The FMU is installed just down stream of the stock fuel pressure regulator. It does not control fuel pressure until the engine manifold pressure comes under boost from the supercharger. As the manifold pressure increases, a pressure line from the manifold to the FMU causes the FMU to increase the fuel injector rail pressure. The increased fuel pressure causes the injectors to deliver more fuel to the engine. With this system the stock factory electronic controller can be used without modification on a supercharged engine with good results. The reason the Vortech supercharging systems are smog legal is because the stock controller is retained unmodified and at part throttle the engine's performance and emissions are not effected.
Excellent product. I cannot and will not complain about a perfect product.
9
01/26/2007
Very good product
10
08/21/2005
Wow, if it wasn't for this fmu my car would not be running 13's in the quarter mile. This thing made my car work without upgrading my turbo setup to standalone fuel management. Thanks alot for this awesome part!!!
Vortech Universal Fuel Management Units from HorsepowerFreaks
vortech universal fuel management units from horsepowerfreaks fuel management units. Install and installation help available for parts and accessories for these model years.
(9.7 of 10)