🚗 Porsche 911 Turbo Tyre Size, Wheel Specs, PCD, Centre Bore & Torque Guide
🔧 Vehicle Overview
The Porsche 911 Turbo / Turbo S represents the pinnacle of everyday supercar performance, featuring twin-turbo power and advanced AWD (PTM system). With extremely high power output, correct tyre fitment is critical for traction, safety, and drivetrain protection.
📊 Factory Wheel & Fitment Specifications
🔩 Core Fitment Data (Turbo – All Generations)
-
Bolt Pattern (PCD): 5×130
-
Centre Bore: 71.6 mm
-
Wheel Bolt Thread: M14 × 1.5
-
Wheel Nut Torque: 160 Nm (118 ft-lb)
✅ Applies across 997, 991, and 992 Turbo / Turbo S
🛞 Factory Wheel Sizes & Offsets
🔹 Porsche 997 Turbo
| Position | Wheel Size | Offset |
|---|---|---|
| Front | 19x8.5 | ET56 |
| Rear | 19x11 | ET51 |
🔹 Porsche 991 Turbo / Turbo S
| Position | Wheel Size | Offset |
|---|---|---|
| Front | 20x9 | ET51 |
| Rear | 20x11.5 | ET56 |
🔹 Porsche 992 Turbo / Turbo S
| Position | Wheel Size | Offset |
|---|---|---|
| Front | 20x9 | ET55 |
| Rear | 21x11.5 | ET67 |
📌 Turbo models use wider rear wheels than Carrera models for maximum traction.
📏 Factory Tyre Sizes
🔹 Porsche 997 Turbo
-
Front: 235/35R19
-
Rear: 305/30R19
🔹 Porsche 991 Turbo / Turbo S
-
Front: 245/35R20
-
Rear: 305/30R20
🔹 Porsche 992 Turbo / Turbo S
-
Front: 255/35R20
-
Rear: 315/30R21
📌 The 992 Turbo uses extra-wide rear tyres (315 section) for extreme grip.
⚙️ AWD Tyre Matching (CRITICAL FOR TURBO)
The Porsche Turbo AWD system is highly sensitive:
✔ Same tyre brand
✔ Same tread pattern
✔ Similar tread depth (within 2–3mm)
✔ Correct rolling diameter
❌ Incorrect setup can cause:
-
AWD system damage
-
Transfer case failure
-
Loss of traction under boost
⚙️ Recommended Tyres (Australia)
🔥 Best Daily Performance
-
Michelin Pilot Sport 4S (N-rated)
-
Pirelli P Zero (PZ4 Porsche spec)
-
Continental SportContact 7
✔ High-speed stability
✔ Excellent wet grip
✔ Ideal for daily + performance
🏁 Maximum Performance / Turbo Driving
-
Michelin Pilot Sport Cup 2
-
Pirelli Trofeo R
✔ Maximum grip
✔ Designed for high-power vehicles
🔇 Comfort Option (Limited use)
-
Continental MaxContact MC7 (not typical for Turbo owners)
✔ Lower noise
✔ Better comfort
⚙️ Aftermarket Upgrade Guide
✔ OEM+ Setup (Recommended)
-
Maintain factory sizes
✔ Critical for AWD + performance
✔ Performance Setup
-
PS4S / SportContact 7
✔ Best balance of grip + durability
✔ Track Setup
-
Cup 2 / Semi-slick tyres
✔ Maximum traction for Turbo power
⚠️ Critical Fitment Notes
-
Turbo models require perfect tyre matching
-
Always replace tyres as a full set
-
Staggered setup = NO front-to-rear rotation
-
Incorrect sizes affect:
-
AWD system (PTM)
-
Porsche Stability Management (PSM)
-
Launch control performance
-
-
Always use N-rated tyres
🛠️ Torque & Installation Guide
-
Torque Spec: 160 Nm
-
Re-torque after 50–100 km
-
Always use torque wrench (essential for high-performance vehicles)
🏪 Why Choose Autosport Tyreworld?
At Autosport Tyreworld, we specialise in high-performance vehicles like Porsche Turbo:
✔ AWD tyre matching expertise
✔ Porsche-approved tyre options
✔ Premium brands: Michelin, Continental, Pirelli
✔ High-speed balancing & precision alignment
📍 Visit Our Stores
AUTOSPORT TYREWORLD
📍 647 Magill Road, Magill SA 5072
📞 0452 641 023
📍 411 Grand Junction Road, Wingfield SA 5013
📞 0433 645 411
📍 911 South Road, Clarence Gardens SA 5039
📞 0420 299 911