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How can you make the world's best suspension leveling kit even better? Easy, make it tuneable to any road (or off-road) conditions with the flip of a switch. What? Yes, you read that right, an electronically controlled suspension system. Carli Suspension has teamed up with SDi to offer Carli spec'ed shocks that are electronically controlled via an interface that is mounted inside of the cab. The E-Venture system stays two steps ahead of the driver thanks to data input from a provided engine mounted sensor and factory sensors via the OBDII port. The in-cab mounted “Brain” of this system processes the information through a proprietary algorithm. Thanks to this cornucopia of electronic goodness, the E-Venture System reads and reacts the terrain 250 times per second. The resulting ride is the Best. The “best” is an absolute statement… On road? Off Road? Gravel? Rutted, pot-hole filled unmaintained lease roads? Yes… Yes to all of it. The systems takes the capability of a 2.5″ Shock well beyond the threshold anyone has come to expect!
The shocks themselves are top-tier construction. Hard-anodized aluminum bodies and reservoirs paired with 17-4 stainless shock shafts will stand the test of time and elements. Billet rod ends house Teflon lined bearings to ensure industry leading performance and longevity.
ELECTRONIC CONTROL UNIT
The “Brain” of the system is the ECU (Electronic Control Unit). The ECU Harness uses a large OEM-style connector with a rocker linkage to ensure it remains secured once fastened. Carli played with a few mounting locations during the initial R&D process and the heat-cycling of the initial under-hood location proved detrimental to the ECU’s operable temperature range. To alleviate this issue, they redesigned the harness to accommodate an in-cab mounting location (under the driver’s seat) and completely solved the issue.
The ECU Harness is home to the connectors for the 4 harnesses in the system that allow all transmission of power and data. All connectors are unique to ensure connections to the ECU can’t be mixed up.
- Front Shock Harness: Male connection on the harness, Female on ECU harness. Connects 2 front shocks to the ECU.
- Rear Shock Harness: Female connection on harness, Male on ECU harness. Connects 2 rear shocks to the ECU.
- Power Harness: Wires power and ground for the system and includes a fuse tap to indicate ignition power to the system.
- Communication Harness: OBDII, Touch Screen, and IMU Sensor Connections all feed into ECU.
Via the communication harness, the ECU accesses data from the engine mounted IMU (Inertial Measurement Unit). This unit senses any change in pitch/roll of the vehicle. The data from this IMU combines with information gathered from the OBDII port (Brake Pressure, RPM, Steering Angle, Throttle, etc.) to anticipate changes in chassis movement. Subsequently, it firms and softens the shocks where necessary to maintain a chassis that’s as level as possible.
The most important part of the interface is the one with which you interact. SDI put in a TON of work here to ensure a user-friendly interface with clean integration, and Carli worked with them to take it a step further. The bracket and touch screen mount in place of the bottom grab-handle bolt cover placing the touch screen both visible and out of the way. Also provided is a longer bolt to secure the screen. This location allows for clean routing of the wiring harness that feeds the touch screen without the need to trim the grab handle or weather-stripping.
Carli worked with SDI to refine the drive modes, wanting to increase the seat-of-the pants change between each mode. Offered on the E-Venture System are Mountain (Rock-Crawl), Street and Desert Modes. This is in order from softest/least sensitive to most controlled/active. These modes have been EXTENSIVELY refined; there’s nothing standard about them. All you need to do is select the mode and the system will activate the profile instantaneously.
Within each of the above modes, users can refine the ride to their taste and it will auto-save the profile. There are adjustments for the front and rear shocks independently to increase control or comfort within each of the drive modes. Carli tuned and refined their own recommended settings to be centered on ALL drive modes but that doesn’t mean you won’t prefer to run the front in the center of the adjustment and rear all the way toward comfort. Point is, it’s completely up to you!
This mode takes it a step further for those that like to get nerdy. This mode allows users to adjust the Pitch, Roll, Brake, Throttle and Steering Response. Don’t worry, if your curiosity gets ahead of your knowledge or you failed to track your changes, there's a “Restore Default” setting.
While driving, the screen is defaulted to your interface showing the real-time correction at each corner. Numerical values between 0-10 show the adjustment intensity. You’ll notice these numbers change in speed of correction and amount of correction as the drive modes are altered. Swipe the screen to the right and you’ll find the roll/pitch read-out indicating the data being fed by the IMU. This screen is also dimmable to a few different brightness to avoid distraction for those long, late-night drives where you won’t be looking at the touch screen.
Arguably the most handy feature is the Rear Load Adjustment. This gives the user incremental control over the rear dampers. When loaded, the rear can be adjusted to find the balance of comfort and support, or even max the rear support to prioritize load support. This adjustment makes a huge difference in the rear control when loaded; this will likely be the most championed feature.
The truck will sit 3.5” higher in the front (1.5″ if it’s a Tremor) and have more wheel travel thanks to the lighter rate Carli Coil Springs. The Adjustable Track Bar centers the front axle and Stainless Brake Lines firm up braking and ensure there is enough line for the newfound travel. To round off the front end, also included are Caster Shims to tighten the steering and a fabricated, High-Clearance Bump Stop Drop to keep the springs clear from contacting the factory bump stop.
The E-Venture system has been optimized to run with a Carli Torsion Sway Bar; this is highly recommended as it lightens the most commonly neglected spring rate – the factory sway bar. From the Torsion Sway bar upgrade, one can expect a far more compliant feel and increased articulation with only slightly more body roll.
The rear should be optioned with the replacement Full Progressive Spring Pack (reduces capacity to a “light” 3/4-ton) for optimal performance.
WHEEL AND TIRE
Factory Wheels SHOULD NOT be run with oversized tires. They’re known to rub the radius arm, sway bar and most concerning – Brake Lines. Factory tires and factory wheels will work without issue but it is not recommended running oversized tires on factory wheels. For this kit, Carli recommends 17”-18” wheels, no more than 9” wide with 5.5” of backspacing with Carli Fabricated Radius Arms or 5” Backspace with factory arms; 5” will require a bit more trimming. Tires, 37×12.5” will fit with some trimming; 35” will likely fit without trimming. The more rubber, the better the small bump compliance will be at proper inflation pressures. The ride will firm up as you go larger in wheel diameter.
- ManufacturerCarli Suspension
- Lift Height: 3.5"
- Front Travel: 8"
- Rear Travel: 13"
- Shock Diameter: 2.5"
- Tire Fitment: 37" x 12.5"
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