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2010 2011 BMW 5 Series Forum F10 F10 Technical Topics Engine, Transmission, Exhaust, Drivetrain, ECU Software Modifications 2014 bmw 550xi + BMS stage 1
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      01-25-2014, 01:44 AM   #67
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The more I read this, the more confused I get. Catless downpipes, N63, boost leak, N63TU, check this link, look at that graph, power drop, under rated, over rated, stageII but not for 2014...!!
I'm looking for a very simple answer to a very simple question, someone please help:
A stock 2014 550i makes 445hp at the crank according to BMW.
In layman's terms, how more power does the BMS Stage1 tune add?
I wish they would post this simple answer on their website, like Dinan does, vs posting graphs. The consumer cares about the delta I would imagine.
+50hp? +75hp? Just looking for a simple answer, and a number really. Thank you!
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      01-25-2014, 02:15 AM   #68
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Varun like I've told you and someone else. There is a thread on this forum section. Under engine and exhaust that says N63tu stage 1.
All the info is there.

Tune is adding 60+hp
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      01-25-2014, 02:28 AM   #69
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Quote:
Originally Posted by varun View Post
The more I read this, the more confused I get. Catless downpipes, N63, boost leak, N63TU, check this link, look at that graph, power drop, under rated, over rated, stageII but not for 2014...!!
I'm looking for a very simple answer to a very simple question, someone please help:
A stock 2014 550i makes 445hp at the crank according to BMW.
In layman's terms, how more power does the BMS Stage1 tune add?
I wish they would post this simple answer on their website, like Dinan does, vs posting graphs. The consumer cares about the delta I would imagine.
+50hp? +75hp? Just looking for a simple answer, and a number really. Thank you!
67 WHP 57wtq gains over stock clear enough?
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      01-25-2014, 02:35 AM   #70
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Stock was 408 on this dyno. Std.

So top numbers on the right are sae/ std left. Hp only

Bottom numbers are sae hp/tq

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      01-25-2014, 01:41 PM   #71
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Quote:
Originally Posted by badblack550xi View Post
67 WHP 57wtq gains over stock clear enough?
ABSOLUTELY, thank you!
So that's closer to +80HP at the crank. Impressive!
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      01-25-2014, 01:45 PM   #72
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Now let's see a dyno with no downpipes and no drop after 5.2k. It dips lower then stock! Significant drop!
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      01-25-2014, 06:04 PM   #73
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Quote:
Originally Posted by ARadoncic550 View Post
Now let's see a dyno with no downpipes and no drop after 5.2k. It dips lower then stock! Significant drop!
Get the tune and dyno.

I had a recall on the software on my car.. Went to BMW and updated
After that went to dyno and car still dropping but after 5500

Instead of 5000k in the above graph.

Today I installed full exhaust.. After I let car adapt I will redyno.
I really feel like having catless downpipes with stock exhaust hurts performance on our cars because the 550i is a luxury car and Is extremely restricted. So the quick boost and surge of exhaust air from going catless to a wall of restriction may be the prime target. I will know in a few weeks after I let it adapt to the free flow.

M5 has gains from the catless downpipes with stock exhaust because the stock system that comes with the M is a 3 inch piping with no resonators. And high flow mufflers. So when they go catless I think the car let's out the extra exhaust easily vs the 550i.

But who knows.
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      01-25-2014, 07:21 PM   #74
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Yea. I get what you are saying. What is the standard rule of thumb for our cars to adapt to bolt ons or tunes? Instant? 20miles? 50 miles? Does it help if you drive the car aggressively in order to help it adapt better?
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      01-25-2014, 07:55 PM   #75
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Quote:
Originally Posted by ARadoncic550 View Post
Yea. I get what you are saying. What is the standard rule of thumb for our cars to adapt to bolt ons or tunes? Instant? 20miles? 50 miles? Does it help if you drive the car aggressively in order to help it adapt better?
Serge would have an answer to that. Aka bad Russian
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      01-25-2014, 08:49 PM   #76
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New exhaust? Prove it!
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      01-25-2014, 11:06 PM   #77
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Quote:
Originally Posted by ARadoncic550 View Post
Yea. I get what you are saying. What is the standard rule of thumb for our cars to adapt to bolt ons or tunes? Instant? 20miles? 50 miles? Does it help if you drive the car aggressively in order to help it adapt better?
Id say up to 500 miles to adopt to tune... And after than with in 10 miles what you have to do is the ecu reset and ten drive hard car feels brutal. I will start posting all the tips on my forum booostednation.net for the 550 cars
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      01-25-2014, 11:23 PM   #78
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Quote:
Originally Posted by ARadoncic550 View Post
Yea. I get what you are saying. What is the standard rule of thumb for our cars to adapt to bolt ons or tunes? Instant? 20miles? 50 miles? Does it help if you drive the car aggressively in order to help it adapt better?
Most piggy back tuned turbo BMW adaptation has been around 50-100 miles of driving, with 15-20 hard pulls in 2-4th gears through redline....I've had 2 tuned 135i's, a tuned 335i, and a tuned 335d and that was my experience. N63 should be no different.
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      01-25-2014, 11:25 PM   #79
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Quote:
Originally Posted by combatbmw View Post
Get the tune and dyno.

I had a recall on the software on my car.. Went to BMW and updated
After that went to dyno and car still dropping but after 5500

Instead of 5000k in the above graph.

Today I installed full exhaust.. After I let car adapt I will redyno.
I really feel like having catless downpipes with stock exhaust hurts performance on our cars because the 550i is a luxury car and Is extremely restricted. So the quick boost and surge of exhaust air from going catless to a wall of restriction may be the prime target. I will know in a few weeks after I let it adapt to the free flow.

M5 has gains from the catless downpipes with stock exhaust because the stock system that comes with the M is a 3 inch piping with no resonators. And high flow mufflers. So when they go catless I think the car let's out the extra exhaust easily vs the 550i.

But who knows.
M5 oem exhaust is 3" as you state, and has no crush points like the oem 550i one does, but it does have resonators, same as the 550i oem. The difference is, the M5 oem exhaust does not have a center muffler, and replaces it with a crossover/x-pipe.
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      01-25-2014, 11:46 PM   #80
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Quote:
Originally Posted by badblack550xi View Post
Id say up to 500 miles to adopt to tune... And after than with in 10 miles what you have to do is the ecu reset and ten drive hard car feels brutal. I will start posting all the tips on my forum booostednation.net for the 550 cars
Id love to know what your talking about let me know when you post it. I wanna try that.
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      01-25-2014, 11:47 PM   #81
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Quote:
Originally Posted by scott135i View Post
M5 oem exhaust is 3" as you state, and has no crush points like the oem 550i one does, but it does have resonators, same as the 550i oem. The difference is, the M5 oem exhaust does not have a center muffler, and replaces it with a crossover/x-pipe.
Yes hence better flowing oem system. So Downpipes can do there jobs. vs 550s that kill the cars flow. and possibly hurting the downpipe gains
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      01-25-2014, 11:48 PM   #82
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Quote:
Originally Posted by xiljustin View Post
New exhaust? Prove it!
newb go look in video section
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      01-26-2014, 07:58 PM   #83
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Quote:
Originally Posted by badblack550xi View Post
Id say up to 500 miles to adopt to tune... And after than with in 10 miles what you have to do is the ecu reset and ten drive hard car feels brutal. I will start posting all the tips on my forum booostednation.net for the 550 cars
How do you reset ECU on this car? Pull put battery? Won't this just defeat the purpose?
So after 500 miles rest ECU? Then I drive hard for 10 miles?
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      01-26-2014, 09:37 PM   #84
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Quote:
Originally Posted by ARadoncic550 View Post
How do you reset ECU on this car? Pull put battery? Won't this just defeat the purpose?
So after 500 miles rest ECU? Then I drive hard for 10 miles?
Don't worry bro. Black always does that. It will take him a few more days to answer. Cause he knows that it's a good question that he has the answer too so my advice. Just sit back keep hitting refresh. And one day he will post up the answer.

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      01-26-2014, 10:01 PM   #85
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Ahahahhah you got it broski!
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      01-27-2014, 09:33 AM   #86
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I've put close to 500 miles on my 2014 550 on the revised Stage 1 tune and this thing is a straight up monster. I have way more power than grip that my 245's snow tires could handle. On the highway going 40ish and in 3rd gear when i punch it in 3rd gear the traction control lights goes off like mad. This is where i miss my awd. I can't put the power down with the RWD setup now.

Alan
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      01-27-2014, 09:40 AM   #87
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Quote:
Originally Posted by Alan l. View Post
I've put close to 500 miles on my 2014 550 on the revised Stage 1 tune and this thing is a straight up monster. I have way more power than grip that my 245's snow tires could handle. On the highway going 40ish and in 3rd gear when i punch it in 3rd gear the traction control lights goes off like mad. This is where i miss my awd. I can't put the power down with the RWD setup now.

Alan
I can only imagine your car with... I installed S2 w/ Serg last night....

I am on 245 Michelin A/S 3's and I was lighting up traction control in 1st and 2nd gear at any speed below 40-45 mph. Granted it's cold, but I have an awd.

Will text you later re: dyno. Waiting to hear back on availability. Really wonder how the S1 TU feels vs. the S2 pre-TU, let alone how it dyno's and how the compare side vs. side.
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      01-27-2014, 09:42 AM   #88
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Quote:
Originally Posted by ARadoncic550 View Post
How do you reset ECU on this car? Pull put battery? Won't this just defeat the purpose?
So after 500 miles rest ECU? Then I drive hard for 10 miles?
Disconnecting the battery may or may not do it. I'd guess not based on what I've read.


If you have a bavarian technic cable, you can reset the ecu (which means resetting all ECU adaptations) through the software.
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