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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
 
owns 2020 Subaru STI
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.
 
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
do you guys know if the aeromotive is a direct swap, in particular it does it need to be hardwired?
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.
 
From what I understood the 340 was not direct drop in oh the stealth 325.
The 340 requires trimming similar to the Walbro 255. I would say for the minimal amount of LPH drop and the simple drop in of the 325...the 325 is totally worth it.:tup:
 
Why? Not versatile or easily modded? New one looks nice. Plastic but if it works I won't hold that against it.
It can be easily modified to fit the Walbro 255 or Aeromotive 340 but you have to get creative beyond that and do lots of trimming and test fitting. Nothing beats the ability to basically bolt in whatever you want and go. As I have seen, most people pull out the stock filter on the GD, install an aftermarket inline and go with whatever fuel pump fits their fancy.
 
Discussion starter · #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.
 
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.
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.
 
Discussion starter · #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?
 
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.


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?
 
Not to bring this thread from the dead, but is everyone still in agreement that Aeromotive 325 is one of the better FPs to get? Anyone had any issues with them, Pros, Cons?
 
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