Supertech

Supertech Mazda Miata 1.8L Single Valve Spring Kit - SPRK-MM18-S

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SKU:
SPTSPRK-MM18-S
UPC:
1037721241784
MPN:
SPRK-MM18-S
Availability:
Regularly stocked product
MSRP: $705.83
$564.83
— You save $141.00
Current Stock: 6

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Frequently bought together:

Description

Will these Supertech valve springs fit my car?
Confirm fitment with your specific vehicle's make, model, and year before purchase to ensure optimal compatibility and performance.

Are these valve springs difficult to install?
Professional installation is recommended to ensure precise setup and maximum benefit from these high-performance valve springs.

SPT Single Valve Spring Kits by Supertech are engineered for demanding applications, maintaining precise valve control up to 9000 RPM. Crafted with advanced metallurgy for superior durability, these retainers offer enhanced engine reliability under extreme conditions. Experience peak performance and a more responsive engine with these essential valve spring upgrades.

What Owners Say

Owners and enthusiasts report that Supertech valve springs deliver proven performance in high-horsepower applications, with some noting their dual spring kits support over 800 horsepower and 10,500+ rpm operation. The reduced mass of their beehive spring designs with lightweight retainers gets positive mentions for improved valve train control. However, the conversation around these springs often includes comparisons to GSC alternatives, with some builders expressing stronger loyalty to competing brands. There's also recognition that most enthusiasts running stock or mild builds won't meaningfully benefit from aftermarket valve springs over OEM components. Despite the competitive landscape, Supertech maintains a solid reputation among engine builders seeking reliable high-performance valve train solutions.

Why Choose the SPT Single Valve Spring Kits

Delivers superior valve control for consistent power delivery at high RPMs.

Achieves enhanced engine reliability under extreme performance conditions.

Provides increased valve float resistance for a more responsive engine.

Transforms your engine's ability to handle aggressive camshaft profiles.

Who Is This For?

Track / Autocross — 9/10
Maintains precise valve control up to 9000 RPM.

Racing Competition — 9/10
Maintains precise valve control up to 9000 RPM.

Street Performance — 8/10
Supports higher RPM for enhanced engine performance.

Engine Performance — 9/10
Precise valve control up to 9000 RPM.

Drag Racing — 8/10
High RPM capability beneficial for acceleration.

Frequently Asked Questions

Will stiffer valve springs make a difference in my engine's performance?

Stiffer valve springs deliver superior valve control, especially at higher RPMs. This upgrade is crucial for achieving enhanced engine reliability under extreme performance conditions and is highly beneficial for Track / Autocross applications with a score of 9. Experience a more responsive engine with precise valve control.

How difficult is it to install Supertech SPT Single Valve Spring Kits?

Professional installation is recommended for these valve springs and retainers. Confirm fitment with your vehicle before installation to ensure proper integration. A qualified technician will ensure the precise implementation of this performance upgrade.

Does upgrading valve springs increase horsepower?

Upgrading valve springs allows your engine to maintain precise valve control up to 9000 RPM, directly supporting higher RPMs for enhanced engine performance. This is a key factor in achieving a score of 9 for general Engine Performance. Enjoy consistent power delivery at elevated engine speeds.

What is the RPM limit for the Supertech SPT Single Valve Spring Kits?

Supertech SPT Single Valve Spring Kits maintain precise valve control up to 9000 RPM for peak performance. This capability is instrumental in the high scoring for Racing Competition use cases, rated at 9. Your engine will benefit from assured valve control at extreme speeds.

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Additional Information

Clearance Item:
N
MPN:
SPRK-MM18-S
Proposition 65:
N
Case Lot Quantity:
1
Category:
Engine Components>Valve Springs, Retainers
Universal Fitment:
Y
Track / Autocross:
9/10
Racing Competition:
9/10
Street Performance:
8/10
Engine Performance:
9/10
Drag Racing:
8/10
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