12k on the car and the tune. Stock plugs still. I'll go colder plugs when it's in the shop for the other items.

 

Time difference is way too high...check for boost leaks and READ any code...It will guide you to find the problem...But dont replace any parts yet...first find and fix your failure and then replace parts...
99% its boost leak or completely failed plugs...

 

i won't DIY it unless u have full equipped garage just take it to a P car friendly garage and diagnose the issue properly, it's a real nice car

 

Yea I don't do any work myself, a shop takes care of it. I will read codes before doing anything else.

 

Not a big fan of the apr tune if thats what you are running. Todd K should get you up to speed no problem if you are switching to protomotive. Another friend of ours is running the proto tune with race map and the car is very very strong. Run a scan. Also a tank of vp ms109 race fuel might be worth trying if you are pulling timing as you might just have a bad batch of fuel...or as others have mentioned you might have a dirty maf, leak, or bad plugs.

 

In case anyone cares or finds this thread perhaps in an internet search, ToddK at protomotive got everything working perfectly. 93 octane tune now flies and no knock or other issues. And.. e85 tune on stock injectors and stock FPR is amazing. I will race the GTR again with the e85 in the tank and report back. I foresee him being very sad.

 

A buddy has a 13 GTR he just finished breaking in. We're gonna play this weekend. I'll let you know how a .1 with EVOMS/AWE stacks up.... having been in some lightly mod'd GTR's in the past, I have a feeling I already know how this is going to go

 

Awesome looking forward to the results! What tires are you using?

 

Pilot Super Sports

 

Any update?

 

+1 Boost leak. I couldn't keep up w/ my buddies stock '05 M6 when I had (essentially) an EVT580 tune. Turned out that I had blown the lines off of my plenum (or maybe throttle body?)

 

Wasn't able to run - had to rush out of town for a wedding. There was no boost leak - something was wrong with the tune. We'll run the car on e85 again in the coming weeks but I have to travel for work so have to be on a weekend.

 

Managed to get one 60-130 in today. Tried a zero shift, not sure if that's better then a 3-4 one shift. Got 7.6 so same as the gtr. Not bad for stock vtg and stock fuel system. I need those injectors though....

 

Compared to a stock 2013 gtr? Your only mods are e85 tune and exhaust right? Thanks for the update!

 

Compared to a stage 2+ (intake/exhaust/injectors/pumps/down pipes/tune) gtr. He's putting 552/579 whp/tq on a mustang dyno.
My mods are exhaust, e85 tune, .2 ics and clutch :-)