Ok so im about to be finishing my build and i was wondering where to get the high flow oil pump wich one to use also,
and i need a high flow fuel pump, could i possibly use a stock gst fuel pump or will that not work?
help will be greatly apreciated

stock pump + inline aftermarket pump for the fuel is the way I'd go, anyways...


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2002 Sunfire -->
- Ractive steering wheel
- ASA 17" EM9 + Nexen N5000 215/45/17 (steelies for winter)
- D-Spec Lowering kit @ 1.4" (issues currently )
- Rockford P250.1 + MTX MZS1004 + Panasonic CQ-C8313U head unit
- Barely legal tint.

For the oil pump, get a '93 or older oil pump. Melling part number M98 (NOT the M98HV), available from your Adavance Auto Parts, Autozone, etc, for about $56. Get the coresponding pick-up to go with it. It will give you approximately 10% more oil flow and run 80psi cold / 52psi hot at cruse a rpm of 2750. This pump is more than sufficiant for all but the most extreme application or really excessive bearing clearance.

Most boosted applications are using the Blazer fuel pump conversion.

Adam Lewis wrote:Ok so im about to be finishing my build and i was wondering where to get the high flow oil pump wich one to use also

holy schmoly, have you not read a single LN2 post here? ever?



fortune cookie say: better a delay than a disaster

ya i ahve but im jsut makin sure because i get different answers on every topic thats why i would like to doubble check before gettin the wrong thing

i know how you feel on that one

MadJack wrote: For the oil pump, get a '93 or older oil pump. Melling part number M98 (NOT the M98HV), available from your Adavance Auto Parts, Autozone, etc, for about $56. Get the coresponding pick-up to go with it. It will give you approximately 10% more oil flow and run 80psi cold / 52psi hot at cruse a rpm of 2750. This pump is more than sufficiant for all but the most extreme application or really excessive bearing clearance.

Most boosted applications are using the Blazer fuel pump conversion.

ok i searched and found that the older pumps will give you more flow, but why not use the HV pump? does High Volume just mean that the pump is designed for thicker oil or does it mean that it will produce more flow?

Hello. A month ago I bought the high volume oil pump form Import Performance Parts for my 1992 2.2 ohv and the one they sent me didn't fit. After installing the oil cooler and runing high compression, my stock pump is enough? That's what I am understanding reading this thread, so I'll be ok just with a new stock one?. Thanks.

Sidney

The HV pump takes more energy to run than the stock pumps. The HV pump also increases wear on the oil pump drive gears, the camshaft oil pump gears and added stres on the timing chain and gears.

The '93 & older pumps have more than sufficiant volume for street applications and sufficiant pressure for boosted applications and slightly faster ramp rate cams (high ramp rate cams still require the LT1/LSx hybrid lifters). As I stated before, you only need the HV pump for maxed out (race) motors or if you have excessive bearing clearance. When I built my motor I have now it was built with the maximum spec clearances and it runs with 52 psi hot on 5W-30 oil. I've had no problems in over 4 years/53K + miles of hard driving.

cool thanks madjack that answered my question, you always chime in with great information!

Hmmm... One wonders what could result from running the high-volume pump with stock clearances and, oh say, 0w-20 or 0w30 oil in the winter. Most I can see is a need for a larger capacity pan so it don't run dry.

Go beyond the "bolt-on".