MFI fuel pump and bracket

gridgway · Post by **gridgway** » Thu Aug 20, 2020 9:09 am

I'm looking for a fuel pump for my MFI conversion. Available new from the likes of type 911 for around £660. Anyone got a good used one?
Also looking for the mounting hardware as well.
Thanks
Graham

BILLY BEAN · Post by **BILLY BEAN** » Thu Aug 20, 2020 9:49 pm

gridgway wrote:I'm looking for a fuel pump for my MFI conversion. Available new from the likes of type 911 for around £660. Anyone got a good used one?
Also looking for the mounting hardware as well.
Thanks
Graham

Graham, a used fuel pump may not be a good option unless you can test it before hand to ensure it is delivering sufficient fuel to supply the MFI pump. ( presume you are aware that an MFI fuel.pump is different to carbs). Just because the pump rotates and pumps fuel does not mean it has sufficient delivery capacity. Old fuel pumps are also prone to leaking. New pumps are expensive but I got a better deal at my local OPC than anywhere else. (£525 a year ago). The mounting hardware is available from OPC too.

gridgway · Post by **gridgway** » Thu Aug 20, 2020 10:29 pm

BILLY BEAN wrote: Graham, a used fuel pump may not be a good option unless you can test it before hand to ensure it is delivering sufficient fuel to supply the MFI pump. ( presume you are aware that an MFI fuel.pump is different to carbs). Just because the pump rotates and pumps fuel does not mean it has sufficient delivery capacity. Old fuel pumps are also prone to leaking. New pumps are expensive but I got a better deal at my local OPC than anywhere else. (£525 a year ago). The mounting hardware is available from OPC too.

Yes I did wonder if it might be false economy. I'll try the local OPC to see what they can do.
Cheers
Graham

inaglasshouse · Post by **inaglasshouse** » Fri Aug 21, 2020 8:35 am

gridgway wrote:
BILLY BEAN wrote: Graham, a used fuel pump may not be a good option unless you can test it before hand to ensure it is delivering sufficient fuel to supply the MFI pump. ( presume you are aware that an MFI fuel.pump is different to carbs). Just because the pump rotates and pumps fuel does not mean it has sufficient delivery capacity. Old fuel pumps are also prone to leaking. New pumps are expensive but I got a better deal at my local OPC than anywhere else. (£525 a year ago). The mounting hardware is available from OPC too.
Yes I did wonder if it might be false economy. I'll try the local OPC to see what they can do.
Cheers
Graham

I would. I bought a couple of used ones before giving up. They leak.
BTW having been through that and dismantled a pump or two I disliked the original design so much that I bought something aftermarket. Doesn't look exactly the same, but works well and fits in the space. It's hidden away next to the steering rack under the guard plate anyway, so not too offensive to the eye.

drhildr · Post by **drhildr** » Fri Aug 21, 2020 8:37 am

Got this T-shirt - don't skimp on the pump - buy the correct unit or an over-spec after market. MFI needs to be fed properly.

stretch · Post by **stretch** » Fri Aug 21, 2020 10:06 am

Ditto. 3 pumps restored by "so called specialist" none working. New from Porsche.

gridgway · Post by **gridgway** » Fri Aug 21, 2020 10:12 am

I'm definitely getting a bit of a consensus here. Perhaps I should try new from Porsche?
Thanks all!
Graham

Dougieboy1 · Post by **Dougieboy1** » Mon Aug 24, 2020 8:44 am

my original leaked. I rebuilt it and it leaked from somewhere different.

I bough a new porsche one from Type 911. Not cheap but some degree of peace of mind.

mitso · Post by **mitso** » Thu Aug 27, 2020 3:57 pm

gridgway wrote:I'm looking for a fuel pump for my MFI conversion. Available new from the likes of type 911 for around £660. Anyone got a good used one?
Also looking for the mounting hardware as well.
Thanks
Graham

Hi I have a RS fuel pump in good working order £ 300.00 ? if not happy will except return?

gridgway · Post by **gridgway** » Thu Aug 27, 2020 4:32 pm

mitso wrote:
gridgway wrote:I'm looking for a fuel pump for my MFI conversion. Available new from the likes of type 911 for around £660. Anyone got a good used one?
Also looking for the mounting hardware as well.
Thanks
Graham
Hi I have a RS fuel pump in good working order £ 300.00 ? if not happy will except return?

Thanks that's good. I'll go against all the received wisdom above and give it a go!
Let me know how to pay. Bank transfer is fine by me. Can you post the pump?
Cheers
Graham

BILLY BEAN · Post by **BILLY BEAN** » Wed Sep 02, 2020 4:09 pm

Graham,
The fuel flow rate from the fuel pump for delivery to the MFI should be a minimum of 1000cc per 30 seconds. Just found my notes from testing my new pump.

mitso · Post by **mitso** » Sat Sep 05, 2020 4:43 pm

several mails replied but no response?

gridgway · Post by **gridgway** » Sat Sep 05, 2020 4:58 pm

Hi I'm sorry about the lack of response, been distracted with family matters.

I'm happy to have the pump if you can post it please? If you are able to let me know the cost of postage and bank details I'll do a bank transfer.

Cheers
Graham

DDK - Die Deutschen Klassiker

MFI fuel pump and bracket

MFI fuel pump and bracket

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Re: MFI fuel pump and bracket

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