Boomba fuel rail fitting question - SRT Forums

d_fl8ted1 · 11-05-2008, 07:42 PM

I am wanting to put the aeromotive -10an fuel pressure regulator straight on the end of the fuel rail... I am having problems finding the fitting i need to go from the -8 to the -10 can anyone help me find the part number i am needing...

turbojack · 11-05-2008, 08:11 PM

What ever you do do not get a swivel fitting to connect the two, as the fitting can not support the weight and vibrations of the regulator and possibly causing it to fail and causing a fuel leak.

I would also think there's the same possible issue with a non-swivel fitting. IMO its a cleaner install if you mount it direct but you would want to somehow support the regulator if doing this.

Here's a link to Earl's parts at Holley
Holley Performance Earls Products

Here's a coupler if you want

Holley Performance Products Straight -8AN Female Swivel Coupling*AT915108ERL

d_fl8ted1 · 11-05-2008, 08:24 PM

well the fitting on the fuel rail is a female -8.... and the size of the fpr is a -10 female so i will need an adapter male to male... i am not sure they make one...

d_fl8ted1 · 11-05-2008, 08:26 PM

ok i might be wrong... what size is the fitting on the fuel rail... ?

this is similiar to what i need...
Holley Performance Products Straight Male AN -10 to 3/4" NPT*981609ERL

But i need to know if the rail is a 3/4 or 1/2... i am thinking 3/4

boogaloo shrimp · 11-05-2008, 08:36 PM

halfway down the page is a -8male to-10 male.................

this site as EVERYTHING

AN PLUMBING.COM Earls performance products, Hose ends Hose,Adapters, fittings

turbojack · 11-05-2008, 08:38 PM

I follow you now. Trust me though I went through this and understand your idea and I have the Aeromotive with the -10 inlet and outlet.

I do not think you will get exactly what you want without calling earls direct. The issue is as you said plus its an o-ring seal so its kind of very specialized. I looked and can't find my receipt with the phone number to call the place direct like I did, sorry.

turbojack · 11-05-2008, 08:40 PM

Very bottom of this page is a guide for fittings in PDF format
Holley Performance Products Technical Library

d_fl8ted1 · 11-05-2008, 08:41 PM

i called earls and summit and they cant do anything for me till i find the size of the thread on the fuel rail... that is oring sealed... i know it is an aluminum thread but is it called an -8 or 3/4..?

d_fl8ted1 · 11-05-2008, 08:43 PM

I will call them again tomorrow... and get back with you on what i find out..

turbojack · 11-05-2008, 08:43 PM

Heres the part I bought for the inlet on the boomba and its 100% same size and pitch for the outlet side so you can use this as a guide if you want
Holley Performance Products 90° -6 AN Male to 9/16"-24 Swivel*AT949094ERL