Springs & Bump Stops
Engineered to the Earnhardt standard, our spring coil and bump stops are built to manage weight transfer, absorb load spikes, and keep your suspension predictable under real race pressure. Every rear coil spring, coil spring suspension component, and shock bump stop is machined and spec’d for consistent rate, proper rebound characteristics, and repeatable performance through heat cycles and chassis roll. We use top-quality materials, tight tolerances, and precision-fit hardware to reduce bind, maintain geometry, and deliver the stability your setup demands. And like every ETG component, these parts go through months of rigorous R&D across multiple tracks and conditions before earning a place on our site.
FAQs
How do I choose the right spring coil or bump stops for my setup?
The right spring coil or bump stop depends on what the car is doing now. Take your chassis weight, how the suspension moves, and the track surface you’re running. From there, you match the spring rate and bump stop feel to keep the car balanced through the lap. If you need another set of eyes on it, we can help you sort through the options.
What’s the difference between a rear coil spring and a front coil?
Front coils deal with the hit when you get on the brakes and when the car takes a set. Rear coil springs decide how much drive you get and how the car rotates up off the corner. Pick your springs based on what the car is doing, not just what’s written on the tag.
When should I use a coil spring booster or coil spring insulator?
Boosters allow small ride-height or rate adjustments without swapping the full spring. Insulators reduce noise and vibration while improving spring longevity by preventing metal-to-metal contact.
How do bump stops improve suspension performance?
They control excessive suspension travel, reduce bottom-out, and stabilize the chassis under heavy load. This keeps the car composed during cornering, braking, and rough track transitions.
Can ETG springs and bump stops handle high-stress racing?
Yes. Every component is run through controlled bench testing, heat cycling, and months of R&D across multiple tracks and environments before reaching our site.
What tolerances and materials do ETG coil spring suspension components use?
Springs and bump stops are manufactured with tight machining tolerances and proven materials chosen for strength, rate consistency, and durability through repeated compression cycles.
Can ETG help me tune my spring and bump stop combination?
Absolutely. Our team can walk you through picking the right coils, boosters, and bump stops based on your chassis, track, and driving style.
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At Earnhardt Technologies Group, racing is in our DNA. Every component is precision-machined in Mooresville, NC, built to endure the toughest conditions on the track.