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Does heater affect performance? #161560 Apr 21, 6:10pm Apr 21, 6:10pm
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Does heater affect performance?
I notice that everytime I turn on my heater, my car feels like it looses power. If I'm at a stop and turn on the heater the car will immediately start idling higher. Is this to keep the engine at a certain temperature?
Shouldn't the heater not affect Performance in anyway? (The A/C is obviously not on...)

Is this normal?

Re: Heater affect performance? [Re: 5280vvti] #161561 Apr 21, 6:11pm Apr 21, 6:11pm
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yes it is normal, you have ABSOLUTELY nothing to worry about


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Re: Heater affect performance? [Re: My Sixth Gear] #161562 Apr 21, 6:16pm Apr 21, 6:16pm
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eric_h
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yup hes right^^^ the a/c is another story, THAT will reduce your power because it runs off the engines crank


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Re: Heater affect performance? [Re: eric_h] #161563 Apr 21, 6:17pm Apr 21, 6:17pm
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Re: Heater affect performance? [Re: CeLlYgT04] #161564 Apr 21, 6:23pm Apr 21, 6:23pm
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when the a/c is not on the OFF position, you lose power.


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Re: Heater affect performance? [Re: VSGTS14] #161565 Apr 21, 6:28pm Apr 21, 6:28pm
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thats what i ment


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Re: Heater affect performance? [Re: eric_h] #161566 Apr 21, 6:31pm Apr 21, 6:31pm
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Thanks for the replys guys, but why does the heater cause a reduction in power?

Re: Heater affect performance? [Re: 5280vvti] #161567 Apr 21, 6:39pm Apr 21, 6:39pm
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the heater doesnt, it just spins the fans and takes hot air from your engine bay. the a/c does when its on causue that f-er spins off the crank shaft to get going, your rpms are just going up a little to compensate for the heat removefd from the engine


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Re: Heater affect performance? [Re: eric_h] #161568 Apr 21, 7:57pm Apr 21, 7:57pm
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how about when you turn the front defroster on? I notice that the air is a lot cooler than normal. Is the AC running? because i like to drive with it on to cool my feet.

Re: Heater affect performance? [Re: ironracer4130] #161569 Apr 21, 8:04pm Apr 21, 8:04pm
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I seem to get better gas milage if i turn my heater off...

Maybe its all mental though confused thumbsup


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Re: Heater affect performance? [Re: GTSbyTRD] #161570 Apr 22, 3:05pm Apr 22, 3:05pm
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yes your a/c is running with you defreoster.

also how can the defroster cool yoru feet

it blows on the dash unles syou ahve it on defrost and heat then it will blow top and bottom of dash


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Re: Heater affect performance? [Re: Krayze] #161571 Apr 22, 3:46pm Apr 22, 3:46pm
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^ You mean the a/c runs even when the A/C light isn't on confused spineyes

Re: Heater affect performance? [Re: 5280vvti] #161572 Apr 22, 4:20pm Apr 22, 4:20pm
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no the deforster is just a fan that blows air over the dash, not the a/c, the a/c is a separate unit in itself


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Re: Heater affect performance? [Re: eric_h] #161573 Apr 22, 7:41pm Apr 22, 7:41pm
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wrong as off a few years ago all new cars defrosters use the a/c not at full blkast but if you use your fornt defroesters your a/c is running.

it is because teh a/c helps take the misture out of the air thus defrosting ou windows.

yes it is even running when you have it on hot in the winter. go ask any mechanic who works on new cars,


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Re: Heater affect performance? [Re: Krayze] #161574 Apr 22, 8:24pm Apr 22, 8:24pm
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simply your engine is fighting for electricity...

Re: Heater affect performance? [Re: My Sixth Gear] #161575 Apr 22, 8:50pm Apr 22, 8:50pm
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Chino Hills, CA
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Originally Posted by My Sixth Gear
yes it is normal, you have ABSOLUTELY nothing to worry about

Re: Heater affect performance? [Re: DaBigTickett] #161576 Apr 22, 9:07pm Apr 22, 9:07pm
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As someone said even if your A/C button is off and you use the defroster your a/c starts running. Its quite obvious when the air coming out is very cold yet the A/C button is off. I'm glad someone mentioned that because I wasn't sure if i was losing it.


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Re: Heater affect performance? [Re: Celicatastrophe] #161577 Apr 23, 10:12am Apr 23, 10:12am
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yeah that's what i meant. i leave the knob on the second to last one on the right, where it shoots air from the top of the dash and the bottom so it cools my feet. im the type of person that does't wear shoes when i drive.Yeah, i always thought that the ac was running with the light off but wasn't sure either. now i know, thanks. thumbsup

Re: Heater affect performance? [Re: ironracer4130] #161578 Apr 23, 11:27am Apr 23, 11:27am
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Thanks for all the replys guys, it all makes sense now smile

Re: Heater affect performance? [Re: 5280vvti] #161579 Apr 23, 11:46am Apr 23, 11:46am
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i know a lot of ppl turn on their heater when racing for some reason. is that just something stupid or do they do it for a reason?

Re: Heater affect performance? [Re: stefanoc] #161580 Apr 23, 11:48am Apr 23, 11:48am
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Originally Posted by stefanoc
i know a lot of ppl turn on their heater when racing for some reason. is that just something stupid or do they do it for a reason?


I do it before a race. It lets out a lot of the hot air, since the car is producing so much more of it.

Re: Heater affect performance? [Re: 5280vvti] #161581 Apr 23, 2:24pm Apr 23, 2:24pm
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OK now fer the truth about heaters...


You will not lose power while running it how it werks is by taking hot water from yer cooling system and runnin it through a heater core in the dash, cabin air is moved by a blower motor that is shared by the heater core and the evaporator for the a/c , The fans on the condensor and radiator only come on when the a/c is on or when the temp sensor on the radiator is tripped. the reason racers run the heater is it adds more engine cooling.


So the answer is NO it does not rob horsepower.


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Re: Heater affect performance? [Re: CID498] #161582 Apr 23, 8:47pm Apr 23, 8:47pm
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guess i learned something rice


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