Injecting fuel in the exhaust to rev-up turbo? isn't antilag

[g-force_addict]

It's not anti-lag as they either run too rich a mixture and/or delay ignition timing.
Besides anti-lag is used when braking or cornering and this one would be used to accelerate faster after a turn.

In this case the fuel mixture and timing would be set for optimal power.
And some fuel would be injected in the exhaust, so that after igniting its higher pressure will rev-up the turbo, the whole purpose being to get the turbo boost to increase faster, of course.

This might be useful when coming out of a corner, because of its relatively low revs, the engine just can't use the full allowed fuel consumption rate to produce maximum power at said low revs.
Then you would use the remaining allowed fuel rate to spool up the turbo.

* Would an additional spark plug be required to ignite the exhaust-injected fuel?

* Would rules allow it?

* Would this wear out the turbine faster?

* How would engine noise change?

* Will this actually increase backpressure for the engine to expel its fumes?

[CMSMJ1]

Have a read of the turbo thread chap.... [-o<

[WhiteBlue]

1.It is unnecessary because the MGU-H will keep the turbo spooled up.
2.It is illegal at least by dedicated injectors because injecting downstream of the DI is forbidden.
3.It is not feasible because the race fuel cap of 100 kg would be exceeded and the driver disqualified.
If 1-3 isn't convincing you, ignition would not be a concern because the exhaust headers will be glowing hot and would ignite any surplus of fuel if someone were dumb enough to do it.

There is a similar trick being discussed where fuel is injected in the overrun and the energy is exploited to generate electricity for storage. But that would only be useful in situations where a surplus of fuel is available. This situation will be very rare, for instance after a safety car period. It will be far more common that teams find themselves over the fuel curve than under it and need to conserve fuel by not doing any overrun burning.

[flynfrog]

you also need some bleed air so you have something to combust. Rally cars used to do this.

But as WB said its not needed.