So dustin an efficient turbo such as a greddy. would be ok running 5-6psi w/ an intank 255lph and a fmu 10:1 w/ 310's.

 

I know this is kinda off topic but what do you think is the better pump Dustin Bosch in-line or the Walbro high pressure?


[Modified by Mikex25, 7:04 AM 10/10/2001]

 

MikeX25...

Stand alone ECU.. the Walbro will do you jusy fine and save you some loot.

FMU.. get the Bosch because fuel psi will go over the GSS342's limits..

 

Hello, I wanted to put my .02 in this one too...

Dustin- I'm with you all the way on this one.

DO NOT USE THE WALBRO PUMP ON A DRAG KIT, IF YOU DO, DON'T COME BACK HERE COMPLAINING ABOUT DETONATION.

Ok, I'm done shouting. I hope you heard me, because if you rely on the walbro pump, you're just asking for trouble. Do yourself a favor and buy a better pump. MSD, Mallory, Bosch, or just use the one that comes in the Drag kit. The walbro pump is NOT designed to be pushed past 90PSI, terminal engine failure WILL occur.

Also, DITCH the Drag FMU, check valves, and the DeltaCrap wastegate.

FMU - Buy whatever, anything is better than that POS FMU.
Checkvalves - Get a "Missing Link"
DeltaCrap - One word. TIAL

To whoever asked about the bosch pump, YES it's 1000 times better than the intank walbro pump.

I am done.

 

Well I mean there are ways around it. You could use a dbman style setup, that is.. large injectors (400cc's) which would allow you to run a much smaller FMU rate of like 2:1 or maybe 4:1 keeping pressures around or below 80psi, and just use a VAFC to draw back on the injectors at idle. The Walbro will be able to supply more than enough fuel for such relativley low FMU style pressures. Now if you wanna keep your stock injectors or 310's, you're gonna need high pressure to flow fuel through there at 8+psi and then yes, an inline high pressure pump is gonna be needed.. but it's certainly not the only option for mechanical fuel control.

 

So what would you guys recommend for fuel upgrades for a Drag II or Revhard II that would all work together nicley at 8-12 psi? Injectors, pump, etc...??