Aftermarket fuel pump?

my2rotties · 07-08-2005, 01:56 PM

I was curious as if you can replace the factory 911 fuel pump with an aftermarket model. Is so, which one? The engine is the 3.0 and the car is a 1981 911 SC.

The fuel pump on our car is on it's way out and we need a replacement fast, and cannot get a factory part for a couple of weeks.

Thanks in advance...

DW SD · 07-08-2005, 02:37 PM

search on Holley. They have a BEEFY pump that might work. I know some have used it for some Porsche applications. I had one of the 140GPH pumps, but I don't remember how much pressure it would develop. May not be enough for your injection.

Christien · Christien's Garage

I had a Fuel Flo rotary pump installed in mine by the local racing shop - that's what they recommended. Including labour to remove the old one and install the new, it was still half the price of buying a Bosch pump. Works fine so far (3000 km later), and much quieter.

Rufblackbird · 07-09-2005, 02:33 AM

I put a Bosch universal CIS pump PN 0 580 254 909 in my '72 with a '78 3.0 and it has run flawlessly for almost a year (~10k miles). Was about $100 cheaper than the stock SC one as well.

my2rotties · 07-09-2005, 02:37 PM

Thanks for the info guys. We were quoted $550 Canadian for a new pump from a Porsche dealer. I guess you should not buy one, if you don't want to pay the cash to keep it maintained I suppose.

The pump was really noisey yesterday, but the tank was lower on fuel and the car was being run in hot, stop and go traffic. We took out it last night in much cooler weather and it did not make a sound.

I appreciate the input.

Thanks

Charlie V · Charlie V's Garage

I just purchased a Bosch pump for a 73 to late 70's VW Rabbit from a local euro car parts distributor. $203 cdn with check valve.

Flagstaff_911SC · Flagstaff_911SC's Garage

I would go with the new oem bosch fuel pump. I had a fuel pump go out on my '83sc and went with a rebuilt pump trying to save money since the new part is very expensive and went through two of them and just got tired of having to go under the car and replacing it, so I just ended up getting the new fuel pump and not had any trouble since.

Oracle · 07-10-2005, 09:46 PM

Diana,
Unclebilly tried an aftermarket pump and last time I talked to him he was still using it... (and he bought it here in Cowtown)

Check this post:
Fuel Pump shot - anyone have any experience with Holley 12927?

Please let me know how it goes because yesterday the fuel pump in the car was a lot noisier than usual

BTW what was the silicon based product that you mentioned you tried in your car??? ( I remember it looked so shiney)

-Jasper

beepbeep · 07-11-2005, 12:05 AM

Any fuel pump from CIS car will do. Remember that CIS needs higher system pressure than EFI equipped car, so even if aftermarket pump delivers high flow rates, make sure it can develop enough pressure for CIS.

EFI works with system pressure around 3 bar, CIS works with 6-7 bar.

my2rotties · 10:59 AM

I think the fuel pump is just fine to be honest (keeping fingers crossed). When it was making all the noise, it was really hot out, and hubby was in stop and go ttraffic. The tank was at a 1/4 as well. We took it out in the evening, and I also drove it to Okotoks and back in the cooler evening air, with a full tank, and it was quiet as well.

Jasper, I assume you are talking about the waxes I use on the car...

I started with a clay bar, and then I polished it with 3M "Perfect It" Rubbing compound, followed that with 3M "Perfect It" Foam polishing glaze with my polisher. I then hand glazed it with 3M Hand Glaze (brutal to work with, but worth it)... Then I finally finished it with Meguiar's #20 Polymer sealant.

Now to keep it's shine, I use the Meguiar's NXT once a week. I find it just gives a wicked shine, but offers no real protection to the paint. After washing, I use the Meguiar's quick detailing spray. It is a lot of work to keep that exotic shine on the car, but it is well worth it. I just am thankful it is a wee little car and not a big 4x4.

If you don't want to get into the type of work that I have done to the paint, use the Meguiar's three step system. It is a cleaner, a glaze, and a final wax. Then just use the NXT for the final shine. You can do it by hand as well. You can buy all of these at Canadian Tire.

When we bought the car, the last owner did not know how to care for the paint. The difference is night and day now, between when we purchased it, and how it sits in the garage right now. Your car has excellent paint, and it won't be too bad to bring it up to a show car shine. Just be prepared to spend an afetrnoon or two doing this. Don't do it in the sun either.