B-class '87 Trans Am GTA, modified Free Tune from .net.

[Fit4aking]

The Free Tune List has a few hidden gems and also a few cars that I wanted to play with so I've been trying out a few.  When the RWD hoppers went live I wanted a few more B-classers so I tried out two of the cars offered by GSW, a reputable garage on the daught net.  I was not disappointed in either car, an '87 Trans Am as well as an Exige 240.  Both had some weak points but were admittedly built for a specific track so it's no surprise that they would benefit from a little more of a general build to increase their usefulness at other venues.  I had amazing success with both and I decided to take and rebuild the Trans Am first.  The original build is on the list for comparisons sake.  Here is my version, a blender of my parts and GSW DM Clog's tune with only a few minor tweaks on my end.

Build:
Sport Air Filter
Sport Intake
Street Ignition
Sport Exhaust
Street Cams
Sport Valves
Race Displacement
Sport Pistons
Sport Flywheel
Race Dampers
Race Front and Rear Sway Bars
Race Chassis Reinforcement
Sport Weight Reduction
Race Clutch
Race Transmission
Sport Driveline
Race Differential
Street Compound
265/40-17 Front
275/40-17 Rear
Fikse FM/10 Rims
VFN Hood

Tune:
29psi
28.5psi

3.93, 2.47, 1.70, 1.29, 1.05, 0.90, 0.78

-1.1
-0.8
0.0
-0.2
5.9

7.00
12.00

789.7
588.1
3.6
3.6

7.3
5.0
4.0
3.1

45%
40%

It's not biased, none of F-dogs damper settings have been applied.  All I did was tweak the sway bars, increase both diff settings and run the bejesus out of it.  While I know it's good to know the numbers of any car this is just a showcase that sometimes an outside the box tune has fantastic results.  It turns it fantastically, pulls well on the straights, holds a steady line with only a bit of oversteer from the throttle (if applied smoothly) and I can easily get into the low 97 second range around Laguna.  Don't know if that's particularly good but judging from how easy it is to run away from the pack online both at Laguna and Mugello, I think it's a very good thing.  Give it a shot, build your own version, compare and discuss.

[Open2nd]

Is this the one you had me drive?

If so, its an impressive car.  My only niggle with it would be that it bottoms out fiercely on the Corkscrew.  To be fair though, even my personal tune for this car wound up bottoming out but not quite as severely.

That said, I absolutely can't believe the amount of turn-in this thing has without any kind of oversteer.  I honestly couldn't believe it was possible to get that much front end response without losing the back but boy was I wrong.

[Spiny Anteater]

Just a word on the bottoming out issue. I've found exactly the same issue with my D Class '87 TA. Nothing like as bad as the car was stock, but the bottoming out is still worse than any other tuned car in my garage. And it's not like I run with short springs or anything - typically I run 2 or 3 clicks above minimum unless circumstances dictate otherwise - I think this one is a 3-click tune. The sound of the bottoming out was bad enough to make me consider adding a bit more ride height, but after running it a bit more I discovered that not only was the bottoming out not affecting the handling, but I wasn't suffering any damage from it either.

[Open2nd]

If its anything like mine IRL, the thing is scrubbing the undercarriage before it hits the bumpstops.  Its a sickening noise, but Fit's version is the only one that the bottoming out felt like it was actually costing it time.

[Spiny Anteater]

Good to know that bit is modelled accurately then