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[cockneyboy100]

thinking of fitting 4 bar fuel reg,  will i feel a diference, how hard to fit.

phill

 

[Marks DTM Calib]

thinking of fitting 4 bar fuel reg,  will i feel a diference, how hard to fit.

phill

 

You are likely to notice bugger all!

Consider that the injectors fitted are designed to work at 3 Bar and are rated so they wont run on max duration under normal full throttle conditions.

Now up the fuel pressure, the injector spray pattern may well change (possibly for the worse) and it not like you actualy need to deliver any extra fuel!

[markey mark]

so why do they sell them as an upgrade for omega and vectra ? :-/

[TheBoy]

so why do they sell them as an upgrade for omega and vectra ? :-/

Same reason you can buy induction kits and small electric fans, and 'boost your bhp by 50bhp' resistors - there is always someone who will buy them.

[Marks DTM Calib]

so why do they sell them as an upgrade for omega and vectra ? :-/

They are only any real use to save you having to replace the injectors for bigger items following serious tuning.

To get more power you need more fuel and air in, its no good just dumping more fuel in because the closed loop control of the O2 sensors will just back the duration off.....