2026 Hybrid 4Runner Dyno results - Custom tune vs stock (+71whp/97wtq)

[Rod Man 63]

Understood.

Good answer to the question.

Thanks,

RM

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[Dead Horse]

Understood.

Good answer to the question.

Thanks,

RM

Also keep in mind that they can 100% deny any warranty claim on anything from the engine all the way down the drivetrain to the differentials for a tune because it causes the engine to operate outside of design specifications and that could cause a failure.

You could try to sue them...But 1-You will likely be forced to go to arbitration first and 2-The attorney fees for you will be far more than your failure costs and a rounding error to them.

Not saying that the tune will cause a failure (tunes can absolutely grenade engines/hard parts), or that it will be denied...But if you're concerned about it, go into it with open eyes.

I don't know about Toyota, but GM and Ford absolutely check for tunes and will deny claims instantly. Even if you flash it back to stock...They check to see when the last time it was accessed was...If it wasn't documented service...*BOOP* denied.

 

[CAMTuning]

Also keep in mind that they can 100% deny any warranty claim on anything from the engine all the way down the drivetrain to the differentials for a tune because it causes the engine to operate outside of design specifications and that could cause a failure.

You could try to sue them...But 1-You will likely be forced to go to arbitration first and 2-The attorney fees for you will be far more than your failure costs and a rounding error to them.

Not saying that the tune will cause a failure (tunes can absolutely grenade engines/hard parts), or that it will be denied...But if you're concerned about it, go into it with open eyes.

I don't know about Toyota, but GM and Ford absolutely check for tunes and will deny claims instantly. Even if you flash it back to stock...They check to see when the last time it was accessed was...If it wasn't documented service...*BOOP* denied.

They can also deny drivetrain warranty for lifts, larger wheels and tires, etc.

 

[jimr]

Seems like playing with fire.

 

[Vincenzo]

Also keep in mind that they can 100% deny any warranty claim on anything from the engine all the way down the drivetrain to the differentials for a tune because it causes the engine to operate outside of design specifications and that could cause a failure.

You could try to sue them...But 1-You will likely be forced to go to arbitration first and 2-The attorney fees for you will be far more than your failure costs and a rounding error to them.

Not saying that the tune will cause a failure (tunes can absolutely grenade engines/hard parts), or that it will be denied...But if you're concerned about it, go into it with open eyes.

I don't know about Toyota, but GM and Ford absolutely check for tunes and will deny claims instantly. Even if you flash it back to stock...They check to see when the last time it was accessed was...If it wasn't documented service...*BOOP* denied.

Could they void a warranty for dissecting electrical components? With the complexity of electrical and CAN Bus operated components, I’d think it would be a slam dunk for them

 

[Joey_Midnight]

Crazy gains, whats peak boost on the recalibration?

 

[CAMTuning]

Crazy gains, whats peak boost on the recalibration?

17 psi

 

[Gator 22]

Do you know if fuel milage was increased too?

 

[CAMTuning]

Do you know if fuel milage was increased too?

He says it is about the same as before.

 

[Macaque]

That’s a wild increase in peak torque. I’d be very concerned with overstressing the entire bottom end and the trans, and honestly even the top end.

That turbo must be doing a LOT of work that low in the rev range. What do you think your margin to the surge line is? Mind sharing wastegate duty data?

 

[CAMTuning]

That’s a wild increase in peak torque. I’d be very concerned with overstressing the entire bottom end and the trans, and honestly even the top end.

That turbo must be doing a LOT of work that low in the rev range. What do you think your margin to the surge line is? Mind sharing wastegate duty data?

Good questions. This is the hybrid, so that low-RPM torque number isn’t coming entirely from the turbo. The electric motor is contributing quite a bit in that area too.

I’ve pushed my own development truck considerably harder than this calibration, and on these dyno pulls wastegate duty never gets above about 50%, so the turbo isn’t being worked anywhere near its limit.

I don’t have a published compressor map for this turbo, so I can’t give you a meaningful surge-line margin number. What I can look at is the actual data from the truck — boost control, airflow, load/torque, fueling, knock behavior, temperatures, etc. — and everything looks healthy.

Same with the engine and transmission. I’m still working within the factory torque-management and protection strategies rather than just removing limits and asking for everything the hardware can make.

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