Ads
related to: split plenum intake manifold replacement
Search results
Results From The WOW.Com Content Network
In 180-degree intake manifolds, originally designed for carburetor V8 engines, the two plane, the split plenum intake manifold separates the intake pulses which the manifold experiences by 180 degrees in the firing order. This minimizes interference of one cylinder's pressure waves with those of another, giving better torque from smooth mid ...
Ford — Dual-Stage Intake (DSI), on their Duratec 2.5 and 3.0-litre V6s, and it was also found on the Yamaha V6 in the Taurus SHO. The Ford Modular V8 engines and the V6 Cologne use either the Intake Manifold Runner Control (IMRC) for four-valve engines, or the Charge Motion Control Valve (CMCV) for three-valve engines.
The upper intake manifold has a sticker located on the passenger side of the forward plenum denoting "Split Port Induction". For 1999 the 3.8 L in the Mustang was updated to use the split port cylinder heads originally introduced on the Windstar, but did not use IMRC, leaving all twelve intake runners open at all times.
The upper intake plenum is of the split-chamber design with Toyota's ACIS variable-intake system feeding three sets of runners for both heads. Because the VZ series was originally for pickup truck and SUV use, the 3VZ-FE happens to be a physically tall motor. To make the engine fit in FWD engine bays, Toyota tilted the motor towards the firewall.
It offers the airflow of more expensive heads, at a much lower cost. It does, however, require a specific intake manifold (the L31 has four bolts per head attaching the intake manifold, as opposed to the "traditional" six bolts per head found on older Chevrolet small-blocks). Chevrolet's L31 was replaced by GM's LS-based 5.3L LM7 and 6.0L LQ4.
A unique intake manifold that used the 48 mm (1.9 in) twin-bore throttle body from the 5.7L TPI Corvette engine was used on the engine's top end. [9] The turbocharged 4.3 L (262 cu in) was last used in the GMC Typhoon in the 1993 model year. The engine produced 280 hp (209 kW) at 4400 rpm and 360 lb⋅ft (488 N⋅m) of torque at 3600 rpm.