So I went out to Zmax today. Last season I was stock and my best was 13.2 @ 106 with a 2.0s 60' time. I was on pump gas and Sumitomo's then. This season I have the EC pulley and tune and dyno 306whp (which still seems low to me compared to stock). I'm still on pump gas and running Hankook Ventus V12's. Here's the three passes I didn't butcher.

Pass #1

R/T: .221
60': 1.996
1/4: 12.826
Trap: 110.72

Pass #2

R/T: .201
60': 1.936
1/4: 12.720
Trap: 110.53

Pass #3

R/T: .190
60': 1.949
1/4: 12.773
Trap: 110.29

My 60's times are still a little low it seems. Likely due to me preloading and spinning a bit too much off the line. I was hoping to hit 12.6 today, but so far I can't complain at a half second off my E/T.

 

Wow, that's pretty fast for a XF. Good job. I would like to see you run sometime. You are near Nashville, right?

 

Thanks, I'm in Charlotte. So close to Squirrelcrusher that I ran into him the other day

https://i.imgur.com/VOk6Q.jpg

 

Nice times. Curious what the NeedsWings single CAI would do for you. Squirrel Crusher

 

I'd imagine it could put me close to 12.4 or so. Maybe more if the gains are as high as reported. I'd imagine I could see similar gains from slicks as well, but those are useless for walking on the occasional M3 on my trip to the grocery store.

 

I ran your exact set up all winter. I just put the Needs Wings intake back on ,and it feels quicker. Both at low and high rpm. I run the stock intake in the winter as the filter in the grill gets real dirty with all the crap on the roads. I would think the nw is good for .2 in the 1/4 mile.

 

MPH is killing you...need to get her up 3-4 more mph... My guess is it needs more air as well. Time to save up for a Needswings or make your own. My best times have been on summer compound street tires so far...but, new drag radials are coming...