what is the gph for a stock 90 240sx fuel pump? looking for a good after market one for in tank. just want it to flow more than stock.

No need for math. Get a Walbro 255 lph pump. Cheap, common, and reliable. Half the modded 240's in existence use them.

but ain't that a external set up?

Nope. In-tank.

got a site or part number for me?

how-to-s13-walbro-fuel-pump-install-t272362.html

No offense, but Walbro 255 should be enough.

Good luck!

is there a quiet'er one? thats just as good?

Ummm, the 255 is virtually silent. I can barely hear mine with the key on and the engine off.

Besides, it's in the tank.

I heard a few on youtube they were really loud, for the nissan i don't mind cause the car is loud anyway, but my Is300 needs one too and that car is quiet.

victormotorsports wrote:I heard a few on youtube they were really loud, for the nissan i don't mind cause the car is loud anyway, but my Is300 needs one too and that car is quiet.

Please see below:

AZhitman wrote:Ummm, the 255 is virtually silent. I can barely hear mine with the key on and the engine off.

Besides, it's in the tank.

Now that that's taken care of, go out and buy yourself a new, better flowing fuel pump for the 240 such as the Walbro 255lph and enjoy it.

If you're THAT worried about noise on the IS, buy a factory one.

victormotorsports wrote:I heard a few on youtube they were really loud, for the nissan i don't mind cause the car is loud anyway, but my Is300 needs one too and that car is quiet.

You listened to a Walbro fuel pump on YouTube? Doesn't that strike you as just a tiny bit weird?

I don't want to be rude here, but I had a Walbro in my Q45, which was FAR more luxurious (and quiet) than an IS300 (which is neither quiet NOR luxurious)...

I hope I've helped, but I kinda get the sense that this is a major decision (when it shouldn't be).

Does it need to be air cooled?

The older ones were vacuum cooled by intake air. The newer ones are mostly liquid cooled, which is a better option but you have to change out the cooling fluid once a year. So it depends on the year of the vehicle.

So buy the Walbro for your nissan and post on a Lexus website for your IS300?

WDRacing wrote:The older ones were vacuum cooled by intake air. The newer ones are mostly liquid cooled, which is a better option but you have to change out the cooling fluid once a year. So it depends on the year of the vehicle.

Ummmm, what?

The Walbro 255 in-tank unit is cooled by the surrounding gasoline. Same as the OEM one he's wanting to replace.

that's just Brian being a douche.