The 2.5L Toyota 1JZ engine platform was produced from 1990 to 2007 (still in current production in the Mark II BLIT Wagon as the 1JZGE). Cylinder bore is 86mm x 71.5mm stroke. The 1JZGTE employs twin CT12A turbochargers from the factory, blowing through a side-mounted air-to-air intercooler. Features 8.5:1 compression, OEM power output is pegged at 280HP at 6200 rpm. The early 1JZGTE's are most commonly available with an auto tranny, but a 5 speed manual version was available in the Supra 2.5L GT. Yamaha is believed to have had a hand in the development and/or production of the engines, specifically cylinder head design. In the following year (1991), the 1JZ-GTE was slotted into the all-new Soarer GT. Output remained at 206kW/363Nm and, again, most examples come tied to an auto trans. These 1JZ-GTE powered Soarers are quite common on the Australian market (as 'grey' imports).
The 3rd gen 1JZ-GTE's introduced in 1996 feature Toyota's VVT-i technology. These cams are not VVT-i compatible.
|Stage||Description||Cam #||Adv. Dur.||Dur @ .050||Lift (in)||Lift (mm)||Kit #|
Plug and play application. Short duration for nice street manners, slight lope at idle. Excellent all purpose spec. OEM spring OK.
Longer duration profile, added rpm potential. Intended for fully built engine. Tuning and ECU mods recommended. Requires kit BC0300.
Bucket Diameter: 1.200"
No valve timing events due to variable intake cam.
VALVE SPRING/RETAINER KIT
Designed for high rpm, BC valve springs are wound from only the highest grade, super clean, chrome silicone alloy and feature proprietary processing procedures for consistent pressures. BC titanium retainers are CNC machined from 6AL4V round bar titanium to exacting tolerances.
|Kit #||Spring #||Retainer #||Description|
|BC0300||BC1300||BC2300-24||Single spring, titanium retainer|
STAINLESS STEEL VALVES
BC valves are made from premium stainless steel, fully machined and swirl polished for ultimate air flow. Dished head for added weight savings and increased valve control at high rpm. Standard and oversize head.
|Part #||Description #|
|BC3300||33.6mm Intake (standard head diameter)|
|BC3301||29.0mm Exhaust (standard head diameter)|
|BC3302||34.6mm Intake (+1mm head diameter)|
|BC3303||30.0mm Exhaust (+1mm head diameter)|
|BC3304||34.1mm Intake (+.5mm head diameter)|
|BC3305||29.5mm Exhaust (+.5mm head diameter)|