S15 turbo....idea?

[dumb_ricer]

Rising Rate. For example, for an 8:1 RRFPR, for every 1lb of boost it will increase fuel pressure by 8PSI.

So lets say you want to run 10PSI of boost, and you have an 8:1 RRFPR. You have to start out at base pressure, which is say 45PSI. So when your not under boost, there is 45PSI of fuel pressure. Now say you go into boost and get 10PSI of boost. You are essentially adding 80PSI of fuel pressure, giving you 125PSI of fuel pressure. This is definitely not a good thing, which is why you are supposed to upgrade injectors. When you do that, not only can you go down to a smaller increment on the rising rate, but you can drop base fuel pressure. This is all VERY in a nutshell, but gives you an idea.