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BMW M5 F90 (2018+) General Forums Engine, Exhaust, Drivetrain, Tuning Modifications    JB4 Map 2 - 10.2 1/4 mile!!!

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      11-30-2019, 03:21 PM   #1
gpdriver17
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JB4 Map 2 - 10.2 1/4 mile!!!

I install a JB4 and the BMS intake yesterday. Install was pretty simple, much easier than I expected. Only issue was getting the turbo inlet off, that was kind of a PITA.

Took the car out this morning with a little E85 a lot of boostane mixed with 91 octane. I only wanted to run map 2 before having the logs reviewed and really pushing it. Expected the car to run a 10.5-10.6 1/4 mile. The other week it did a 10.8 stock. Same road, same conditions, first run was a 10.3! Second was a 10.2 at 135mph!!! The max boost used was 22psi. So there's still a lot of room to go. I don't know if my car is a freak or what, but I think at a track with better tires and more boost this thing would be in the 9s.



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Last edited by gpdriver17; 11-30-2019 at 04:59 PM..
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      11-30-2019, 03:41 PM   #2
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10.2 is moving!

For the intake it's supposed to come with foam tape you wrap around the strut brace hole, maybe you are missing that? Keeps it from rattling!

On app being a separate purchase it's broken apart for customers who own multiple cars or upgrade cars often. The one app purchase lasts forever.
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      11-30-2019, 03:47 PM   #3
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Quote:
Originally Posted by Fuel-It! View Post
10.2 is moving!

For the intake it's supposed to come with foam tape you wrap around the strut brace hole, maybe you are missing that? Keeps it from rattling!

On app being a separate purchase it's broken apart for customers who own multiple cars or upgrade cars often. The one app purchase lasts forever.
Thanks, I was shocked about it! I want to get the logs reviewed and make sure everything is okay before moving on to map 3 or 4. Honestly the car is too fast even now haha. But I'd like to take it to a track someday and see if it can break into the 9's.

Ahh!!! I did not get any foam tape... that would probably help.

Okay, I guess that makes sense. I just hate paying for an app after spending so much on everything else.
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      11-30-2019, 07:51 PM   #4
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Wow man. Great stuff...these cars are crazy fast. 22psi? That's really crazy. I got nowhere near these times at 22psi of boost. Enjoy!
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      11-30-2019, 08:53 PM   #5
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Quote:
Originally Posted by FloridaM5 View Post
Wow man. Great stuff...these cars are crazy fast. 22psi? That's really crazy. I got nowhere near these times at 22psi of boost. Enjoy!
It was actually only 22 for the first 2-3 gears! After that it came down to about 20.



How high do most tuners go? 25?

You probably don't have weather this cold in Florida... maybe that's why? I went out at 7AM to get the coldest air possible. I'll have to do a run in the summer mid afternoon sometime to see the difference.
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      11-30-2019, 09:05 PM   #6
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Quote:
Originally Posted by gpdriver17 View Post
Quote:
Originally Posted by FloridaM5 View Post
Wow man. Great stuff...these cars are crazy fast. 22psi? That's really crazy. I got nowhere near these times at 22psi of boost. Enjoy!
It was actually only 22 for the first 2-3 gears! After that it came down to about 20.

[img]
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[/img]

How high do most tuners go? 25?

You probably don't have weather this cold in Florida... maybe that's why? I went out at 7AM to get the coldest air possible. I'll have to do a run in the summer mid afternoon sometime to see the difference.
Maybe so man...that makes sense to me. I tested several jb4 maps, including a mild custom one (map6), all with Terry's assistance. Finally found a 10.2, but using map7 on top of my ecu flash (27psi absolute). Anyways, that's awesome work on your part....love it. Continue to be amazed by the numbers we're seeing on almost stock cars! And the jb4 is super cool.
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      12-05-2019, 01:37 PM   #7
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Wow! that is definitely quick, congrats!!
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      12-05-2019, 04:40 PM   #8
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That's just insane! A near 9 second sedan at over 4,000 LBS with just an intake, piggyback, and some race gas! With these numbers you can smoke most "supercars" and all those electric Teslas like they're nothing, NOTHING!!
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      12-09-2019, 10:47 AM   #9
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Nice!!
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      12-11-2019, 11:21 AM   #10
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Phenomano!!! I would be installing meth system on next it case you do want to increase boost.
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      12-12-2019, 07:31 PM   #11
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Quote:
Originally Posted by gpdriver17 View Post
I install a JB4 and the BMS intake yesterday. Install was pretty simple, much easier than I expected. Only issue was getting the turbo inlet off, that was kind of a PITA.

Took the car out this morning with a little E85 a lot of boostane mixed with 91 octane. I only wanted to run map 2 before having the logs reviewed and really pushing it. Expected the car to run a 10.5-10.6 1/4 mile. The other week it did a 10.8 stock. Same road, same conditions, first run was a 10.3! Second was a 10.2 at 135mph!!! The max boost used was 22psi. So there's still a lot of room to go. I don't know if my car is a freak or what, but I think at a track with better tires and more boost this thing would be in the 9s.



Map 2 can be quite impressive. I was running 91 and went and filled up with pump 100 and on my way back and decided to give it a run and got a 10.15 I too was shocked as it was only adding 5lbs of boost. You will notice if you haven't already, that adding another 1 or 2lbs doesn't give you as much more power as you would think. I think that plus 5 that map2 gives you is a sweet spot for these cars.

I ran a 10.32 on map2 last night on 91 with only enough boostane to take me to 96. Launch control didn't engauge and 0-60 was 3.05

Pretty impressive and not that much slower than my 10 flat runs on map6 with more boost and MS109. For daily or weekends, just tossing in some boostane and being on map2 for a 10.2 is nothing to complain about that's for sure
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