'14 GT Automatic - drag racing results from a few simple mods

[Five Oh Brian]

Here's the video Dave's wife took of him running an 11.65 to my 11.66. My Ruby Red '14 GT in the left lane and his Redfire '03 Cobra in the right lane. He treed me pretty good and stayed ahead of me for the whole pass. .01 second margin of victory; talk about a close race!

https://www.youtube.com/watch?v=03ot28hF-jg

 

[bob450]

nice thread brian maybe i can add my personal experience my set up is :

stock intake
circle d 2c
3.15 gear
6r80
alu drive shaft
trans brake
airaid intake
28 inch et street
expert tuning tune 94 octane
i am number 114 my friend with near same set up (4c and 26 inch tire) other lane

(-300DA) 30 kmh head wind...
https://flic.kr/p/zG2QyZ

before i ran with 3:55 gear my best was 1.6 0-60 and 11.6 and 116 top speed

my buddy best run https://www.youtube.com/watch?v=hCJPP5bTKB4

 

[Five Oh Brian]

nice thread brian maybe i can add my personal experience my set up is :

stock intake
circle d 2c
3.15 gear
6r80
alu drive shaft
trans brake
airaid intake
28 inch et street
expert tuning tune 94 octane
i am number 114 my friend with near same set up (4c and 26 inch tire) other lane

before i ran with 3:55 gear my best was 1.6 0-60 and 11.6 and 116 top speed

my buddy best run...

Your buddy's car charges hard! Forced induction? Or lots of weight reduction?

Do you feel the 3.55 gears helped your car? Looks like your timeslip shows a 2-tenths improvement with the 3.55's vs the 3.15's?

 

[bob450]

We are both na stock engine weight intake except spare tire lol
3.55 1.6
3.15 1.54
Lower gear best and better fuel economy lolll
My buddy did 1.49 constanly with 3.15 4c and 26 inch hoosier radials

 

[2011/5.0]

Mineshaft air plus tailwind. Nice!

 

[bob450]

Thank 2011/5.0 hope doing better in next week just before winter☺☺

 

[bob450]

did new personal best 11.24 @120.88 mph -900 da 0-60: 1,524 2c
one of my buddy best https://www.youtube.com/watch?v=KU_wXvy9DvI

 

[skaarlaj]

So, here is an updated chronology of my mods since day one. I bought this '14 GT in July 2013. Best ET from each change to my car...

First mods: SCT Tuner with canned 91 octane tune and M&H Drag Radials (28" tall). DA 1000-1700' above sea level...

1.943 = 60'
5.367 = 330'
8.156 @ 88.03 = 1/8 mile
10.565 = 1000'
12.601 @ 111.15 = 1/4 mile

Next round of mods added: Bama race tune, 5,000 rpm Circle-D 4E stall converter, and 1-piece aluminum driveshaft from Shaftmasters. DA 100-400' below sea level (same level of mods on a day with DA in the 300-900 above sea level was about 2 tenths and 1.5 mph slower, by the way)...

1.655 = 60'
4.912 = 330'
7.664 @ 89.07 = 1/8 mile
10.040 = 1000'
12.036 @ 113.13 = 1/4 mile

Next round of mods added: 4.10 gears & Mike Rousch tuning. I also ran the Bama race tune back to back with Mike's tune and found virtually no difference in ET's between the two tunes, but Mike's tune is so much better for drivability that he is the go-to-guy for tuning 6R80's!!! DA in the -100 to +100 range.

1.622 = 60'
4.830 = 330'
7.515 @ 90.34 = 1/8 mile
9.836 = 1000'
11.802 @ 114.82 = 1/4 mile

Next round of mods added: Pypes O/R H-pipe with revised tuning by Mike Rousch. DA was 200-900' above sea level, so worse air, but marginally better ET's anyway.

1.627 = 60'
4.794 = 330'
7.480 @ 91.21 = 1/8 mile
9.807 = 1000'
11.786 @ 114.02 = 1/4 mile

Next changes: Had to put the factory 2-pc driveshaft back in temporarily, but also added GT500 axlebacks. DA 850-1000', so the air was a bit worse, yet the ET didn't really change much & the trap speed really woke up several mph! Who would have thought the factory mufflers were so restrictive on the tall end of the track!

1.638 = 60'
4.835 = 330'
7.529 @ 91.13 = 1/8 mile
9.849 = 1000'
11.804 @ 117.70 = 1/4 mile

Next round of mods: Was able to get the 1-pc driveshaft back in the car, but zero changes otherwise. DA very similar in the 700-800' range.

1.627 = 60'
4.811 = 330'
7.498 @ 91.57 = 1/8 mile
9.811 = 1000'
11.761 @ 117.03 = 1/4 mile

New for the 2015 racing season I added big & littles. SVE 17x4.5" front wheels and 15x10" rear wheels. 275/60/15 M/T ET Street drag radials. This took 68 lbs off my car. DA was in the -300' to -200' range.

1.627 = 60'
4.752 = 330'
7.384 @ 93.23 = 1/8 mile
9.658 = 1000'
11.570 @ 117.55 = 1/4 mile

It almost seems like the off road pipes didn't help you too much, have you ever considered putting your cats back on for a test? I also recall you mentioning going cat-less enabled to tuning to be more aggressive? Just curious, and what is your thoughts on this? Usually aggressive tuning involves leaning out the A/F ratio, and usually cats like leaner, than richer as far as allowing them to run hot enough and live.

I also commend you on all of your testing/racing, it really helps me and surely others not get wrapped up in spending a lot of money on mods that just simply do much for performance. I'm betting there's hundreds of CAI tune cars out there stuck in the 13's, and then you come along with a closed, stock airbox and rip off mid 11's.

Just fyi, I have a friend with a green 1013 trac pac car that ran an 11.2 @122 with a 640rwhp vortech supercharged mill on slicks and skinnys although his is a manual trans car, but none-the-less, this is very impressive for you and your set-up imo.

I also love that you run 4.10 gears when the rest of the world is saying you shouldn't, either way, mid 11's in such a stock appearing, nice driving stang is nothing short of amazing, and thank you for all of your data.

Too bad my car is a six speed manual, hahahaha. All these killer times with a stall converter makes me want an auto very very badly!!

 

[skaarlaj]

I'm also curious to see the results you get when/if you get some headers on that thing!

 

[bob450]

near my best pass https://www.youtube.com/watch?v=L0uO3-JAGh4

 

[Five Oh Brian]

near my best pass https://www.youtube.com/watch?v=L0uO3-JAGh4

Great, drama-free pass! Looking good!

 

[Five Oh Brian]

It almost seems like the off road pipes didn't help you too much, have you ever considered putting your cats back on for a test? I also recall you mentioning going cat-less enabled to tuning to be more aggressive? Just curious, and what is your thoughts on this? Usually aggressive tuning involves leaning out the A/F ratio, and usually cats like leaner, than richer as far as allowing them to run hot enough and live.

I also commend you on all of your testing/racing, it really helps me and surely others not get wrapped up in spending a lot of money on mods that just simply do much for performance. I'm betting there's hundreds of CAI tune cars out there stuck in the 13's, and then you come along with a closed, stock airbox and rip off mid 11's.

Just fyi, I have a friend with a green 1013 trac pac car that ran an 11.2 @122 with a 640rwhp vortech supercharged mill on slicks and skinnys although his is a manual trans car, but none-the-less, this is very impressive for you and your set-up imo.

I also love that you run 4.10 gears when the rest of the world is saying you shouldn't, either way, mid 11's in such a stock appearing, nice driving stang is nothing short of amazing, and thank you for all of your data.

Too bad my car is a six speed manual, hahahaha. All these killer times with a stall converter makes me want an auto very very badly!!

Thanks for the feedback!!!!

My '11 5.0L MT-82 never went this quick. The 6R80 is magical at the strip! Stall converters are worth their weight in gold in these cars. I miss rowing through the gears with my '11 5.0L, but I really love how much quicker my '14 is.

The off-road H-pipe only shows a small improvement in ET's in my list, as you noted, but note that the DA was about 1000' worse on the test day with the off-road H-pipe versus the factory mid-pipe, so the improvement is more like a full tenth of a second, IMO. My factory cats are toast (the substrate was disintegrating leading up to the swap to the off-road H-pipe), so I can't put them back in for a meaningful test at this point. Alternatively, I've been considering long tube headers this winter and think there's another tenth or two tenths of improvement to be had there. While we're talking exhaust, I still can't explain why swapping mufflers netted a 3 mph bump in trap speeds. I guess my factory mufflers were super restrictive!

I've done aftermarket CAI's on prior Stangs of mine. A little better #'s on the dyno, but no better at the track (and sometimes worse). For my '14 GT, it's very satisfying to pop the hood at the track and let people see a bone stock engine & airbox.

The 4.10 gears helped my car marginally at the dragstrip, but wow, what a difference in how the car feels on the street. I love the 4.10's as they make the car feel 500 lbs lighter and it rips through the gears so much quicker. If I ever get to a power level that would net trap speeds over 120 mph, I'll likely have to go back to less gear to keep from seeing 5th gear at the strip. Maybe 3.55's or 3.73's then. For now, though, 4.10's are the hot ticket for my setup.

Ultimately, I put this thread together to help others see what works and what doesn't work on my car. This may help others avoid spending a lot of money that doesn't offer any real gains. It's my way of giving back to a forum that has given me so much great info over the past 9 years that I've owned three S197's ('07 GT AT, '11 GT MT, and '14 GT AT).

 

[JLear]

near my best pass https://www.youtube.com/watch?v=L0uO3-JAGh4

Awesome pass, -900 da must be nice!! LoL

 

[zinnbo]

Just seen your video black mustang, damn that runs good! You posted it's tuned by expert tuning? I find videos and pics no phone # do you have a phone number or web site for them? Thanks mike

 

[bob450]

thank guys

http://www.experttuning.ca/

https://www.facebook.com/Expert-Tuning-269488819875473/?fref=ts

not sure about e-mail tune timming is very aggressive..

 

[dre256]

Ultimately, I put this thread together to help others see what works and what doesn't work on my car. This may help others avoid spending a lot of money that doesn't offer any real gains. It's my way of giving back to a forum that has given me so much great info over the past 9 years that I've owned three S197's ('07 GT AT, '11 GT MT, and '14 GT AT).

And you have! I have been watching this thread since you put it up in 2014, soon will be "years" I have watched it! lol

I ALWAYS thought CAI is just a waste of money and all the power is in the tunes and you have proven it forever now. It just doesn't make since. The air box is huge really for what it is and if you put a CAI on, surprisingly your not sucking in cold air but the hot air in the engine bay and these aluminum blocks put off a ton of heat.

Only thing I have been on the fence on is the convertor. I know in quarter mile it helps a lot but I drive my car a lot on the highway, I know it still locks up, but just don't know how much it will take from the MPG as I enjoy getting 24/26 MPG at 75 MPH. My wife and I go on at least 1 if not 2 trips a year in the mustang of 2K miles round trip each.

 

[Five Oh Brian]

Only thing I have been on the fence on is the convertor. I know in quarter mile it helps a lot but I drive my car a lot on the highway, I know it still locks up, but just don't know how much it will take from the MPG as I enjoy getting 24/26 MPG at 75 MPH. My wife and I go on at least 1 if not 2 trips a year in the mustang of 2K miles round trip each.

If mpg is important, the converter may disappoint you a little. With the factory converter and 3.15 gears in my car I could get 29 mpg highway at a 60 mph steady cruise. With the converter and 4.10 gears it dropped to 24 mpg at a 60 mph steady cruise. Some of that was the gearing (about 1-2 mpg) but the converter was 3-4 mpg of that 5 mpg drop on the highway.

Around town, I only get about 12-14 mpg, but I only live 4 miles from work so my car is usually driven very cold and in town. Plus, I really enjoy that 4 mile commute so I try to have as much fun as I can during that commute so my mileage suffers as a result. When I try to drive like a normal person around town, I get about 16-17 mpg.

Finding a good balance is important. I daily drive my car so mileage is kind of a factor for me. But, I make a couple hundred 1/4 mile passes each year so dragstrip performance is more a priority for me. And, when I'm driving on the street I like my car to entertain me, so the extra gearing and converter make every drive memorable - even if it's just a quick trip to the grocery store!

 

[rcm90]

And you have! I have been watching this thread since you put it up in 2014, soon will be "years" I have watched it! lol

I ALWAYS thought CAI is just a waste of money and all the power is in the tunes and you have proven it forever now. It just doesn't make since. The air box is huge really for what it is and if you put a CAI on, surprisingly your not sucking in cold air but the hot air in the engine bay and these aluminum blocks put off a ton of heat.

Only thing I have been on the fence on is the convertor. I know in quarter mile it helps a lot but I drive my car a lot on the highway, I know it still locks up, but just don't know how much it will take from the MPG as I enjoy getting 24/26 MPG at 75 MPH. My wife and I go on at least 1 if not 2 trips a year in the mustang of 2K miles round trip each.

MPG on the freeway will not change but in town it will go down. Mine use to get 26 on the freeway with the converter. On e85 it gets 14 or so in town and 20 on the highway with the car set at 75.

 

[dre256]

I don't mind so much losing some around town, but wonder if went with a less aggressive convertor then yours I can keep the hwy just lose in the city if that is possible?

Does the convertor do anything on the car while it is in motion or is it just from a stand still?

 

[kingcobra323]

My car lost about 1-2mpg on 91 with my 3c. But with e85 it lost another 6mpg

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