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Performance expectations on Base GT non-PP AT

ColdShotxx

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Looking for confirmation if these numbers sound right. All stock except eibach pro kit springs and 20x8.5 american muscle wheels with 255/40-20 hankook RS-3. 2015 GT base, non-PP automatic, 3.15 rear, 22k miles.

At 2600ft, 91degrees, 22% humidity, 30.06

Using automatic track apps:
6.0 to 6.1 0-60
14.0 1/4 mile

That was yesterday, but any day I get very similar results. Very consistant.
D or S, same exact results.
Slam pedal or brakeboost to 2000k, same results.
Traction control on or off, same results. Slamming pedal I don't brake loose one bit. At no point do the tires feel close to breaking loose.
For a baseline, my stock 2015 V6 MT on all-seasons was getting about 6.4-6.5 0-60 and 14.5 quarter. I do have to say I'm a bit underwhelmed on the performance stepping up to the GT. Too high of expectations, or do I need to reevaluate and troubleshoot? If it sounds right, but need moda to wake up, whats needed and still maintain FS street class?
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melwff

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Just my opinion but I would say the 3.15 rear is the cause of your issue. Consider going for a 3.55.
 

tyguy

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No i have the exact setup and was able to run a 13 flat with similar da. That does seem slow for some reason..
 

tyguy

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Im not sure how dead on track apps are, may want to verify at a dragstrip.
 

MX5Racer

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I just ran at the track (cooler day) with same setup EXCEPT convertible and 3.55 gears. Ran consistent 13.1XX on track timer, high 13's on track apps timer (using auto detect). Try going to the track.
 

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2015 Silver GT

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Just my opinion but I would say the 3.15 rear is the cause of your issue. Consider going for a 3.55.
I ran an 11.2 with just a few bolt ons and my stock 3.15's. So no it's not the gearing.
 

MX5Racer

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Oh yeah, 93 octane too.
 

ypena02

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Go to an actual track and test.
 
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ColdShotxx

ColdShotxx

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Alright, looks like I'll be heading to the track soon. Thank
 

Volstang

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What others have said, forget track apps. You should be deep in the 13s with that DA. A real timeslip will give you the truth.
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