handinpants
01-24-2009, 10:11 PM
So here's the deal.
When ever I drive with my boost controller on, I hear a weird ticking noise as the turbo is spooling, it sounds like the tapping of a fingernail on a hard surface, at a fast pace. It happens as the turbo is spooling, and when it is under boost.
When I turn off the boost controller it does not make the noise.
What could be the problem? The compression is fine. I was told that it might be a pinging, but the timing is set at factory specs 15 degrees btdc, I am running 91 octane.
I also know that it does this more so when I boost when the engine is cold.
And idle vacuum is at 21 soo anyone have any ideas, experience, hunches as to what this is?
I do have a Jim wolf ecu tuned to 91octane and 550cc injectors, and Z32 maf, but had this noise before I did all that.
When ever I drive with my boost controller on, I hear a weird ticking noise as the turbo is spooling, it sounds like the tapping of a fingernail on a hard surface, at a fast pace. It happens as the turbo is spooling, and when it is under boost.
When I turn off the boost controller it does not make the noise.
What could be the problem? The compression is fine. I was told that it might be a pinging, but the timing is set at factory specs 15 degrees btdc, I am running 91 octane.
I also know that it does this more so when I boost when the engine is cold.
And idle vacuum is at 21 soo anyone have any ideas, experience, hunches as to what this is?
I do have a Jim wolf ecu tuned to 91octane and 550cc injectors, and Z32 maf, but had this noise before I did all that.