I never took my air intake off any car and the best I have run in a GTS is 11.59 at 123, to be honest I might have taken out the air cleaners on that run but its been so long I don't remember? I don't think I did though because the car was an ACR and comes with the
K@N style filters from the factory and thats what gave them the extra 10hp rating so there really is no need to pull them. I can say positively that I have made many 11.60, 11.61, 11.62 passes at 121 to 123 mph on many different track days in untouched bonestock GTS's on many different runs so 11.69 is no record. I am pretty sure my 11.59 was an untouched run also but I just can't swear to it, its been too long for me to remember.
On a side note in December with just a set of drag radials on my stock ZR1 I ran 10.69 at 132 mph.[/QUOTE]
For a factory car that is impressive. Does the Z have any more in it,...say 10.5 with DRs maybe?
I remember you posting about running the ACR as well and getting it down to 10.7 i believe and said thats all it had. Does that still hold true today now that you;ve had a little more seat time with the car or ?
Also, your doing these runs at MIR? didnt know the track had opened back up. Last time I was there was last nov when a previous gen blue z06 with DR and mods ran 9.96 and 9.94.