Okay, I have me Saleen just about finished up now, specially since it has that interesting paint scheme on it. Here is the story behind it...
I started this project pretty much as I start any project - with the purchase of what I call the Big Seven. Race Springs, ARB, Clutch, Transmission, Differential and Brakes. (the transmission is sometimes optional for the Sport Version, and the brakes are sometimes skipped, but usually not.) Having added these parts I did a quicky tune, mostly setting the tire pressures and alignment, and took it out to the home track. Using the private room trick I ran Sebring Club and my QR tracks untill I had the thing leveled off and paid for. My best time on Sebring Club was a 75.041.
The car ran pretty snug, with just a slight tendency to oversteer on a constant radius turn (think Maple Valley). The primary property that caught my attention was how slow the engine was to ramp up. After numerous laps on quite a few different tracks I was getting slightly annoyed with it and vowed that addressing that was going to be top priority when it came to partin' up.
And so it was. The first counter that I went to was the Camshafts. Besides moving the power and torque curves, cams are good for speeding up the rev speed. The Street cam still left the car in a stroker state (more torque than Hp) so I bought it. I also went directly and bought the Race level flywheel. Most of the time I save the Flywheels for the end of a build to help clear left over Pi, but I wanted to get them on there for sure this time for the Ramp Up problem.
One way to think of all this engine tuning is to consider the engine an air pump. The more air it pumps, the more power it makes. The AUD (Automatic Update Dude) seems to agree - his first few power part selections are always directly air related. I bought the Race Valves, Race Exhaust, and Sport Air Filter next.
Now I was at a Pi point where I had to make a decision. Weight or Tires. Street WR was not available and Sport WR cleaned out the remaining Pi. For that same Pi I could get the widest tires available, and the lightest Rims available, the Holeshot Holestar, and still have some Pi left. Going with the Weight left me with 2767 lbs and 417 Hp. Going with the wheels left me able to get the Sport Ignition and the Race Driveline as well - 2951 lbs and 433 Hp. That is the route I took.
Then using a calculator of my own invention, I applied the following Toon...
Gears- FD = 3.30
- 1-6= 2.72 1.96 1.56 1.30 1.09 0.94
Setup| Wt Bias - SWR | 50.00% | 46.50% |
| Parameter | Front | Rear |
| Tires | 28.5 | 28 |
| Camber | -1.0 | -0.8 |
| Toe | 0.1 | -0.1 |
| Caster | 5.0 | |
| ARB +80% | 16.3 | 16.3 |
| Springs +0% | 679 | 679 |
| Height | 3.9 | 4.0 |
| Rebound | 8.4 | 7.9 |
| Bump | 4.2 | 4.2 |
| Aero +0% | na | na |
| Brakes | 48 | 104 |
| Front Diff | na | na |
| Rear Diff | 32 | 26 |
| Torque | na | |
With all that I was able to run a 72.065 which is my current personal best on Saleen Club in B Class. The car QRs @ 209.419 with a tendency towards what I call the Power Tracks.
Rather than attempt to explain the tuning parameters, I will entertain questions.
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