Is it possible to lose power noticably(6MT)???
I took my Z into a dealer because of a rattle in cabin.
They told me the tech and service manager test drove the car and could not duplicate...
Ok...fine...when I got my Z back it felt like it wasn't pulling hard as before?
Also, I can't hear the Pop charger whistle noise at 3000k anymore when I
drive on freeway speed
I think the whole power loss thing might be just in my head,
but weird thing is that I don't hear the whistle anymore...

 

heat soak will rob power.

 

What do you mean by heat soak???

 

when the intake and exhaust become so saturated with heat that you're just moving hot air, it affects power. i'm sure someone else can explain it better.

 

+1

Hot air isn't very friendly for an engine.

 

"I think the whole power loss thing might be just in my head"
.
Me too.

 

That could be it too, maybe your just getting use to the power...time to go FI

 

just drive a beater car for a week. You'll feel all the power when you drive the Z again.

 

LOL yea my Z's going into the shop for bodywork next anyways~