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      01-28-2020, 10:38 AM   #1
dk79
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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
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Last edited by dk79; 02-06-2020 at 04:04 PM..
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      01-28-2020, 10:41 AM   #2
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Quote:
Originally Posted by dk79 View Post
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.
take a look at your logs, if you cant read them send them to Terry or post on N54. - You might be under target by a lot.
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      01-28-2020, 10:47 AM   #3
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What were your numbers stock?
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      01-28-2020, 10:56 AM   #4
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Let's see the log of the run to see where it can be improved!
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      01-28-2020, 02:28 PM   #5
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I would suspect that your 91oct and 16oz of boostane is the issue. Boostane is trash, get some proper race fuel or at least a few gallons of E85.
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      01-28-2020, 02:32 PM   #6
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Quote:
Originally Posted by BMWDriverX View Post
I would suspect that your 91oct and 16oz of boostane is the issue. Boostane is trash, get some proper race fuel or at least a few gallons of E85.
I ran a 10.2 with it and someone else here ran a 10.1 on it. It trashes your plugs, but makes good power.
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      01-28-2020, 02:36 PM   #7
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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
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      01-28-2020, 04:36 PM   #8
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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.
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      01-28-2020, 04:39 PM   #9
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      01-28-2020, 07:24 PM   #10
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Quote:
Originally Posted by mike@x-ph.com View Post
What were your numbers stock?
Stock the best I could get was 11.2 to 11.3
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      01-28-2020, 09:52 PM   #11
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Quote:
Originally Posted by Fuel-It! View Post
Let's see the log of the run to see where it can be improved!
Logs added
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      01-28-2020, 10:31 PM   #12
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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..
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      01-28-2020, 10:39 PM   #13
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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
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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
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      01-28-2020, 10:44 PM   #14
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Quote:
Originally Posted by dk79 View Post
Logs added
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.
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      01-28-2020, 10:57 PM   #15
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Quote:
Originally Posted by Bmwusabmw View Post
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.
Update landscape screenshot of the log.
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?
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      01-28-2020, 10:58 PM   #16
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Quote:
Originally Posted by Bmwusabmw View Post
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.
Dme target was default per jb4 map not altered.
Tried but can't load the csv file.
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      01-28-2020, 10:59 PM   #17
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Quote:
Originally Posted by Bmwusabmw View Post
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.
That happened to me after a bottle of boostane professional. It ran really well for the first bottle though!

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?
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      01-28-2020, 11:00 PM   #18
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Quote:
Originally Posted by dk79 View Post
Update landscape screenshot of the log.
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?
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
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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
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      01-28-2020, 11:00 PM   #19
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Quote:
Originally Posted by dk79 View Post
Update landscape screenshot of the log.
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?
I'm not convinced that's your issue. But 1 can of professional ruined my plugs. It's a PITA to change them and a ~$500 dollar job at an independent shop.

Have Terry at BMS look at the logs.
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      01-28-2020, 11:01 PM   #20
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Quote:
Originally Posted by Bmwusabmw View Post
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.
Map2 is an additive map not absolute. I think seeing the csv would help so we can see the DME target.
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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
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      01-28-2020, 11:01 PM   #21
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Quote:
Originally Posted by Hockeytyme View Post
And I have done multiple runs of 10.15 on map2 with a mix of MS101 and 91. Map2 is very capable.
What is the ratio of the MS101 and 91 you use?

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...?
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      01-28-2020, 11:03 PM   #22
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Quote:
Originally Posted by gpdriver17 View Post
That happened to me after a bottle of boostane professional. It ran really well for the first bottle though!

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?
Could be, not sure if he checked for any codes but I’d be curious how 4th and 5th are looking 1,2,3 go by so fast its hard to nail something down.
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