Motorsport Auto

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Part #:24-5705

Price: $549.95

Note: Specifically engineered 260Z-280Z kits now available! See Related Items.

Don't Be Fooled By Cheap Knock-Offs!

Our 4-piston caliper kits were developed by an independent engineer who is also a Z racer. His design and fabricating skills are unparalleled. The parts he produces for us use only the highest-grade materials and aerospace-quality finishes.
Poorly designed cheap imitations made from inferior grade materials can cause major problems. For instance, using a rough spacer in place of a Z-specific hub-centric adapter can cause excess tire wear and balancing issues that could lead to more serious mechanical failure.
Other kits with simple spacers, since they are not concentric, will require significant effort checking and adjusting for runout after installation. Since the alignment is only held by the screws, if you hit a pothole or a curb, you could knock the rotor out of alignment and have to do it all over again (every time), or even initiate an imbalance that could cause hub & wheel failure, risking you and your Z. It takes more material (money), machining time (money), and tooling fixtures (money) to create a properly engineered adapter like these, but they could pay for themselves by the lack of hassle, or even by avoided damage (or worse).
We will never sell brake or suspension components that put you or your ride at risk. Remember, an inexpensive part is no bargain if it costs you your Z, or worse. Don't cheap out on your safety!

Includes:

(1) XL Four Piston Caliper Kit*

Description:
XL 4-Piston Calipers Kits originated right here at Motorsport in 2003. We're reintroducing these well-known kits, which were engineered specifically for OEM 240Z front wheel hubs. We made a better deal on some of the components, so have been able to drop the price significantly. As has already been well-proven since the first 240Z-hub XL Brake Kit in 2003 (exclusive to Motorsport), this Kit offers dramatically increased braking power for your Z by using larger four piston calipers, vented 84-85 300ZX Non turbo brake rotors (not included in this base kit, but see Related Items for Stage 1 & 2 kits that do include Rotors at a significant discount!), and stainless steel brake lines. The custom, 100% USA made Z-Specific, Hub-Centric Brake Rotor Adapters make it all possible. Keep reading below for details about the custom-engineered adapters (click thumbnails below for larger images).

*Kit Includes:

(2) Custom Engineered, 240Z-Specific, Hub-Centric Brake Rotor Adapter
(2) XL Front Brake 4-Piston Caliper
(8) Grade 8.8 Cad Plated Rotor Bolt & Lock Washer
(2) Custom Stainless Steel Brake Line
(1) Street Performance Brake Pad Set

Custom Engineered 240Z-Specific Hub-Centric Brake Rotor Adapters:
More than simple spacers, these Brake Rotor Adapters were engineered for proper hub-centric mating between the rotor and the hub, like the factory OEM design. The adapter creates multiple points of contact with both the wheel hub and the brake rotor for safe and secure alignment that won't vibrate loose once bolted together. This design sets the alignment and concentricity of the rotor to the hub, similar to both the original brake rotor and even modern car wheels. All of our front brake adapters are precision machined from 6061-T6 Aerospace aluminum, then nickel plated to AMS 2404 (AMS-C-26074) Mill Specifications to make the highest quality (and best looking) adapters on the market by a wide margin. The engineer behind these adapters even took rotational mass into account and lightened them as much as possible while keeping correct structural integrity.

Brake Line Note:
The custom Stainless Steel Brake Lines included in this kit replace both the OEM rubber hoses and metal bridge tubes. The lines go from the main metal brake lines directly into the calipers.

Brake Pad Note:
The included brake pads are great for everyday and street performance use. Looking for higher performance brake pads for heavier street or racing use? See 24-5522, 24-4959, or 24-4919 in Related Items, or give us a call.

Wheel Hub Note:
Even before we started offering this kit, we had seen many instances of wheel hubs being interchanged between early and late S30 models. This kit can be used on any S30 model with 70-73 style "scalloped" wheel bearing hubs. Therefore, if you haven't checked already, please confirm which hubs are currently installed on your Z prior to ordering. Click on the image below for a simple comparison.

Model Guide:
Datsun 240Z

Code Guide:
Datsun S30

Year Guide:
1970, 1971, 1972, 1973

Support Independent Z Engineers!
Please support the local independent engineers that bring so many great products to the Z Community. The same Engineer that did the original research to come up with the first 4-Piston Caliper Conversion, also brought these great brake upgrade adapter kits to Z Enthusiasts everywhere. Some unscrupulous individuals have taken these custom adapters & sent them to China to have them copied with inferior materials and missing design features.
This local engineer personally crafts the custom adapters himself, right here in Southern California, with materials made in the USA. Nobody comes close to his design, quality, and accuracy. Support his contribution to the Z Community by buying the originals, so this great asset to all Z Enthusiasts can continue to create great new products for the Z-Car. Thank you.