01-28-2020, 10:38 AM | #1 |
First Lieutenant
84
Rep 346
Posts |
Not fast enough with jb4
I have jb4 and car is not as fast as expected.
1/2 tank 91 octane and 16oz boostane, jb4 map2, at drag strip can't get better than 11.15 at 128mph in 1/4 mile. Launch, release as soon as flag shows up 0 to 60 ft 1.78, no sigmificant wheel spin. What's wrong with my car, no codes either. I live in phoenix area. That night temp was 64, elevation 1200ft. Car shouldn't be this slow. Pics added. Please advise what to do? Feel very sad when others easily run mid 10s Updated pics with new firmware from terry. Running map 1 91 octane. Back and forth with a few logs this what he thinks will work for now Last edited by dk79; 02-06-2020 at 04:04 PM.. |
01-28-2020, 10:41 AM | #2 | |
Private
21
Rep 73
Posts |
Quote:
|
|
Appreciate
1
Mcc420475.00 |
01-28-2020, 10:47 AM | #3 |
Joint Chiefs of Staff
24265
Rep 190,952
Posts |
What were your numbers stock?
__________________
Check out our current sale by clicking on this link!
https://x-ph.com/sale/ Phone number 702-494-9435 |
Appreciate
0
|
01-28-2020, 02:32 PM | #6 |
Lieutenant
294
Rep 456
Posts |
|
Appreciate
1
BMWDriverX365.50 |
01-28-2020, 02:36 PM | #7 |
Major
348
Rep 1,237
Posts |
i ran a 10.15 with stock pipes, and intake. just JB4.
your launch isnt great at 1.7x- up the boostane to 32oz and run map 3 or 5 map 2 on 93 i run a 10.5-10.6 all day
__________________
.
|
Appreciate
0
|
01-28-2020, 04:36 PM | #8 |
Lieutenant
294
Rep 456
Posts |
It may not be installed right. We need some logs or at least a time on Map 0 and Map 2 back to back. I ran a 10.2 at 134 on Map 2. Only other mod was BMS intakes that don't add any power.
__________________
2018 BMW M5
2018 Porsche GT3 2023 Porsche Macan S 2023 Porsche 911 Turbo S |
Appreciate
0
|
01-28-2020, 04:39 PM | #9 |
Lieutenant General
19477
Rep 10,180
Posts |
Have you tried that new bad ass tune called Noelle?
__________________
2024 BMW M3 CS Frozen Solid White
2023 BMW M8 Coupe Competition Alpine White 2022 Porsche Carrera GTS Coupe Shark Blue 2020 Audi R8 V10 Performance Suzuka Gray 2012 Mercedes Benz C63 AMG Black Series Obsidian Black |
Appreciate
6
|
01-28-2020, 10:31 PM | #12 |
Lieutenant
294
Rep 456
Posts |
No idea why but your timing is fucked. Also fuel trims are maxed out. It may be a bad injector or plug. The timing is all over the place and getting pulled hard in some spots. I would not run it hard again until this gets figured out.
Last edited by gpdriver17; 01-28-2020 at 10:38 PM.. |
Appreciate
0
|
01-28-2020, 10:39 PM | #13 |
Captain
575
Rep 754
Posts |
Your 0-60 is horrible. Fixing that alone is going to pick up a ton of time. Launching as soon as flag pops might be a tad too soon. I don't know exactly when I launch to be honest but I'm pretty sure the flag is there for a 1/2 second to a second before I release the brake.
But, on the other hand your trap speed at 128 is pretty low. Like stock level. Usually if I blow my take off my trap speed is usually higher not lower. Your logs look off for sure, timing and fuel trims are bouncing all over. As others said, 91+boostane isn't the best. If you're going to the track at least try to find some Shell MS101 on map2. Anything higher than map2 you need MS109. And I have done multiple runs of 10.15 on map2 with a mix of MS101 and 91. Map2 is very capable. Also, do you know what the DA was? That plays a big role as well. Going from 3000 DA to 1500 I picked up 3 tenths on the same day/night. I only dream of negative DA's.. lol Maybe one day I'll get them
__________________
DME: 1848 DA 0-60 2.42 -- 1/8 Mile 6.38 -- 1/4 Mile 9.89 -- 60-130 5.91
Evolve: 1418 DA 0-60 2.48 -- 1/8 Mile 6.47 -- 1/4 Mile 10.05 -- 60-130 6.48 JB4: 1096 DA 0-60 2.54 -- 1/8 Mile 6.50 -- 1/4 Mile 10.05 -- 60-130 6.18 IG: @hockeytyme All runs on street with no prep on 21 inch wheels and PS4S tires |
Appreciate
0
|
01-28-2020, 10:44 PM | #14 |
Private
21
Rep 73
Posts |
Timing does not look like boostane is doing much there. There has been a few people who lost almost a half second in 1/4 mile and 60-130 after boostane fouled their plugs. Is this your first time on map 2?
How much boostane have you ran and for how long? Boostane actually ended up killing my O2s and my plugs after about 6-7 high volume uses. - also portrait mode sucks for reading those graphs, turn your phone landscape next time its much easier to read. Also what was your DME target for those runs? Post a full 1/4 mile log, either the CSV or landscape graph. |
Appreciate
0
|
01-28-2020, 10:57 PM | #15 | |
First Lieutenant
84
Rep 346
Posts |
Quote:
I have run maybe 1.5 cans boostane since I got the car and it has 16k+ miles so far. So 1.5 cans over 16k miles isn't too bad. Are there any instructions how to change the plugs on the car? |
|
Appreciate
0
|
01-28-2020, 10:58 PM | #16 | |
First Lieutenant
84
Rep 346
Posts |
Quote:
Tried but can't load the csv file. |
|
Appreciate
0
|
01-28-2020, 10:59 PM | #17 | |
Lieutenant
294
Rep 456
Posts |
Quote:
I don't think we need a full log though. The timing should be 15-22ish for the run. His is around almost 10 on the one run. Something is not right with that. Also the fuel trim being maxed out is weird. Maybe it's trying to compensate for an injector that's not working?
__________________
2018 BMW M5
2018 Porsche GT3 2023 Porsche Macan S 2023 Porsche 911 Turbo S |
|
Appreciate
0
|
01-28-2020, 11:00 PM | #18 |
Captain
575
Rep 754
Posts |
Plugs are 25 bucks a piece and about 2-300 for labor. They are a bitch to get to. But, I wouldn't jump to conclusion on those being the problem quite yet. Have BMS look at your logs
__________________
DME: 1848 DA 0-60 2.42 -- 1/8 Mile 6.38 -- 1/4 Mile 9.89 -- 60-130 5.91
Evolve: 1418 DA 0-60 2.48 -- 1/8 Mile 6.47 -- 1/4 Mile 10.05 -- 60-130 6.48 JB4: 1096 DA 0-60 2.54 -- 1/8 Mile 6.50 -- 1/4 Mile 10.05 -- 60-130 6.18 IG: @hockeytyme All runs on street with no prep on 21 inch wheels and PS4S tires |
Appreciate
1
gpdriver17293.50 |
01-28-2020, 11:00 PM | #19 | |
Lieutenant
294
Rep 456
Posts |
Quote:
Have Terry at BMS look at the logs.
__________________
2018 BMW M5
2018 Porsche GT3 2023 Porsche Macan S 2023 Porsche 911 Turbo S |
|
Appreciate
0
|
01-28-2020, 11:01 PM | #20 | |
Captain
575
Rep 754
Posts |
Quote:
__________________
DME: 1848 DA 0-60 2.42 -- 1/8 Mile 6.38 -- 1/4 Mile 9.89 -- 60-130 5.91
Evolve: 1418 DA 0-60 2.48 -- 1/8 Mile 6.47 -- 1/4 Mile 10.05 -- 60-130 6.48 JB4: 1096 DA 0-60 2.54 -- 1/8 Mile 6.50 -- 1/4 Mile 10.05 -- 60-130 6.18 IG: @hockeytyme All runs on street with no prep on 21 inch wheels and PS4S tires |
|
Appreciate
0
|
01-28-2020, 11:01 PM | #21 | |
Private
34
Rep 97
Posts |
Quote:
We have (R+M)/2 100 and 104 (I think R+M might be octane rating?) in Arizona which is equal to Research 105 and 110: https://www.sunocoracefuels.com/fuel/260-gt https://www.sunocoracefuels.com/fuel/260-gt-plus Is research 110 higher than VP109? Could you also say run map 6 on the 100 octane, or would you need the 104? EDIT: just re-read your post saying "Anything higher than map2 you need MS109" So then the 260 GT Plus is for anything higher than map 2...? |
|
Appreciate
0
|
01-28-2020, 11:03 PM | #22 | |
Private
21
Rep 73
Posts |
Quote:
|
|
Appreciate
0
|
Post Reply |
Bookmarks |
|
|