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Thread: FSE (or equivalent) Power Boost Valves

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    Regular Member Spikeyİ's Avatar
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    Default FSE (or equivalent) Power Boost Valves

    Can anyone tell me much about how these work, how to fit and what sort of gains you can get?

    Also FSE do not list a valve for the Vectra c 2.2, does anyone know of a similar product that'll fit this motor?

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    An FSE power boost valve is simply an adjustable fuel pressure regulator in disguise!!! On a standard vehicle there is no need whatsoever to increase the fuel pressure at all. Even on a cosworth you only need to up the pressure from 3 to 4 bar when you take power to 400+bhp. You will also find some cars allready come with an adjsutable reg yet some arent adjustable, this is maybe why there is not one listed for your vehicle.

    my advice is be very carefull with these products, also expect a drop in fuel economy.

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    Regular Member Spikeyİ's Avatar
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    Ok thanks Tunit, i'll consider this one struck off my to do list until I reach 401BHP

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    Regular Member Andy's Avatar
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    they need to be set up properly too. Theres far to many people doing it 'ear'. ie they adjust it until the engine starts to falter at idle, then turn it back slightly. What you end up with then is far to much fuel being rammed into the cylinders, which it cant burn. Unlike a diesel, Petrol is actually a very effective cleaner thats strips oil quite well. You then get whats called as 'bore wash' where the unburnt petrol actually washes the thin layer of lubricating oil from the cylinder walls. No lubricating oil = increased bore wear = loss of power = new cylinder liners = rebuild.

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    Regular Member Spikeyİ's Avatar
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    Yup...deffo off the list for a while...

    Thanks guys.

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    they also put alot of strain on the fuel lines and injector seals etc, not good

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