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*
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.
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.
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.
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.
"..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).]
