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Walbro only reliable fuel upgrade? PUMPS

7.4K views 39 replies 20 participants last post by  lennyk1313  
#1 · (Edited)
After reading many failures of DW pumps, wondering what other choices than Walbro pumps is there? No E85 needed, just regular pump, would like a drop in without mods but if it's reliable I'm good with it. Price doesn't matter.
 
#2 ·
Re: Walboro only reliable fuel upgrade? PUMPS

If you stay "small" like a Walbro 255 you don't have to rewire, but even it requires the very minor mod of bending it's bracket - which though it doesn't look like it can be easily be done by hand. higher powered pumps may also benefit from having at least a quarter tank of fuel, another potential limitation.

So, unless you need more stay w a 255.They aren't expensive and they work :)
 
owns 2020 Subaru STI
#3 ·
Re: Walboro only reliable fuel upgrade? PUMPS

I mean I have seen that the DW have failed, but I have used them in other platforms and had no issues. There are also tons of people running them here with no problems. I, like you want no modification needed, the DW65 suits that bill.
 
#4 ·
Re: Walboro only reliable fuel upgrade? PUMPS

There will always be negative reviews on products, typically that is the only way a product gets rated. I went with the popular Walbro 255 as recommended and it lasted for a glorious week before leaving me stranded. Go with whichever makes you and your tuner comfortable
 
#5 ·
Re: Walboro only reliable fuel upgrade? PUMPS

I've been curious about the same... sounds like the Walbro is reliable (if noisy) choice, but requires modification to install. The DW65 is drop in, but numerous people on here have talked about failures.

Saw several recommendations on another thread for the Aeromotive 325, but haven't seen many comments from people who actually have them.

Anybody have any thoughts on the Wally vs the Aeromotive? I'm gonna stay away from the DW myself.
 
#6 ·
Re: Walboro only reliable fuel upgrade? PUMPS

If it weren't for IAG's negative opinion of it, I'd be completely dismissive of this. Mine's been functioning just fine for 2 years though I have the P&L wire kit supplying it and a fuel pressure gauge as well...
 
#17 ·
Re: Walboro only reliable fuel upgrade? PUMPS

Does the Walbro 255 need a installation kit, or do the OEM sock and wiring swap over with some modification?
The kit is an adapter wire. Easier to use it.

The stock housing will need some trimming with any Walbro. If the Aeromotive 325 is a drop in, I would personally go that route.
I did no trimming - in my GD. Just a slight bend, by hand.

The Aeromotive looks nice - great specs! If it fits better great. But I don't think you're going to get the increased flow it is rated for unless you direct wire, and it costs twice as much as a Walbro 255.
 
owns 2020 Subaru STI
#14 ·
Re: Walboro only reliable fuel upgrade? PUMPS

The stock housing will need some trimming with any Walbro. If the Aeromotive 325 is a drop in, I would personally go that route.

I personally have had no issues with my DW65c but others have. Once Radium has their fuel basket for the GR available, I will be upgrading to the Walbro 450 to fully support my E85 habit.
 
#16 · (Edited)
Re: Walboro only reliable fuel upgrade? PUMPS

I am running a DW300 and have been for over a year now primarily on E85 and close to ~30,000 miles - no issues at all.

It just depends. I will eventually be adding the same set up as mentioned before with my DW300 feeding a Radium Surge Tank with a Walbro 450 to support my E85 and power needs.
 
#20 ·
Re: Walboro only reliable fuel upgrade? PUMPS

Nice - and that's not a GD bracket - nothing like it! :)
 
owns 2020 Subaru STI
#21 ·
Re: Walboro only reliable fuel upgrade? PUMPS

Get fuel pressure gauge for sure to detect early pump malfunction. Never let it run less than quarter tank of gas
 
#26 ·
I have read that the Evo guys were having issues with the AEMs failing.

Not fair having a GD....I would give an arm to have the old fuel pump setup.
Why? Not versatile or easily modded? New one looks nice. Plastic but if it works I won't hold that against it.
 
owns 2020 Subaru STI
#29 ·
Doesn't "need" to be hardwired but you may lose a little flow up top due to factory wiring. If you are running gas on a stock or smaller turbo you will be fine, this only really starts to matter when you are pushing a lot of E85, etc.

My IDCs were in the 90s on ID1000s and E70. Going hardwired would probably help some but it will be necessary once I install ID1300s and find E85 and push more boost.
 
#34 ·
What exactly is plastic? The 325 is true drop in or what does it need to modify?

Can I expect OEM reliability on the 325 with all temperature (-25C winters and +38C summers)?

Last thing I want is the pump to fail if I'm on a road trip 3-4 hours away.
 
#35 ·
Did you look at the pictures I posted? The 325 is a true drop in. You have to swap over the sock and plastic fitting on the top. I have been running stg2 on stock Inj. They are not even hitting 80%. Knock on wood I have not had any issues. And weather has been in the 50s and now this week in the high 90s also just drove the car on a 6 hour road trip. No issues.
 
#36 ·
Ya I never took apart the pump before so not sure what I'm looking at. I never touched fuel systems on my GR before.

So you're hitting 80% IDC but why would pump change injectors?
 
#37 ·
Was just using the info for ref. taking the basket out and swapping the pump isn't hard but can be frustrating. Watch and ready the DIYs out there. Take pics of how things were before you took it apart so you remember how it goes back together. Also do it with less than 1/4 tank of gas. Makes it a bit less messy.