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> Fuel Hose and linkage Routing for dual carbs, Show me your setup
Carlitos Way
post Dec 20 2005, 12:10 PM
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Looking for dual carb fuel setups. Would love to see type/routing of fuel lines, how you ran them, how you set up your linkage, where you installed your fuel pump, filter and regulator (if any).

Thanks!
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Aaron Cox
post Dec 20 2005, 12:13 PM
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(IMG:http://www.914world.com/bbs2/uploads/blog-1111623740.jpg)
fuel lines come up the right side... hit the regulator, then a tee. one line to right carb, other line to left carb.

fuel line runs across back bulkhead....

AA

EDIT: CB linkage. Facet pump up front.

tank - filter - pump - tunnel hardlines - rubber line to engine bay - filter 2 - cheapo regulator - tee - line to each carb
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Joe Ricard
post Dec 20 2005, 12:17 PM
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Tank, prefilter, pump, fuel line through tunnel, can filter, Holley regulator with 2 outlets. one to each carb. Left carb get fuel line routed along back bulkhead.
Linkage is a modified tweaked for no slop CB style.
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brant
post Dec 20 2005, 12:32 PM
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sorry If I sound like a broken record...
but I still believe in a return line for carbs.
cooler fuel is more hp, and less vapor lock.
Its important at altitude.....

anyways...
don't have a carbed 4 anylonger, but when I did:

-tank to pre-filter
-prefilter to pump
-pump to pressure line in tunnel.
-pressure line enters engine bay and a pressure guage (NOT MOUNTED ON MOTOR where it will vibrate/break!)
-pressure line to 1st carb (a T fitting on the rear of engine bay)
-pressure line continues to a second T fitting and 2nd carb
-Then pressure line goes into a regulator, which builds Back Pressure....
(the beauty of this set up is that you can use the cheapy facet regulator, because you have a decent guage telling you what your ACTUAL pressure is to the carbs)
-regulator then goes to the return line in the center tunnel and back to tank

brant
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maf914
post Dec 20 2005, 12:35 PM
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Ditto on the two fuel line setups as described above. It has worked for me for years.

(IMG:http://www.914world.com/bbs2/html/emoticons/hijacked.gif)

Aaron,

What are you using as a bracket to hold your dual pole oil pressure sender? I like that placement. Thanks.
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Aaron Cox
post Dec 20 2005, 12:39 PM
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QUOTE (maf914 @ Dec 20 2005, 11:35 AM)
Ditto on the two fuel line setups as described above. It has worked for me for years.

(IMG:http://www.914world.com/bbs2/html/emoticons/hijacked.gif)

Aaron,

What are you using as a bracket to hold your dual pole oil pressure sender? I like that placement. Thanks.

a padded hose strap...without the padding.

remember..you must ground your external sender.... the clamp does a fabulous job at this.


BTW - carlos - there is a pic of the throttle cable bracket i made.... 2 bends...2 holes....

AA
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brant
post Dec 20 2005, 12:43 PM
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This picture is the new car (old car was the carbed -4)
this one has the regulator first, instead of back pressure....


but same thing.
filter-pump
2 fuel lines.
in one carb and out to the other and then back to the front tank!


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Aaron Cox
post Dec 20 2005, 01:08 PM
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also - a search for carb linkage yielded 3 pages of results...

here is some pics from a thread like this that i startyed when i was a carb newb...
(IMG:http://www.914world.com/bbs2/uploads/post-2-1072748822.jpg)
(IMG:http://www.914world.com/bbs2/uploads/post-2-1072753870.jpg)

lots of info URL=http://www.914world.com/bbs2/index.php?act=ST&f=2&t=7762&st=0&hl=]Here............[/URL]
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maf914
post Dec 20 2005, 01:09 PM
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QUOTE (Aaron Cox @ Dec 20 2005, 10:39 AM)
a padded hose strap...without the padding.

remember..you must ground your external sender.... the clamp does a fabulous job at this.

Good idea. I'll check into pipe clamps at the local hardware sources. Thanks. (IMG:http://www.914world.com/bbs2/html/emoticons/biggrin.gif)
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Carlitos Way
post Dec 20 2005, 03:28 PM
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Wow! Those are some really beautiful engine compartments. Would love to see more!
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tat2dphreak
post Dec 20 2005, 03:52 PM
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QUOTE (Joe Ricard @ Dec 20 2005, 01:17 PM)
Tank, prefilter, pump, fuel line through tunnel, can filter, Holley regulator with 2 outlets. one to each carb. Left carb get fuel line routed along back bulkhead.
Linkage is a modified tweaked for no slop CB style.

(IMG:http://www.914world.com/bbs2/html/emoticons/agree.gif)
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Carlitos Way
post Dec 20 2005, 06:41 PM
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What the heck is a pre-filter?
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Kargeek
post Dec 20 2005, 07:08 PM
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The second photo in Aaron's post with the red carb filters is my car. I used a six cylinder fuel pump with the factory return line and routed the fuel hose to the first carb which had a tee fitting, then along the rear of the bulhead to the other carb. I made a mistake of running one of those dial pressure regulators between the fuel pump and the first carb...the factory fuel pump is internally regulated and the aftermarket regulator set at 3-4PSI starved the left hand carb. Always check fuel pressure with a gauge.
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Carlitos Way
post Dec 20 2005, 09:27 PM
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That's a beautiful car/setup. Thanks for sharing!!!
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Carlitos Way
post Dec 20 2005, 09:28 PM
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I love the throttle cable mounting bracket. Did you make that? That's awesome!
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campbellcj
post Dec 20 2005, 09:48 PM
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Here's my setup. Sorry it's not very clean..."it's a track car"





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URY914
post Dec 20 2005, 10:13 PM
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Here is a shot of the engine that I'm going to put in my car. You can see the linkage there in the middle of the shot. I drilled it out to save some weight. I don't know if this will help you or not.

BTW, these are the two guys that helped me steal it.

Paul (IMG:http://www.914world.com/bbs2/html/emoticons/smile.gif)


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Aaron Cox
post Dec 20 2005, 10:17 PM
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QUOTE (URY914 @ Dec 20 2005, 09:13 PM)
Here is a shot of the engine that I'm going to put in my car. You can see the linkage there in the middle of the shot. I drilled it out to save some weight. I don't know if this will help you or not.

BTW, these are the two guys that helped me steal it.

Paul (IMG:http://www.914world.com/bbs2/html/emoticons/smile.gif)

my flat 16 is being shoe-horned as we speek.

suck my extra 4 cylinders paul (IMG:http://www.914world.com/bbs2/html/emoticons/flipa.gif)


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URY914
post Dec 20 2005, 10:19 PM
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Here is a picture of my -16. MUCH better....



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Aaron Cox
post Dec 20 2005, 10:20 PM
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QUOTE (URY914 @ Dec 20 2005, 09:19 PM)
Here is a picture of my -16. MUCH better....

copy cat
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