Hum From Fuel Lines After Malpassi Removal

[terrytoughnuts]

Hi everyone,

I have had a bit of a search but no luck finding an answer. Just wanted peoples opinions on what this hum/noise is that I get at idle in my 94 R33 GTST. Basically it comes in when the car is standing still and its sound straight under the driver, between the pedals and the seat. Noise will disappear at the slightest touch of the throttle and comes in and out when at idle. Funny thing is I can't hear it from outside the car, only while inside the car.

I believe its something to do with the fuel lines, regulators, pump but haven't gotten under yet to have a good investigate. The noise started after I removed the malpassi rising rate fuel regulator and brought the boost back down from 12psi to 7psi. (I want to run the car standard) I'm thinking I may have knocked a fuel line and its vibrating on idle but wanted to check with more experienced people on here. Would there be anything more major happening to the car with removing the rising rate fuel reg? (the standard one is still there, i just took the malpassi off and connected a new piece of fuel hose where is was and vacuum capped the vac port)

Cheers

Admin: I'm sorry about the double posting....

Edited April 6, 2010 by terrytoughnuts