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

[GRich]

Hey guys.... ran an 11.995 last night at the track. Took me a run to get used to the BMS Switch (first run went into limp mode, not sure what I did wrong). Second run is when I got that time. Ran a 12.254 without the switch, so the switch is doing some work! Not sure how much lower my times are going to get until I put on some better tires (currently have all seasons).

Ran e30, BMS Switch plus all the mods in my signature line.

 

[Terry@BMS]

Welcome to the 11s!

 

[Kato_the_kia_stinger]

Hey guys.... ran an 11.995 last night at the track. Took me a run to get used to the BMS Switch (first run went into limp mode, not sure what I did wrong). Second run is when I got that time. Ran a 12.254 without the switch, so the switch is doing some work! Not sure how much lower my times are going to get until I put on some better tires (currently have all seasons).

Ran e30, BMS Switch plus all the mods in my signature line.

Nice! And your rolling on 20s? Do you know what the DA was?

 

[GRich]

Nice! And your rolling on 20s? Do you know what the DA was?

Yep, rolling on 20s, which also isn’t helping. According to the website, DA was 571 @ 10pm, which is when I ran that time.

 

[Kato_the_kia_stinger]

Yep, rolling on 20s, which also isn’t helping. According to the website, DA was 571 @ 10pm, which is when I ran that time.

That DA isn’t terrible, but yeah, getting some smaller wheels will definitely help. And they are likely pretty heavy too.

 

[Hyperjetta]

Yep, rolling on 20s, which also isn’t helping. According to the website, DA was 571 @ 10pm, which is when I ran that time.

This is making me feel good about my chances. I hope to join the club later this week!

 

[Tonkabob]

were still around terry just too much work going on in the shop to mess with the stinger right now. we never really had any problem at all hooking the car up when it was running around 23-24psi but as soon as we started flirting with the higher boost levels it wasnt possible with the track prep we were dealing with during the hotter months here. Nobody really starts running fast until fall/winter when all the no prep and grudge racing starts when we can do a track rental with some really good prep. The car trapped 126-127 maybe 4 passes the same night but just blew the tires off so the times werent too great. We have run a bunch of times that would still hold the top spot but until the car is capable of hooking up and not freaking out to get into the 10's we really dont care. Hope all you guys out there racing are doing well and getting better results!

What did the final tuning solution look like?

 

[Tonkabob]

Grich new on the board at #12 with a 11.99.

Here are the top 15 track times as of Sept 22nd, 2019.


1/4 Drag strip Top 15 times (Official Track List)
1/4 mile time, speed, 1/8 mile time, speed, 60

1. 11.548 @ 122.05, @Crewdawg130, 7.49 @95.66, 1.719
GT2 RWD, Hybrid turbo, JB4, WMI, FFP intakes, Ultimate HFC primary and secondary, FMIC, Drag radials, BMS brake snip.

2. 11.575 @ 119.91 Angel David, 7.45@ 94.17, 1.584
RWD, Lap3 Pro, WMI, DP, MP, FMIC, intake, Drag radials, BMS brake snip.


3. 11.599 @ 118.77, @Kato_the_kia_stinger 7.464 @93.86, 1.614
AWD, JB4 map8, K&N intake, VT snorkel, WMI, 93 octane, BMS brake snip

4. 11.633 @ 120.83, @ScottyCole, 7.508 @94.00, 1.625
GT1 AWD, Lap3 Pro, K&N Intakes, Lap3 HFC, Ark Mid, Borla Catback, UP FMIC, WMI, BMS brake snip, 93 octane

5. 11.711 @120.51, @TorkMe, 7.620 @95.61, 1.909
GT RWD, Tork ECU tune, Tork intake, muffler delete, no cats, fmic. 92/100 mix

6. 11.764 @116.79, @Angel, 7.542@92.18, 1.608
AWD, JB4 Map 5, AP Intakes, SSR Downpipes, SSR Muffler Deletes, Tork OCC, VT snorkel, BMS brake snip

7. 11.800 @ 116.47, @Tonkabob, 7.589 @ 92.89, 1.74
GT2 AWD, Tork ECU tune, Ark catback, JT intake, UP FMIC, E15, BMS brake snip

8. 11.921 @ 116.24, @GetStung 7.687 @ 93.26, 1.733
AWD, JB4 Map8, WMI, Secondary CAT bypass, Borla catback, Injen intake 93 octane + E85, E30, BMS brake snip

9. 11.946 @ 116.04 @C Mandy, 7.683 @91.08, 1.671
K&N typhoon intakes, JB4 ,Map8 WMI, 94 octane, mufflers removed, secondary cats hollowed out, interior removed (pass seat rear seats spare tire parcel shelf). and a hybrid version of the BMS burnout switch

10. 11.948 @ 118.11, @STINGER, 7.77 @ 92.99, 1.89
RWD, JB4 map 3, WMI, VT Snorkel, K&N Drop ins, High flow CAT, JunBL mid EVC cat back

11. 11.959 @ 117.80 @Kinvara8017, 7.75 @ 93.28, 1.838
GT2 AWD JB4, WMI, UP FMIC, throttle body, VT snorkel, BOV, Custom primary cat back straight pipe exhaust, brake mod

12. 11.995@Grich 116.71, @7.742 @ 91.26, 1.73
GT1 AWD JB4 map 8, WMI, K&N Intakes, Borla catback, Jun BL dp, BMS brake snip, E30

13. 12.022 @ 117.42, @Stinger33 7.82 @ 92.85, 1.94
RWD, JB4 map6, JT intake, JT exhaust, Throttle body, GFB BOV

14. 12.080 @ 115.37, @twn2rbo (Brian B.), 7.80 @ 90.75, 1.754
GT AWD, JB4, Injen intakes, SSR mid, Stillen Catback, BMS brake snip

15. 12.09 @ 114.83, Miguel P, 7.80 @ 91.61, 1.86
GT2 AWD, Tork ECU Stage 1, CX CAI, CX FMIC, muffler delete.

 

[GRich]

@Terry@BMS .... I have a question, my apologies if it's a stupid one. Attached are 2 logs from the track on Friday night. In reviewing them I noticed in the "e85" column there was a value of 12 and 14. Is this value supposed to correspond to the mix I was running? I ask because I was very careful to measure my mix, 5 gallons of 93 octane and 2 gallons of e85 (there was roughly about .5 gallons of 93 octane already in the tank), which should equate to an e30 mix. Also, the e85 I used was from a 5 gallon Sunoco drum, so the e85 should be pure. Just wondering... Thanks!

 

[Terry@BMS]

The E85 reading isn't accurate yet unless you've installed a separate flex fuel sensor. We added some test virtual E85 sensor logic to the firmware but it hasn't been fully sorted yet.

 

[GRich]

The E85 reading isn't accurate yet unless you've installed a separate flex fuel sensor. We added some test virtual E85 sensor logic to the firmware but it hasn't been fully sorted yet.

Understood... Thanks!

 

[Hyperjetta]

Soooo...gonna need more practice with that fun launch lol. My best time on Map 5 last night was 12.363 @ 114.3, 1.906 60' ...which was with me launching somewhere around 4 PSI @ 2400 RPM. Not enough to get it done. End result: Mustang beat me by .1 T_T

I realized afterwards that I had maybe an extra 100lbs or so of weight in the car that I did not have with me on my previous runs, so I'm thinking that was probably what caused my trap speed to drop from my previous best of 115. DAs weren't as low as I hoped, but the IAT were still pretty decent.

Looking at the logs, I'm wondering if the timing and everything looks right for race fuel (260 GT Plus). Terry, do you mind taking a peek?

 

[Kato_the_kia_stinger]

Soooo...gonna need more practice with that fun launch lol. My best time on Map 5 last night was 12.363 @ 114.3, 1.906 60' ...which was with me launching somewhere around 4 PSI @ 2400 RPM. Not enough to get it done. End result: Mustang beat me by .1 T_T

I realized afterwards that I had maybe an extra 100lbs or so of weight in the car that I did not have with me on my previous runs, so I'm thinking that was probably what caused my trap speed to drop from my previous best of 115. DAs weren't as low as I hoped, but the IAT were still pretty decent.

Looking at the logs, I'm wondering if the timing and everything looks right for race fuel (260 GT Plus). Terry, do you mind taking a peek?

What was the DA?

 

[Hyperjetta]

What was the DA?

Sorry, DA was ~1200

 

[Kato_the_kia_stinger]

Sorry, DA was ~1200

Negative?

 

[Helo58]

" ~ " means approximately as I have been told.

 

[Terry@BMS]

Looking at the logs, I'm wondering if the timing and everything looks right for race fuel (260 GT Plus). Terry, do you mind taking a peek?

Neither opens in the JB4 interface.

 

[Tonkabob]

Soooo...gonna need more practice with that fun launch lol. My best time on Map 5 last night was 12.363 @ 114.3, 1.906 60' ...which was with me launching somewhere around 4 PSI @ 2400 RPM. Not enough to get it done. End result: Mustang beat me by .1 T_T

I realized afterwards that I had maybe an extra 100lbs or so of weight in the car that I did not have with me on my previous runs, so I'm thinking that was probably what caused my trap speed to drop from my previous best of 115. DAs weren't as low as I hoped, but the IAT were still pretty decent.

Looking at the logs, I'm wondering if the timing and everything looks right for race fuel (260 GT Plus). Terry, do you mind taking a peek?

If you change the file name it wont load into the JB4 windows log viewer.
The timing gets just a little jiggy in a few spots especially in the 90 MPH range when you hit 19.5 PSI. But not terrible.
How does map 3 times compare to map 5?

 

[Hyperjetta]

Neither opens in the JB4 interface.

Sorry, I tried to clean it up so you were just looking at the two runs. Try this one.

 

[Terry@BMS]

Sorry, I tried to clean it up so you were just looking at the two runs. Try this one.

Looks fairly normal to me. IAT is up there, a larger IC might help further. Or better weather.