What did you do today to your 3/S?

**95gto** · 08-05-2014, 05:01 PM

Originally Posted by CoopKill

What are the specs raised vs lowered on down force?

This is a tough question to answer. The APR wing had cfd data available but the new airfoil did not. My concerns with the data are that the CFD analysis appears to performed with the wing in free space and the data tables are limited. Since the wing is mounted lower than the rear roofline I don't think it will get the full performance of being in "clean air" but part of the beauty of a 3d airfoil on a car like ours is that it doesn't have to be up really high to work. And since our AA system didn't seem to meet their published numbers directly I had to do some interpolation. And once again the AOA measurements weren't made with the best device available so there is probably some variation in those values.

So disclaimer aside here are some basic comparisons based on the Angle of Attack measurements and the CFD data that APR provided:

Down - AOA = 0*
80mph = 79.6 lbs
100mph = 126.3 lbs
120mph = 184.0 lbs

Up - AOA = 14*
80mph = 107.6 lbs
100mph = 170.0 lbs
120mph = 240.7 lbs

Now once again this was for the old wing and it won't fully account for the mounting location, so in practice the actual values would be lower. To me the big question is how much lower will they be.

**CoopKill** · 08-05-2014, 06:44 PM

Still good numbers. I was thinking the up position angle might take away from the foil doing its job, and reducing down force.

**sergechronos** · 08-05-2014, 08:11 PM

Workbench is mostly completed outside of wrapping the main bench in steel now. Did some cleaning and organizing in the garage. More stuff going out with the garbage tomorrow.

Disassembled my AC compressor as its status is unknown but I did see signs of some rust by the manifold. Gonna write up a thread about it shortly for feedback and ideas. May just be super lazy and exchange it for a reman

**lawdogg** · 08-09-2014, 04:14 PM

Used toe plates to align it ...

swapped out brake switch ...

changed oil and used HP-2007 filter (http://www.3sgto.org/3000gt-stealth-...-location.html).

Less than 3qts came out. WOOPS. Off to Blackstone with the oil.

aaand just realized that my tach isn't working (not 1:1 with the engine) .. wtf

**rawavr4** · 08-09-2014, 08:02 PM

Drove down to CT to pick up some Gewalt evo wheels. 19x9/10. Slight curb rash which is fixable but I had them thrown on a tire balancer to check straightness, and they were out of round by quite a bit. I couldn't pull the trigger on em. Someday I'll have a set.

**AdamVR4** · 08-10-2014, 02:51 AM

Originally Posted by lawdogg

Used toe plates to align it ...

aaand just realized that my tach isn't working (not 1:1 with the engine) .. wtf

Those wheels look really good. I've always thought white lettering on tires looked bad (my hoosier QTP's included), but that's small enough that it looks nice.

I had to replace the gauge cluster on my car because the tach shit itself and read low. Let me know if you figure out how to repair it

**lawdogg** · 08-10-2014, 01:33 PM

Originally Posted by AdamVR4

Those wheels look really good. I've always thought white lettering on tires looked bad (my hoosier QTP's included), but that's small enough that it looks nice.

I had to replace the gauge cluster on my car because the tach shit itself and read low. Let me know if you figure out how to repair it

Thanks man. Yeah I tried to keep it subtle. I like how it matches the paint ... would work for you too!

With the tach, guesses that I don't think are unreasonable are (1) dirty dash connections, (2) dirty PTU signal connections, (3) the tach became a muggle and lost its electricity magic and needs to be swapped out for my spare. I'm leaning towards (3) at this point but I'll let you know.