So I get up one day to take the car for her afternoon run..
and I notice things are 'different' and not in a bad way... well maybe..I don't know.

The gear changes feel ultra smooth, like every shift.
and the clutch engagement/disengagement gear changes are extra smooth.

It's not my driving habbits or style, nothing has changed.
Really weird.

Things worked in?
Just turned 28,000km

 

A little background: got my first dirt bike @ 13 yo (and still have a two wheeler), learned to drive on a Corvair Spyder (showing my age),my first car had a 3 sp. on the column (really feelin' old) and have never owned an auto all these years later.

I've come on these boards and have read about the sloppy shifters on the sn 197s and maybe it's just me but my brand new GT feels great and see no need to upgrade. After all the research I thought for sure I'd put a Hurst in the first week but no, I see no need to do it.

Glad things worked out for you!

 

I've had days like that. I've also had days where the clutch and shifter weren't cooperating at all.

My impression is that it's probably related to fluid temperature. The viscosity of the tranny fluid is probably at just the right fluidity that everything in the tranny is gliding against each other just right.

Those days are sooooo nice. Every gear change is solid and power is delivered to the pavement with ease. I hate getting out of the Mustang when I get a drive like that.

I'm at 17,000 miles.

 

The V6's take about 1000 miles for the shifter to break in, they are a bit rubbery when new to say the least. It stays a bit notchy, but its very positive and you don't miss any shifts. The shifter in my 07 GT is flawless and see no need for anything aftermarket.

 

+1 My '07 Job 2 shifter is great. I bought a Hurst before I had the car, but have yet to feel the need to install it. Well balanced, positive shifts every time. I've heard that the '07s are leaps and bounds better than previous years, but I haven't had the opportunity to compare.

 

Yeah i wouldn't mind taking a test drive to see the difference.

Fastrack was getting a TSB done and had an 07 loaner, he said he could really feel there was a difference.

Took mine for a spin yesterday, same feeling.
It's almost as if it lost some tension in the return springs, as well as what I mentioned above.

 

My car has 15k miles and has had a pro 5.0 shifter in it for about 10k of those miles and mine is just now starting to break in how I like it.

 

Could be that its just the right conditions of weather and the wear in.

Took her for a long cruise today, and holy crap... The rear end got happy in ways I've never seen. Just casually going into 2nd and then flooring it got the rear end going...
She really liked the weather today. Not humid, slight breeze...

 

N/A engines aren't affected a great deal by ambient conditions unless we're talking major temperature swings that would affect the density of air.

 

I think its an 05 thing and almost an 07 then I put a higher octane fuel & K&N CAI ran a lot smoother and even now with a Bama 93 Race toon

 

With temps in the last week ranging from 20 to 40+ with the humidex and over 80% humidity compared to now ...
you can TOTALLY tell a difference. So yes, it does.
Night and day

 

So... which color is it now?

 

Feels cool/good... not sure if something was wrong because it was different
(good) -------------------------------------------------------------(Bad)

 

Naturally aspirated engines don't care too much about humidity unless we're talking track times. Forced induction, on the other hand, is a totally different story.

Temperatures normally range from 40F to 90F in the MI summers. I have not experienced any difference in power with the wild temperature swings. My Stang is just as fast in the cold as it is in the heat with 100% humidity. I have kept my Stang 100% stock in terms of performance mods, so that might be a big factor as well.

 

I've never had a car as picky as this one when it comes to "good air". My car is a screamer in the morning air but the afternoon can sometimes feel like its pulling a trailer. Almost as if I've lost 20hp from morning to afternoon. I use a relative horsepower calculator and when it says the engine should be running at only 91% of its true power thats the same day it feels slow. When the weather is right though watch out. I dont see how anyone could overlook the changes the engine undergoes in different conditions. Maybe its all in the location.

 

I've driven around 10 different cars of various engine sizes and configurations since I got my license in 94.
EVERY car I've ever driven has been affected by temperature and air condition/quality.

If you haven't experienced this, you live in a place that has such a constant air quality, that you wouldn't notice it, or you just don't notice it. It's there...even if you believe it doesn't exist. There's a reason why elevation and outside temp/humidity are factors in how much power your car make.

Tell you what.
Go take a run on a cool morning with low air moisture, and then gauge how you feel and how far you get.
Then take a run on a hot humid day, see how you feel. You’ll notice.

 

I can tell the difference if the temps change less then 10 degrees F or 15% humidity. My car drives different most days at 7 am then it does at 4pm. All cars are like this, and planes fly differently too depending on temp/humidity conditions, on top of just the engine's performance. My father's piper archer makes a huge difference depending on just air quality, not just winds. Motorcycles too...