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BMW M5 F90 (2018+) General Forums Engine, Exhaust, Drivetrain, Tuning Modifications    1/2 mile run with bootmod3

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      12-27-2020, 12:25 AM   #23
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Quote:
Originally Posted by GTATX View Post
Ya has to be something. Those are low numbers Also what's ur DA, Altitude and temps like?
Should I Uninstall bootmod3 and take it to dealer?
What should I ask them to look for?
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      12-27-2020, 01:15 AM   #24
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Quote:
Originally Posted by dk79 View Post
Should I Uninstall bootmod3 and take it to dealer?
What should I ask them to look for?
uninstall and re-test. gives you a base line of your stock car. only takes 5 mins to go back to stock.

Sound like your rubbish fuel is not helping. cant you get some E30 or E50 etc just as trial?
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      12-27-2020, 07:58 AM   #25
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Quote:
Originally Posted by dk79 View Post
Quote:
Originally Posted by GTATX View Post
Ya has to be something. Those are low numbers Also what's ur DA, Altitude and temps like?
Should I Uninstall bootmod3 and take it to dealer?
What should I ask them to look for?
Flash back to stock. Either use bootmod to log your car, or plug the jb4 back in put it on map 0 and log. Post your results or send them to one of your tuners.

After comfortable with how things look stock, either pick another map on jb4 or reload bm3 map, and log again.

My racechip results were similar to yours....at couple thousand da did 10.8-10.9 at 129mph.
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      12-27-2020, 10:52 AM   #26
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Quote:
Originally Posted by dk79 View Post
My best run between racechip, jb4, bootmod3 was with racechip 10.9 at 130mph
The trap is OK but the ET seems pretty slow, most JB4 cars are doing 10.5s or better, best I've seen is 10.0s. Same for flashed cars. Might be something wrong there.

Last edited by LongBeachDinanFan; 12-27-2020 at 11:37 AM..
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      12-27-2020, 08:45 PM   #27
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I am going back to stock, will take it in to dealer to check for any boost leaks, check fuel pump efficiency.
Car has new air filter, spark plugs and tires.
No cel but slow compared to every other car on the forum.
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      12-27-2020, 09:22 PM   #28
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Quote:
Originally Posted by dk79 View Post
I am going back to stock, will take it in to dealer to check for any boost leaks, check fuel pump efficiency.
Car has new air filter, spark plugs and tires.
No cel but slow compared to every other car on the forum.
More than likely it's gas related bud. U need to be at 93 or better 95 for good results. Can U list ur mods here?
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      12-27-2020, 09:25 PM   #29
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Quote:
Originally Posted by dk79 View Post
I am going back to stock, will take it in to dealer to check for any boost leaks, check fuel pump efficiency.
Car has new air filter, spark plugs and tires.
No cel but slow compared to every other car on the forum.
Also if u use dragy what's ur DA like?
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      12-27-2020, 11:46 PM   #30
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Quote:
Originally Posted by GTATX View Post
More than likely it's gas related bud. U need to be at 93 or better 95 for good results. Can U list ur mods here?
Only stage 1 tune bootmod3.
91 octane pump gas, for drag and 1/2 mile i add boostane to bring octane upto 97 or 98 to run 93 octane map.
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      12-27-2020, 11:48 PM   #31
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Also if u use dragy what's ur DA like?
1400 to 2300 da
Elevation 1000 ft above sea level.
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      12-28-2020, 01:35 AM   #32
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Quote:
Originally Posted by dk79 View Post
Quote:
Originally Posted by GTATX View Post
More than likely it's gas related bud. U need to be at 93 or better 95 for good results. Can U list ur mods here?
Only stage 1 tune bootmod3.
91 octane pump gas, for drag and 1/2 mile i add boostane to bring octane upto 97 or 98 to run 93 octane map.
Boostane could be a coz of lot of bad things as well. I would strongly recommend missing e85 vs boostane.
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      12-28-2020, 09:14 AM   #33
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Quote:
Originally Posted by GTATX View Post
Boostane could be a coz of lot of bad things as well. I would strongly recommend missing e85 vs boostane.
I use boostane professional only for race days, adding only 5 to 6 oz on a tank to raise the octane enough to run 93 map.
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      12-28-2020, 09:31 PM   #34
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What is a safe mixture for regular gas and E85 without having a proper e85 kit?
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      12-29-2020, 09:29 AM   #35
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Quote:
Originally Posted by GTATX View Post
I was able to do this but let go off gas too quick. Slope is incorrect as all of my runs are at same place and it always changes to good or bad. I think if I don't release gas I should be able to do 165mph plus with 16.3 or less.
Impressive. Does the BM3 have a top speed delimiter? I thought these cars have ignition cuts at around 158mph.
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      12-29-2020, 09:57 AM   #36
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Quote:
Originally Posted by greentrbo95gst View Post
What is a safe mixture for regular gas and E85 without having a proper e85 kit?
I don't have an e85 kit. U can start small like 2 gals e85 with rest fill up off best octane available and build from that. But I wouldn't go more than 7. For most people sweet spot is 4-5 gallons.
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      12-29-2020, 10:03 AM   #37
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Quote:
Originally Posted by Longboarder View Post
Quote:
Originally Posted by GTATX View Post
I was able to do this but let go off gas too quick. Slope is incorrect as all of my runs are at same place and it always changes to good or bad. I think if I don't release gas I should be able to do 165mph plus with 16.3 or less.
Impressive. Does the BM3 have a top speed delimiter? I thought these cars have ignition cuts at around 158mph.
I think cars have 2 limiters. Oem was 165 which was taken off by tuner. I have done 185mph so far donno where it stops.
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      12-31-2020, 10:16 AM   #38
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Do any of the piggy backs take care of the check engine light caused by primary cat deletes? Or is that flash only?
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      12-31-2020, 11:26 AM   #39
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Do any of the piggy backs take care of the check engine light caused by primary cat deletes? Or is that flash only?
Flash only.
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      01-21-2021, 07:32 AM   #40
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ur DA is extremely high and you are running an OTS Map which is more conservative usually. I have a 2018 Non comp with bootmod3 stage 2 AGG tune (OTS) with a full turbo back exhaust. I recently did 10.6 with similar DA as yours. only thing is my tyres were completely destroyed and am expecting better timing with brand new PS4s
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      01-23-2021, 08:33 PM   #41
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Good news,
Returned lease 2 months early and got 2021 m5 comp😁
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      01-23-2021, 08:34 PM   #42
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My bootmod3 won't work with the new m5 for a while, don't want dme to be physically tampered with.
Bootmod3 license with wifi agent up for sale😁.
Willing to trade for a jb4 with bluetooth.
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      01-28-2021, 02:01 PM   #43
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Quote:
Originally Posted by Longboarder View Post
Impressive. Does the BM3 have a top speed delimiter? I thought these cars have ignition cuts at around 158mph.
Yep, VMAX Delete is enabled on all Maps by default

Quote:
Originally Posted by dk79 View Post
My bootmod3 won't work with the new m5 for a while, don't want dme to be physically tampered with.
Bootmod3 license with wifi agent up for sale😁.
Willing to trade for a jb4 with bluetooth.
You can datalog your car for now, JB4 won't do much on the newer software anyways and with JB4 you will leave high than stock values in the data without being able to clear it as you can with Bootmod3.
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      01-28-2021, 04:51 PM   #44
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Yep, VMAX Delete is enabled on all Maps by default


You can datalog your car for now, JB4 won't do much on the newer software anyways and with JB4 you will leave high than stock values in the data without being able to clear it as you can with Bootmod3.
Terry at bms said jb4 should work as advertised on 2021 m5.
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