Fiat 147

TYRES

• Compound: Slick (as on the reference lap; stock Fiat 147 is a road car, so confirm the slick option is exposed in your build, otherwise use Semislick)
• Cold set pressures: FL 25 / FR 22 / RL 20 / RR 18 PSI (cold)
• Hot targets after the lap: FL 30 / FR 27 / RL 24 / RR 21 PSI, in line with the reference lap's 30.3 / 27.2 / 24.4 / 21.4
• Front pressures: 25 PSI cold L / 22 PSI cold R, hot 30 / 27 PSI
• Rear pressures: 20 PSI cold L / 18 PSI cold R, hot 24 / 21 PSI
• Alignment (only if the car exposes it): Front camber -2.5°, Rear camber -1.5°, Front toe 0.0°, Rear toe +0.10°, Caster as available (max)
• Tyre blankets: session option, not a car property. If off, the out lap is the warm-up, so build 2-3 lap of heat before the flying lap.

ELECTRONICS

• TC: none fitted on the 147, nothing to set
• ABS: none fitted on the 147, nothing to set
• Engine braking / brake magic: not adjustable on this car
• Brake bias: 72.0% front (reference lap value), see note below, car has no ERS

SUSPENSION

• This is a small road car, so most of the screen below may be locked in your build. Anything the setup screen does not show is left at the car default, and the values below are the targets for whatever it does expose.
• // FRONT
• Ride Height: 60 mm (lowest allowed)
• Wheel Rate FL / FR: 38,000 / 38,000 N/m (stiffest practical)
• ARB: 30,000 N/m
• Brake Torque Multiplier: 100% (brake power 100%)
• Brake Bias: 72.0% front
• // REAR
• Ride Height: 65 mm (lowest allowed)
• Wheel Rate RL / RR: 32,000 / 32,000 N/m
• ARB: 18,000 N/m
• Diff Preload: 40 Nm (if adjustable; the 147 uses a stock open diff, so these three may be absent)
• Diff Coast: 0.3 equivalent / 30%
• Diff Power: 0.5 equivalent / 50%

DAMPERS

• The 147 offers simple bump/rebound only, so use the slow values for both columns if four-way is not shown.

	Slow Bump	Slow Rebound	Fast Bump	Fast Rebound
FL	3,200	4,800	2,200	3,400 Ns	m
FR	3,200	4,800	2,200	3,400 Ns	m
RL	2,600	4,000	1,800	2,800 Ns	m
RR	2,600	4,000	1,800	2,800 Ns	m

AERO

• No adjustable aero on the 147: front wing n/a, rear wing n/a, no splitter, no brake ducts. Downforce level 0 steps. Do not attempt to set any.

KEY SETUP NOTE

• The reference lap's tyre pressures show a strong left-to-right and front-to-rear gradient (30.3 / 27.2 / 24.4 / 21.4 PSI hot), which means the setup fought front-left overheating and rear-right underloading. Keep that spread as your baseline, and balance the car with 72% brake bias and a soft rear (rear wheel rate below front, softer rear ARB) so the rear rotates under braking without snapping. Fuel is not recorded for a flying lap: run the minimum, around 5 L, since the 42 L on the reference lap is dead weight for a hot lap and costs roughly 0.3-0.5 s.

TRACK GUIDE

• I have no verified corner-by-corner data for Largo Chicana2 (4.099 km), so treat these as general principles rather than named-corner calls. Brake on the straight to the first chicane in a straight line at 100% pressure, then trail the brake to the apex to rotate the nose.
• Take the chicane kerbs flat: this car is light, and the aggressive style you want (hard kerbs, maximum rotation) works as long as you unload the rear on entry with a lift-off or brake-trail, not a snap lift mid-corner.
• Power is limited, so carry minimum speed loss. A clean exit is worth more than a late brake: be on throttle early and straighten the wheel before applying full power.
• Lap time is won by exit speed onto the longest straights, not by entry heroics. Sacrifice entry for exit in every slow corner.
• With cold slicks and no blankets, the out lap plus the first half of the flying lap are the weakest. Weave and brake hard on the out lap to build heat before the timed lap starts.