A/C ON slows down performance

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Aug 12, 2004 | 07:37 PM

ofrankv10

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A/C ON slows down performance

I noted of late that with the A/C on - the V10 seems to be less responsive -- I would not think the A/C would reduce engine response to such a noteable degree - has any one else noticed this..

2004 F250 V10 Off Road 4x4 Flowmaster 70 K&N Air Filter

Aug 12, 2004 | 07:40 PM

boxcar1974

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From: Massachusetts

Oh sure. In every vehicle I have owned all of them had noticable loss in power and throttle response with the A/C on.

P.S. how do you like you FM 70 on your V10....I have the banks power pack and swapped out thier muffler for the FM 70

Aug 12, 2004 | 07:43 PM

HomerWinzlow

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From: Lawton, Oklahoma

It shouldnt on wide open throttle as the compressor cuts off on hard accelleration. The loads under normal driving should be minimal unless there is a compressor dragging from near catastrophic failure. The added loads are both mechanical and electrical. I would think the most noticable drop would be from a heavily loaded vehicle while cruising. In all things which produce power, you cant get something for nothing. You must sacrifice some power to carry a load.

Aug 13, 2004 | 05:25 AM

ofrankv10

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Well Boxcar 1974, I like the Flowmaster 70 - there is no noise in the cab and it seemed to improved my pulling power on mountain roads - not as loud as I thought it would be..had a 40 series on my old GMC pickup..Figure it will get a little louder after it has more wear and tear on it..

Just installed a K&N air filter - was running with A/C off and noticed the truck was shifting quicker and RPM readings had changed and to myself WOW what an improvement....howver, shortly afterwards I turned the A/C on...hahahaha- running with A/C most of time here in summer months- which prompted my question - I was surpised that it seem to pull the engine down so much - as you said, all of my vehicles show some degrade in get-up-and-go with A/C on - I really thought with the V10 engine it would be hardly noticeable..

For HomerWinzlow - truck only has 5th wheel hitch in bed....and everything considered - in O/D the trunk runs the same RPM's with a 5000 pound load as it does with only the hitch...my V10 engine really talks to me when I get on it - I love the truck. cheers

Aug 13, 2004 | 03:26 PM

Monsta

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From: Washington State

The AC button on my mini-van is like a turbo button.

If I need a quick pass or feel I'm lacking power, I hit the button....to turn it OFF!!

Aug 13, 2004 | 03:39 PM

ofrankv10

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Lol Funny Funny Funny!!! Turbo On - Turbo Off, I Can Live With That!!!! Cheers

Aug 13, 2004 | 03:41 PM

FTE Ken

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From: Enjoying the real world.

This is how I often describe gas chips and tuners to customers. I tell them to imagine turning off the air conditioner on a compact car going up a hill.