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Fuel lines

I'm not disputing hard lines are best. As you say I'm sure they will last longer and by keeping them you're retaining the cars originality. Unfortunately for amateur mechanics like me, the tools are too expensive to buy for a one off job like this. Dropping the gearbox is also no mean feat! I think SAE30R9 will also come in way under the cost, Teflon still under but the fittings are more expensive. I still need to know the fitting sizes for both the fuel rail and pressure regulator. Ive updated the picture below to try to illustrate it better. 1. is the FPR, I need to know the size of this to order the correct brass connector (pictured). 2. is to the injector rail, and again I need to know the size. The Goodyear hoses are one continuous length and will run all the way under the car to the fuel filter, and tank. Again, what is the connector size on the fuel pump?
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Here are the details for the turbo/2.5 http://arnnworx.com/fuel_lines.htm The S/S2 have a different size for one of the fittings... I can't remember exactly, but it's a similar metric fitting, you could just measure it?
 
Rob - thanks. I can measure the nut size e.g. the feed line is 17mm. Which normally translates a M14, but is this right for hose fittings too?
 
I took mine to a hose specialist to match up. The paperwork suggests 10mm feed ,8mm return. 16mm fitting feed,14mm fitting return.
 
I had the ones on my S2 replaced by a local garage with flexible lines based on those used in GM cars about two years ago I think the bill was around £130 supplied and fitted.
 
Thanks again for the replies. In regards to the hose size, ive discovered hard line is measured on external diameter, and flex on internal. So 10mm hard line has in internal of something close to 8, smaller than 10mm flex. I guess larger pipes arent going to do any harm, but would be nice to be close to OE spec.
 
I have a pair of original Porsche fuel lines for a 924 which i would be prepared to sell. I believe they are the same as for the 944 but cannot be totally sure so i could look at the part number (on the original Porsche stickers still stuck to the pipes) to check if you are interested.
 
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