BMW Alpina B7 Turbo (E28) Quick look
This is the second- generation B7 Turbo, introduced in April 1984. Once again, Alpina claimed the title of being the fastest 4- door car in the world
The engine is based on BMW’s 3.5L unit, which is standard version produces 218bhp. Alpina have made many changes to the engine such as a reprogrammed Motronic system, a modified cylinder-head, lighter Mahle pistons, a new camshaft, a special exhaust manifold and of course a KKK K27 turbocharger.
The engine has higher compression than the old B7 Turbo so Alpina have decreased the turbo boost to 0.7 bar, because they didn’t want the b& to have more than 300bhp. That’s exactly what it has, 300bhp and 501 Nm. The catalyst- version had 320bhp and torque of 509 Nm. The gearbox is a five- speed from Getrag.
Suspension/ Brakes/ Wheels
The B7 has the excellent Alpina- Bilstein suspension with progressive springs and gas- pressure dampers. The brakes are more powerful thanks to Girling discs all- around, ventilated at front. The wheels are in 16in high with 205/55 tires at front and 225/50 tires at rear.
The B7 has all the Alpina interior changes such as Recaro seats with Alpina upholstery, leather steering- wheel, gear knob, new instruments an so on. The visual changes include a deep front spoiler, rear spoiler and the wheels.
Depending on what year the car is manufactured Alpina has claimed different 0-100km/h times When Auto Motor Sport tested the B7 Turbo Kat it accelerated from 0-100km/h in just 6.1 sec, 0-160km/h in 12.8sec and had a top speed of 265km/h. But the Swedish magazine Teknikens Varls tested the B7 Turbo it accelerated from 0-100km/h in an amazing 4.8sec, 0-200km/h in around 17sec and had a top speed of 270km/h
The production ended in July 1987 and total of 238 cars were built. In August 1986 Alpina introduced the B7 Turbo Kat which went out of production in December 1987. Only 42 B7 with catalyst were made.