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Engine compartment heat by 85fieroguy
Started on: 11-04-2015 09:11 PM
Replies: 18 (505 views)
Last post by: olejoedad on 11-06-2015 08:34 PM
85fieroguy
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Report this Post11-04-2015 09:11 PM Click Here to See the Profile for 85fieroguySend a Private Message to 85fieroguyEdit/Delete MessageReply w/QuoteDirect Link to This Post
Outside temp..72*..drove for 35 minutes at 65 MPH, then 15 minutes at 40 MPH..then stopped. Rear engine compartment on the 85GT with a stock V-6.....temp ....150*
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Thunderstruck GT
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Report this Post11-04-2015 09:12 PM Click Here to See the Profile for Thunderstruck GTSend a Private Message to Thunderstruck GTEdit/Delete MessageReply w/QuoteDirect Link to This Post
And?
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85fieroguy
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Report this Post11-04-2015 09:34 PM Click Here to See the Profile for 85fieroguySend a Private Message to 85fieroguyEdit/Delete MessageReply w/QuoteDirect Link to This Post
and what ?? Guess you didn't see the previous posts and interest in engine compartment heat.
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Gall757
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Report this Post11-04-2015 09:49 PM Click Here to See the Profile for Gall757Send a Private Message to Gall757Edit/Delete MessageReply w/QuoteDirect Link to This Post
It would make sense to post this on your original post.....no?
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dobey
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Report this Post11-04-2015 09:51 PM Click Here to See the Profile for dobeySend a Private Message to dobeyEdit/Delete MessageReply w/QuoteDirect Link to This Post
Yeah, why start a new thread to comment on a previous thread? Just comment on the previous thread.
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fireboss
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Report this Post11-05-2015 12:50 AM Click Here to See the Profile for firebossClick Here to Email firebossSend a Private Message to firebossEdit/Delete MessageReply w/QuoteDirect Link to This Post
I just wanted to remind you these engines are engineered to operate at higher temps then a standard front mounted drivetrain.
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css9450
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Report this Post11-05-2015 07:51 AM Click Here to See the Profile for css9450Click Here to Email css9450Send a Private Message to css9450Edit/Delete MessageReply w/QuoteDirect Link to This Post
 
quote
Originally posted by 85fieroguy:

and what ?? Guess you didn't see the previous posts and interest in engine compartment heat.


Link to other thread please.... I don't see it.

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Gall757
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Report this Post11-05-2015 09:05 AM Click Here to See the Profile for Gall757Send a Private Message to Gall757Edit/Delete MessageReply w/QuoteDirect Link to This Post
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olejoedad
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Report this Post11-05-2015 10:05 AM Click Here to See the Profile for olejoedadClick Here to Email olejoedadSend a Private Message to olejoedadEdit/Delete MessageReply w/QuoteDirect Link to This Post
 
quote
Originally posted by fireboss:

I just wanted to remind you these engines are engineered to operate at higher temps then a standard front mounted drivetrain.


What special high heat components did GM engineer and install on the Fiero that backs up this statement?


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Gall757
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Report this Post11-05-2015 10:13 AM Click Here to See the Profile for Gall757Send a Private Message to Gall757Edit/Delete MessageReply w/QuoteDirect Link to This Post
trunk blower and heat shields?.....
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dobey
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Report this Post11-05-2015 10:20 AM Click Here to See the Profile for dobeySend a Private Message to dobeyEdit/Delete MessageReply w/QuoteDirect Link to This Post
 
quote
Originally posted by Gall757:

trunk blower and heat shields?.....


Has nothing to do with engine operating temperature. Front engined vehicles also have heat shields. The blower was to help remove some ambient heat from the coil and alternator areas.
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Report this Post11-05-2015 11:08 AM Click Here to See the Profile for firebossClick Here to Email firebossSend a Private Message to firebossEdit/Delete MessageReply w/QuoteDirect Link to This Post
 
quote
Originally posted by olejoedad:


What special high heat components did GM engineer and install on the Fiero that backs up this statement?



Nothing magical or sci/fi..the heat issue was considered very highly.The addition of rear vents,diff thermostat/and switch,addition of trunk blower to cool alternators as well as distributors,two speed radiators fan,the extensive use of heat shields,the ecms were callbrated for a higher operating temp mainly for air/fuel ratio mix.

The diff and ways to cool the engine and other systems were very well planned for during the car pre and production run.
They evolved there schools of thoughts on the heat issues.And changed according to there findings.

No big conspiracy there,the car just tends to run hotter than most of there similar front wheel drivetrains.Not trying to ruffle anyones feathers.
The engine doesn't have any super duper highly top secret parts or metals.

And as you should know,new people to the FIERO madness become alarmed at how hot the rear compartment/hood is.They will become alarmed and think bout to loose the engine.
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85fieroguy
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Report this Post11-05-2015 05:08 PM Click Here to See the Profile for 85fieroguySend a Private Message to 85fieroguyEdit/Delete MessageReply w/QuoteDirect Link to This Post
EXCELLENT FIREboss. That is a very professional insight. Thanks for the info.
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dobey
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Report this Post11-06-2015 01:32 PM Click Here to See the Profile for dobeySend a Private Message to dobeyEdit/Delete MessageReply w/QuoteDirect Link to This Post
 
quote
Originally posted by fireboss:
Nothing magical or sci/fi..the heat issue was considered very highly.The addition of rear vents,diff thermostat/and switch,addition of trunk blower to cool alternators as well as distributors,two speed radiators fan,the extensive use of heat shields,the ecms were callbrated for a higher operating temp mainly for air/fuel ratio mix.

The diff and ways to cool the engine and other systems were very well planned for during the car pre and production run.
They evolved there schools of thoughts on the heat issues.And changed according to there findings.

No big conspiracy there,the car just tends to run hotter than most of there similar front wheel drivetrains.Not trying to ruffle anyones feathers.
The engine doesn't have any super duper highly top secret parts or metals.

And as you should know,new people to the FIERO madness become alarmed at how hot the rear compartment/hood is.They will become alarmed and think bout to loose the engine.


Why do front engined cars have extractor vents in hoods, insulation, and heat shields then? Or two speed electric fans?

The Fiero doesn't run any hotter than most front engine GM vehicles. They're all designed to operate in the same temperature range. The only difference between the calibration in the ECM for the Fiero 2.8, and most all other 2.8 ECMs, is that the Fiero has a high output version of the 2.8.

The Fiero hood doesn't get any hotter than the hood on a front engined car, either. However, because it's a composite rather than steel, and has no insulation, there will be some differences in how it feels.
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CarolinaRigman
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Report this Post11-06-2015 01:45 PM Click Here to See the Profile for CarolinaRigmanClick Here to Email CarolinaRigmanSend a Private Message to CarolinaRigmanEdit/Delete MessageReply w/QuoteDirect Link to This Post
It doesn't have 200 degree air from a radiator,which front engine cars do
The hood vented side panels also let some cooler air enter and hot air escape.
It's like any other vehicle, as long as it's moving, great, but in a traffic jam
Temps. rise and fans run.
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randye
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Report this Post11-06-2015 04:04 PM Click Here to See the Profile for randyeClick Here to visit randye's HomePageClick Here to Email randyeSend a Private Message to randyeEdit/Delete MessageReply w/QuoteDirect Link to This Post
Still puzzled by this apparent ongoing obsession with the normal under hood temperature of a 31 year old automobile....
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85fieroguy
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Report this Post11-06-2015 04:13 PM Click Here to See the Profile for 85fieroguySend a Private Message to 85fieroguyEdit/Delete MessageReply w/QuoteDirect Link to This Post
"..puzzled..obsession...normal ???? "", well Randye maby YOU can tell us what the "normal" rear engine compartment temperature is.
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randye
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Report this Post11-06-2015 04:28 PM Click Here to See the Profile for randyeClick Here to visit randye's HomePageClick Here to Email randyeSend a Private Message to randyeEdit/Delete MessageReply w/QuoteDirect Link to This Post
 
quote
Originally posted by 85fieroguy:

"..puzzled..obsession...normal ???? "", well Randye maby YOU can tell us what the "normal" rear engine compartment temperature is.


MAYBE, you could learn how to properly spell, and "maby" you could also back it down about 10 notches "Sparky".

WTF is with this hostility now added to this "heat" issue with you?

Its a 31 year old car. If YOU think the under hood temperature of YOUR car is too high, then DO SOMETHING ABOUT IT other than attacking the knowledge of more experienced Fiero owners in TWO different threads that you started on the SAME DAMN TOPIC now.
------------------

[This message has been edited by randye (edited 11-06-2015).]

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olejoedad
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Report this Post11-06-2015 08:34 PM Click Here to See the Profile for olejoedadClick Here to Email olejoedadSend a Private Message to olejoedadEdit/Delete MessageReply w/QuoteDirect Link to This Post
The under hood temps on my Fieros is no higher than on my 86 Cutlass Supreme, my 95 STS Cadillac or my 99 Blazer.
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