Formula 1
Formula 1
25 Jun
-
28 Jun
FP1 in
77 days
02 Jul
-
05 Jul
FP1 in
84 days
16 Jul
-
19 Jul
FP1 in
98 days
R
Hungarian GP
30 Jul
-
02 Aug
FP1 in
112 days
27 Aug
-
30 Aug
FP1 in
140 days
03 Sep
-
06 Sep
FP1 in
147 days
R
Singapore GP
17 Sep
-
20 Sep
FP1 in
161 days
24 Sep
-
27 Sep
FP1 in
168 days
R
United States GP
22 Oct
-
25 Oct
FP1 in
197 days
29 Oct
-
01 Nov
FP1 in
204 days
R
Brazilian GP
12 Nov
-
15 Nov
FP1 in
217 days
R
Abu Dhabi GP
26 Nov
-
29 Nov
FP1 in
231 days

Ferrari trials split wastegate design in Abu Dhabi

shares
comments
Ferrari trials split wastegate design in Abu Dhabi
By:
Nov 29, 2019, 10:16 AM

Ferrari has trialled a split wastegate design at the rear of its Formula 1 car in free practice for the Abu Dhabi Grand Prix, as it explores new powertrain developments.

Having used just a single wastegate throughout 2019, Ferrari now falls in line with the other engine suppliers on the grid by branching the wastegate out into two distinct exits, as seen in Giorgio Piola's photographs. Mercedes, Renault and Honda have all used twin-exit wastegates this year, and Ferrari did so in 2018 in a shotgun-style before opting for a larger-diameter single pipe this year.

The team's usual wastegate looks set to return in future sessions this weekend, as the exhaust retains the metal ring which holds it in place. A conventional wastegate in a turbocharged powertrain is used to keep the turbine within a certain range of operational speeds.

The MGU-H can also regulate the speed at which the turbo operates, but the wastegates are still required to take excess exhaust gases away from the turbocharger to relieve the overall pressure.

Ferrari SF90, rear

Ferrari SF90, rear

Photo by: Giorgio Piola

Read Also:

Part of the rationale behind breaking the wastegates into two is to rid the system of "back pressure", which is classified as any resistance against allowing the exhaust gases to flow freely out of the tailpipe.

Exhaust gases generally move in rotational pulses, and so tailpipes must be designed to ease the forces applied back on the turbocharger by the motion of those pulses.

Furthermore, branching a single tailpipe into two of a smaller diameter helps to accelerate the airflow passing out and also reduce the pressure within the system, according to Bernoulli's equation.

The wastegates are also mounted some way above the main exhaust pipe, suggesting an attempt at firing the excess gases at the underside of the rear wing to increase performance.

Wastegates were separate from the main exhaust outlet ahead of the 2016 season in an attempt to increase the amount of sound from the powertrain.

Read Also:

Next article
McLaren's BAT branding to increase significantly in 2020

Previous article

McLaren's BAT branding to increase significantly in 2020

Next article

Abu Dhabi GP: Bottas outpaces Verstappen by 0.5s in FP1

Abu Dhabi GP: Bottas outpaces Verstappen by 0.5s in FP1
Load comments

About this article

Series Formula 1
Event Abu Dhabi GP
Teams Ferrari Shop Now
Author Jake Boxall-Legge