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TPI Specialties was founded by Myron Cottrell, a professional engine builder, who had bought a new Chevrolet Corvette in 1985 and was intrigued by the potential for improvement in its Tuned Port Injection fuel injection system.
The LB9 "Tuned Port Injection 5.0L" was introduced in 1985. At its core was the stout L69 shortblock and it used the same aggressive L69 camshaft profile. The induction system was unlike any system used previously by GM.
Myron Cottrell’s brother, John Cottrell, bought a 1999 Chevrolet Monte Carlo NASCAR Busch Series race car and modified it to make it street legal. In 2006 the car received an appreciative mention from Car Craft Magazine after appearing at the Car Craft Summer Nationals auto show, and in 2006 it was run at Bonneville Speedway on the Bonneville Salt Flats and achieved a best official speed of ...
The Ramjet is a continuous-flow port-injection system. Unlike later fuel injection systems that used electronics, this one is based on purely mechanical principles. The two main sub-assemblies of the system are the air meter and the fuel meter. The air meter measures airflow into the engine and manages thermostatic warmup enrichment, fuel ...
Multi-point injection (also called 'port injection') injects fuel into the intake ports just upstream of each cylinder's intake valve, rather than at a central point within an intake manifold. [17] Typically, multi-point injected systems use multiple fuel injectors, [ 18 ] but some systems, such as GM's central port injection system, use tubes ...
Today, the term chip tuning can be misleading, as people will often use it to describe ECU tuning that does not involve swapping the chip. Modern electronic control units can be tuned by simply updating their software through a standard interface, such as On Board Diagnostics. This procedure is commonly referred to as engine or electronic ...
Port injection refers to the spraying of the fuel onto the back of the intake valve, which speeds its evaporation. [ 1 ] An indirect injection diesel engine delivers fuel into a chamber off the combustion chamber, either a prechamber or swirl chamber, where combustion begins and then spreads into the main combustion chamber.
Programmed Fuel Injection, or PGMFI/PGM-FI, is the name given by Honda to a proprietary digital electronic multi-point injection system for internal combustion engines. It has been available since the early 1980s. This system has been used in motorcycles, automobiles, and outboard motors.