New! Tuning Option (MHD FLASH N55) 35i E70/71

[E70'11]

Originally Posted by Riyute

Hi Justin, just a quick update! Tried it, worked like a charm! In fact, it made the drive even better!

This is good to know, I'll try that this week

[Riyute]

Originally Posted by E70'11

This is good to know, I'll try that this week

Ya man! You should try... now I am gonna balls up and go s2 with stock parts.. still a sense of worrying about the stock intercooler’s effectiveness in tropical Asia thou.

[racermp]

Originally Posted by Riyute

Ya man! You should try... now I am gonna balls up and go s2 with stock parts.. still a sense of worrying about the stock intercooler’s effectiveness in tropical Asia thou.

Hey so im in tx, 90*f + heat here. The iats on my x5 with s2 doesn't seem to go up too much over ambient. My 335i is worse. Unless u r tracking the car, it will be fine. Monitor it for a.few days. Ull mostly see increase in higher gears pushing hard. But nothing substantial

[Riyute]

Originally Posted by racermp

Hey so im in tx, 90*f + heat here. The iats on my x5 with s2 doesn't seem to go up too much over ambient. My 335i is worse. Unless u r tracking the car, it will be fine. Monitor it for a.few days. Ull mostly see increase in higher gears pushing hard. But nothing substantial

Hey man, for S2 it states DP required. Mine is still stock is yours stock?

[racermp]

Originally Posted by Riyute

Hey man, for S2 it states DP required. Mine is still stock is yours stock?

yup I'm fully stock. it's recommended ic/dp. there are a few users driving stock on higher tunes. if you are racing, then get the recommendations, however one or 2 pulls now and then won't hurt it. you can log your car and see how happy it is. my x5 is stock s2+ and e90 n55 is stock E30 (e45 mix). both are good. but monitor.if you are doing back to back pulls. iats can shoot up on higher gears and cat temps seem ok so far but maybe track days can do damage. so far I haven't noticed my cars unhappy.

[Riyute]

Originally Posted by racermp

yup I'm fully stock. it's recommended ic/dp. there are a few users driving stock on higher tunes. if you are racing, then get the recommendations, however one or 2 pulls now and then won't hurt it. you can log your car and see how happy it is. my x5 is stock s2+ and e90 n55 is stock E30 (e45 mix). both are good. but monitor.if you are doing back to back pulls. iats can shoot up on higher gears and cat temps seem ok so far but maybe track days can do damage. so far I haven't noticed my cars unhappy.

That’s a confidence booster man! I am trying to read around because I understand that having a lot of start stops also affects the temp increase and
traffic jams etc are like a big part of our daily commute. Does thisbworry you?

[racermp]

Originally Posted by Riyute

That’s a confidence booster man! I am trying to read around because I understand that having a lot of start stops also affects the temp increase and
traffic jams etc are like a big part of our daily commute. Does thisbworry you?

so yea if I'm in traffic or anything or just city driving, don't push it hard untill you get going and if u monitor, u will see iats drop quick. a/c fan also helps ic cool a bit.

[Riyute]

Originally Posted by racermp

so yea if I'm in traffic or anything or just city driving, don't push it hard untill you get going and if u monitor, u will see iats drop quick. a/c fan also helps ic cool a bit.

Tks man! It’s confidence inspiring! Will do it!

[racermp]

Originally Posted by Riyute

Tks man! It’s confidence inspiring! Will do it!

yea for for all that are on s1, daily drivability dramatically changes in s2, load and timing are higher I believe so throttle response and the whole car feels so much more eager to accelerate. feels like it lost a ton of weight. not talking about flooring it, just normal driving around is alot more welcoming.

[Riyute]

Originally Posted by Twisted Tuning

if this is on the latest updates. Try adaptation resets for "throttle", "lambda regulation", "lambda sensors". After they are reset, turn off the car and remove key completely and count to 30. Then turn ignition on and count to 40 before starting the car. If the lumpy idle doesnt improve after the next day or so after the reset. Let me know and i can try something.

Hi Justin, can I ask. Can I do this for every map changes that I do? I just switched to S1+, idle has no problems but the car’s feels “not so smooth” while on the go. So I am gonna give s2 map a try with the new found confidence from racermp and wondering should I do it as well for the reset.

[Twisted Tuning]

Originally Posted by Riyute

Hi Justin, just a quick update! Tried it, worked like a charm! In fact, it made the drive even better!

good deal, thanks for the update.

[Riyute]

Zzzzzz.. hai, I just noticed. I don’t have the S2 maps...

[E70'11]

Anyone update to the newer OTS stg 2 maps?

[ddydrt]

i will next month when i get back home...

[E70'11]

Originally Posted by ddydrt

i will next month when i get back home...

Right on! What mods do you have?

[ddydrt]

so far down pipe charge pipe afe filter and mhd stg1

[racermp]

Originally Posted by E70'11

Anyone update to the newer OTS stg 2 maps?

Hey sorry I updated. I'll try to log it tomorrow. Still stock.

[racermp]

Here's a log of latest s2. I switched back from s2+ because I feel like this map is smoother because I get less timing corrections. Maybe heat is causing it. Or a bit of e85 may help with s2+.

heres a s2 log, only drove 30 miles since full reset so still adapting

https://datazap.me/u/racermp/e70-mhd...&data=4-5-9-19

[Steadyspeed]

racermp;

So you running stock vehicle with the s2 tune and your only hitting 1420 deg egt's in 3rd? Is this the highest you've seen the egt's get? Your iat shows it was at 113 deg.

I'm probably like most on here that are interested in running the s2 tune without changing the downpipe. I don't throttle flog my X5, but I do like having the power on tap when I want it. The s1+ tune seems jumpy and not smooth when taking off. Much like a light switch.

I do occasionally pull an enclosed trailer and that's where my real concern comes in. Pulling a trailer with pretty much an tune will really increase the egt's because the vehicle is under load most of the time.

Thanks for the info. I came from diesels and as long as you kept the egt's under 1500-1600 deg, everything was fine. Things tend to melt above 1600 at longer periods of time.

This is just my 2 cents worth. I like the power of the s1+, I just would like it to come on smoother.

[racermp]

Originally Posted by Steadyspeed

racermp;

So you running stock vehicle with the s2 tune and your only hitting 1420 deg egt's in 3rd? Is this the highest you've seen the egt's get? Your iat shows it was at 113 deg.

I'm probably like most on here that are interested in running the s2 tune without changing the downpipe. I don't throttle flog my X5, but I do like having the power on tap when I want it. The s1+ tune seems jumpy and not smooth when taking off. Much like a light switch.

I do occasionally pull an enclosed trailer and that's where my real concern comes in. Pulling a trailer with pretty much an tune will really increase the egt's because the vehicle is under load most of the time.

Thanks for the info. I came from diesels and as long as you kept the egt's under 1500-1600 deg, everything was fine. Things tend to melt above 1600 at longer periods of time.

This is just my 2 cents worth. I like the power of the s1+, I just would like it to come on smoother.

How does stage 1 feel compared to stage 1+ as far as the jumpiness? Try also clean your Maf, it helps smoothen things out some. My boost solenoid was on its way out and it used to throw boost on and off. Switch like it's evened out.

I do still feel what you mean in the + maps. Maybe because of higher boost. I like the stage 2 so far. It feels a bit more refined than the stage 2+. Just for daily driving wise.

Yea I'm stock and the highest I see is 1400. I was stock E30 on my 335i n55 and stock x5 n55. Both don't go over 1400s. This log was after quite a few runs and 90*f outside temps. The x5 intercooler does better than the 335i because it's slightly bigger I see lower temps on this x5.

One big thing you will notice between stage 0, 1 and 2 is the increase in throttle response. I haven't compared the load and timing but I feel like the higher stage you go, the notes aggressive the timing and load is. So the car feels more nimble and more normal
Lol. I was sick of the bloaty feel the engine response gave on stock maps. Stage 2 feels really good for daily driving

[GWOCwinston]

Maybe I can chime in here.

2013 x5 N55

completed bench tune, mhd stage 1+ , vrsf DP. Going on 2 months now. Super smooth power delivery, better efficiency, awesome turbo sounds, no more lag, faster and better than stock

Cons. Exhaust smell at lights and traffic if wind is blowing towards you. Goes away with windows closed. Can be annoying. Pretty sure im just getting used to it now.

Considering flashing to stage 2.

[Riyute]

After 2-3 weeks of s1+ decided to revert back to s1. Car’s too jumpy.