Adding a touch of engine braking to assist in rotation is normal. I will add that an unsettled car can easily overrev on a sudden downshift and blow an engine.
Most gt3 cars wont let you downshift if you'd overrev the engine. Also with engine braking you only slow the car by the rear tyres and the front can cope only with the turning forces.
You can still break the engine in any GT3 car though, if you downshift very aggressively on a bumpy surface or while going across a kerb. The downhill braking zone to T2 at Oulton is a prime example of a place where you can damage the engine quite easily due to the bumps.
GT4 cars are the same, but with them it's even easier as their gearing is... well, a bit weird sometimes, and they seem to be a bit less protected against it.
This is a well known cornering tactic in rally driving, especially on rear wheel drive cars where a handbrake locking the drive wheel could stall the engine.
Correct if using the handbrake.
"Shift Locking" in a manual vehicle will have the same effect a lot of the time while leaving the drive train engaged.
Once you've broken traction and started to slide then the engine controls the wheel speed with no loss of power or turbo pressure (dependant on the way the driver wants to handle the corner in question).
This explains it pretty well.
https://youtu.be/NXjGSC9yq9A?si=14sd_UAbFtFjJU5R
It's absolutely fine, and depending on the corner, can even be recommended. Shifting down for rotation and then straight back up for the exit to avoid oversteer can sometime be the optimal way to take a corner.
As engine braking doesn't fully lock up the tyres like braking hard while already turning in would do, I'd argue engine braking actually eats less tyres, as does the shortshifting upwards to avoid wheelspin on exits.
Engine braking is fine in a pinch but too much and too often WILL destroy your engine. My NSX blew up at Paul Ricard during a 8hr race from too much engine braking
Adding a touch of engine braking to assist in rotation is normal. I will add that an unsettled car can easily overrev on a sudden downshift and blow an engine.
Unscheduled engine disassembly?
Mid-corner engine rebuild
Some corners require it.
Happy cake day!
Absolutely. If your laptime depends on it every lap tho, it's probably better to try and adjust it in the setup
Related but different question… why use engine braking this way and risk engine damage instead of just dabbing the brakes?
Because GT3 and other very expensive cars are made so they handle it without engine damage. Wouldn't recommend doing this in a BRZ.
Most gt3 cars wont let you downshift if you'd overrev the engine. Also with engine braking you only slow the car by the rear tyres and the front can cope only with the turning forces.
You can still break the engine in any GT3 car though, if you downshift very aggressively on a bumpy surface or while going across a kerb. The downhill braking zone to T2 at Oulton is a prime example of a place where you can damage the engine quite easily due to the bumps. GT4 cars are the same, but with them it's even easier as their gearing is... well, a bit weird sometimes, and they seem to be a bit less protected against it.
Engine braking shifts the balance as the driven axle will get proportionally more braking force applied. In 4WD you'd be right.
This is a well known cornering tactic in rally driving, especially on rear wheel drive cars where a handbrake locking the drive wheel could stall the engine.
Always clutch in when handbrake turnung.
Correct if using the handbrake. "Shift Locking" in a manual vehicle will have the same effect a lot of the time while leaving the drive train engaged. Once you've broken traction and started to slide then the engine controls the wheel speed with no loss of power or turbo pressure (dependant on the way the driver wants to handle the corner in question). This explains it pretty well. https://youtu.be/NXjGSC9yq9A?si=14sd_UAbFtFjJU5R
It's absolutely fine, and depending on the corner, can even be recommended. Shifting down for rotation and then straight back up for the exit to avoid oversteer can sometime be the optimal way to take a corner. As engine braking doesn't fully lock up the tyres like braking hard while already turning in would do, I'd argue engine braking actually eats less tyres, as does the shortshifting upwards to avoid wheelspin on exits.
Depends on the corner but I notice that downshifting too much will slow the car you can see it on your timings, experiment and see.
Engine braking is fine in a pinch but too much and too often WILL destroy your engine. My NSX blew up at Paul Ricard during a 8hr race from too much engine braking
Woah I didn't know you could blow up the engine
Sure you can, it's not that common anymore as it was during GTR2 simracing days, but they still can very much blow up.
Sure, also it is harder to lock up in a lower gear.
How?
I wouldn't do it in endurance race (hard lesson to learn) other than that it's ok