Pauerman

This is a duplicate post from the 944 Turbo forum

I thought I'd share some useful information on a common problem area for the 944 / 951 / 944S & S2 cars.

Here is a breakdown for the DIY'er out there looking to retrofit / replace their aging fuel lines. These parts allow you to convert over to a replaceable line format using AN fittings which makes it much easier later on down the road to remove, inspect or replace.

I've supplied this fuel line arrangement to many in the 944 community over the years with great success and think that the guys who are handy enough to install these parts would benefit greatly from this info.

The parts list:

Metric compression adapters - 8mm (return line) & 10mm (feed line)
Manufacturer is Brennan Industries

Male JIC to Male Metric 8mm Adapter - p/n 7005-06-L08-14 $9.50
Metric Compression Nut - p/n VS8900-L08 $.52
Metric Bite Ring - p/n VS8860-L08 $.58

Male JIC to Male Metric 10mm Adapter - p/n 7005-06-L10-16 $8.25
Metric Compression Nut - p/n VS8900-L10 $.65
Metric Bite Ring - p/n VS8860-L10 $.67






These adapters require you to cut the factory metal hard lines with a small pipe cutter that you can get at Home Depot or Harbor Freight for about $5. Once the adapters are installed, the flexible hose can now be assembled.

The feed and return hoses will use readily available AN-6 hose end fittings that can be sourced at practically any local speed shop or online. Typical cost will range from $5-$8. Installing the hose ends is very straight forward and is much easier if you use the black, nylon braided hose. You can cut the black braided hose with scissors and overall it is much easier to work with compared to the stainless braided hose. It is more than up to the task of handling the low pressure that the fuel system generates.

Next is the metric fitting for the fuel rail. The Germans use a different sealing format with their hose end fittings. It's called "globe" which is basically a half circle. These metric rail fittings are imported and distributed by ONE and only one company out of Florida - British American Transfer, aka BAT Inc.

The fuel damper on the 944/951 cars use a 16mm x 1.5 thread pitch and BAT supplies two options for this fitting - an "in house" brand as well as the imported RTEC brand. Both fittings are quality pieces but the RTEC brand is forged and is therefore more expensive. p/n FS-1606 $11.35 and FS-1606F $18.25

An alternative damper connection is also available. BAT has a metric 16mm x 1.5 to AN-6 adapter p/n AF16AN6 $7.45 that will allow you to use a standard AN-6 hose end fitting on your supply hose and it will connect to this adapter. This option is physically much longer once installed and the hose fitting comes very close to touching the #2 intake runner. It is really pointless since the combined cost of the adapter plus the AN-6 fitting are almost the same plus the final fitment with just one metric fitting is much better.

As you can see, BAT supplies 90 degree fittings that will allow replacement of your factory "jumper" line. These fittings are more expensive and 2 fittings are needed - p/n F90-1606 $25.50






For the S2 guys, the metric fittings on the rail and damper are 14mm x 1.5
The fittings can be purchased from BAT with p/n FS-1406 $11.35 for the straight fittings and p/n F90-1406 $25.50 for the 90 degree fitting.






The final assembly of the fuel lines will look like this for 8V cars in either black nylon or stainless. Be sure to use fuel injector style clamps as shown on the stainless lines as they provide better clamping than the standard, worm gear style clamp.






After installation in the wheel well, you have the flexibility to route the return line to the rear of the cam tower so that it gets exposed to less direct heat from the headers. This is what it will look like!

Total cost for all parts required should be approximately $65 including 4 feet of nylon braided hose. Not a bad deal for preventing an engine fire!!

Hope this helps the guys who are interested and capable of this sort of install.

Cheers!

Paulyy

Good to see you back!

For some reason, the pictures aren't showing up.

Pauerman

Good to be posting here again Pauly - thanks.

Pics should be fixed now.

Voith

Very nice, thank you for the list.

Jimmy Jones

Awesome, thanks for the post! My fuel lines are looking pretty bad, I'll add this to my list...

John_AZ

Thanks for the post Pauerman.
J_AZ

veleno

Great write up with pictures!
Too bad you're not making the lines, I need some!

reno808

Make them its really easy. their are a few sites including youtube that show you how to make the lines.

Jimmy Jones

This is my next todo item. I skimmed through the instructions again, but just wanted to ask to make sure, this will work for an early 85 N/A also? I noticed my fuel line run up the back of my firewall, not in the wheel well, and my fuel rail has the pressure regulator and dampener in different positions then in the pictures above. Is there anything else I need to be aware of before starting this?

Thanks!

bonus12

Here's a trick: park your car facing uphill to reduce the amount of gas pouring out. Or use jacks if that suits you. Have some rags placed under the connections, to catch pouring gas.

This is pretty useful:
http://www.arnnworx.com/catalog/inde...d=17&chapter=1


Change yours now!!! As in ASAP!! I'm glad I changed mine in time. Here are the old vs. new.

James_944

Some great info here and the photos show what I had in mind also.

Thank you.

Dimi 944

Thanks for the precious info and effort to share it with us!

Pauerman

No problem guys. This is an important area to address with our cars, so don't put aside this mod cause it'll definitely bite you.

Jimmy Jones

Maybe I am not finding the right place to search, but some of the part numbers are not found on the Brennan Industries website. Perhaps I am looking in the wrong place?

James_944

Hi

Quick query as I am new to these fittings so learning as I go along. Trying to find the parts in the UK.

Male JIC to Male Metric Adapters.
Am I correct in saying it is AN-6 for the 10mm and AN-4 for the 8mm?

Thanks in advance.
James