Drag/Acceleration The Official 1/4 mile track thread.

[Force-Fed Performance]

I hope people get out there and try to make this list even more inspiring. I haven't gotten to go back out since my last visit. Rain and heat.... track has been closed. I'll hopefully go next week, and while the DA will likely still be bad, I did my best run at 2700, so I should be OK.

Yea its been pretty much 95-99 everyday here and 2800+ DA so just gotta deal with it. We were doing our best during winter track rentals with really negative DA but having to fight the launch cause the track was so cold.

 

[JP's_Stinger]

What are the best time ever posted for a Stinger w/JB4 as only mod? Map 1 or 2....Has it ever happened, lol?!? I'm wondering what real life gains to expect when jumping from stock to JB4 map 1 or 2.

 

[Force-Fed Performance]

What are the best time ever posted for a Stinger w/JB4 as only mod? Map 1 or 2....Has it ever happened, lol?!? I'm wondering what real life gains to expect when jumping from stock to JB4 map 1 or 2.

I dont believe we ever ran ours with just the JB only.. However I do have dyno traces comparing all the different mods on various maps so if someone wants to see something specific I can post pictures

 

[Tonkabob]

Looks like FF is prepping for us a world record run or two ......break snip is gonna put these boys way fast of course they have some other goodies that will floor us....im calling world galaxy universe record being set this weekend Wash

FF is already snipped. I may get out next wed if i get a tune update before then.

 

[JP's_Stinger]

I dont believe we ever ran ours with just the JB only.. However I do have dyno traces comparing all the different mods on various maps so if someone wants to see something specific I can post pictures

I mean, if the best 1/4 mile run ever posted with a completely stock Stinger is 12.7 (average of 12.9-13), could we estimate a perfect 1/4 mile run with a Stinger JB4 map 1 at 12.3? 12.4? And possibly an average of 12.6? Does a 0.3/0.4sec improvement on the 1/4 mile seems realistic?

 

[turboAWD]

I am no expert, especially in 1/4 mile times, but I hear a rough guideline is 1 second / 100 hp increase. I believe jb4 does something like 70-100 hp? I would guess 0.5-0.7 improvement for map 2. That may be overestimating slightly, but I would imagine jb4 with good gas could get 12.1-12.2 with a perfect launch. I hear intakes can drop 0.2 off that, and are relatively cheap.

 

[JP's_Stinger]

I am no expert, especially in 1/4 mile times, but I hear a rough guideline is 1 second / 100 hp increase. I believe jb4 does something like 70-100 hp? I would guess 0.5-0.7 improvement for map 2. That may be overestimating slightly, but I would imagine jb4 with good gas could get 12.1-12.2 with a perfect launch. I hear intakes can drop 0.2 off that, and are relatively cheap.

The @StungBlueGT2 DIY intake with heat shielding setup is apparently shaving 0.2sec OFF of his 0-60 time, not his 1/4 mile time. Also, you get roughly +55-60whp with JB4 map 2.

I think your numbers might be a little too high (or low, depending which way you look at it).

 

[Brian B]

What are the best time ever posted for a Stinger w/JB4 as only mod? Map 1 or 2....Has it ever happened, lol?!? I'm wondering what real life gains to expect when jumping from stock to JB4 map 1 or 2.

I did run my car from stock 1/4 then tested it at the track with JB4 only which i still have + BMS switch but my times would be irrelevant for your purposes since im a mile above sea level with even worse DA air quality.
But I did go from 13.8 stock to 13.3's-13.4 to map 1-2 JB4+plugs only so take that for what it is given the 8,800 plus DA's typical in the summer for me.

 

[JP's_Stinger]

I did run my car from stock 1/4 then tested it at the track with JB4 only which i still have + BMS switch but my times would be irrelevant for your purposes since im a mile above sea level with even worse DA air quality.
But I did go from 13.8 stock to 13.3's-13.4 to map 1-2 JB4+plugs only so take that for what it is given the 8,800 plus DA's typical in the summer for me.

It's useful, at least when comparing the stock and JB4 run differences. By improving from 13.8 to 13.3, it makes a 3.623% gain on your 1/4 mile time. If we transpose that same gain to a rather more common 13sec flat 1/4 mile time for a totally stock Stinger : You get a 12.53sec 1/4 mile time with the JB4 only. To me, this seems absolutely plausible.

 

[Terry@BMS]

I mean, if the best 1/4 mile run ever posted with a completely stock Stinger is 12.7 (average of 12.9-13), could we estimate a perfect 1/4 mile run with a Stinger JB4 map 1 at 12.3? 12.4? And possibly an average of 12.6? Does a 0.3/0.4sec improvement on the 1/4 mile seems realistic?

Map1 is weak sauce (not sure if people even run it at the track) but I've seen plenty of 12.4s and better on just map2 with pump gas. And minimal effort.

 

[turboAWD]

The @StungBlueGT2 DIY intake with heat shielding setup is apparently shaving 0.2sec OFF of his 0-60 time, not his 1/4 mile time. Also, you get roughly +55-60whp with JB4 map 2.

I think your numbers might be a little too high (or low, depending which way you look at it).

Thanks. But wouldn't 0.2 off 0-60 also be (at least) 0.2 off 1/4 mile? I believe 0.1 60-ft improvement ends up being like 0.15-0.25 improvement at the end?

 

[JP's_Stinger]

Thanks. But wouldn't 0.2 off 0-60 also be (at least) 0.2 off 1/4 mile? I believe 0.1 60-ft improvement ends up being like 0.15-0.25 improvement at the end?

Hum...maybe I made a mistake. I thought he meant 0.2 OFF of 0-60mph! Is it 0-60, as in "60ft on the 1/4 mile"?

 

[JP's_Stinger]

Map1 is weak sauce (not sure if people even run it at the track) but I've seen plenty of 12.4s and better on just map2 with pump gas. And minimal effort.

I thought you stated, on a previous post, that to use map2, you absolutely need 93 octane gas...? I do NOT have access to 93 OCT, where I live. Only 91 OCT at Shell, Costco, Ultramar (part of Parkland Fuel Corp).

 

[Terry@BMS]

I run map2 on CA 91 octane all the time, never an issue. Your mileage on Canadian fuel may vary. As has been discussed log both and see what looks/works best for your particular situation.

 

[turboAWD]

Hum...maybe I made a mistake. I thought he meant 0.2 OFF of 0-60mph! Is it 0-60, as in "60ft on the 1/4 mile"?

No, it was 0.2 off 0-60 mph. But, I figured, it couldn't get WORSE in the 1/4, since you're almost doubling that speed. For instance, let's say you're around 60 mph by 1/8 mile - if you're 0.2 faster, shouldn't that carry over to the 1/4?

My reasoning was that a better 0-60 ft time has a multiplicative effect, but I was using that as a reason why I wouldn't expect the 0-60 mph gain to be lost in the 1/4..

However, I could be totally wrong.

 

[JP's_Stinger]

No, it was 0.2 off 0-60 mph. But, I figured, it couldn't get WORSE in the 1/4, since you're almost doubling that speed. For instance, let's say you're around 60 mph by 1/8 mile - if you're 0.2 faster, shouldn't that carry over to the 1/4?

My reasoning was that a better 0-60 ft time has a multiplicative effect, but I was using that as a reason why I wouldn't expect the 0-60 mph gain to be lost in the 1/4..

However, I could be totally wrong.

I like your reasoning This makes total sense. Anyway, as Terry said, on map 2 with 91 OCT, I can expect a 12.4-12.5sec 1/4 mile run, which is the info I was Iooking for. I'll add a catback next year and that'll be it for me. Totally satisfied with the car

 

[StungBlueGT2]

No, it was 0.2 off 0-60 mph. But, I figured, it couldn't get WORSE in the 1/4, since you're almost doubling that speed. For instance, let's say you're around 60 mph by 1/8 mile - if you're 0.2 faster, shouldn't that carry over to the 1/4?

My reasoning was that a better 0-60 ft time has a multiplicative effect, but I was using that as a reason why I wouldn't expect the 0-60 mph gain to be lost in the 1/4..

However, I could be totally wrong.

You are correct. Me and multiple other people dropped about 0.2sec off 0-60mph times and that advantage would be held throughout the 1/4m at the very least. I agree the gain should have a slight multiplicative effect and could be 0.3sec+ off 1/4m times.

 

[Doel]

I am no expert, especially in 1/4 mile times, but I hear a rough guideline is 1 second / 100 hp increase. I believe jb4 does something like 70-100 hp? I would guess 0.5-0.7 improvement for map 2. That may be overestimating slightly, but I would imagine jb4 with good gas could get 12.1-12.2 with a perfect launch. I hear intakes can drop 0.2 off that, and are relatively cheap.

I would absolutely not use that guideline, especially for our cars. A car with 100 hp is going to lose a lot more than 1 second if it's increased to 200 hp. Just as a car with 600 hp is going to lose a lot less than 1 second if it's increased to 700 hp. The faster you go, the more power you need to see any real benefit.

 

[turboAWD]

I would absolutely not use that guideline, especially for our cars. A car with 100 hp is going to lose a lot more than 1 second if it's increased to 200 hp. Just as a car with 600 hp is going to lose a lot less than 1 second if it's increased to 700 hp. The faster you go, the more power you need to see any real benefit.

Well, sure.. It all depends on "working range" and "%age different from base". I think that guideline was from a Corvette forum - they're in the 400-600 hp range, so it's similar to our power levels. We're a bit lower in power (higher %age increase), but heavier, so perhaps it's more like 0.8/100 hp?

 

[Crewdawg130]

At the end of the day everyone do what you want with what you have. Everyone is taking different paths to get where they want. At the end, the community will figure out the combo and then we all be set. What I’m doing might not work, what someone else is doing might. At the end we all win.
We’ve seen 126mph so that says something. If we get the car to hook then we might get a good number that relates to the MPH. Is always fun, to me, to play in the unknown.