Single Mass Flywheel for BMW E30 M3 S14 2.3L

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E30 M3 JB Racing Lightweight Aluminum Flywheel

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:3768

Part#: 520-050-228

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$ 630.00 USD

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$ 630.00 USD

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Aluminum flywheels are much lighter than the stock steel flywheel and that produces better throttle response and more available horsepower to the wheels for faster acceleration. The JB Racing aluminum flywheels are a direct replacement for the stock flywheel and work with stock clutch components for an easy upgrade with very little downside.

Modern flywheels are built with additional components and features that are designed to dampen and minimize vibrations from the engine and transmission. As a result they have become bloated in weight and that means more energy is used up just making the flywheel spin. The weight difference between an aluminum and steel flywheel is huge - sometimes more than 50% less. Without the additional mass, more energy can be diverted to where it counts most - moving the car. The flywheel and clutch is one of the first areas that engine builders address when making the rotating assembly lighter for race engines. The dampening effect is just not needed on cars that are focused on performance.

In addition to releasing more power to the wheels, the lighter flywheel allows the engine to spin more freely, which improves throttle response. Again, the difference is huge as you watch the revs build faster than before. With the engine spinning easier the power band comes up much sooner. The stock steel flywheel feels lazy in comparison. There is a driving adjustment required to get used to how much faster the engine revs but that's not really a downside.

The JB lightweight flywheel is designed to be used with a factory organic clutch - the same clutch kit that you would get from any BMW dealer. This makes replacement clutch components easy to source and inexpensive when compared to specialized racing clutches. By using the factory BMW clutch, JB has also made the whole assembly easy to live with when used on the street. The clutch behaves the same as it originally did - just with better throttle response and more power! The JB flywheel can also be rebuilt with a new clutch contact surface - you don't have to buy a new flywheel.

Aluminum flywheels are considered 'single-mass' flywheels because they do not have the same dampening designs as an original 'dual-mass' flywheel. With a single-mass design more noise and vibration may be noticeable. There are steps you can take to minimize the noise - heavier weight transmission oil and clutch discs with anti-rattle springs (sprung-hub clutch).

The JB flywheel includes ignition trigger wheel.

Stock Flywheel Weight = 19.5lbs
JB Flywheel Weight = 8.0lbs

This item fits the following BMWs:
1987-1991 E30 BMW M3

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ARP Performance Flywheel 22mm Bolt Kit - S14 2.3L

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:302364

Part#: 201-2801

In Stock at Vendor

20% off MSRP $ 79.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 63.99 USD

Add to Wish List

Qty

20% off MSRP

$ 79.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 63.99 USD

Add to Wish List

ARP Flywheel Bolts are a premium grade 8740 alloy that is rated far superior to "aircraft" quality. Each stud is heat-treated, ensuring complete heat penetration, to increase the clamping load up to 200,000 psi. ARP studs are threaded after heat-treat, which gives them 1000% (that's ten times!) better fatigue strength than studs threaded prior to heat-treat. Threading the studs after heat-treating is more difficult and costly (as it's harder on tooling) but the results are well worth the effort. These simply are the best bolts we've found and we highly recommend them in any and all applications.

ARP is a company that prides itself on performance and durability, no matter the application. Offering the finest engine hardware money can buy is the driving initiative at ARP and this is evidenced by the staggering amount of satisfied customers and race teams the world over.

This item fits the following BMW Engines:
S14 2.3L

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E30 M3 Sport Evo BMW Motorsport Lightweight Flywheel

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:337968

Part#: 11221312519

Ships on Nov 25, 2026

$ 1,013.99

This product was last offered at the strikethrough price on
05-07-2026

Starting at $ 1,005.91 USD

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Starting at $ 1,005.91 USD

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This Genuine BMW Motorsport part (used on the Sport Evo M3s) is a precision machined and balanced lightweight steel flywheel. The stock flywheel weights 19.5 lbs, the Motorsport flywheel is under 12 lbs! This lightweight flywheel will allow the motor to "spool up" faster, improving acceleration. This is a perfect flywheel upgrade for someone who does not want a full aluminum lightweight flywheel and also wants factory Motorsport parts on the E30 M3. After the Turner performance chip this is the next biggest "bang for the buck" for your M3. Flywheel mounting bolts available separately.

This item fits the following BMWs:
1987-1991 E30 BMW M3

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Single Mass Flywheel for BMW E30 M3 S14 2.3L

E30 M3 JB Racing Lightweight Aluminum Flywheel

ARP Performance Flywheel 22mm Bolt Kit - S14 2.3L

E30 M3 Sport Evo BMW Motorsport Lightweight Flywheel

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