Losi Tenacity DB Pro Upgrades to Enhance [Performance & Durability]

Last Updated on December 15, 2023 by Jaxon Mike

The Losi Tenacity DB Pro is a 1/10 scale 4WD electric short-course truck designed for bashers and backyard racers. Right out of the box, it comes equipped with many great features like a brushed motor, waterproof electronics, and composite suspension arms.

However, for maximum durability and enhanced speed and handling, owners often look to install aftermarket upgrades and mods. In this article, we’ll explore some of the most popular and effective upgrades for the Losi Tenacity DB Pro.

Overview of the Losi Tenacity DB Pro Stock Specs

Before diving into potential upgrades, let’s first take a look at some key specs and details on the Tenacity DB Pro in its stock configuration:

• Motor: 540 brushed motor
• ESC: Waterproof brushed electronic speed control
• Transmission: All metal geared transmission
• Suspension: Independent suspension with composite lower arms
• Shocks: Plastic shock bodies with silicone oil
• Chassis: Composite tub chassis

The Tenacity DB Pro is designed for backyard bashing and entry level racing right out of the box. It’s durable and provides decent speed and handling on a variety of surfaces.

However, more hardcore bashers and racers often look to aftermarket parts to boost the truck’s capabilities even further.

Chassis and Suspension Upgrades

One of the most popular upgrade areas on the Tenacity DB Pro is the chassis and suspension. Stock plastic suspension arms can bend or break under hard crashes or when using extremely powerful brushless motors.

Upgrading to metal arms improves durability. Here are some top chassis and suspension upgrades:

Metal Chassis Conversion Kit

For maximum rigidity and durability, the ultimate upgrade is converting the composite tub chassis to a metal frame.

Companies like STRC make complete 4mm aluminum chassis conversion kits specifically for the Losi Tenacity platform. This upgrades all the chassis parts to machined aluminum and also converts the suspension arms to metal.

Oil Filled Shocks

While the stock shocks perform decently, upgrading to oil filled aluminum shocks dramatically improves damping and handling. Companies like Hot Racing make complete shock sets with threaded shock bodies and oil for the Losi Tenacity.

Chassis Braces

Adding a front and rear chassis brace from aluminum or carbon fiber improves chassis rigidity and stability, especially helpful if running brushless power.

Extended Suspension Arms

Longer rear suspension arms change the suspension geometry, increasing stability and preventing rollovers when running brushless systems and jumping. STRC makes extended rear arms and pivots for the Tenacity.

Upgrading the chassis and suspension makes the truck more durable for hardcore bashing and also improves stability and handling for faster driving. Carefully researching compatibility is important when upgrading these areas.

Drivetrain Upgrades

Another very common upgrade area on the Tenacity DB Pro is the drivetrain. This includes the motor, ESC, differentials, driveshafts, and more. Upgrading these components boosts speed, acceleration and traction.

Brushless Motor and ESC

One of the easiest ways to dramatically increase speed and power is converting to brushless power. A 3500-4000kv brushless motor combined with a 120A+ ESC like the Hobbywing Max10 SCT considerably improves speed, acceleration, and efficiency over the stock brushed system.

Metal Drivelines

The composite center driveshaft and bones can struggle to handle extreme brushless power. Upgrading to metal driveshafts and bones improves durability and reliability under high power. Hot Racing makes full metal driveline sets for the DB Pro.

Locked Differentials

For improved traction and drivetrain durability, upgrading the differentials to locked units is recommended for high traction surfaces like racetracks. This prevents differential gear slippage under hard acceleration.

Aluminum Motor Plate

An aluminum motor plate improves cooling and holds the motor more securely in crashes. Companies like STRC make direct replacement aluminum motor plates for the Tenacity DB Pro.

Switching to brushless power makes a huge difference in speed and acceleration. But you must carefully match components and upgrade drivetrain parts to handle the extra torque and power.

Electronics Upgrades

Besides the drivetrain and chassis, upgrading the electronics is also very beneficial for performance and convenience. Popular electronic upgrades include:

Higher Voltage Batteries

Stock, the Tenacity DB Pro uses a 7.2V NiMH battery pack. Switching to a higher voltage 2S LiPo pack like a 7.4V 5000mah dramatically increases speed and run times. Just be sure to properly manage and charge LiPo packs.

Aftermarket Radio Systems

The stock radio works fine, but upgrading to an aftermarket 2.4GHz 3+ channel radio system allows for features like dual rates and more adjustability. Radios from FlySky and Futaba work great.

LED Light Kits

For night running or trail rides, installing LED light kits greatly improves visibility and looks cool. Most kits are plug and play with no splicing required.

Tips for Planning and Installing Upgrades

When upgrading any RC vehicle like the Losi Tenacity DB Pro, having a plan and following some best practices will ensure success:

Prioritize Upgrades

It’s easy to get carried away buying every upgrade part available. Focus first on fixes for known weaknesses or breakages. For example, address brittle plastic suspension arms before randomly upgrading the motor and ESC.

Research Compatibility

Not all aftermarket parts are truly plug and play. Carefully research dimensions and specs to ensure chassis, suspension, and drivetrain upgrades properly fit and work together. Consult forums and reviews for real world fitment advice.

Consider Difficulty of Installation

Some upgrades like installing a brushless system require advanced soldering skills. Other bolt-on upgrades like chassis braces are easier. Match your skill level to the installation difficulty.

Budget Accordingly

This hobby can get expensive fast! Set a reasonable budget and stick to it. Focus on a few meaningful upgrades versus a bunch of random parts. Quality over quantity.

By planning upgrades carefully, researching compatibility, budgeting wisely, and developing installation skills, you’ll get the most out of modifying your Losi Tenacity DB Pro.

FAQs Regarding Losi Tenacity DB Pro Upgrades

What upgrades provide the biggest performance gain?

Switching to brushless power provides the biggest speed boost. A metal chassis conversion gives the most durability. Oil shocks enhance handling the most.

Should I upgrade the truck before I even run it stock?

It’s best to get some runs on the stock setup to establish a baseline. Note any weaknesses or breakages to prioritize upgrades.

Is it worth switching to LiPo batteries?

Yes, LiPo packs provide way more power and runtime. Just be sure to use a LiPo compatible ESC and charger. Never leave charging unattended.

Can I upgrade the stock ESC or do I need a new brushless ESC?

You will absolutely need a brushless specific ESC to run a brushless motor. The stock ESC is only for brushed setups.

Should I upgrade all suspension arms to metal?

The rears are most prone to bending so definitely upgrade those. Fronts can stay composite to allow some flex and absorb impacts.

Conclusion

The Losi Tenacity DB Pro provides great bang for your buck right out of the box as a backyard basher. But for enthusiasts looking to boost speed, durability, and handling, upgrading key components takes the truck to the next level.

Carefully upgraded with brushless power, a metal chassis conversion, and high end shocks, the Tenacity can compete with trucks costing much more. The possibilities are endless when upgrading this capable platform.

Just be sure to research compatibility, budget wisely, and develop mechanical skills. With some thoughtful upgrades, the Losi Tenacity DB Pro can become an absolute beast of a basher!