As the weather has been warmin up I have been noticing a ping in the midrange when im on the 125 shot. The ping goes away one I get out of that range. NX wet kit FYI. 57nitrous and 31 fuel jet.

This is with timing set at 29.5 degrees from about 2800 rpm+ I was comparing timing maps in ls1edit from my stock one to the modifed more aggressive 29.5 degree map I am running right now. It seems where I get "ping" at about 3800-4200 the timing sluffs off to about 24 degrees on the stock map for some reason.

So im back to sqaure one getting ready to load up my stock timing tune with the usual ls1edit changes for an a4 car. Im gonna see if this solves my pinging problem, if this doesnt change it I will go up to a 33 fuel jet or try the 62/35 150 shot combo. NX recomends 62/33 for the 150, I have talked to several who use a 35 fuel jet instead of 33.

Thanks

 

I would turn the spray on at 3600 rpm. Also I wouldn't spray in 2nd,3rd forth at 3000rpm too much of a load. Timing @ 24 at wot. Good luck.

 

Problem solved--

Went with a 150 shot 62/35 instead of the 33 NX recomends. Loaded up the stock timing map and everything feels real good now.

Thanks for the help.