Does anyone know why our engine bay gets so hot?

FromTheOld · Joined: 22 Jul 2008 Posts: 70

EDIT: I already got my answer guys, there's no need to respond anymore. Thanks to all who gave me actual answers.

ack154 · Posted: 9/4/08 6:53AM Post subject:

It's cause the engine is in there! :silly:

My guess is that it's b/c the exhaust comes out the front and the heat doesn't always dissipate through the bottom of the engine bay.

AAG · Joined: 25 May 2007 Posts: 864 Location: Dallas, TX

Is it over heating? How did you determine it's running so "hot". All cars run hot because that's what there operating temperature should be at.

Unless your needle is past the half way mark I wouldn't worry too much. Just make sure the coolant is full and you don't have debris blocking the upper or lower grilles. If you're still worried, buy some washers and extended bolts and lift the rear of the hood to let some of the heat out.

xB_Crew · Posted: 9/5/08 7:37AM Post subject:

its a fine line for manufacturers.. hotter equals better MPG's, but less performance.. in todays market MPG's wins...

draxcaliber · Joined: 20 Sep 2006 Posts: 7681 Location: Maryland

wow...that is am amazingly stupid question...and the thing is, they really don't get that hot. go stand next to my bro's mercedes cls550 and see how much heat that thing puts out while idling.

engines get hot because all they do is explode gas and air over and over again, so they get hot quickly, they are supposed to get hot, but not too hot, that is what the radiator is for.

ShaffNasty · Posted: 9/5/08 8:48AM Post subject:

^ wow... The guys asks a simple question and you insult him... classy! and your bros mercedes will kick off more heat cuz it is a bigger engine (v8?)...

FromTheOld · Joined: 22 Jul 2008 Posts: 70

draxcaliber wrote: wow...that is am amazingly stupid question...and the thing is, they really don't get that hot. go stand next to my bro's mercedes cls550 and see how much heat that thing puts out while idling.

engines get hot because all they do is explode gas and air over and over again, so they get hot quickly, they are supposed to get hot, but not too hot, that is what the radiator is for.

Thanks a-hole, that is "am" amazingly useless response. Compared to my other car's engine, it's very hot or at least it SEEMS very hot compared to it. It wasn't something retarded like "why isn't it as cold as a refrigerator". I know this is a public topic, but could you consider not responding to this thread anymore? I don't need anymore useless garbage from you.

BBN-Boys · Joined: 04 Jul 2008 Posts: 261

Cool down guys. No pun intended….

That's a very good question. I noticed that too. After placing my hand on the hood after a nice ride, the hood gets really hot. If you ever been under the car, all those plastic engine covers underneath don't help with releasing the heat or bringing cold air in either.

ShaffNasty · Posted: 9/5/08 12:48PM Post subject:

Ya the engine bay is pretty sealed up... I heard about this thing called the "ZIO mod" and he says it works AMAZING...

jthistle · Joined: 16 Feb 2007 Posts: 88 Location: Chicago, IL

The engine does not get too hot. I have a ScanGaugeII and it reads my coolant temp as 190 F during normal driving.

Big_Bird · Joined: 09 Apr 2005 Posts: 5214 Location: North NJ / PSU

It's because scion owners are so sexy

qbano239 · Joined: 31 Oct 2007 Posts: 28 Location: Florida

most engines with exhaust coming out of the front get real hot. both my tc and my integra get super hot

BBN-Boys · Joined: 04 Jul 2008 Posts: 261

Big_Bird wrote: It's because scion owners are so sexy

BEST reason so far!!!! Totally true. :silly:

draxcaliber · Joined: 20 Sep 2006 Posts: 7681 Location: Maryland

FromTheOld wrote: draxcaliber wrote: wow...that is am amazingly stupid question...and the thing is, they really don't get that hot. go stand next to my bro's mercedes cls550 and see how much heat that thing puts out while idling.

engines get hot because all they do is explode gas and air over and over again, so they get hot quickly, they are supposed to get hot, but not too hot, that is what the radiator is for.

Thanks a-hole, that is "am" amazingly useless response. Compared to my other car's engine, it's very hot or at least it SEEMS very hot compared to it. It wasn't something retarded like "why isn't it as cold as a refrigerator". I know this is a public topic, but could you consider not responding to this thread anymore? I don't need anymore useless garbage from you.

hey i turned on a light, and i noticed that it too got hot! and then turned on the stove, and it got hot, and then i boiled some water, and it as hot too, does anybody notice this?

ask a stupid question, get an appropriate answer. i'm pretty sure there are little warning stickers under your hood telling you not to touch things that get hot. it is supposed.

kikcaffine · Joined: 21 Mar 2005 Posts: 1657 Location: Norcross

FromTheOld wrote: draxcaliber wrote: wow...that is am amazingly stupid question...and the thing is, they really don't get that hot. go stand next to my bro's mercedes cls550 and see how much heat that thing puts out while idling.

engines get hot because all they do is explode gas and air over and over again, so they get hot quickly, they are supposed to get hot, but not too hot, that is what the radiator is for.

Thanks a-hole, that is "am" amazingly useless response. Compared to my other car's engine, it's very hot or at least it SEEMS very hot compared to it. It wasn't something retarded like "why isn't it as cold as a refrigerator". I know this is a public topic, but could you consider not responding to this thread anymore? I don't need anymore useless garbage from you.

Hey spanky, I bet its exactly the same temperature if not actually colder than what ever your other car is. Truth to the matter is Toyota engines typically run cold. Where most domestic cars run at about 210degrees, the tC is at 180. I feel that I should tell you though, if you feed your engine ice cream it will stay cold and happy.

Metro273 · Posted: 9/5/08 7:02PM Post subject:

That's what I like about you Drax, you tell 'em straight up! No BS... :clap:

FromTheOld · Joined: 22 Jul 2008 Posts: 70

I already got my answer many posts ago from the guy with the Scan Gauge. You guys really don't need to reply anymore unless you're just attempting to make yourself feel better by insulting me.

coryjames · Joined: 28 Jul 2007 Posts: 3944 Location: arvada co

FromTheOld wrote: Is there any specific reason why? Is the cooling system sufficient enough, or does it need help, like the use of a radiator block-off plate?

lol i have alot more heat being generated in my bay then most huge manifold huge turbo a intercooler blocking radiator all that great kinda stuff my water tems never get over 210 with the ac on thats at a long stop say 30 mins with the car running my intake temps have seen 250 a few times second i start driving again it gets fine want to know a tip to keep it a little cooler open the hood take out the weather strip on the back give the air some where to go it will help alot

xseveredveganx

coryjames wrote: FromTheOld wrote: Is there any specific reason why? Is the cooling system sufficient enough, or does it need help, like the use of a radiator block-off plate?

lol i have alot more heat being generated in my bay then most huge manifold huge turbo a intercooler blocking radiator all that great kinda stuff my water tems never get over 210 with the ac on thats at a long stop say 30 mins with the car running my intake temps have seen 250 a few times second i start driving again it gets fine want to know a tip to keep it a little cooler open the hood take out the weather strip on the back give the air some where to go it will help alot

^^^old school hot rod tip right there.