Are any of these any good and worth while fitting?

 

What do they actually do?

Are any of these any good and worth while fitting?

 

What do they actually do?

 

i fitted one of these to my 16v calibra (i know its a long way off from a zed!), but it didnt make much difference in my opinion.

 

Also i was told that if your car has been chipped then you shouldnt use a boost valve for some reason :confused: , dont know if thats right though!

Another one from the snake-oil shelf! http://www.briffa.com/justadlaw/eco.htm

Interesting so either of the products are not worth fitting then.

 

Thanks guys.

i fancied fitting an FSE power boost valve to my Cav GSi, but when i spoke to a mechanic about it he said they push the fuel pump to the limit and usually end up knackering it!

The FSe power boost valve is just an adjustable fuel pressure regulator and if you have uprated turbo/injectors etc and are going for a custom map then they could be worth considering!

 

But if you are going for moderate upgrades then get your fuel pressure checked and if it is working within spec fine, no need for this!

 

Just for your info the Power boost valve works as a 1:1 regulator on Turbo cars and a rising rate on NA cars.