924Board.org

toolhawk64 · Joined: 05 Apr 2005 Posts: 1

just picked up 77 924 fuel pump bad , want to check out motor before dumping alot of money into it, can I use a elec pump from a gas can into the fuel dist. to check out the motor, how much pressure do i need ? any ideas, cranks good , was told it ran awesome when parked in storage 7 yrs ago. Thanks

Joes924Racer · Posted: Tue Apr 05, 2005 12:07 pm Post subject:

I dont know probly wont work that way though I have quite a few
pumps and Id like to help you out by offeren to sell you a good pump
for 40 bucks I quarentee it to be good and all. New pump will cost you about 130.00.

Heres a pic of my extra pumps.

Did you know that the early 924 had 2 pumps the outside one and a intank pump
Heres a pic of the intank pump

... more pumps.

So I have a pump if your interested.
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1979 porsche 924 Na
1980 porsche Turbo 931GT Replica
Have u ever driven a turbo.

Peter_in_AU · Joined: 29 Jul 2001 Posts: 2745 Location: Sydney, Australia

Wow Joe, all pumped up eh.

Memory's going and I'm at work but I think a K-Jet (CIS) pump is rated at around 4bar which is near twice that of an EFI pump. Unfortunately like they say in the ads, there is no substitute.
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1979 924 (Gone to a better place)
1974 Lotus 7 S4 "Big Valve" Twin-cam (waiting)
1982 924 (As featured on Wikipedia)

Learn to love your multimeter and may the search be with you

John Brown · Joined: 07 Nov 2002 Posts: 903 Location: Leesburg VA

The regulated system pressure is 75lbs; so the pump supplies that and more. CIS takes a serious pump.
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John
80 931 - #931 44Cup
99 Escalade - tows track cars
gone but not forgotten: original 924.org car - 82

Lizard · Posted: Tue Apr 05, 2005 1:40 pm Post subject:

iirc the CIS pump can supply upto 92PSI before it shuts itself off.

most EFI cars run about 45PSI
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3 928s,