - but I'm not sure it's necessary.

www.thirdgen.org/serpentine
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Old Mar 29, 2011 | 11:51 AM
  #4  
1991birdkid's Avatar
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Re: bypass a/c?

is there a way to eliminate the smog and the a/c? somebody told me it will give me alot more power im also going to eliminate the water pump with a electric one is this possible?
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Old Mar 29, 2011 | 12:14 PM
  #5  
skibum2100's Avatar
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Joined: May 2010
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From: Boulder Colorado
Car: 1988 GTA
Engine: 5.7 TPI w/ Bosch III's
Transmission: T56
Axle/Gears: 3.27 Borg Warner 9 bolt
Re: bypass a/c?

Where there is a will...there is a way. If you don't have an emission inspection or an emission test where you live then you can consider this, but the gains are probably going to be minimal.

If it ain't broke, don't fix it.

Start with replacing the a/c compressor with a bypass assemply (cheap) and see if you are happy.

As for the water pump...the water pump's electric load on the alternator and consequently the engine is almost identical to the old water pump's mechanical load on the engine. Gains may again be noticed but they will probably be minimal.

That being said eventually all these "little" gains do add up to a real number.
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Old Mar 29, 2011 | 01:09 PM
  #6  
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From: Cary, North Carolina
Car: 1992 RS
Engine: Carbed 350
Transmission: 700R4
Axle/Gears: 3.42 posi
Re: bypass a/c?

Electric water pumps are not designed for daily driven cars - they are designed for track use. They are also not designed to help add power by reducing belt-operated appliances, they were developed in the interest of not having belts to fly off the car at high rpms. Track cars have no power steering, no A/C, no smog pumps - only thing left is alternator - and it hurts nothing in that 1/4 mile for the alternator to lose it's belt. So unless you are building a track-only car, electric w/p is yet another waste of cash that your car desperately needs elsewhere.

The ONLY way to eliminate smog and A/C on a serpentine belt car is to use a pulley delete for one or the other, doesn't matter which. There's no way to route a belt without either one or the other component there (or a delete pulley).
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