DJ420a

How are you guys quieting your aftermarket fuel pumps? I have 2 Bosch 044's intake and they are pretty damn loud. Ive wrapped the fuel tank with dynamat and that helped some, but I think if I stop it at the source, I'll be golden.

TIA

lexforlife

iTrader: (7)

good luck .. i have a 044 as well .. all you can do is goto church and pray to the heavens to silence the pump

SH_JZZ30

iTrader: (1)

Turn the music up and open the windows lol. My walbro is loud but it doesn't bother me much when the windows are down.

lfrers

iTrader: (9)

Keep the tank full. Not being a smart aass but it works. Mine is loud as ballls.
BTW If you search you should get some other options. I did.

stockhatch

iTrader: (12)

You could run twin Densos instead maybe? Not sure much flow a 044 supports, but I "hear" the Densos are super quiet and flow tons.

iridebmx

iTrader: (6)

sound proof your gas tank!

stockhatch

iTrader: (12)

He already said he dynamated it.

DJ420a

Actually, youre totally right, the fuller the tank is, the quieter it is.

Stockhatch> Youre seriously suggesting I buy 2 Denso's when I paid $300+ for 2 Bosch's? You got deep pockets bro

Yup, dynamated the tank.

stockhatch

iTrader: (12)

LOL, just saying that is one option I wish I would have gone Denso from the start over my noisy *** walbro.

Biggu

iTrader: (12)

personally that wine noise i think is cool to listen to. im a special kinda breed though.
twin walbro 255 here.

stockhatch

iTrader: (12)

It was cool in my old hot rods, but I am after a different result with the Lexus. Namely, I want it to be quiet, low, smooth, and fast, with all the creature comforts.

I guess once you get to a certain hp level, it becomes harder to meet all those requirements.


To each their own though, I do agree that mechanical noise is pretty cool in most cases

SChema

iTrader: (2)

A friend of mine is using an externally mounted Weldon fuel pump with the supplied fuel controller. It allows the fuel pump to run noticeably quieter by lowering the voltage when not under load. It then kicks on by rpm or boost pressure signal. Amazingly enough the pump is barely noticeable off load and under load at full boost, the engine and exhaust tunes it out.

By the way, Weldons are substantially louder than any in tank pump.

I do not see why it would not work with other fuel pumps, since it manipulates the voltage under load. One thing I could see happening is a particular pump that requires "x" amount of voltage to operate.

Downside is it would cost just as much as swapping out to Densos.