258-B
A90 Supra / BMW Camshaft - 285°/280° stage 2 racing cams for professionally built BMW Gen 2 B58 engine making 750hp-1000hp. Turbo sizing 62-72mm. Great with aftermarket intake plenums. Still can maintain full use of Valvetronic and Double VANOS. Can run Valvetronic locked in full open position when using an aftermarket throttle body. Must have valve spring upgrade, Kelford Cams recommend valve spring KVS58-BT.
- 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 Specifications
ENGINE MAKE:
ENGINE MODEL:
PART NUMBER:
BMW
Toyota
B58 Gen2
258-B
VALVE CLEARANCE:
INTAKE:
Hydraulic
SET
EXHAUST:
Hydraulic
SET
AT THE:
AT THE:
CAM LIFT:
INTAKE:
6.38mm
EXHAUST:
6.35mm
ROCKER RATIO:
INTAKE:
1.622
EXHAUST:
1.67
NETT VALVE LIFT:
INTAKE:
10.35mm
EXHAUST:
10.60mm
ADVERTISED DURATION AT
0.10mm
INTAKE:
285°
EXHAUST:
280°
DURATION AT
1mm VALVE LIFT
INTAKE:
240°
EXHAUST:
240°
TIMING AT
1mm VALVE LIFT
IVO:
IVC:
EVO:
EVC:
SUGGESTED CENTRELINES:
INTAKE:
vari
EXHAUST:
vari
LIFT AT TDC
INTAKE:
EXHAUST:
Product title
Vendor
$19.99 CAD | $24.99 CAD
Product title
Vendor
$19.99 CAD | $24.99 CAD
Product title
Vendor
$19.99 CAD | $24.99 CAD
Product title
Vendor