The Top DSM Community on the Web

For 1990-1999 Mitsubishi Eclipse, Eagle Talon, Plymouth Laser, and Galant VR-4 Owners. Log in to remove most ads.

  • Update Your Password Today!

    We have implemented tools to identify member accounts using insecure passwords and will be locking those accounts until their passwords are updated. Don't get locked out of your account - update your password today, and ensure your account has a valid email address on file. Read more here...
Please Support JNZ Tuning
Please Support Rix Racing

95 GSX 2.3 stroker street build

We're on Boost

15+ Year Contributor
1,630
450
Aug 25, 2007
Seattle area, Washington
A single Walbro 450 in-tank might make it to 700 but .... I doubt it.
Keltalon needed a boost-a-pump putting 17.5 volts onto his Walbro 450, in order to make 700 hp and that was front wheel drive (GST).
Then he had trouble with that setup and ditched it.

Is the idea that you want a fuel system that will support a turbo bigger than the HX-40?
 
Last edited:

DSM_GSX01

10+ Year Contributor
990
15
Jul 27, 2011
La Junta, Colorado
I will go with two fuel pumps then. My fuel rail is -10 an should i run -10 as feed and -8 as return
 

We're on Boost

15+ Year Contributor
1,630
450
Aug 25, 2007
Seattle area, Washington
I would probably do whichever is easier really. Because you don't need 10AN on the feed, but I don't see anything wrong with putting 10AN in if it's easier, or just as easy. I would think that 8AN would be easier though. Easier to run, because it is smaller.
8AN for the return is nice and is plenty big. Fuel pump arrangements of this size, there are so many choices, none of them are 100% ideal in every way, there's's going to be a little pro and con with any pumps you choose. If you choose to go a little overboard with the pumps, the 8AN would still be plenty to handle the return flow, which could be a lot when the car is just sitting there running at idle (at low rail pressure).

People have done quite a lot with 6AN on both feed and return lines. So with 8AN on both, you would be what I would call "nicely robust" in that area.
 
Last edited:
Support Vendors who Support the DSM Community
Boosted Fabrication ECM Tuning ExtremePSI Fuel Injector Clinic Jacks Transmissions JNZ Tuning Kiggly Racing Morrison Fabrications MyMitsubishiStore.com RixRacing RockAuto RTM Racing STM Tuned

Latest posts

Build Thread Updates

Vendor Updates

Latest Classifieds

Top