rxrotary2_7

DRAG0NEER

Okay thanks for the reply but...

let's get back to my original question and if someone can provide me a simple yes/no answer I'd really appreciated it!

I have basic bolt-ons (cb, intake, dp, mp) and I'm running a pfc using the base map. I have a supra fuel pump sitting on my desk that I'd like to install. My question is can I just put that pump in and do nothing else and it would be perfectly fine?

ps. I know what FPR is and I still have the stock one in there.

jimlab

You know what a FPR is, you still have the stock FPR, you read my reply, and you still need to know if you have to make adjustments to your programming in order to run the Supra pump?!?

If you have the stock fuel pressure regulator, then you will have the same fuel pressure with the new pump as you did with the old pump. Excess pressure is "bled off" and returned to the tank.

The answer to your question is YES.

DRAG0NEER

great! Thanks. Just wanted to make sure cuz I don't wanna keep fouling my plugs now you know. : )

BTW, I'm not trying to be ignorant. It's just that whenever I hear people asking "I have dp, mp, cb, intake, ic with pfc, am I running too lean?" And people would always tell them "either upgrade your fuel pump or your injectors and you'll be alright..."

So I assume that upgrading the fuel pump does make your car run a little richer??

jimlab

No. Running more fuel line pressure makes your car run richer, which is why they call fuel pressure regulators the "poor man's fuel computer". At higher pressures, the injectors will spray more fuel at a given duty cycle than they can at lower pressures.

gzon

How many liters per hour does the supra fuel pump deliver? how many does the FD oem pump deliver?

240Z TwinTurbo

The Walbro 255l/h pump will support about 500RWHP. They are built to exceed OEM standards and are very quiet. The Walbro GSL 392 is the inline one and I cannot remember the designation for the in-tank pump. I used 1 of these pumps and went 11.2@130mph. You can order them from Racetronix.com for about $119. You will also want to get the install kit for $9 and the metric/AN adapters for about $12. I think it was a total of $150 shipped to my door. I have been very impressed. You need to remember that MOST pumps will crap over 70psi as far as flow capability. So you need to set you baseline to something reasonable. I typically use the standard 43psi@0psi boost. So at 20psi I am only seeing 63psi fuel pressure.

suprfast

or you can just buy the supra TT fuel pump like i have stated time and time again. 180 shipped to your door.
kris

suprfast

i also think that a moderator needs to change the POLL. the nippondenso is the OEM supra TT fuel pump. by changing that you will see almost double for the supra pump then the walbro
kris

gzon

noone knows the L/h on the supra?

ZoomZoom

iTrader: (2)

I saw it posted somewhere. its either 270 or 290lh

the_glass_man

iTrader: (2)

290@14 Volts