Ordered BMS Stage 1 Tune

[gmd2003]

Originally Posted by Northern X5M

Lucky with your DA. Best I've seen here is about +2000 and that is around 5-10C. Got to love the mineshaft air. Back when I was running a NA motor the difference between my setup and an identical vehicle at sea level was 0.5 seconds and about 5 mph.

Oh yeah my header/ intake tune S85 was the same way . Considering the DA difference I'm very pleased with the tune gains . It's def nice living in a city that is at or below sea level .... As long as it doesn't rain lol

[PetrolFumes]

Originally Posted by MpowerMike

Installed it Yesterday wow what a difference pulls much harder and the turbo spool is much louder now especially with my cat less downpipes

Are you getting a check engine light with the catless DPs?

[MpowerMike]

Originally Posted by MPowerrF10

Are you getting a check engine light with the catless DPs?

Yes i am , I'm using a code scanner to erase it most of the time.

[PetrolFumes]

Originally Posted by MpowerMike

Yes i am , I'm using a code scanner to erase it most of the time.

No other issues other than a CEL?

[MpowerMike]

Originally Posted by MPowerrF10

No other issues other than a CEL?

Nope!

[mstmng]

Originally Posted by MpowerMike

Yes i am , I'm using a code scanner to erase it most of the time.

could you please give me more info on code scanner!
i would like to use it as well

[PetrolFumes]

Originally Posted by gmd2003

Def most of the gain was the DP's . The ECU limits peak gains with DP's but the gains in the midrange and the faster turbo spool up is substantial .

Ecu limits oeak gains with DPs??

[C's Bimmer]

BMS tune rocks, especially if you have a full exhaust system. Love it!

[gmd2003]

Originally Posted by MPowerrF10

Ecu limits oeak gains with DPs??

The ECU has specific targets for airflow and power output , and continually adjusts boost timing etc to make this power level . SS did before and after dyno 'a with catless DP 'a and the peak whp gain was only 10hp ,but with almost 40whp gained in the midrange . Very good gains but the ECU doesn't allow the peak hp to increase much . You have to add a piggyback or a tune for that .

[m6beast]

Originally Posted by gmd2003

Oh yeah my header/ intake tune S85 was the same way . Considering the DA difference I'm very pleased with the tune gains . It's def nice living in a city that is at or below sea level .... As long as it doesn't rain lol

gmd2003 I saw one post where you were saying when you ran 4lb boost on vbox it showed 3.5lb boost was stronger. Did you give it enough time to adapt? I tried to go back to 3.5 from 4lb and it seemed slower. I drove it for a week then I upped the boost and its hauling ass again. I could burn the hell out of second gear at 4lbs but when i went to 3.5 it seemed slower than what I was used to. Just wondering.
Thanks for the info
G

[gmd2003]

Originally Posted by m6beast

gmd2003 I saw one post where you were saying when you ran 4lb boost on vbox it showed 3.5lb boost was stronger. Did you give it enough time to adapt? I tried to go back to 3.5 from 4lb and it seemed slower. I drove it for a week then I upped the boost and its hauling ass again. I could burn the hell out of second gear at 4lbs but when i went to 3.5 it seemed slower than what I was used to. Just wondering.
Thanks for the info
G

Yep for my car 3.75 seems to be the sweet spot on 93 octane ,4 is def not faster even after adapting . Maybe more tq down low but it messes up the CP goodness above 6k which more than counters that . Probably bc the CP is already running more boost up top than the standard car .

[m6beast]

Originally Posted by gmd2003

Yep for my car 3.75 seems to be the sweet spot on 93 octane ,4 is def not faster even after adapting . Maybe more tq down low but it messes up the CP goodness above 6k which more than counters that . Probably bc the CP is already running more boost up top than the standard car .

Makes sense.
I picked a vbox, now time do some testing on both cars. throw the drag radials on and see what I get.
What's the best mph to start when running for 60-130, any suggestions?
i think second gear would be a good start, less chance for error compared to starting off from a dig.
Ill do some 1/4 mile and make sure to pass the 130 mph mark to give both 1/4 runs and 60-130.
Just need some pointers, want to get some good data for everyone to look at.
Hopefully will find a good level stretch around here, if not I guess onto the track
Thanks

[Andym3100k]

Originally Posted by m6beast

Makes sense.
I picked a vbox, now time do some testing on both cars. throw the drag radials on and see what I get.
What's the best mph to start when running for 60-130, any suggestions?
i think second gear would be a good start, less chance for error compared to starting off from a dig.
Ill do some 1/4 mile and make sure to pass the 130 mph mark to give both 1/4 runs and 60-130.
Just need some pointers, want to get some good data for everyone to look at.
Hopefully will find a good level stretch around here, if not I guess onto the track
Thanks

Bro, love to see your number compare with gmd2003.

[JPMD]

Can I get a link info/ordering for the VBOX?

Thanks guys

[m6beast]

Originally Posted by Andym3100k

Bro, love to see your number compare with gmd2003.

Hopefully I'm close in comparison his car runs strong. I don't have CP package so don't know how comparable it will be. Either way we see where she stands.

[gmd2003]

Awesome it will be good to have some data from more people . I found a perfect zero slope road to do testing which is optimal but try to get as close to zero as possible . The downslope makes a huge difference in times so it's hard to compare a 0 to a -2.5 for instance .( less than -3% is legal though ) . I would start in 2nd gear at around 50mph , this puts you in the meat of the power band and gets you up to full boost by 60 ( may have traction issues is my only caveat ) . The 60-130 times from an isolated run like this is usually .3-.4 sec faster than an imbedded 60-130 mph in a 1/4 mile run . Also the DA plays a huge role in 60-130 mph ( I believe even more than the 1/4 mile trap ) . To give you a reference point my tuned 1/4 mile imbedded 60-130 was 7.8 on a + 2000 DA 0 slope and 7.5 on a isolated 60-130 0 slope +2000 DA . Let me know if you need anything !
George

[Mike@N54Tuning.com]

Originally Posted by m6beast

Makes sense.
I picked a vbox, now time do some testing on both cars. throw the drag radials on and see what I get.
What's the best mph to start when running for 60-130, any suggestions?
i think second gear would be a good start, less chance for error compared to starting off from a dig.
Ill do some 1/4 mile and make sure to pass the 130 mph mark to give both 1/4 runs and 60-130.
Just need some pointers, want to get some good data for everyone to look at.
Hopefully will find a good level stretch around here, if not I guess onto the track
Thanks

BMS always got the best 60-130 times starting in 3rd at around 45mph. When you start in 2nd you have an extra shift that slows the time a bit. But if you are just trying to compare with others as long as you start the same way the comparison will still be valid.

Mike

[gmd2003]

Originally Posted by Mike@N54Tuning.com

BMS always got the best 60-130 times starting in 3rd at around 45mph. When you start in 2nd you have an extra shift that slows the time a bit. But if you are just trying to compare with others as long as you start the same way the comparison will still be valid.

Mike

FWIW When I get good traction second is always faster by about 2 tenths you just need to shift manually at 7k . If you let it get into the limiter then it will slow you down . I've done a LOT of 60-130 runs in this car > 20 .

[wrsbmw]

Originally Posted by JPMD

Can I get a link info/ordering for the VBOX?

Thanks guys

here you go.

[JPMD]

Originally Posted by wrsbmw

here you go.

Thanks which product do you use?
The performance box?

[wrsbmw]

Originally Posted by JPMD

Thanks which product do you use?
The performance box?

Yes, I don't have an iphone so I bought that one. I have to load the files to the PC and then upload them to vboxtools.com in order to share the results. I think they are best when validated by the vboxtools site anyway.

[Hoopumpers]

Originally Posted by gmd2003

FWIW When I get good traction second is always faster by about 2 tenths you just need to shift manually at 7k . If you let it get into the limiter then it will slow you down . I've done a LOT of 60-130 runs in this car > 20 .

This