Fuel pump and injectors
1 - 13 of 13 Posts
Joined
·
706 Posts
Id1000 or Fic1100 for injectors and 255walbro w/ evo x kit.
No AFPR is needed for simply/moderate power
No AFPR is needed for simply/moderate power
Joined
·
3,995 Posts
The point behind me asking is the potential of maxing out injectors on bolt ons. Upgrading injectors so there isn't as much "strain" on duty cycle (amidoinirite?). If that is done FP upgrade would be necessary. Correct?Id1000 or Fic1100 for injectors and 255walbro w/ evo x kit.
No AFPR is needed for simply/moderate power
i think the only time you max out the injectors and pump is when you actually switch to fp turbos or run E85..but with just stock bolt ons, the stock injectors and pump will suffice.
although if you're thinking about upgrading the pump...dw has a new direct replacement fuel pump so you don't need to buy the adapter.
http://www.maperformance.com/deatsc...pump-mitsubishi-evo-x-dw9-651-1009-evo-x.html
![]()
although if you're thinking about upgrading the pump...dw has a new direct replacement fuel pump so you don't need to buy the adapter.
http://www.maperformance.com/deatsc...pump-mitsubishi-evo-x-dw9-651-1009-evo-x.html
Joined
·
892 Posts
hmmmm...interesting.i think the only time you max out the injectors and pump is when you actually switch to fp turbos or run E85..but with just stock bolt ons, the stock injectors and pump will suffice.
although if you're thinking about upgrading the pump...dw has a new direct replacement fuel pump so you don't need to buy the adapter.
http://www.maperformance.com/deatsc...pump-mitsubishi-evo-x-dw9-651-1009-evo-x.html
![]()
Joined
·
364 Posts
It certainly does. At the same voltage and pressure where a walbro 255 flows close to 300lph.
Joined
·
364 Posts
I'm not sure that it "necessitates" a fuel pump swap, but the stock pump is pretty well matched to what you can get out of the stock injectors. You could put in some 850s and get a little more out of the stock pump, but you won't be able to really make use of, say, ID1000s with a stock pump.
Stock pump at 14v feeding a surge tank at nearly no pressure though, you'd likely never need to upgrade it.
Joined
·
892 Posts
Joined
·
193 Posts
:+1:
Joined
·
3,995 Posts
I THINK I understood that....but it's 4AM.
So will you likely run out of IDC first, or FP capability? At what IDC should you conservatively start thinking about upgrading? I don't like running anything at it's max...
This is me trying to learn and understand...there is no immediate practical application.
Joined
·
364 Posts
If you listen to the "injector gurus" that have an interest in selling you injectors, they'll say 80% IDC is the max.
The pump and injectors will run out pretty close to each other, but the injectors will be the limiting factor before the pump. I'm right around 350whp on a totally stock fuel system and 91 octane. Evoscan tells me I'm at 100% idc. Prior experience suggests that I could get a bit more out of this stock pump if it was hardwired with 10-12 awg wire, but how much room for growth is there at 100% idc?
1 - 13 of 13 Posts
