1. Introduction
The Dinan D193-0938 Supplemental Ride Quality and Handling Kit is designed to enhance the performance and comfort of vehicles equipped with Dinan performance spring sets. This kit includes specially tuned, progressive rate bump stops that optimize suspension travel, improve handling capabilities, and maintain ride quality, particularly in lowered vehicles. By preventing sudden "bottoming out" and optimizing spring rate, the kit contributes to added mechanical grip and cornering power.
2. Product Overview
The Supplemental Ride Quality and Handling Kit is an essential upgrade for vehicles with Dinan performance springs. Its primary function is to work in conjunction with the springs to provide a balanced and controlled suspension response.
Key Features:
- Includes 4 bumpstops: The kit provides a complete set of four bump stops for comprehensive vehicle coverage.
- OE quality material: Bumpstops are manufactured from Original Equipment (OE) quality material, ensuring durability and consistent progressive characteristics.
- Tuned for Dinan springs: Each bumpstop is carefully tuned to integrate seamlessly and optimize performance when used with Dinan performance springs.
Figure 2.1: Overview of the four bump stops included in the kit.
3. Installation
Installation of the Dinan D193-0938 Supplemental Ride Quality and Handling Kit requires specialized tools and automotive knowledge. It is highly recommended that installation be performed by a qualified professional technician.
General Installation Notes:
- This kit is specifically designed for A90 / A91 chassis vehicles.
- The kit is intended to be paired with Dinan performance spring sets for optimal results.
- Installation involves accessing and replacing the vehicle's existing bump stops within the suspension system.
- An alignment is recommended after installation to ensure proper vehicle handling and tire wear.
Estimated Installation Time:
- If installed as a standalone kit: Approximately 7.9 hours, including a full vehicle alignment.
- If installed concurrently with a corresponding Dinan Spring Set: The additional labor time for the bump stops will be negligible, as much of the suspension disassembly is already required for spring installation.
Figure 3.1: Detailed view of a single bump stop component.
Figure 3.2: Alternative angle of a single bump stop, highlighting its construction.
4. Operating Principles and Benefits
The supplemental ride quality and handling kit works by providing a progressive resistance as the suspension compresses. Unlike traditional bump stops that can cause an abrupt stop, these tuned bump stops gradually increase resistance, allowing for maximum suspension travel even with a lowered vehicle.
Benefits:
- Improved Ride Quality: Minimizes harsh impacts and sudden "bottoming out" sensations, leading to a smoother ride over varied road surfaces.
- Enhanced Handling: Optimizes the effective spring rate during compression, which translates to better mechanical grip and increased cornering power.
- Maximized Suspension Travel: Allows the suspension to utilize its full range of motion, even after lowering the vehicle, preventing premature engagement of the bump stops.
- Increased Durability: Protects suspension components from excessive stress by cushioning severe impacts.
5. Maintenance
The Dinan Supplemental Ride Quality and Handling Kit is designed for long-term durability and typically requires minimal maintenance once installed. However, regular inspection of your vehicle's suspension components is always recommended.
Recommended Checks:
- During routine vehicle inspections or oil changes, visually inspect the bump stops for any signs of cracking, tearing, or excessive wear.
- Ensure that the bump stops are securely seated and not dislodged.
- If any damage is observed, consult with a qualified technician for assessment and potential replacement.
6. Troubleshooting
While the Dinan Supplemental Ride Quality and Handling Kit is designed to improve suspension performance, certain issues might arise that are related to the overall suspension system.
Common Suspension-Related Concerns:
- Excessive Bouncing or Harshness: This is typically indicative of worn shock absorbers or struts, or incorrect spring rates, rather than an issue with the bump stops themselves.
- Unusual Noises (Clunking/Squeaking): Could indicate loose suspension components, worn bushings, or issues with other parts of the suspension system. Inspect all connections.
- Uneven Tire Wear: Often a sign of improper wheel alignment, worn suspension components, or incorrect tire pressure. An alignment is crucial after suspension modifications.
If you experience any of these symptoms after installation, it is recommended to have your vehicle inspected by a professional automotive technician to diagnose the root cause.
7. Specifications
| Specification | Detail |
|---|---|
| Manufacturer | Dinan |
| Brand | Dinan |
| Model Number | D193-0938 |
| Item Weight | 2 pounds |
| Product Dimensions | 8 x 6 x 4 inches |
| ASIN | B0C5BNHKDH |
| Date First Available | November 16, 2022 |
8. Warranty and Support
Specific warranty information for the Dinan D193-0938 Supplemental Ride Quality and Handling Kit is not provided within this manual. For details regarding product warranty, technical support, or replacement parts, please refer to the official Dinan website or contact Dinan customer service directly.
It is recommended to retain your purchase receipt for warranty claims.
