First Generation Mazda RX-7 SA22C Setup in Adelaide

A Mazda RX-7 SA came into Autosport Tyre World for a full wheel, tyre and alignment setup.

This is not a modern sports car.
This is a classic first generation RX-7 platform from the late 1970s and early 1980s.

That changes everything when it comes to setup.

The Setup

Wheels:
Customer supplied Simmons wheels

Tyres: Yokohama Advan AD09

Size: 205/45R17

Shop AD09:
https://autostw.com.au/search?type=product&q=AD09

Why AD09 Works So Well on a Classic RX-7

Classic chassis benefit massively from modern tyre technology.

Compared to older tyre designs, AD09 provides:

• significantly more grip
• stronger sidewall support
• improved steering response
• better stability under load

On lightweight rotary cars like the SA22C, tyre behaviour becomes very noticeable.

The Most Important Part – Alignment

After installing the wheels and tyres, the RX-7 received a full alignment.

This is where older vehicles become very different from modern cars.

Rear Alignment Results

Before

Rear toe:

• Left: -4.2 mm
• Right: -1.5 mm
• Total: -5.7 mm

👉 Significant rear toe-out condition

What This Causes

On older rear-wheel drive cars:

• instability at speed
• nervous rear-end behaviour
• uneven tyre wear

Why Classic Cars Are Different

Unlike modern platforms:

• adjustment range is limited
• suspension wear affects geometry more
• perfect alignment numbers are not always achievable

The goal becomes:

👉 getting the best possible balance within mechanical limits

Front Alignment Results

Before

Front toe:

• Left: 3.6 mm
• Right: 0.5 mm
• Total: 4.2 mm

After

Front toe corrected to:

• Left: 1.6 mm
• Right: 1.5 mm
• Total: 3.1 mm

Real Driving Difference

After adjustment:

• steering became more predictable
• car tracked straighter
• front-end stability improved

Why Alignment Matters Even More on Older Cars

On classic cars:

• chassis movement is greater
• suspension geometry is older
• tyre technology has advanced far beyond factory specification

Modern tyres like AD09 can dramatically increase grip, but only if the alignment supports it.

Simmons Wheels on a Classic RX-7

The customer supplied a set of Simmons wheels, which suit the classic RX-7 styling extremely well.

The combination of:

• classic wheel design
• modern tyre technology
• corrected alignment

creates a setup that keeps the old-school character while improving drivability.

Wheel + Tyre + Alignment Work Together

This build highlights an important point:

👉 wheels change stance
👉 tyres change grip
👉 alignment changes how the car actually drives

Where to Align Classic Cars in Adelaide

For classic vehicles like RX-7 SA22C, it is important to choose a workshop that understands:

• older suspension systems
• alignment limitations
• modern performance tyre behaviour

Autosport Tyre World provides wheel alignment and tyre solutions for both modern and classic performance vehicles.

Final Setup Summary

Vehicle: Mazda RX-7 SA22C (First Generation RX-7)
Wheels: Simmons (customer supplied)
Tyres: Yokohama AD09
Size: 205/45R17

Services:

• wheel installation
• tyre fitting
• full wheel alignment

FAQ

What generation is Mazda RX-7 SA22C?

SA22C is the first generation Mazda RX-7 produced from the late 1970s to mid-1980s.

Can modern tyres improve classic RX-7 handling?

Yes, modern tyres like AD09 significantly improve grip and stability.

Why does alignment matter on older cars?

Older suspension geometry and worn components make alignment more critical.

What tyre size works on first generation RX-7?

205/45R17 is a common upgraded performance size.

Is AD09 good for classic cars?

Yes, especially lightweight performance chassis like RX-7.

Where can I align a classic RX-7 in Adelaide?

Choose a workshop experienced with both classic and performance vehicles.

Where to Buy Yokohama AD09 in Adelaide

TYREPLUS Magill | Autosport Tyre World Magill

647 Magill Road, Magill SA 5072
Phone: 0452 641 023