I've noticed that my Z's engine bay and intake runners seem to get excessively hot when I run the car hard. I know this is probably normal but my engine bay stays hot for at least 20-30 minutes ( alot hotter than my Z32, or other cars I've run hard) Does this only happen to me or is this par for the Z?

 

my engine is hot obviously, but the temp gauge always reads a little under the middle point

 

Just a guess, the newer cars are set to warm up very fast and thereby reduce emissions, so they get hot faster and retain it longer in the engine bay. I have taken my new Z out to pick something up at 9 am, park it home at 9:30 am. I can go out 3-4 hours later and the temp gauge is still showing 1/4 off the cold area on startup and 2 minutes later, its back to normal, just slightly under a half like it runs always when its fully warmed up.

Boomer--Anyone care to explain it better in mechaneeze? Or am I wrong?

 

its weird that you say that, I didnt even think of that, but mine does the same. it will start back up like 2 hours after I leave it for class and still be near full temp. its nice for heat.

tho its bad for doing engine work, I installed the grounding kit and ouch, kept touching the top of the manifold. after like 3 hours it was still noticably warm, even with hood open.

 

Same here. The temp. needle stays under the midpoint, and the car stays hot for at least 30 minutes. I was just thinking about this earlier today, too.

 

Definitely nice for wintertime....

It makes me wonder how it keeps in the
heat so well?

 

Hey guys...

While on the subject of HOT... I noticed the underside hood of the Z has no insulation. Isn't that strange? I've never noticed this on any other car. Why do you think theres no insulation... esp since the engine area gets really hot, isnt it necessary??

 

My 2000 Maxima with a VQ engine did the same thing, as does my Z. It must just be part of the way it is designed.

 

that insulation would only keep heat in... couldnt imagine it being hotter outside than inside the bay.

the main purpose of it tho I think is for sound proofing. which they skipped in places where a sports car should be heard. the doors still have a "thud" sound, but you want to hear the engine and exhaust.