Something is wrong here

[LETHAL]

You do realize the faster you go, the more resistance in the head wind you experience?

12.2 @114 is not alarming with a 25 mph head wind.

Your time slips are showing the car is fighting the headwind the entire run . Your 1/8th trap is a little soft. I'd say 2 mph on the best run and accordingly your 1/4 about 4-5.


That DA wasn't exactly ideal either. I'd guess while 57*, the humidity was crap.

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[w3rkn]

Next time, do the run with your hand out the window....

You'll be reminded that air has mass, and/or has more potential than you had thought. Subsequently, I think you'll start to appreciate what aerodynamics is, and does to car a lot more. (ergo: importance of front & rear aero.)


Or get more motor!

 

[Loki-GT]

Lethal and w3rkn,

Did either of you even read what I posted?? 2 other 2018's running within 1 mph of their normal.

I FELT THE CAR GO FLAT instantly as it shifted into the last gear before the 1/4. That wasn't wind, wind isn't the same for 4 runs straight either.

No, I don't need to be reminded of anything, what would be awesome is if people read before responding or assuming something. :shrug:

 

[Loki-GT]

Your time slips are showing the car is fighting the headwind the entire run . Your 1/8th trap is a little soft. I'd say 2 mph on the best run and accordingly your 1/4 about 4-5.

The problem was at the end of the run, yes I know wind can impact the entire run, the part I have tried desperately to make clear is the car goes flat shifting into the last gear to cross the 1/4 each time, the wind is not the same for each run.

Feeling acceleration nearly shut down is tangible, it's felt and I have run the car before and it most definitely did not go flat like this.

I took wind into account for every run, this magical wind that only impacted my car so much did not have the same impact on the 2 other 2018's at the track, BOTH drivers said they did not have any fall off going into gear at the end of the track and they ran more times than I did.

So, can we now move to the part that can explain why the friggin hell the car would do this every time or will the wind be the explanation people stick with ignoring my comments, 2 other Mustang owners experiences which means you people think I'm too stupid for words or can we dig into the possible cause.

 

[5.oh]

3.55's have you in 7th at the end of 1/4 mile? 3.15's are in the 9's in 6th?

 

[Loki-GT]

3.55's have you in 7th at the end of 1/4 mile? 3.15's are in the 9's in 6th?

I believe so and once the shift into 7th occurs it goes flat... kaput.

 

[drabon74]

Is there a way to data log without messing with the warranty? Sounds like the car is pulling timing

 

[saleen367]

Stupid question, but you don't by chance have your "my key" programmed for a mph limit do you? I only ask because I did just this when I had my car transported. I set mine to 80mph, but I don't know what the other options were when I set it up.



One thing I see is that MPH is extremely consistent regardless of all the other data. That, to me, would point to a MPH limiter issue. Having said that, its just an opinion.

 

[Loki-GT]

Is there a way to data log without messing with the warranty? Sounds like the car is pulling timing

I'm not sure, but I'm going to find out Monday I hope. I agree, it does feel like it's pulling timing or something like a limiter.

 

[Loki-GT]

Stupid question, but you don't by chance have your "my key" programmed for a mph limit do you? I only ask because I did just this when I had my car transported. I set mine to 80mph, but I don't know what the other options were when I set it up.

One thing I see is that MPH is extremely consistent regardless of all the other data. That, to me, would point to a MPH limiter issue. Having said that, its just an opinion.

Agreed 1000%! I didn't even think of that, the dealer had 2 previous test drivers and why the hell didn't I think of this. It feels exactly like no matter what, the car was going 114 and that's it.

Timeslip 2 and 4 show this, the car could have dipped into the 11.90's or 12.0's if not for the falling flat.

If that's it man I owe you a beer! :cheers:

 

[Rash]

Are you running a Lund tune or stock?

 

[Loki-GT]

Are you running a Lund tune or stock?

The car is bone stock, going on 2 months old and just hit 2,000 miles at the track. This MyKey idea sounds plausible, trying to remember if I have been at 114 in the past 2 months and I have done some runs but can't remember if I have gone that fast.

 

[dst3r]

I'm a new Mustang owner and haven't run mine yet, but I am an experienced drag racer and bracket race all season.

Your 1/8 mile times would traditionally correspond to about a 12.30 or so, which means with the GT's power and gearing the car is doing well on the top half of the track.
I have no doubt if you are noticing it fall over something with the car must be having an effect.
Do you know your position on the track when it hits 7th? If it's up top well beyond 1000' then it's unlikely even with the nose over you'll pick up into the 11's, so that's important to consider.
Do you have copies or did you have a look at the other 18 GT owners' timeslips? If you can compare the 60', 330' and 1/8 mile ETs that will tell you a lot. Most of your ET happens in the first 330' (acceleration isn't linear).
The variation in 60' indicates you either have some tire spin, your staging position is inconsistent, or maybe a little of both. Still wouldn't explain why the car tops out at 114 but you might find some ET there if you can bump in and just flicker the stage bulb. Every little bit of rollout will help your ET.

Hope you find the problem soon. I'm looking forward to getting mine out for T&T once I can get enough miles on it, maybe do some bracket racing after the points season.

 

[Loki-GT]

I'm a new Mustang owner and haven't run mine yet, but I am an experienced drag racer and bracket race all season.

Your 1/8 mile times would traditionally correspond to about a 12.30 or so, which means with the GT's power and gearing the car is doing well on the top half of the track.
I have no doubt if you are noticing it fall over something with the car must be having an effect.
Do you know your position on the track when it hits 7th? If it's up top well beyond 1000' then it's unlikely even with the nose over you'll pick up into the 11's, so that's important to consider.
Do you have copies or did you have a look at the other 18 GT owners' timeslips? If you can compare the 60', 330' and 1/8 mile ETs that will tell you a lot. Most of your ET happens in the first 330' (acceleration isn't linear).
The variation in 60' indicates you either have some tire spin, your staging position is inconsistent, or maybe a little of both. Still wouldn't explain why the car tops out at 114 but you might find some ET there if you can bump in and just flicker the stage bulb. Every little bit of rollout will help your ET.

Hope you find the problem soon. I'm looking forward to getting mine out for T&T once I can get enough miles on it, maybe do some bracket racing after the points season.

I know all of this and I'm not disputing any of its validity. My main point here is not how can I improve ET, it's how do I find out why the car goes instantly flat hitting 7th gear.

I think if MyKey isn't set to 114 then I have to figure out what could be causing something neither other owner had happen to their car.

I saw their slips but can't recall anything but the main part I looked at which was ET and MPH. Something is causing my car to fall completely flat and I need to figure that out and then head back to the track to see what happens.

Then I can delve into what it will take to get to the 11's.

 

[dst3r]

I know all of this and I'm not disputing any of its validity. My main point here is not how can I improve ET, it's how do I find out why the car goes instantly flat hitting 7th gear.

I think if MyKey isn't set to 114 then I have to figure out what could be causing something neither other owner had happen to their car.

I saw their slips but can't recall anything but the main part I looked at which was ET and MPH. Something is causing my car to fall completely flat and I need to figure that out and then head back to the track to see what happens.

Then I can delve into what it will take to get to the 11's.

I get ya and wasn't trying to suggest you needed to find the ET somewhere else. I was mainly responding to what you stated on page 2 about someone looking at the slips, but it only works if you have meaningful baseline data for comparison. The slips by themselves actually make sense and add up as you go down the track.

Like I said, I have no doubt if you're feeling something there's a cause with the car. I was just wondering what else is different compared to cars that ran in the same conditions last night...but none of that would explain your MPH capping at 114 which matches nothing else I've seen from anyone running low 12s with these cars. Good luck and hope you get it figured out soon.

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