im gonna need a rising rate fuel pressure regulator for my turbo conversion on the bm. am i right in thinking that the ones that work in conjuction with the original fpr say a 10:1 one will add 10 psi for every 1 psi of boost. but when youve got a base fp of 43.5 psi the fmu will have to get up to this level of pressure first before it can take control of the pressure. so fum will not come into play until 4.35 psi of boost ? just need to know as my injectors will need to be able to cope with the 4.35 psi at standard pressure ie about 210 hp. anyone know if im right

 

I while back I read the book "Maximum Boost" by Corky Bell

http://www.amazon.co.uk/Maximum-Boos...3949465&sr=1-2

It is a bit of an advert for stuff he sells but I think you have to remove the original FPR and replace it with the FMU, it will be very hard on your fuel pump so make sure you have a good one with decent wires and relay !

http://www.cartech.net/fmu2020instruc.htm

Mark

 

just found info on the net a 10:1 regulator will make 80 psi fuel pressure for 8 psi of boost irrelevant to what standard fpr is doing, the fmu just wont be active until it gets above original fpr