Engineering Angelo Magtoto's AR-i8 Race Wheels: Design, Validation, Production

Angelo Magtoto's Toyota GR Supra A90 weighs 1,520 kg with driver and generates 2+ G cornering loads during time attack sessions. His wheels needed to handle that reality, not just look good doing it.

After our partnership announcement with Angelo, we moved straight into engineering his custom AR-i8 wheels. Here's how consultation became validated design.

Key Takeaways

• Custom AR-i8 wheels: 18x11, ET35, PCD 5x112, CB 66.5mm, hyper silver finish

• FEA testing shows 110 MPa max stress vs 240+ MPa material yield strength (2.2x safety factor)

• 8-spoke design distributes stress efficiently for 1,520 kg vehicle under racing loads

• Personalized red engravings: "Autoholic Racing Paddock Club," "Angelo Magtoto," "AR Competition"

• Design validated digitally before manufacturing begins

Table of Contents

1. Angelo's GR Supra: Understanding the Requirements

2. Specifications: Why These Numbers Matter

3. AR-i8 Design: 8-Spoke Engineering Logic

4. Hyper Silver Finish: The Evolution

5. FEA Validation: Proving It Works

6. What's Next: Manufacturing Timeline

Angelo's GR Supra: Understanding the Requirements

Angelo's A90 carries 1,430 kg without driver, 1,510-1,520 kg with. The B58 engine sits up front, creating weight bias that loads the front wheels heavily through corners. Time attack generates sustained 2+ G lateral forces, not the 1.2-1.5 G typical track day loads.

His platform specs:

• PCD: 5x112 (BMW/Toyota shared platform)

• Center Bore: 66.5mm hub-centric

• Color: Satin Grey

• Use case: Time attack racing with hard braking, kerb strikes, thermal cycling

Aura Forged AR-i8 Specialized Wheels for Angelo Magtoto

The wheels needed to reduce unsprung weight while handling forces that crack lesser components.

Specifications: Why These Numbers Matter

18x11 Dimensions

18-inch diameter balances tire sidewall support with brake clearance for factory Brembos or upgraded BBKs. The 11-inch width maximizes contact patch for a 1,500+ kg car without excessive fender modification.

ET35 Offset

This offset calculation considered:

• Suspension geometry clearance at full compression and steering lock

• Fender clearance under body roll and tire deflection

• Proper scrub radius for steering stability

• Wheel bearing and suspension stress

ET35 gives Angelo aggressive fitment without rubbing or compromising handling.

Load Ratings

With 1,520 kg weight and 2+ G cornering, each front wheel sees over 3,000 kg equivalent static load. The AR-i8 design needed validation for those forces with substantial safety margin.

AR-i8 Design: 8-Spoke Engineering Logic

The 8-spoke configuration isn't aesthetic preference; it's structural optimization.

Stress Distribution

Eight spokes create multiple load paths from hub to barrel. The Y-spoke pattern distributes cornering forces evenly rather than concentrating stress in fewer, heavier spokes.

Weight Efficiency:

• 5-spoke wheels need thicker, heavier construction per spoke

• 10+ spoke wheels add material without strength gains

• 8-spoke hits the strength-to-weight sweet spot

Structural Features:

• Deep valleys between spokes remove material from low-stress zones

• Spoke thickness varies based on load paths

• Hub area reinforcement handles rotational and vertical forces

• Large spoke openings provide brake caliper clearance and airflow

For Angelo's 1,520 kg platform under racing stress, this architecture delivers rigidity without unnecessary weight.

Hyper Silver Finish: The Evolution

Initial renderings showed satin grey with machined edges. After review, we shifted to hyper silver.

Why the Change

Satin Grey recedes visually on Angelo's black Supra. Hyper silver creates dimensional contrast, lets light play across spoke depth, and showcases the machining complexity we engineered into the design.

Finish Details

• Metallic base coat for depth and reflectivity

• Polished spoke edges creating highlight lines

• Dark barrel interior maintaining aggressive aesthetic

• Clear protective coating for track durability

This isn't powder coat over cast aluminum. It's precision finish over forged, CNC-machined 6061-T6.

Personalized Engravings (Red Paint Fill)

• Barrel outer edge: "AUTOHOLIC RACING" + "PADDOCK CLUB" 

• Spoke faces: "ANGELO MAGTOTO" + "AR COMPETITION" 

• Lower spokes: "AURA ICONIC AR-i8" + "6061-T6 FORGED" 

• Barrel: "JWL VIA" certification marks

Every engraving placement avoids high-stress structural zones. Red creates visibility without overwhelming the hyper silver finish and ties to the center cap accent ring.

FEA Validation: Proving It Works

Before cutting billet aluminum or programming CNC machines, we simulate. Finite Element Analysis subjects the AR-i8 design to virtual stress testing.

Reading the Results

The FEA images show Von Mises stress distribution under static loads:

Color Legend

• Blue (0.03-36 MPa): Low stress, optimal zones

• Green-Cyan (45-73 MPa): Moderate stress in load transfer areas

• Yellow (82-91 MPa): Higher stress at critical junctions

• Red (110 MPa max): Peak stress concentrations

Front Face Analysis

Yellow-green zones at spoke roots show expected stress where vertical load and rotational forces transfer from hub to wheel structure. This confirms proper load channeling through the strongest areas.

Blue spoke faces prove material distribution works: adequate thickness without excess weight in low-load zones.

Hub center stress is expected—all forces converge here. Lug holes show elevated stress from bolt torque, normal and accounted for.

Rear Face Analysis

The barrel seat shows uniform load distribution from tire pressure and cornering forces. Our multi-step barrel design manages hoop stress without concentration points that cause cracking.

Spoke backs show more uniform blue than fronts, confirming optimized material thickness. Back sides don't need front-side thickness because they're not directly loaded by cornering forces.

The Numbers

• Maximum stress: 110 MPa 

• 6061-T6 yield strength: 240-280 MPa 

• Safety factor: 2.2-2.5x

Under worst-case static loading (full vehicle weight on single wheel), maximum stress is less than half the aluminum's deformation point. We exceed JWL/VIA minimum standards because Angelo's time attack use demands it.

Additional Testing

Static loads are foundation validation. We also test:

• Dynamic cornering loads (2+ G lateral simulation)

• Impact resistance (kerb strikes, potholes)

• Fatigue life (thousands of stress cycles)

• Thermal analysis (brake heat dissipation)

Physical testing on manufactured wheels confirms simulation predictions.

Why This Matters

FEA is the difference between engineering and guessing. When Angelo hits hard braking zones, carries 2+ G through corners, or clips kerbs on the racing line, his wheels were validated for exactly those scenarios before seeing a track.

What's Next: Manufacturing Timeline

With design finalized and FEA complete, the AR-i8 wheels move into production:

1. Billet selection – Aerospace-grade 6061-T6 with material traceability

2. Forging – 10,000-ton press creates grain structure strength

3. Heat treatment – T6 aging for optimal hardness

4. CNC machining – Multi-axis programming to match approved design

5. Quality control – Dimensional verification within tight tolerances

6. Hyper silver finishing – Multi-stage polishing, coating, clear layer

7. Red engraving paint fill – Precision application of personalized details

8. Final inspection – Balance testing and standards confirmation

Timeline: 8-10 weeks from production start to Philippines delivery.

These aren't warehouse stock. They're forged, machined, and finished specifically for Angelo's GR Supra, to his specifications, with his identity engraved into every corner.

The Aura Forged Process

Angelo's journey represents what custom wheels should be: understanding the application, calculating loads, validating design, manufacturing to proven standards.

Real customization means showing FEA results, explaining why ET35 over ET40, detailing how spoke patterns affect stress distribution. Whether building time attack Supras or upgrading daily drivers, the methodology stays consistent: consultation, specification, design, validation, manufacturing, delivery.

Every step is documented. Every decision is explained. Every claim is backed by engineering data.

Build Your Custom Wheels

Angelo's AR-i8 wheels move into manufacturing with validated engineering and track-proven design. The Atelier program brings the same precision to your project.

Get Your Custom Quote | Explore Atelier Series

Angelo Magtoto's AR-i8 Race Wheels

Next: Finished Wheels

References

1. Society of Automotive Engineers (SAE), "Wheel Standards and Testing Procedures," SAE International, 2024

2. Japan Light Alloy Wheels Standards (JWL), Ministry of Land, Infrastructure, Transport and Tourism, Japan

3. Aluminum Association, "6061-T6 Aluminum Alloy Properties," Materials Database, 2024