So swapped in a good running 13bt with a racing beat rev II in my vert, and found that its pinging when i have the leading coil plugged in, but not when i have it unplugged. obviously i thought it was doing this because of not enough fuel.

Seems to do it under medium load and it comes on pretty hard sometimes, feels also like its breaking trans teeth.

anyways i checked my pump voltage (pump came from donor turbo s5) and i am only getting 10 volts back there, so rewired in a new relay with direct power from the main fuse and it gets a good 13.8 at idle. Went for a drive and still no change. The only thing i can think of is maybe a clogged fuel filter which i will change shortly, but i just can't think of anything else. so help me out guys

 

Timing marks dead on? Proper advance with throttle? Stupid, but wires properly installed?

 

chance the filter and read your plugs should show if its lean.

 

+1!

 

Are the trailing plug wires reversed?

 

wow i feel dumb, not sure if it was me or my buddy that put the wires on but we swapped leading and trailing positions....pretty sure thats my problem. sorry for the dumb question and wasted bandwidth! thanks for the help guys, sometimes you just over look the easy stuff