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Editorials on the economy, technology, and lifestyle by Dr Jiulin Teng
Today, I compare the design of the Nissan VR38DETT found in the R35 GT-R and the Alfa Romeo 690T found in Quadrifoglio models along six aspects: engine block, bank angle & crankshaft, oil pump, displacement & stroke ratio, fuelling, and valve timing.
Today, I compare the designs of the BMW S58B30 and of the Toyota 2JZ-GTE in eight aspects from the bottom up, including block, bearing, oil pump, stroke ratio, piston and conrod, fuelling, air flow, and valve timing.
Today, I compare five modern high gear-count RWD automatic transmissions in terms of their similarities and differences in design. They are Aisin’s 8-speed, Ford-GM 10-speed, Hyundai 8-speed, Mercedes 9G-Tronic, and ZF 8HP.
Today, I rank six V8 diesel engines made this century for passenger cars. This means no truck engines.
Today, I talk about nine of the most stunning post-war American sedans judged by me ordered by the cars' production years.
Today, I briefly talk about each of the twelve most stunning post-war European sedans judged by me.
Today, I rank ten 12-cylinder engines from six manufacturers that have been in series production this century.
Today, I rank all six (or eight) V10 engines ever in production for use in road cars.
Today, I talk about four-cylinder petrol engines and rank some of the more representative models from popular manufacturers.
Today, I rank 11 V8 petrol engines from 8 manufacturers in production in 2024.
Today, I rank 18 six-cylinder petrol engines in production from 15 manufacturers in production in 2024.
Commonly, a dirty or bad Mass Air Flow sensor is believed to lead to a lean condition. However, my experience is that it’s more likely to lead to a rich condition at idle. Here, I compare STFT and LTFT before and after cleaning the MAF sensor.