Kelford Camshafts - Toyota Supra A90/BMW Z4 G29 (B58 Gen 1) 257-A 257-B 257-C

The Fifth Generation of Toyota Supra officially went on sale in May 2019. The car is a collaboration between BMW and Toyota and as such is equipped with the BMW B58 inline six that can also be found in the G29 BMW Z4. In its standard form the B58 provides the Supra with 250kW which, while healthy, leaves plenty of room for improvement. The Kelford range of catalogue camshafts are currently in production and set to become available in 2020. Our custom spring and Titanium retainer kit is already available.

• BMW have released these engines in several revisions. To simplify things the Kelford team have named these revisions Gen 1, Gen 1.5 & Gen 2
• If you are unsure of the generation of your engine please contact the sales team & they will make sure you get the correct camshafts

Camshaft Profiles - Click "Specifications" Tab for profile data:

257-A:

• 270°/268° Degrees advertised duration.10.30mm/10.15mm Valve Lift
• High performance cams to suit BMW Gen 1 B58 engine with bolt on intake, exhaust and turbo upgrades.
• For an engine producing around 550-750hp running a 58-68mm turbo.
• Still maintains full use of Valvetronic and Dual VANOS for good throttle response and wide power band.
• Must use KVS58-BT spring kit.

257-B:

• 285°/280° Degrees advertised duration. 10.30mm/10.60mm Valve Lift
• Stage 2 racing cams for professionally built BMW Gen 1 B58 engines making 750hp-1000hp.
• Turbo sizing 62-72mm.
• Great with aftermarket intake plenums.
• Still can maintain full use of Valvetronic and Dual VANOS.
• Can run Valvetronic locked in full open position when using an aftermarket throttle body
• Must use KVS58-BT spring kit.

257-C:

• 288/288 Degrees advertised duration. 10.35mm/10.80mm lift.
• Stage 3 drag racing cams for professionally built B58 Gen 1 engines making 1200hp+.
• Turbo sizing 72mm+ on high boost.
• Fuel type ethanol blend or methanol.
• Must use KVS58-BT spring kit.