AC delete? Was Wondering how much more HP i would get without it...It isnt working anymore...yes i recharged it and nothing...i live in good ole michigan so i dont use it ever except for about 2 weeks so just wondering if anyone has any idea what i would gain from this

 

just take the pump part...... works great

 

whats this "gm tune" for the l61 you speak of?

 

I am Irish and live in the south, I would die without a/c.. LOL. Side note you may free up 5HP... ish.

 

same here(irish as well) lol but i live in florida where the humidity is a *****...if ac breaks and i can't fix it I will trade this bastard in

 

I lived in the desert(Arizona) with no AC and a black car, didn't need to work out just went to the suana called my car.

 

Exactly... The only car I dont care about a/c is my track car(cb7)...

 

A good friend of mines fathers job at GM is to reflash computers for emissions...Soooo he talk to his buddies at the GM proving grounds and asked what kind of stuff could they add to my computer or take away to give it a litle more pep...it wasnt easy...it took like 4 differant times to reflash to actually work because comewhere in the code it would mess up and not finish so we would have to reflash the original back....so he messed with the pe delay...took off the stupid 105 gov and did some other **** that he was trying to explain...i work tho cuz i raced my buddy that has the same mods and pulled on him pretty bad...oh and it was allll free!!!!

 

What is the point of pulling the pump apart? I pulled mine off today as I was going to do it but really, it freewheels independent of the ac pump motor so I don't see how it gains anything.

 

what the hell does irish gotta do with AC?
not a damn thing, white ppl like the cold
plain and simple. ^_^

 

haha sure....

 

you wont gain any HP...it spins freely when its not used. All you would lose is some weight.

just keep defrost and AC off and its fine

 

Not worth it and pointless honestly.

And 5hp? thats overly optimistic. Most ac compressors when the clutch isnt engaged spin fairly freely. So maybe 1hp tops!

 

its not so much about hp gains, but being able to rev the engine faster.

https://www.cobaltss.net/forums/2-2l...estion-253707/

 

and judging by the vid's you've posted of yours, it revs pretty damn quick.

But if you're not building a monster of a drag car, leave the AC in your car. It would be a larger pain to remove, and more costly for a custom length belt then what you might save.

 

theres also a 25lb weight savings.

 

in the end, again if not racing. No point

 

25lbs honestly means nothing on the street.
And honestly if you want your engine to rev quicker then change out the balanceshafts go with a lightweight flywheel and do internal engine work.

On a street driven ls cobalt theres absolutely no need to remove the a/c.
Also current a/c compressors can usually spin a few revolutions just with a simple spin of the hand. They dont have a lot of resistance.

So the facts posted wont matter unless your building a race car. And honestly if thats the case then you have a lot more ahead than just deleting the a/c!

 

well ZZP has a AC delete bracket and pulley and just buy a belt that non AC cobalts come with

 

yeah looks like this.



thats what i'm running. fidanza flywheel, zzp stage 4+ with sachs pressure plate, no balance shafts, no a/c, electric water pump. and the ac compressor has about one free turn in it before it stops, two MAX with a good spin. they actually do have a lot of resistance.

 

To each ones own, If I don't just pull it off entirely next time around I'll gut the sucker as the condensor and tubing is already off. 25lbs off the front end is 25lbs off the front end. Up north where I live now AC is redundant, zero humidity and a cool breeze off lake Superior.

 

Hmm, any way to make that work with an M62?

 

not sure, i went turbo so nothing is up there now.

 

Not trying to argue or derail this thread but thats what i do all day long is sell a/c system and do tech calls on them. Most of the new compressors we send out with exception to some of the remans all spin at least 2-3 revolutions. Granted this sometimes depends on if they are piston or scroll type compressors. But most of them really dont have that much resistance when the clutch is disengaged.

And your setup explains why your engine revs so quickly and freely. But on a 2.2 there's many other areas to improve upon first before removing an item such as the a/c system which can and will devalue the car even more than just being a cobalt will do. Not to mention potentially contaminate the system which would make future reinstall more difficult.

I just honestly dont recommend it. When I was younger I ripped a ton of a/c systems off cars. Never felt much difference if any. Though the engine bays looked much cleaner. But that was about it. Then I was left suffering without a/c and reinstalling it was far more effort than removing it

I realize the op's doesnt currently work. But I think hes just making more work for himself down the road or making it harder to sell the car down the road.

 

You have to disassemble the Compressor, like Spike pictures above. Aside from fabricating an idler pulley to go in its place, that's the only way to do it when S/C'd, iirc.

Turbo or N/A can just completely delete the pump and throw on the shorter, non-A/C belt.