Fuel Hardline Diameter?

Grappler · 10-14-2010, 05:57 AM

Looking to get some adapters to go from my hardlines to -6 an (currently ghetto rigged with clamps)

is the Hardline 3/8ths or 5/16ths?

Something like this correct?
http://www.summitracing.com/parts/EAR-165056ERL/
http://www.summitracing.com/parts/RUS-639200/

Thanks

RETed · 10-14-2010, 10:57 AM

It's actually metric like 8.0mm or 8.5mm?
It's close enough to 5/16" SAE...

-Ted

need RX7 · 10-14-2010, 02:34 PM

Hmm, so using 3/8" ID rubber hose is incorrect?

RETed · 10-14-2010, 06:30 PM

On stock hard fuel lines?
No, they offer 5/16" size - it's a pretty typical size if you can't believe it.
Make sure it's FUEL INJECTION rated.

-Ted

Grappler · 10-14-2010, 06:38 PM

Alright thanks RETed I will double check and make sure about the pressure ratings

LunchboxCritter · 10-14-2010, 07:08 PM

5/16" ID and about 6' will get you from hard line to fuel rail, and fuel filter to fuel rail.

NoDOHC · 10-14-2010, 10:22 PM

I would recommend hard lines over the engine. If you use hose, make sure and tie it fast to something so it doesn't rub and wear through.

FC Zach · 10-15-2010, 07:24 AM

Quote:

Originally Posted by Grappler

Looking to get some adapters to go from my hardlines to -6 an (currently ghetto rigged with clamps)

is the Hardline 3/8ths or 5/16ths?

Something like this correct?
http://www.summitracing.com/parts/EAR-165056ERL/
http://www.summitracing.com/parts/RUS-639200/

Thanks

The first link is what I would use. Thanks for bringing this up, I need one of these too. The second link wouldn't work for you, 3/8 is too large.

10-14-2010, 05:57 AM	#1
Grappler Rotary Fan in Training Join Date: Nov 2008 Posts: 31 Rep Power: 0	Fuel Hardline Diameter? Looking to get some adapters to go from my hardlines to -6 an (currently ghetto rigged with clamps) is the Hardline 3/8ths or 5/16ths? Something like this correct? http://www.summitracing.com/parts/EAR-165056ERL/ http://www.summitracing.com/parts/RUS-639200/ Thanks

10-14-2010, 02:34 PM	#3
need RX7 Clean S4 Nutswinger Join Date: Mar 2008 Location: Sterling Heights, MI Posts: 485 Rep Power: 18	Hmm, so using 3/8" ID rubber hose is incorrect? __________________ -Ted -1986 Mazda RX7 Sport [DD/beater]: engine finally let go at 205k. parts car status. -1986 Mazda RX7 base [resto-mod project]: S5 n/a swap in progress.

10-14-2010, 07:08 PM	#6
LunchboxCritter Simply Rotarded Join Date: Jan 2009 Location: Florida Posts: 166 Rep Power: 17	5/16" ID and about 6' will get you from hard line to fuel rail, and fuel filter to fuel rail. __________________ LunchboxCritter - 91 NA to J-Spec TII - 88 FC Vert - 04 Rx8 Disclaimer: I am not a mechanic, and I did not sleep at a Holiday Inn. DO NOT TRY THIS AT HOME!!!

10-14-2010, 10:22 PM	#7
NoDOHC The quest for more torque Join Date: Sep 2008 Location: Sheboygan, Wisconsin Posts: 855 Rep Power: 17	I would recommend hard lines over the engine. If you use hose, make sure and tie it fast to something so it doesn't rub and wear through. __________________ 1986 GXL ('87 4-port NA - Haltech E8, LS2 Coils. Defined Autoworks Headers, Dual 2.5" Exhaust (Dual Superflow, dBX mufflers) 1991 Coupe (KYB AGX Shocks, Eibach lowering springs, RB exhaust, Stock and Automatic)

10-14-2010, 06:38 PM	#5
Grappler Rotary Fan in Training Join Date: Nov 2008 Posts: 31 Rep Power: 0	Alright thanks RETed I will double check and make sure about the pressure ratings