F1blueRx7

iTrader: (5)

I know these connectors are out there but I can't seem to find them with summit.

What OD is the stock fuel return hardline?

SCCAITS

iTrader: (3)

The hard line IIRC is 9 or 10mm, there are no AN fittings I could find in that size. You have to get a compression fitting (brass or bronze?) from a hydraulic/fitting supply house with an AN adapter. IIRC the compression fitting went to German thread and then a German thread to AN adapter. Took a few phone calls and take a sample piece of line with you. I did it from my rear hard lines to -6AN for my cell but have not done the engine compartment yet. Another option is to have a bung brazed on the line or just replace all your hard line with something other than metric! A hose barb and piece of hose works but defeats the whole purpose if you are going to the trouble/expense of running braided line.

F1blueRx7

iTrader: (5)

it's a 5/16 OD hard line... which I did find from summit

http://store.summitracing.com/partde...0&autoview=sku

F1blueRx7

iTrader: (5)

I'm using -6an feed and the stock return. I'm running less then 500 hp at this time (right around 450 actually) so this setup should be adequate.

classicauto

iTrader: (3)

Just slide the hose over the return line and puta hose clamp on it. Thats all I did.....

arghx

iTrader: (3)

ok this is ghetto, but I just put the 6AN right over the stock hardline and put a screw-type hose clamp on it. still running 20psi on a 60-1 turbo with no problems...

classicauto

iTrader: (3)

Ghetto-schmetto, it works just fine Technically speaking its no different then a rubber hose/hose clamp connection and in comparison is actually better since the braiding will prevent the clamp from cutting the hose.

No bajillion adapters required

KNONFS

iTrader: (14)

SAME here!

F1blueRx7

iTrader: (5)

That's what I'm doing now and it leaks. But I'm also running close to 60PSI for fuel pressure but I guess the return line shouldn't see that much pressure.

My setup is going to be different. I use an Evap solenoid to maintain tank vacuum. I've noticed on hot days there will be a spot of gasoline under the car and it appears to be coming from that hose clamp as far as I can tell. I'm going to crank it down some more but I will feel better with the correct adapter there. In my car there is an exahust pipe under that line... so I have to be concerned about that as well.

SCCAITS

iTrader: (3)

I would bet this is not going to work. It's a Mazda, the line is metric not standard. I had taken a piece of line to a performance parts store that had a ton of AN fittings in stock, nothing worked.

F1blueRx7

iTrader: (5)

I'll let you know, I just ordered one.

Aaron Cake

iTrader: (1)

Get a -6 AN to whatever thread you want adapter, drill the threaded end out as necessary to fit the line, then braze it on.

No crazy adapters or evil hose clamps needed.

classicauto

iTrader: (3)

Good suggestion Aaron.

If it *is* leaking from that connection then something's not right. Either there's a tear in the hose or a rusty section of line or someting because it should seal fine. I've put nearly 30,000km's over the course of three years and five engines running like that and haven't dripped a drop.