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And here is BMW's turbo DTM engine (P48)









Source: BMW

Facts and figures on the new BMW P48 engine.

Type: P48, R4 turbo engine with direct fuel injection
Capacity: 1,999 cc
Weight: 85 kg (basic weight, according to regulations)
Bore: between 86 and 90 mm
Engine speed: max. 9,500 rpm
Power output: over 600 hp
Service life: over 6,000 km (per season)
Fuel mass flow restrictor: mandatory 95 kg/h,
100 kg/h with push-to-pass activated

- Cylinder block and cylinder head made from cast aluminium in the BMW foundry in Landshut
- Steel crankshaft
- Four valves per cylinder, operated via rocker arm
- Steel camshafts, operated via gears
- High-pressure, direct injection, as with BMW production engines with 350 bar
- Dry sump

Source: BMW

On this BMW engine: what are the reservoir (?) and perforated metal plate attached to the back end of the water pump? Opposite end of the drive input.

Morteza wrote: ↑

02 Feb 2021, 12:41

Thank you Morteza!!
WOW!! What an amazing car!! That livery, I like it very, very much.

The 2021 DTM series is looking very good. With the arrival of two Ferraris from respected team AF Corse we can expect more manufacturers & sponsors announcing their arrival in DTM. The series appeared dead but now is in renaissance.

Nice photographs of the engine!

Remember when we used to see photos of engines in F1!?

Today, Mercedes AMG announced they will be helping customer teams (Financially) in the 2021 DTM series. The private teams are essentially factory teams in disguise.

Good for Alex.

How much slower are these Gt3 cars compared to the old DTM spec?

NL_Fer wrote: ↑

04 Feb 2021, 16:37

Good for Alex.

How much slower are these Gt3 cars compared to the old DTM spec?

There are some videos on youtube that compare DTM and GT3 cars.

Mercedes announced their return to DTM one day after the Red Bull /Ferrari announcement. Can you imagine a non-German manufacturer winning the DTM series? Incidentally, this has occurred once before in 1993 when Alfa Romeo was DTM Champion with Nicola Larini.

So I found some laptimes of Spa 2020 around 2:03 - 2:06, about the same as LMP2. A GT does 2:15 on Spa.

I understand they wanted an upgraded GT first, but they couldn’t develop the ruleset in time for 2021. Any chance on a new ruleset in future? Like an LMP2 chassis, Tourwagen body and classone 2.0 powerunit.

fritticaldi wrote: ↑

05 Feb 2021, 19:47

Mercedes announced their return to DTM one day after the Red Bull /Ferrari announcement. Can you imagine a non-German manufacturer winning the DTM series? Incidentally, this has occurred once before in 1993 when Alfa Romeo was DTM Champion with Nicola Larini.

I do not think this plays any role. Mercedes is 100% winning today. They pulled back because they could not win even with big investments. It would have needed huge investment. So they used the money to have a go at the FE trophy.
Now Audi and BMW pulled out, Merc has a super competitive GT3 with an end 2019 update...all they need is a well equipped part truck some money to share info between the teams and they are miles ahead all competition.
This will be the cheapest DTM title in the history of DTM.

NL_Fer wrote: ↑

05 Feb 2021, 21:20

I understand they wanted an upgraded GT first, but they couldn’t develop the ruleset in time for 2021. Any chance on a new ruleset in future? Like an LMP2 chassis, Tourwagen body and classone 2.0 powerunit.

They did not update GT3 as it is too expensive. It was even too expensive to develop a competitive clutch for standing starts. The new GT3 is a "as cheap as possible" racing series...unfortunately teams and manufacturers will kill that approach. Or does anyone think RedBull and Merc will come without practically a T car in the truck behind the pits and a new engine for each race if these loopholes exist?

I still try to figure out why the GT cars. New style DTM (GTM?) feels more like some ADAC plus. Feels also a bit like they tried this road before when they switched from real touring cars to the more prototype CLK-DTM coupes style, before going spec chassis of the last few years. I miss those C-Classes and 155’s competing, although they were modified as hell.