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View Full Version : Need fuel line routing advice


yamadog
12-22-2010, 11:26 AM
First gen Camaro. I'm getting ready to plump fuel system and can't decide what to do with fuel lines in engine bay. Old small block and I'm mounting regulator to pass. side cyl. head. It's a return style regulator also... So I need to get two hardlines ( one 1/2 inch, one 3/8 inch) up to infront of the a-arm. Any advice and PICS would be great. Hope this makes sence as to what I'm trying to do. Thanks, Jason

fletcherscustoms
12-22-2010, 01:27 PM
In the past and on my personal camaro and the firebird we did. We mounted reg on back side of the head or on firewall and plumbed from the backside. But we are also running electric pumps

GregWeld
12-22-2010, 01:44 PM
Nothing in the rule books that says the regulator needs to be in the engine bay... many are now mounting the reg back near the fuel tank... lots less plumbing!

yamadog
12-22-2010, 04:03 PM
Sorry, I guess I should clarify, this is with a mechanical pump.....

GregWeld
12-22-2010, 04:09 PM
If that's the case - then why the return line etc.... Most mechanical pumps pump 7#'s or so of pressure.... and the carb has a needle and seat and a float bowl.... No real need for a return line and a regulator.

Are you racing? Why the 1/2" fuel line? What are you running? Was pretty sure you said SBC.... Are you doing a blow thru or what?

yamadog
12-22-2010, 04:21 PM
Greg- A while back a got a smoking, and I mean SMOKING, deal on one of those race pumps. The brand name race pump i mean. You know, the piston driven style mechanical pump...... they require a -10 or -8 feed line and for street use a return style reg. to keep out of vapor lock. Overkill? Heck yeah, but the price was such that I couldn't pass it up. So that's what I"ll be using. Don't try to talk me out of it as YOU already talked me out of an aeromotive a-1000 pump a while ago. Lol.. Jason

GregWeld
12-22-2010, 05:05 PM
Dude! Too funny ---- okay now I know why you need what you need.

Go for it!

EEEEEEEEEEEHHHHHHHHHHAAAAAAAAAAAAAAA

BBC69Camaro
12-22-2010, 10:07 PM
This is where I mounted my regulator up front, external pump electric pump thou, dual 1/2 inch lines to pump, 5/8 lines from pump to tank:
http://i328.photobucket.com/albums/l346/Marroweter/Engine/Engine%20Install/EngineInstall098.jpg

FrankZ
12-23-2010, 08:51 AM
You might want to give Howard Stewart @ Racepumps a call. My Racepump and required regulator has a 1/4" idle bleed that returns to the tank.The correct reg. is important on this set-up.

yamadog
12-23-2010, 12:51 PM
You might want to give Howard Stewart @ Racepumps a call. My Racepump and required regulator has a 1/4" idle bleed that returns to the tank.The correct reg. is important on this set-up.

Thanks, I've already done that and got the regulator already.... In my post above i state 'return style reg.' but i meant with an idle bleed. but the result is the same... i need a return line from the front of the motor since i want to put the reg. on the head. This is why I'm looking for help routing the lines. Too much stuff up there.... Can you post a pic of how you routed yours? It would be very helpfull. Jason

FrankZ
12-23-2010, 02:50 PM
Jason,I should have a pic but I will have to give it a look. In the meantime I can tell you that I mounted the regulator on a bracket to the center intake bolts w/a feed to each bowl(-6) and ran a -4 back to the tank bundled to the -8 supply. Hope that helps
Frank

67 455 Bird ragtop
03-02-2011, 02:10 PM
Just an FYI. In some sanctioning bodies, NHRA for one, the regulator must be no less than 6" forward of the flywheel if mounted in the engine bay. So the firewall is a no-no.