fuel pump?

murrayg Sat Apr 05, 2014 5:20 am

Hi all,

What are people using for a fuel pump? Is the turbo/S2 pump adequate?

Thanks!

Gord.

87-944S Sat Apr 05, 2014 1:40 pm

Stock pump is fine unless you are adding a bunch of power adders. You should keep a return line.

Rich L. Sat Apr 05, 2014 4:58 pm

My car still has the factory 944 pump. It's keeping up fine at 389 whp, a/f ratio was good all the way to redline on the dyno. This with the factory Vette fuel filter / regulator and dead-head fuel rail.

Rich

Lemming Sat Apr 05, 2014 5:24 pm

Walbro 392, pumps the same as the bosch 044 for a fraction of the cost ($100).

murrayg Sat Apr 05, 2014 9:23 pm

Thanks, I already have an S2 pump, so I'll use that with the Corvette filter.

87-944S Sat Apr 05, 2014 9:52 pm

Corvette filter with regulator has a return line at the filter that goes to the tank, which allows a single feed to the engine. This works well with the stock 944 pumps.

money pit 951 Tue Apr 08, 2014 8:48 am

Factory pump on a return system. Plenty of fuel at 6K+ RPM for 380whp

murrayg Tue Apr 08, 2014 11:15 am

OK, thanks. Here's what I'm going to do:
-Use S2 pump in standard location.
- Add a Corvette regulating filter, to allow for return line operation. I assume this is to keep the pump happy?
- Locate the filter in the rear by the pump and use a single line forward.

Thanks for all the comments.

Gord.

kevin924kevin Tue Apr 08, 2014 3:25 pm

Hello, so what is the max HP the stock pump can handle? My LS3 will have better than 525HP, will i need to upgrade the pump, i may have to upgrade my injectors.

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fuel pump?

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Fuel pump