Cosmo or Supra TT or Walbro 255hp ? which one flows better at 80 psi

[TurboAWD92GSX]

ive heard all 3. cosmo is rated the highest, then supra, then walbro. but at high fuel pressure the comso and supra seem to fall off and the walbro seems to pass it cause its a little bit more flat on pressure.

 

[nowayout]

Depends on your budget. COSMO the most expensive and flow the most then Work your Way down.
If your making a lot of power like 500 + to the wheel then you might need something bigger than a Walbero. I run 780 cc with a large turbo and 20psi on pump gas, 26 on race a Walbero seems fine at this time.

 

[TurboAWD92GSX]

Originally posted by nowayout
Depends on your budget. COSMO the most expensive and flow the most then Work your Way down.
If your making a lot of power like 500 + to the wheel then you might need something bigger than a Walbero. I run 780 cc with a large turbo and 20psi on pump gas, 26 on race a Walbero seems fine at this time.

well i this car has a agp garret gt30r 65 lb/min turbo with 850cc 20psi pump gas 35 psi c18 race gas. the fuel line is a -6. i was just thinking of adding an aeromotive inline to supplement the fuel starving. i think a hardwired supra should probally be enough.

 

[nowayout]

i have a full AGP garret 60-1 S Trim 4 inch inlet and 2.5 outlet on the turborunning 18 psi on pump gas right now and it seem to do OK with a 255 walboro. My fuel presuure does not drop and injector duty never went over 65% yet.

As longer s your injector duty cycle doesn't got over 85% and fuel presure stays steady your ok.

A supra pump does not flow much more. It's quiter for sure.

Ther nothing wrong with going to a supra pump.