Stock lift- gpm and psi

[Kmehr]

Anyone know what the gmp/gph and psi specs are for the stock lift pump?

Also, the max psi you would want to send to the IP?

Thanks

[JohnC]

The DS4 IP has an internal transfer pump that sets the internal pressure. It has a pressure relief valve on the inlet that limits the pressure coming in. Unlike the DB2 pumps, any pressure greater than zero is fine. There is a volume spec, but I'm not sure I recall it correctly. It may be a quart in 30 seconds. That should be enough; it works out to about 4 mpg at 120 mph...

[Kmehr]

Sweet thanks, John

[6.5TDTahoe]

Obtain & install stock 1993/3500 series ACDelco lift pump. Best lo buck solution! Direct to stock fuel line & electrcial plug installation.