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Old 09-27-2018, 02:23 AM
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gnxtc2 gnxtc2 is offline
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Originally Posted by cjfarm111 View Post
Originally Posted by lincolnlocker View Post
You shouldn't have an issue with a oem bosch pump running that size
If you need more then run a dual oem bosch setup. That will be the most reliable and quiet choice. I believe a bosch 044 pump is better then a walbro which is a hair better then a stock bosch oem pump.. my 170/100s drop zero psi at full song with a single walbro.

live life full throttle
I have 175/80s and use a stock SD pump. No pressure drop. No noise either.

Originally Posted by Zeb View Post
Another pump choice is the Walbro GSL392X.
I have one on my OBS with 160/0 injectors, and another one on my 6.0 Excursion with 205/30ís. Some guys will holler about reliability issues with the Walbro, but the one on the OBS has been on there for 15,000 miles, and the Excursionís has 28,000 miles on it. Both never come off the hottest tune and maintain fuel pressure just fine.
Iíve got 6 different 6.0 trucks with 190/30ís and 205/30ís running Walbro pumps with zero failures. The highest miles on a system is nearly 60,000.
My experience with them has been excellent, and they are virtually silent also.
Be careful with Walbro pumps. There are a lot of fake re-branded and bootleg Walbro pumps out there. Also, there are a lot of bootleg Bosch pumps out there.

Whatever fuel pump you decide to go with, make sure it's rated for diesel.

Billy T.
'97 Black F250HD SC, 3.55s, Punisher Trans, PI Converter, Dana 60 RSK w/ V & C SD springs, PIS 175/80s, T500, Cale's tunes, 910s, Smith Bros, ARPs, Fluidampr, IC, E-Fuel, 3" Plenums, CJC Traction blocks, HFHV IDM, T4/BASB, Horton, 268K
- 2016 F350 DRW Ultimate (stock for now )
- 1987 Buick Grand National (Staged)
- 2004 Mercury Marauder
- 1993 Geo Prizm (beater)
Old 09-27-2018, 05:06 AM
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PABowhunter PABowhunter is offline
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For quietness, you can't beat the OEM Bosch pumps. There's also something to be said for finding replacements easily in case the pump dies.

The Fuelab is a bit noisy, but it is a very solid pump. It's also overkill for most injectors. I don't like the noise with the key on and engine off, but once the truck is running you don't really notice it.
01 F250 CCSB:
468 FMW, FFD 300/200, BTS
Old 09-27-2018, 06:04 AM
cjfarm111 cjfarm111 is offline
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My goal here was to just replace the fuelab with something quieter and keep my filter housing intact but that might not be an option
Old 09-27-2018, 07:26 AM
Zeb Zeb is offline
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Originally Posted by gnxtc2 View Post
Be careful with Walbro pumps. There are a lot of fake re-branded and bootleg Walbro pumps out there. Also, there are a lot of bootleg Bosch pumps out there.

Whatever fuel pump you decide to go with, make sure it's rated for diesel.

Billy T.
This is very true. Buy from a reputable source. I use Summit Racing.
As another point of reference as far as what the Walbro GSL392X can handle is a customerís truck that has 250/100 hybrids, Adrenaline hpop, Brian Jelichís tuning, drop in KC366, and a Walbro with the stock tank pickup, stock lines, stock fuel filter bowl, RiffRaff FRx, and stock fuel fittings in the head with the check valves removed, stock head bolts, stock valve train, etc, 4x4, crew cab, long bed, F250 with Ranch Hand bumpers front and rear.
It has never been on a dyno, but his best 1/4 mile mph is 98.39mph at 7900lbs.
He daily drives and tows with it regularly.
Old 09-27-2018, 08:38 AM
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The Brad The Brad is offline
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My 200/80s will tank the pressure down to 20psi in a hot tune with a stock pump, but pressure stays above 50psi in all other tunes.
2000 CCSB 4x4, 6in lift, 315/75-16, Joe Shmoe built 4r100, 3.73, 200/80s, CSD T4 SXE364.5/74/.91, Comp 910's shimmed, Smith Bros push rods, live tuned, Riffraff boots and plenum insterts, FRx, 6.0 Trans cooler.
Old 09-27-2018, 01:34 PM
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brian42 brian42 is offline
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I put in a new Bosch pump when I put in 160/80s. I have the medium spring in my FRx and I idle at 62psi.

I don't mash the throttle (worn tires) but a hard-ish launch to freeway speeds fuel pressure might dip to 55 psi. That's in my GH Street tune.

The Bosch pump is super quiet compared to my OEM pump. I am sure some of the noise was from the fact that it was probably tired at 15 years old with 305K miles on it when I removed it.
The Money Pit
2003 F-250 7.3L PSD FX4 CCSB
, Dual Alternators - 160/80 SS, T500, FRx, 6.0 IC & TC (w/Derale), S&B, RR 4/4 Wheel, EBPV-less, RR OCR, IH Up-Pipes, Hydra (PHP & GH), ISSPRO Gauges, FTVB, 4" MBRP, H&H, Racor PS120, 140A Alternators, North Stars, Dynatrac, XRF, ATS Springs

Last edited by brian42; 09-27-2018 at 01:36 PM.

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