Yep definitely need more fuel pump then....

Comes down to usage I think, as my car is mainly a daily driver I need to keep that low pulse width control

Quote Originally Posted by RS8 View Post
With a modern injector like EV14, you can drive with over 2000cc each without problems, (But I could not find any larger EV14 that have the same length etc. as the ones I used, so therefore I bought these 1500cc now.)

But you may have problems getting the right values ​​when you use air mass meters? But for me with MaxxEcu I can use whatever I want.

I also drive at 3 bar

I don't know how much better an Walbro 460 flows than 450?
But if you have 3bar + 2bar boost = 5bar = then one 450 can deliver fuel for maximum 640hp with E85
But if you have 4bar + 2bar boost = 6bar = then one 450 can then only deliver fuel for maximum 550hp with E85 so 2 pumps will only flow for maximum 1100 engine hp.