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DISCUSSION => Engine + Driveline => Topic started by: laernu on July 22, 2009, 03:39:51 PM

Title: Taking A/C out
Post by: laernu on July 22, 2009, 03:39:51 PM

Would anyone know how much power i would get out of i took everything out that belongs to the A/C like the Condensor the Pump hose and all those GOODIES! :) i dont really need an exact amount but just an estimate and i know its not a honda where they gain like 20HP extra just from that crap but i have a 91 BMW 318Is

Title: Taking A/C out
Post by: doitover on July 23, 2009, 12:10:45 PM

You will save some weight but when the AC is off all the engine is pulling is the pulley. hard to imagine that takes much power.

You can't take off too much weight and the compressor, condensor, and aux fan together do weigh a bit.

Title: Taking A/C out
Post by: DesktopDave on July 23, 2009, 12:18:59 PM

I'll bet you could drop an easy 40-50 pounds with removing the compressor & condenser.  I don't know how many HP that equates to, but pulling that weight out of the nose would definitely help handling.  Can't beat the price either.

Title: Taking A/C out
Post by: laernu on July 23, 2009, 12:20:46 PM

Alright cool thanks

Title: Taking A/C out
Post by: 318lotis on July 23, 2009, 12:29:30 PM

im planning on pulling mine also , let us know the steps you take, what about defrost not working?

Title: Taking A/C out
Post by: Voluted on July 23, 2009, 01:11:24 PM

The AC system has nothing to do with defrosting anything.

Title: Taking A/C out
Post by: 1991 E30 M42 on July 23, 2009, 08:48:07 PM

mine is gone and so is my p/s, a/c would be nice in the summer months around here but i can deal with it

Title: Taking A/C out
Post by: laernu on July 24, 2009, 09:02:34 AM

i never used my A/C till the day i blew my head gasket so screw A/C lol

Title: Taking A/C out
Post by: 318lotis on July 24, 2009, 03:58:09 PM

hey lanernu,  was it easy to dissasemble the ac and parts, anything special i need to do?

Title: Taking A/C out
Post by: laernu on July 24, 2009, 04:24:19 PM

havnt started on it yet waiting for my $200 head gasket..... to come in today so i can begin puttin the shit back together and then imma take out the condensor and the pump etc... ill let you know what gets hard and how i did it lol..

Title: Taking A/C out
Post by: laernu on July 25, 2009, 01:40:25 PM

Taking out the A/C was simple, first empty out the Free-On thats in the A/C (Note that this is illegal as it puts holes in the O-Zone lol) but i did it anyways then Detatch that hose that holds the free-on off the Compressor once thats off theirs a wire on the Compressor which we yanked... the next thing is to take out the Condensor which was simple you'll be able to do that by just looking at it lol

Title: Taking A/C out
Post by: 318lotis on July 25, 2009, 02:31:46 PM

thanx mate

Title: Taking A/C out
Post by: 91 318is on July 25, 2009, 07:31:00 PM

Quote from: laernu;75847

Taking out the A/C was simple, first empty out the Free-On thats in the A/C (Note that this is illegal as it puts holes in the O-Zone lol) but i did it anyways then Detatch that hose that holds the free-on off the Compressor once thats off theirs a wire on the Compressor which we yanked... the next thing is to take out the Condensor which was simple you'll be able to do that by just looking at it lol

Freon btw.

Also, take extra precaution when evacuating the A/C system, wear eye protection because if you get freon in your eye, it will blind you.

Title: Taking A/C out
Post by: 318lotis on July 27, 2009, 10:27:07 PM

How much weght do you reckon you from front end ??

Title: Taking A/C out
Post by: iamcreepingdeath on August 01, 2009, 03:14:15 PM

i'm thinking of ditching my AC, because my compressor is seized so the belt has been taken off, and i have no money to get a new compressor, so now all my AC is is dead weight.

I recently sold an AC system to someone on R3V and packaged up it weighed about 45 lbs.

Title: Taking A/C out
Post by: laernu on August 01, 2009, 06:28:01 PM

i heard that we get about +10Hp when you take out everything that belongs to the A/C

Title: Taking A/C out
Post by: JP 91iS on August 02, 2009, 01:15:49 AM

Quote from: laernu;76218

i heard that we get about +10Hp when you take out everything that belongs to the A/C

+10 hp sounds a bit high from just deleting the a/c.  Sure you remove a belt driven accessory and about 40 pounds of weight, but do the non-ac M42 E30s come with 10 extra HP from the factory?

Title: Taking A/C out
Post by: M42_Jester on August 02, 2009, 04:27:35 AM

when u think about it, ur not actually gaining any power at all. your only utilising power, that your engine already has, better. but you feel a lil bit more with the weight decrease. all in all i think it would be worth it...but not for me. gets to hot in my part of the world to not have A/C

Title: Taking A/C out
Post by: xwill112x on August 02, 2009, 12:07:02 PM

LOL there are no horsepower gains.

it only kills your horsepower when you turn it on.


and everything weighed up to be like 28 pounds, so it really isn't that big on weight savings either.

my a/c works very well, and im going to keep it that way ;)

Title: Taking A/C out
Post by: laernu on August 02, 2009, 10:13:25 PM

AC just puts stress on the Engine when you turn it on your car REV's up higher cause it needs more power to use it im guessing, soo deleting it takes weight out not much but good enough for me seeing how AC caused me to overheat my car and blow my head gasket.... First time i used it, last time i ever will