V35A-FTS Tuning: Pros and Cons of a Remap – V35A-FTS ECU remap

Date October 13, 2025
Category
Car Engines, Auto Repair, Car Tips, Uncategorized
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V35A-FTS Tuning: Pros and Cons of a Remap – V35A-FTS ECU remap

V35A-FTS Tuning: Remap Advantage and Disadvantage – Get More Power from Our V35A-FTS Engines

The V35A-FTS is a modern engine design wonder of engineering. Toyota built it and used it in upscale models such as the Toyota Land Cruiser 300 and Lexus LS500, and the V35A-FTS is a twin-turbocharged 3.4L V6 that walks a line between performance, fuel economy, and durability. We’re going to blow your mind, though, if we said there’s more to the motor than stock. V35A-FTS ECU remap

Here we are looking at V35A-FTS tuning and, more specifically, ECU remapping, in order to discuss the pros and cons of unlocking the potential of this beast. If you’re a enthusiast looking for a bit more from it, or a professional tuner, then it is well worth knowing how a remap will impact things on the road.

And the cherry on top – we’re selling you the entire V35A-FTS engine with tuning options installed. So if you want to replace, upgrade, or swap what you currently have, then you’re in the right place.

What is the V35A-FTS Engine?

Take a quick glance at why the V35A-FTS is unique before we discuss the tuning.

🔧 V35A-FTS Key Specifications:

  • Engine Code: V35A-FTS
  • Displacement: 3.4L (3444 cc)
  • Configuration: V6
  • Aspiration: Twin-turbocharged
  • Fuel System: D-4ST (Direct and Port injection)
  • Maximum Power: Approximately 415 hp (309 kW) @ 5200 rpm
  • Maximum Torque: 650 Nm @ 2000–3600 rpm
  • Compression Ratio: 10.5:1
  • Valvetrain: DOHC, 24-valve
  • Turbochargers: 2x single-scroll turbo
  • Vehicles: Lexus LS500, Toyota Tundra, Land Cruiser 300, Toyota Sequoia

This engine is part of Toyota’s Dynamic Force engine family and is extremely well-respected in terms of reliability, performance, and efficiency – and hence is a highly solid choice for performance builds and upgrades.

➡️ Want one? We’ve got V35A-FTS motors available in tuned or unbolted form.

What is ECU Remapping?

ECU remapping (or “chip tuning”) is a computer programming modification of the engine control unit (ECU). The ECU governs a great deal of the engine’s operation such as:

  • Air-fuel ratio
  • Ignition timing
  • Turbo boost pressure
  • Throttle response
  • RPM limiters

Tuners can coax extra horsepower, torque, and efficiency from the engine by adjusting these parameters.

Using a solid foundation like the V35A-FTS, the payback for remapping is significant.

V35A-FTS ECU Remap: What Gains?

1. Horsepower and Torque Gain

The most glaring benefit is horsepower. Through optimized fuel injection, ignition timing, and turbo boost, the V35A-FTS will give you:

  • 80+ HP increase
  • 120+ Nm of torque gain

This will depend on configuration, octane, and remapping talent but the V35A-FTS maps well.

2. Better Throttle Response

ECU remaps can genuinely make throttle response come alive, especially on turbo-charged engines. The V35A’s twin turbos spool up anyway, but with parameter settings, the lag is reduced and the power gets delivered straight.

3. Better Fuel Economy (In Some Cases)

While many people think that tuning always sacrifices fuel economy, that is not necessarily the case. Well-optimized ECU can lead to better combustion and modest fuel saving, especially under cruising.

This is particularly beneficial if you’re towing, doing off-road, or touring with the engine.

4. Unlock Aftermarket Mods

When fitting aftermarket turbos, exhausts, or intercoolers, the factory ECU map won’t be best suited for them. With a remap, your V35A-FTS will be able to match up with these mods and maximize them.

5. Customization

The perfect configuration for one driver is another driver’s compromise. You can optimize your engine performance with a remap:

  • Sport mode calibration
  • Launch control
  • Speed limiter removal
  • Gearbox adjustment (if being done in combination with automatic transmission ECU adjustment)

V35A-FTS Tuning: Possible Drawbacks

With advantages, tuning also has drawbacks. Let’s discuss some of the largest benefits and drawbacks to weigh before you remap a V35A-FTS ECU.

1. Warranty Void

Remapping technically voids the warranty of the manufacturer. In the event that your engine is under warranty, you are warned because some dealerships can even detect a remap even when you’ve been rolled back stock.

2. Engine Stress Elevated

There is added stress on the engine’s internal components with more horsepower and boost. Tough as the V35A-FTS engine is made, maintenance is that much more important when the engine is tuned.

Tip: Never combine tuning with revved cooling systems and low-grade oil.

3. Fuel Requirements

The performance tunes usually require premium fuel (91–98 RON). Low-grade fuel combined with a tuned ECU map will lead to knock and engine destruction.

4. Requires Expert Tuning

Not all tuners are created equal. A crappy map will kill your engine. That’s why we leave it to the specialists – us. We provide pre-mapped ECUs with our V35A-FTS engines or can provide custom tune options.

Is the V35A-FTS Capable of More Power?

Yes. The V35A-FTS engine is factory over-stressed, so it’s okay to bump the power there. Factory internals can typically handle 550–600 hp with the supporting mods and tuning.

Others have gotten over 600 hp with:

  • Larger turbos
  • Forged internals
  • Methanol injection
  • Full exhaust and intake work

But for reliability in the long haul, it’s safer to remain mild unless replacing internals.

Recommended V35A-FTS Tuning Upgrades

To enable your remap to safely support and optimize performance, add the following items:

  • Performance Intercooler: For intake temperature reduction
  • High-Flow Air Intake System
  • Stainless Exhaust System (Turbo-back)
  • ECU Piggyback or Flash Tune Module
  • Catch Can / PCV System
  • Upgraded Fuel Injectors (on high boost engines)
  • Oil Cooler / Radiator Upgrade

Need a turn-key tuned package? We even sell turn-key V35A-FTS engines with upgrades and tuning pre-installed.

Who Should Get a V35A-FTS Remap?

A remap is perfect for:

  • Performance Enthusiasts: Wanting to over-boost their project
  • Swappers: Filling the V35A-FTS into a project build
  • Off-Roaders & Overlanders: Needing torque & efficiency
  • Tuners & Shops: Looking for a reliable performance engine for customer project

Why Purchase the V35A-FTS from Us?

Not only do we stock the full V35A-FTS engine, but we also offer:

✅ Professionally remapped ECU options
✅ Performance packages with bolt-on mods
✅ Engine warranties available
✅ Worldwide shipping
✅ Tuning guidance and support

We offer to race teams, individuals, and workshops worldwide. Do you need a stock engine, performance engine, or full-built package? You’re in the right place.

V35A-FTS Engine Swap: Worth It or Not?

Installing a V35A-FTS into a car can completely revamp your build. Its much smaller footprint than with old V8s and twin-turbo pressure, it’s the ideal choice for:

  • Drift builds
  • Off-road trucks
  • Performance sedans
  • Restomod projects
  • Toyota or Lexus swaps

And in addition to our remap service, the engine is then made into a plug-and-play performance package.

Conclusion: Is Tuning the V35A-FTS Worth It?

Yes – but only if it’s done properly.

The V35A-FTS is an excellent platform that does wake up after having been tuned. An ECU remap can produce monstrous gains in power and torque without compromising on driveability and fuel efficiency.

But with all this performance enhancement comes at the price of – increased stress and requirement of quality fuel and components.

And that is why we don’t just sell you the motor – we guarantee it. From crate motors directly from the factory to turn-key performance engines, we provide tested and proven, tried, trusted V35A-FTS spec with backup and support.

Upgrade Ready???

If you’re a builder in need of a turbocharged engine or a tuner in need of horsepower, our V35A-FTS engine packages are the place to start.

🚚 Available Now – Call For Price & Shipping

  • V35A-FTS Engines (Stock & Tuned)
  • Remapped ECU Options
  • Performance Upgrades Available

⚙️ Tuning. Performance. Power. It all starts with the V35A-FTS.

We’d be happy to help you unlock your build’s full potential.

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