AirSpeed VW Community Forums

Technical => Chassis & Suspension Forum => Topic started by: Russ on November 29, 2007, 09:04:35 PM

Title: Fuel Pump Question
Post by: Russ on November 29, 2007, 09:04:35 PM

i ran a new fuel line in the pan and was checking it for leaks.
i think my pump is rated for about 3psi see link
http://www.cip1.ca/ProductDetails.asp?Prod...CC%2DC10%2D5630 (http://www.cip1.ca/ProductDetails.asp?ProductCode=ACC%2DC10%2D5630)

i pumped fuel through it then capped it off and let the pressure build up.
the pump never stopped but it did go from definatly being on to very quiet to the point of almost stopping.
i thought it should shut off completley if it hit the right pressure but it did not, close but not off.
with that being said i had no leaks,did i just not let it pump long enough or with a bit of air in the line it could not completly pressurize?
thanks for any help

Title: Fuel Pump Question
Post by: Geoff on November 29, 2007, 09:17:24 PM

I believe those pumps will always make a little noise while keyed power is on, the rattle a little when dry or no psi then go fairly quiet until the psi drops and it pumps again.

Title: Fuel Pump Question
Post by: Bruce on November 30, 2007, 07:15:52 AM

Exactly what my pump does.

Title: Fuel Pump Question
Post by: Russ on November 30, 2007, 09:04:58 AM

perfect thanks guys

Title: Fuel Pump Question
Post by: surgerypending on November 30, 2007, 09:52:04 AM

My pump runs all the time.....it's rubber mounted...still drives me crazy!

Title: Fuel Pump Question
Post by: Bruce on November 30, 2007, 06:25:50 PM

You must have a Holley pump.

Title: Fuel Pump Question
Post by: G-dog on November 30, 2007, 07:54:20 PM

I can only hear my pump when the motor is off! :lol:  

Title: Fuel Pump Question
Post by: surgerypending on November 30, 2007, 09:25:02 PM

YA...Holley blue pump

Title: Fuel Pump Question
Post by: Bruce on December 01, 2007, 12:02:31 AM

I hope your BCAA membership is up to date?????

Title: Fuel Pump Question
Post by: red snapper on December 01, 2007, 08:52:02 AM

So what do you guys suggest the best fuel pump would be for a car with high-po motor?

Title: Fuel Pump Question
Post by: Chris on December 01, 2007, 08:56:06 AM

mechanical all the way!

Title: Fuel Pump Question
Post by: Bruce on December 01, 2007, 03:02:01 PM

Stock mechanical pumps can work.  Rick's car went 12s with a stock pump.

The rotary pump Airspeed used to sell is a good pump.