Fuel Pump Upgrades
So I know that this is a common question in our world but I have looked around alot and never found a straight answer with any numbers behind it.
When does one need to upgrade to a Walbro 255lph HP and is that even an upgrade?
I have a 84 SVO, which has the dual pump setup. The intank pump is a lifter and the inline is the pressure pump. Now I have done a good amount of work to my engine and have had some people, who I would consider knowledgable, estimate it at 400whp+. Now I'm not sure about that but if I make my fuel system capable of that knid of power then I have nothin to worry about.
I would also like to have the option to run E85, this is going to require more fuel for the same power but will allow me to up boost/power which will need even more fuel.
Does the dual pump setup flow more or does the Walbro 255lph HP? Lets assume that my max FP will be around 70psi or so.
I have also heard that a Walbro 255 in tank and Walbro 255HP on the rail will support upwards of 1000hp.
Anybody have some insight and numbers to clear this up?