Dedicated 1/4 Mile Thread

kraftaffe · 08-25-2022, 06:06 AM

Quote:

Originally Posted by DealBMW

Well, take it to a technician and let them check your spark plugs, ignition coils, do an oil and air filter change (buy K&N or similar air filter). I assume there are no warning dashboard lights? Are you using the best fuel available in your town?

Yeah i have no dashboard lights and no codes. I thought that bad sparkplugs/coils would cause misfires o knocks but maybe these engines can sense these things and prevent them by pulling timing or something? I'm by no means an expert on logs but the only thing i can see that could possibly do this is the timing is a bit uneven at times. No knocks or misfires from what i can tell. I have good 93/98 fuel nearby so it shouldnt be a fuel issue.

I was planning on doing all of those things eventually so maybe i should just get to it and see if there is a difference.

Boosted_8 · 08-25-2022, 11:20 AM

Quote:

Originally Posted by kraftaffe

Yeah i have no dashboard lights and no codes. I thought that bad sparkplugs/coils would cause misfires o knocks but maybe these engines can sense these things and prevent them by pulling timing or something? I'm by no means an expert on logs but the only thing i can see that could possibly do this is the timing is a bit uneven at times. No knocks or misfires from what i can tell. I have good 93/98 fuel nearby so it shouldnt be a fuel issue.

I was planning on doing all of those things eventually so maybe i should just get to it and see if there is a difference.

How did you measure your times?

kraftaffe · 08-26-2022, 05:43 AM

Quote:

Originally Posted by Boosted_8

How did you measure your times?

With a dragy

Boosted_8 · 08-27-2022, 06:49 AM

@Bjames93 any updates?

Duta569 · 08-27-2022, 01:24 PM

Quote:

Originally Posted by Boosted_8

@Bjames93 any updates?

The weather's pushing 90°'s for the next week where he lives (I believe).

So if his mods are done and his car is ready, it's going to be a few weeks before the temperature and DA drops to ideal conditions to to get the best times out of his build.

Bjames93* · 08-29-2022, 04:52 AM

She is essentially done. Few tweaks to correct. Hoping to be able to dial her in later this week.

acizek · 08-31-2022, 04:43 AM

ECU and transmission stage 1 at a German tuner - 485hp and 880nM. Did not use launch control, also not the best part of the road, close to 11s should be doable.

peteinpa · 08-31-2022, 05:30 AM

Quote:

Originally Posted by acizek

ECU and transmission stage 1 at a German tuner - 485hp and 880nM. Did not use launch control, also not the best part of the road, close to 11s should be doable.

Curious what was your 0-60 time?

Boosted_8 · 08-31-2022, 11:55 AM

Quote:

Originally Posted by acizek

ECU and transmission stage 1 at a German tuner - 485hp and 880nM. Did not use launch control, also not the best part of the road, close to 11s should be doable.

I'm actually in Prague right now. It's still quite warm and a little humid for the best times, DA should drop negative in a couple of months.

acizek · 09-09-2022, 05:39 AM

Quote:

Originally Posted by Boosted_8

I'm actually in Prague right now. It's still quite warm and a little humid for the best times, DA should drop negative in a couple of months.

Welcome to my city, hope you`re having a blast!!

Antec800 · 09-09-2022, 02:10 PM

Quickest 60-130 7.37 68f 1844da -0.47% slope

choppedliver · 09-19-2022, 04:54 PM

Saw on the M5 forum that XHP is released for LCI.

Boosted_8 · 09-20-2022, 05:15 AM

Oh nice. M550i isn't on the drop down. I wonder if the M5 LCI software will just work for us. Tempted to risk it and find out ...

Manley00 · 09-20-2022, 07:23 AM

Quote:

Originally Posted by boosted_8

oh nice. M550i isn't on the drop down. I wonder if the m5 lci software will just work for us. Tempted to risk it and find out ...

dooo itttt! 😁

335BostonZ3 · 09-20-2022, 08:24 AM

Got a chance to do some official runs at track. 75 degree and about 2500 to 2200 DA. 2019 M550 with VRSF DP and E50 tune. Also have XHP stage 3 flashed.

Ran consistent 10.90 hotlapping. Best I ran was 10.85 and 10.86. In some good colder weather and better DA with prepped track (It was no prep and was cutting terrible 60 foots) I think I can break into the 10.5x range. What is the fastest stock turbo M550 with a signed by track official time slip. I don't go off draggy records just cause it's to easy to manipulate.

Duta569 · 09-20-2022, 08:45 AM

Quote:

Originally Posted by Boosted_8

Oh nice. M550i isn't on the drop down. I wonder if the M5 LCI software will just work for us. Tempted to risk it and find out ...

I was told it will not. M550 is still in development per XHP.

Duta569 · 09-20-2022, 08:47 AM

Quote:

Originally Posted by 335BostonZ3

Got a chance to do some official runs at track. 75 degree and about 2500 to 2200 DA. 2019 M550 with VRSF DP and E50 tune. Also have XHP stage 3 flashed.

Ran consistent 10.90 hotlapping. Best I ran was 10.85 and 10.86. In some good colder weather and better DA with prepped track (It was no prep and was cutting terrible 60 foots) I think I can break into the 10.5x range. What is the fastest stock turbo M550 with a signed by track official time slip. I don't go off draggy records just cause it's to easy to manipulate.

I ran a 10.69 at the track. I wanted to upload time slip to the draggy app with my run, but it wouldn't let me.

Why do you say draggy is easy to manipulate?

335BostonZ3 · 09-20-2022, 09:09 AM

Quote:

Originally Posted by Duta569

I ran a 10.69 at the track. I wanted to upload time slip to the draggy app with my run, but it wouldn't let me.

Why do you say draggy is easy to manipulate?

Because I have personally manipulated one to mess with my dad. It took me only a couple attempts. He told me I couldn't run a time so I did a hit down a hill and was able to get It to read that It was a -.12 slope and cut half a second off my actual time. I think they are really cool and are really accurate when used properly, but you can't use them for records.

Duta569 · 09-20-2022, 01:14 PM

Quote:

Originally Posted by 335BostonZ3

Because I have personally manipulated one to mess with my dad. It took me only a couple attempts. He told me I couldn't run a time so I did a hit down a hill and was able to get It to read that It was a -.12 slope and cut half a second off my actual time. I think they are really cool and are really accurate when used properly, but you can't use them for records.

I didn't know that that would make that much of a difference. My 10.69 run registered as a 10.73 on the draggy?

Boosted_8 · 09-20-2022, 05:03 PM

If the slope is more than -1% it's an invalid run anyway? You can do as much uphill as you want.

335BostonZ3 · 09-21-2022, 08:46 AM

Quote:

Originally Posted by Boosted_8

If the slope is more than -1% it's an invalid run anyway? You can do as much uphill as you want.

Correct you can make It read valid and less than 1%. I was able to make It read -.12 and It was probably 2.5-3% down hill.

Oldgixxer · 09-22-2022, 08:05 AM

Quote:

Originally Posted by 335BostonZ3

Correct you can make It read valid and less than 1%. I was able to make It read -.12 and It was probably 2.5-3% down hill.

Post it up so we can see

08-27-2022, 06:49 AM	#224
Boosted_8 Captain 441 Rep 749 Posts Drives: M550i Join Date: Apr 2021 Location: UK iTrader: (0)	@Bjames93 any updates?
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08-29-2022, 04:52 AM	#226
Bjames93* Private First Class 71 Rep 182 Posts Drives: G30 Join Date: Oct 2021 Location: Tri State iTrader: (0)	She is essentially done. Few tweaks to correct. Hoping to be able to dial her in later this week. Attached Images Last edited by Bjames93; 08-29-2022 at 04:58 AM..*
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08-31-2022, 04:43 AM	#227
acizek Second Lieutenant 78 Rep 247 Posts Drives: F90 M5, G30 M550d, F01 750i Join Date: Oct 2006 Location: Prague iTrader: (0) Garage List 2005 330d [0.00]	Custom tune 2018 M550d ECU and transmission stage 1 at a German tuner - 485hp and 880nM. Did not use launch control, also not the best part of the road, close to 11s should be doable. Attached Images
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09-09-2022, 02:10 PM	#231
Antec800 Lieutenant 128 Rep 462 Posts Drives: 340i x drive Join Date: Apr 2017 Location: Michigan iTrader: (0)	Quickest 60-130 7.37 68f 1844da -0.47% slope
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09-19-2022, 04:54 PM	#232
choppedliver Captain 160 Rep 758 Posts Drives: 2020 M550ix Pure Join Date: Nov 2011 Location: Australia iTrader: (1)	Saw on the M5 forum that XHP is released for LCI.
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09-20-2022, 05:15 AM	#233
Boosted_8 Captain 441 Rep 749 Posts Drives: M550i Join Date: Apr 2021 Location: UK iTrader: (0)	Oh nice. M550i isn't on the drop down. I wonder if the M5 LCI software will just work for us. Tempted to risk it and find out ...
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09-20-2022, 08:24 AM	#235
335BostonZ3 New Member 2 Rep 8 Posts Drives: 1998 Z3 2015 335i Xdrive Join Date: Jul 2019 Location: Kentucky iTrader: (0)	Got a chance to do some official runs at track. 75 degree and about 2500 to 2200 DA. 2019 M550 with VRSF DP and E50 tune. Also have XHP stage 3 flashed. Ran consistent 10.90 hotlapping. Best I ran was 10.85 and 10.86. In some good colder weather and better DA with prepped track (It was no prep and was cutting terrible 60 foots) I think I can break into the 10.5x range. What is the fastest stock turbo M550 with a signed by track official time slip. I don't go off draggy records just cause it's to easy to manipulate.
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09-20-2022, 05:03 PM	#240
Boosted_8 Captain 441 Rep 749 Posts Drives: M550i Join Date: Apr 2021 Location: UK iTrader: (0)	If the slope is more than -1% it's an invalid run anyway? You can do as much uphill as you want.
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