TACKLING PRO-TOURING CHALLENGES: WHY POWER STEERING MATTERS WHEN RUNNING WIDE FRONT TIRES
Key Takeaways
- Big tires need big steering power. Fitting a 315+ tire up front adds serious load — especially at low speeds — and basic racks often fall short. A dual power rack is essential for control and comfort.
- Steering effort skyrockets without the right components. Without the proper power assist, maneuvering wide front tires becomes a fight — especially in tight corners or autocross situations.
- Speedtech builds for real-world drivability. The Speedtech ExtReme front suspension combines optimized geometry and a Sweet dual power rack to deliver modern steering feel, sharp response, and true ease of use — even with massive rubber.
Getting a 315+ tire to fit up front is one thing. Being able to steer it is another. Wide tires bring serious grip and aggressive stance, but they also bring often unrecognized steering demands — especially at low speeds or during tight maneuvers. Clearance and geometry are just part of the equation. You need serious steering power to make it all work.
That’s where Speedtech’s ExtReme Front Suspension delivers. It’s designed not only to fit wide tires but to turn them with confidence. From optimized suspension geometry to a dual power rack setup that delivers effortless steering feel, it’s the solution for pro-touring builds that want both form and function.
In this post, we’ll walk through the challenges of running wide front tires and explain how Speedtech solves them — so you’re not left muscling the wheel every time you pull into a parking lot.
WHY FIT A 315 FRONT TIRE?
For builders chasing serious grip and balance, wide front tires are a must. A 315/30R18 offers incredible traction and helps balance out the rear – especially on pro-touring cars with massive horsepower. But fitting that much rubber up front on a classic muscle car isn’t as simple as bolting it on.
Common problems include:
- Frame or fender interference during full lock
- Insufficient camber or caster adjustment to align wide tires properly
- Suspension geometry that causes poor steering feel or bump steer
And even if you solve those? You still have to turn those tires. That’s where most people overlook one key detail: steering power.
THE OVERLOOKED CHALLENGE: POWER STEERING DEMANDS WITH A BIG TIRE
It’s easy to think any rack will do, but once you’ve mounted a 315 and hit the street or track, it becomes clear: wide tires mean more resistance. Especially at low speeds or in tight autocross slaloms, steering effort skyrockets. Many aftermarket front ends use basic racks that weren’t spec’d for this kind of load.
Speedtech takes a different approach. They specify a Sweet Manufacturing dual power rack-and-pinion as part of the ExtReme front suspension. This rack isn’t an afterthought — it’s a critical component chosen to deliver the power assist needed to steer big tires with precision and ease.
WHAT IS A DUAL POWER RACK AND PINION?
Most power racks only assist in one direction. The dual power rack applies hydraulic assist both ways, making it noticeably easier to navigate tight corners or parking lots with wide rubber up front. It also:
- Improves low-speed steering effort
- Maintains feedback and road feel at higher speeds
- Handles the lateral loads from 315+ front tires without binding or deflection
In short, it lets your muscle car drive like a modern performance vehicle – even with massive rubber up front.
Geometry Designed Around Big Tires
Of course, fitting a 315 is about more than just power steering. The ExtReme front suspension is engineered from the ground up to accommodate wide tires without hacking up your car.
- Optimized clearance in the frame rails and control arm layout
- Adjustable coilover shock positioning and tall spindle design
- Modern suspension geometry to support aggressive camber gain and proper caster
With this setup, you can run a 315 up front with full steering lock and stock sheet metal. No fender flares. No relocated wheel openings. Just smart engineering.
MODERN PERFORMANCE, CLASSIC LOOKS
This subframe doesn’t just solve the tire clearance puzzle. It brings modern suspension performance to your classic. Combined with the dual power rack and optimized Ackerman steering, you get:
- Virtually eliminated bump steer
- Tight steering response
- Confidence-inspiring feel on both street and track
And it’s all done with bolt-in simplicity and full compatibility with modern powertrain and brake packages.
CONCLUSION: FIT THE TIRE, FEEL THE ROAD
If you’re chasing big grip, modern handling, and serious steering precision, don’t settle for a front end that wasn’t built for it. The Speedtech ExtReme Front Subframe gives you the geometry, clearance, and steering assist to make a 315 front tire not just possible — but enjoyable.
You can check out the full product breakdown of Speedtech’s ExtReme front suspension in this video:
