Knocking in motor at high RPM's

[BadazzTA]

I have a 01 WS6 with minor bolt ons. GMAFS, lid, K$N, Smooth bellow and that is all of the Engine mods. The car has 35000 miles on it and rarely gets driven. I am having a problem with the motor ‘Knocking’ between 5300 and 5900 RPM. It almost sounds like Octane knock but I have put Octane booster and 0 -60 in the tank. I had it on an AutoTap early this year and the guy thought that my timing was off a little at high RPM’s and I cleaned the MAFS. Any ideas??? I am going to put the stock MAF in the car and see if my GMAF is bad.

[nhraformula]

all aftermarket MAFs suck and cause the ping you are getting.

the stock maf flows well beyond 400 rwhp.

[BadazzTA]

So is it a bad MAF or just the way they are designed?

[AKIRA]

I cant help ya..

But does cleaning the MAF sensors help with pinging? My engine pings too...
How cleaner spray is used for the maf again..?

[nhraformula]

get rid of that aftermarket peice of shit.
the car didnt start pinging till after you install the maf.