Interesting project this, hope it goes well for you.
What power are you aiming for?
Regarding the old chestnut of turning your fuel pressure up to compensate for the increased boost and thus give more power, this WONT work, and you are just as likely to end up with a melted engine.
If your fuel pump is supplying 3.5bar fuel pressure at tickover (fairly common pressure), and you are running, for arguments sake, 1 bar boost, your fuel will need to be delivered at 4.5bar (65.25psi) This is because the signal pipe (little black pipe connected from regulator to inlet) acts on a diaphram with a 1:1 ratio to increase line pressure as boost increases. This also works in reverse, decresing pressure as inlet pressure drops.
Usually when you arent getting enough fuel (it'll be obvious why in your case, you have a blower supplying extra air) you need to look at why, maybe the alternator is getting too hot at high rpm and starving the pump and injectors of voltage? Very common and simple to fix.
The common bodge is to turn the pressure up. Lets say you add another bar of fuel pressure to compensate. That means your fuel system now needs to provide 5.5bar. Remember that as pressure increases, the delivery ability of the pump goes down, not to mention the extra current you will be asking of the wiring.
Theres a reason almost all standard fuel regulators are anti tamper
You'll need bigger injectors, and probably a higher rated fuel pump, and make sure the wiring to it is capable of handling the extra current.
I dont know if they will fit, but I have a set of std bravo HGT injectors you can have for postage cost, and will soon have a 20v turbo coupe intercooler if you want it? Runs mine around 270bhp all day with no probs. Nice and compact, and will bolt straight in.
I'll keep an eye on this thread, liking it!!
Steve
