A/C delete

maicol76 · 06-11-2016, 11:56 AM

Hi guys~

Is it possible to delete A/C ?

a/c bypass pulley by Dorman?...something I found but nothing for european cars.

jphughan · 06-11-2016, 05:51 PM

You could just....turn it off. AC delete is usually for weight savings, but a bypass pulley isn't going to help you there.

bigjae1976 · 06-12-2016, 08:14 PM

Actually, you delete the A/C to improve cooling. The condenser blocks the radiator and heats up the air before it hits the radiator. There is a significant benefit.

Kind of pointless unless you remove the condenser.

maicol76 · 06-12-2016, 11:32 PM

Thanks for advice, guys~

Ultimately, A/C delete is needed for track only car.
But, pulley, shoter belt or some kinds of kits are not shown on internet.

Racing teams make parts for a/c delete, individually?

warp10 · 06-13-2016, 01:53 PM

Quote:

Originally Posted by maicol76

Thanks for advice, guys~

Ultimately, A/C delete is needed for track only car.
But, pulley, shoter belt or some kinds of kits are not shown on internet.

Racing teams make parts for a/c delete, individually?

Would like to know as well.....!!!!

Richbot · 06-13-2016, 02:12 PM

Quote:

Originally Posted by maicol76

Thanks for advice, guys~

Ultimately, A/C delete is needed for track only car.
But, pulley, shoter belt or some kinds of kits are not shown on internet.

Racing teams make parts for a/c delete, individually?

Good luck with that if you couldn't find this info on your own, but AC is separate tensioner, pulley and belt on most BMW's including this one. Just remove the whole system and use whatever crank pulley of your choice OEM or otherwise and leave the ribs driving the AC belt empty

http://www.realoem.com/bmw/enUS/show...diagId=11_4120

warp10 · 06-16-2016, 07:34 AM

Quote:

Originally Posted by Richbot

Quote:

Originally Posted by maicol76

Thanks for advice, guys~

Ultimately, A/C delete is needed for track only car.
But, pulley, shoter belt or some kinds of kits are not shown on internet.

Racing teams make parts for a/c delete, individually?

Good luck with that if you couldn't find this info on your own, but AC is separate tensioner, pulley and belt on most BMW's including this one. Just remove the whole system and use whatever crank pulley of your choice OEM or otherwise and leave the ribs driving the AC belt empty

http://www.realoem.com/bmw/enUS/show...diagId=11_4120

I don't not believe this 100% correct. But I believe the power steering and AC compressor are on the same belt. this diagram is for a 09+ car but it shows what I am talking about. It is from AA power pulley installation guide.

I have also attached the pre 09 cars. which might just be able to change belts size, but on the 09+ the PS pump goes the other way.

warp10 · 06-16-2016, 07:37 AM

pre 09 belt

jakob66 · 06-22-2016, 02:45 PM

Quote:

Originally Posted by warp10

pre 09 belt

Question.
Shortcut the condenser lines and take condenser out?
Will the AC compressor survive w/o condenser?
Any other issues with this 'solution' ?
That would be the quickest way to increase cooling power of existing radiator.
Anybody any experience with that?
Thanks

warp10 · 06-22-2016, 02:49 PM

Quote:

Originally Posted by jakob66

Quote:

Originally Posted by warp10

pre 09 belt

Question.
Shortcut the condenser lines and take condenser out?
Will the AC compressor survive w/o condenser?
Any other issues with this 'solution' ?
That would be the quickest way to increase cooling power of existing radiator.
Anybody any experience with that?
Thanks

what I am doing is taking the condenser out and "looping" the compressor lines that run into the condenser. the AC doesn't run but the compressor does even with the ac off. basically the loop is to keep the AC compressor oil in place, which it shouldn't come out even if not looped.

I will post pics here if the solution I am working with next week.

maicol76 · 06-23-2016, 03:47 AM

Quote:

Originally Posted by warp10

pre 09 belt

Thanks for good advice

Is it possible that PS pump runs in reverse?

Richbot · 06-23-2016, 08:27 AM

Quote:

Originally Posted by warp10

I don't not believe this 100% correct. But I believe the power steering and AC compressor are on the same belt. this diagram is for a 09+ car but it shows what I am talking about. It is from AA power pulley installation guide.

I have also attached the pre 09 cars. which might just be able to change belts size, but on the 09+ the PS pump goes the other way.

Derp you're right

A shorter belt looks like it might do the trick though

jakob66 · 07-29-2016, 09:29 PM

Quote:

Originally Posted by warp10

what I am doing is taking the condenser out and "looping" the compressor lines that run into the condenser. the AC doesn't run but the compressor does even with the ac off. basically the loop is to keep the AC compressor oil in place, which it shouldn't come out even if not looped.

I will post pics here if the solution I am working with next week.

Hey warp
Any luck with the 'looping' of the condenser lines?
Does it work? Can you post pictures?
Thanks!

warp10 · 07-30-2016, 12:33 PM

Quote:

Originally Posted by jakob66

Hey warp
Any luck with the 'looping' of the condenser lines?
Does it work? Can you post pictures?
Thanks!

Yes did have success in looping line. I will post pics once i am back in town.
Basically you are taking out the Freon, then the condenser, then looping the in/out line of the a/c line....hope that makes sense.

Works great on track and only issue is some time it might throw a CEL since the ECU looks at the AC pressure to see if everything is working. no power pull or any side effects noticed.

Seems to have freed up some cooling to the radiator. But I am still going to seal up the air flow to the radiator to improve cooling.

06-11-2016, 11:56 AM	#1
maicol76 First Lieutenant 194 Rep 305 Posts Drives: E92 M3 Join Date: Oct 2011 Location: CA, Santa fe iTrader: (0)	A/C delete Hi guys~ Is it possible to delete A/C ? a/c bypass pulley by Dorman?...something I found but nothing for european cars.
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06-11-2016, 05:51 PM	#2
jphughan Brigadier General 594 Rep 4,488 Posts Drives: '16 Cayman GT4 Join Date: Mar 2011 Location: Austin, TX iTrader: (0)	You could just....turn it off. AC delete is usually for weight savings, but a bypass pulley isn't going to help you there. __________________ '16 Cayman GT4 (delivery pics, comparison to E92 M3 write-up) Gone but not forgotten: '11.75 M3 E92 Le Mans \| Black Nov w/ Alum \| 6MT (owned 5/2011 - 11/2015)
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06-12-2016, 08:14 PM	#3
bigjae1976 Major General 1570 Rep 8,075 Posts Drives: 11 E90 M3 Individual Join Date: Mar 2006 Location: Houston, TX iTrader: (22) Garage List 2004 BMW M3 [4.50] 2011 BMW E90 M3 [5.25] 2013 BMW 328i [5.00]	Actually, you delete the A/C to improve cooling. The condenser blocks the radiator and heats up the air before it hits the radiator. There is a significant benefit. Kind of pointless unless you remove the condenser. __________________ 2018 F30 320iX Melbourne Red 2011 E90 M3 Monte Carlo Blue 2004 E46 M3 Imola Red 2000 E36/7 Z3 Steel Blue
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06-12-2016, 11:32 PM	#4
maicol76 First Lieutenant 194 Rep 305 Posts Drives: E92 M3 Join Date: Oct 2011 Location: CA, Santa fe iTrader: (0)	Thanks for advice, guys~ Ultimately, A/C delete is needed for track only car. But, pulley, shoter belt or some kinds of kits are not shown on internet. Racing teams make parts for a/c delete, individually?
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06-16-2016, 07:37 AM	#8
warp10 Lieutenant Colonel 776 Rep 1,718 Posts Drives: 2011 M3 Jet Black:ZCP, ZCV, ZP Join Date: May 2011 Location: Atlanta, Ga iTrader: (7) Garage List 2011 M3 [10.00] 2011 28i X3 [0.00]	pre 09 belt Attached Images __________________
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