Need Help Tuning - Renault 5 Turbo (A Class)

Spot_The_Kitty · May 11, 2014, 1:15am

Car:Renault 5 Turbo (1980)
Build (Parts and goodies)
Conversion

Engine Swap: 3.7L V6 - VVT (2nd option)
Drivetrain Swap: Stock
Aspiration Conversion: Twin Turbo

Engine

Air Filter: Stock
Intake Manifold and Throttle Body: Stock
Fuel System: Stock
Ignition: Stock
Exhaust: Stock
Camshaft: Stock
Valves: Race
Displacement: Stock
Pistons and Compression: Stock
Aspiration: Sport
Intercooler: Stock
Oil and Cooling: Stock
Flywheel: Sport

Platform & Handling

Brakes: Race
Springs & Dampers: Race
Front Anti-roll Bars: Race
Rear Anti-roll Bars: Race
Chassis Reinforcement and Roll Cage: Sport
Weight Reduction: Race

Drivetrain

Clutch: Stock
Transmission: Race
Driveline: Race
Differential: Race

Tires and Rims

Tire Compound: Race
Rim Style: Sport - Cyclone
Front Tires: 245/20R17
Rear Tires: 295/25R18

Aero and Appearance

Front Bumper: Forza (Adjustable
Rear Wing: Forza (Adjustable)
Rear Bumper: Stock
Side Skirts: Stock
Hood / Bonnet: Street

Tune
Tire Pressure

Front (PSI): 30.9
Rear (PSI): 25.5

Alignment

Camber Front: -1.8
Camber Rear: -2.3
Toe Front: 0
Toe Rear: -0.2
Caster Front: 6.8

Anti-Roll Bars

Anti-Roll Bars Front: 21.9
Anti-Roll Bars Rear: 17.9

Springs (lb/in)

Springs Front: 412.8
Springs Rear: 477.7
Front Ride Height (in): 5.2
Rear Ride Height (in): 5.2

Damping

Rebound (Front): 5.2
Rebound (Rear): 7.7
Bump (Front): 4.3
Bump (Rear): 4.9
Brakes (Balance): 53%
Brakes (Force): 80%

Differential

Acceleration (Front): 0%
Acceleration (Rear): 60%
Deceleration (Front): 0%
Deceleration (Rear): 10%
Split (Front): 0%
Split (Rear): 0%

Gearing

Final Drive: 4.02
1st: 2.77
2nd: 1.88
3rd: 1.42
4th: 1.14
5th: 0.96
6th: 0.82
7th:
8th:

Car build in Excel
Clicking on the link should open up excel online, yay!

reaper_mech · May 11, 2014, 1:52am

Front Tire Pressure PSI 30.9 31.0 L .1
Rear Tire Pressure PSI 25.5 25.5 R .0
“S
u
g
g
e
s
t
e
d” Alignment
Camber Front -1.8
Rear -2.3
Toe Front 0.0
Rear -0.2
Caster Front 6.8
Anti-Roll Bars
Anti-Roll Bars Front 21.9
Rear 17.9
Springs
Springs lb/in
Front 411.2
Rear 474.7
Front Ride Height in 5.2
Rear Ride Height in 5.2
Damping 25% 50% 75%
Rebound Front 5.2 4.2 4.5 4.9
Rear 7.7 5.8 6.5 7.1
Bump Front 4.3 2.1 2.8 3.6
Rear 4.9 2.4 3.2 4.1
Brakes %
Balance 53%
Force 80%
Differential
Acceleration Front 0%
Rear 60%
Deceleration Front 0%
Rear 10%
Split Front 0%
Rear 0%
Gearing
Forced Induction
Final Drive 4.04 3.36
1st 2.77
2nd 1.88
3rd 1.42
4th 1.14
5th 0.96
6th 0.82

ok by going off of your spread sheet a first red flag is tire pressure , that is way to far apart start with 28/28, the alignment is off just a touch too try -2.5 front and rear to start and reduce the caster back to 5.0
the shock setting look correct using the forza info but for track racing they need to be somewhere in the rebound : 7-8 front and rear to start and 2.0-3.5 front and rear to start
i cant see it at the moment does the car have forza aero installed on it?

now please not this is just by looking at the tune , have not built the car to your specs just yet. when i get a spare moment i will build it up and test drive it

Spot_The_Kitty · May 11, 2014, 2:07am

Thanks I’ll try tweaking those. The tire pressure came from ONR RoadRunner’s calc, but it seems he has now just scrapped it. Dampers are a mixture of Forza Tune and ONR RR calc. Yes, Aero on front and back.

Spot_The_Kitty · May 12, 2014, 2:00pm

I still have not given up on this car. grrrrr makes me a sad kitty.
Car:Renault 5 Turbo (1980)
Build (Parts and goodies)
Conversion

Engine Swap: 3.7L V6 - VVT (2nd option)
Drivetrain Swap: Stock
Aspiration Conversion: Twin Turbo