Thursday 16 December 2021

lamboblogging

Season 143’s PC car is the BMW M8 Coupe. This car had a golden cup and evolution cup from April 3-9 2020. The final times required for the two cups were 9.523s and 8.449s respectively. The current fastest time for the M8 Coupe is 8.078s placing it at 356th, in the bottom 25% of Tier 5 cars. As such building this car for anything other than the prestige cup or other specific event isn’t particularly recommended.

BMW (which stands for Bayerische Motoren Werke GmbH (roughly Bavarian Engine Works Company)) was created in 1917 by the Munich company Rapp-Motorenwerke as the successor company to Bayerische Flugzeugwerke AG. It was incorporated by Knorr-Bremse in 1920 and refounded as BMW AG in 1922. BMW’s first production vehicle was a straight-six aircraft engine, the BMW IIIa. Following the end of WW I, BMW transitioned to producing motorcycle engines, farm equipment and railway brakes. The first BMW motorcycle was the R 32 in 1923. BMW did not produce an auto until 1928 when it’s first BMW 3/15 was produced which was a modified Dixi as a result of the purchase of another company, Fahrzeugfrabrik Eisenbach which had been producing Austin Sevens under the Dixi label. BMW rapidly expanded in the 1930s into sports cars and luxury cruisers. During WW II, BMW completely ceased automobile production and focused almost exclusively on aircraft engines with a side line of motorcycle production maintained. BMW plants were heavily bombed during the war and it’s remaining facilities were banned from producing vehicles or aircraft after the war. The company survived until 1948 by producing pots, pans, and bicycles. In 1948 it restarted motorcycle production, and in 1952 car production with the BMW 501 luxury saloon.

After escaping a takeover attempt by rival Daimler-Benz in 1959 BMW produced the BMW 700 (with a large investment by Herbert and Harald Quandt) which was a large success and assisted in the company’s solvency. The BMW M division produced its first road and supercar in 1978 followed by the first BMW M5 in 1984, and M3 in 1986. BMW purchased Rover in 1994 but sold off most Rover brands in 2000 (keeping Mini and Rolls Royce) due to financial losses. In 1995 BMW expanded the lineup with the Z3 to include a two-seat roadster for the first time and in 1999 the X5 brought the company into the SUV market. Other BMW firsts include mass-produced turbocharged engine (2006), hybrid (2010), electric car (2013), and front-wheel drive (2014).

The M8 was introduced in June 2019 as a high performance variant of the BMW 8 series (G15). Originally the M8 was only available in 2-seat convertible and coupe options, but a 4-door was added in October of the same year. The M8 is powered by a BMW S63 twin-turbocharged V8 (shared with M5 models) producing 591 hp and generating 553 ft-lbs of torque (at 6000 rpm). The competition model M8 increases generated peak hp to 617. The transmission (only one option available) is an 8-speed torque converter ZG 8HP76 automatic referred to as the M-Steptronic. The M8 accelerates from 0-100 km/h (62mph) in 2.8 seconds and 0-200 km/h in 10.8. The top speed is limited to 155 mph but can be increased to 190 mph with an optional package.

A maxed stage 5 build has a dyno of 10.348s with a tune of 288/4.7 NOS, 2.58 FD, and 0/100 tires. This car just barely beats dyno by following this shift pattern. Perfect launch, 2nd and third at 5500 to 6000 rpm, NOS, deep good to perfect out. I was able to achieve a time of 10.287s on my fastest run with this tune (.061 below dyno).

Stage 6 effects:

Part Dyno (sec) Improvement (sec)
Transmission 9.723 .625
NOS 9.898 .450
Body 9.958 .390
Tires 10.100 .248
Engine 10.109 .239
Turbo 10.218 .130
Intake 10.244 .104

Transmission is the biggest improver here with NOS and body both very strong as well.

The shift pattern for the fastest time (8.078s) is a perfect Launch, 2nd at 15mph, 3500 rpm 3rd, 5100 rpm 4th and NOS, deep good shifts out. This beats dyno by about a .080s The tune is NOS: 488/5.5, FD: 2.65, Tires: 0/100

Prestige Cup Thresholds:

Speed Trap 1 (4): 147 mph (236 km/h)

Speed Trap 2 (10): 170 mph (273 km/h)

Speed Trap 3 (16): 196 mph (315 km/h)

Speed Trap 4 (22): 221 mph (355 km/h)

Sprint 1 (7): 4.850s

Sprint 2 (13): 3.556s

Sprint 3 (19): 2.886s

Stage 6 (28): 10.395

Final Time (30): 9.852

I did not need to re-tune for any speed traps or sprints. No stage 6 are needed to complete race Race 28 with full fusions, and 1-3 stage 6 are needed to complete race 30.



Submitted December 16, 2021 at 04:06PM by Glycereine https://ift.tt/3ITtSZs

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