AirSpeed VW Community Forums

General Forums => VW Club Corner => Topic started by: josh on November 09, 2004, 02:41:15 PM

Title: Fuel Line
Post by: josh on November 09, 2004, 02:41:15 PM

I want to run a new hard line through where the original is to give the webers a little less resriction (3/16\" ?seems a little small) what size is recomended, and what material- alum or stainless? 2017cc with 44 IDF's

Title: Fuel Line
Post by: dannyboy on November 09, 2004, 02:57:13 PM

stock should be fine. i run a stock fuel line with a fuel flow rotary pump on my 2275 with no problems. but if your hell bent on changing them 5/16 should be more than plenty

Title: Fuel Line
Post by: James Buchan on November 09, 2004, 03:03:22 PM

Stock is good till around 200hp, enlarge your bowls in your carbs if your worried about lose of fuel.

Title: Fuel Line
Post by: dannyboy on November 09, 2004, 03:06:00 PM

i dont think you can inlarge the bowls on the 44idfs
(correct me if im wrong)

Title: Fuel Line
Post by: KOOL-AID MAN on November 09, 2004, 04:49:45 PM

I was one to find out that replacing the fuel line in the stock location sucks ass. But i guess its more proper then the way i did mine, i ran mine underneath the car along side the heater channel. i used 5/16 and its feeding two dellortos, no problems at all.

Title: Fuel Line
Post by: dannyboy on November 09, 2004, 05:26:37 PM

Quote

But i guess its more proper then the way i did mine

theres nothing wrong with replacing it along the heater channel, il be putting in my feed line for my F.I. there and using the stock line as a return
 

Title: Fuel Line
Post by: KOOL-AID MAN on November 09, 2004, 05:39:53 PM

good idea!

Title: Fuel Line
Post by: Bruce on November 10, 2004, 10:58:53 AM

Josh, you are attempting to solve a problem that doesn't exist.  

Look at the size of your main jet.  This is the orifice that all the fuel passes through under full load.  It'll be around 1.5mm in dia.  Even though you have 4 that size removing fuel from the float bowl, the stock one at around 4-5mm ID can easily keep up considering the pressure of your pump.

Also, look at your inlet valve at the carb float.  It will be 1.75mm.  If you have a 4-5mm dia fuel line feeding two 1.75mm inlet valves, which one is the restriction?

Title: Fuel Line
Post by: josh on November 14, 2004, 08:44:43 PM

yeah I guess that makes sense bruce. you could run a 1'' line and all that would get to the motor would be what makes it through the 4 170 jets. thanks, think i've read too many articles with guys running AN style lines. thanks josh :rockon: