[Bimmer_Bro]

Originally Posted by darkrom

Still getting constant surging on v10 and even v9 now…

I'm at the point where I'd buy a custom tune but I'm starting to wonder if it's an issue with the MHD app not the tunes. Id hate to pay for a custom tune to have the same issues. I noticed one of the mhd+ apps had "throttle fixes" as a description, but at this point I can't even drive my car on mhd the partial throttle and throttle release surges are so bad.

Do you use the m1 throttle option. I believe I have mine at 70%.
Btw you should try V7. I found v9 way to Inconsistent and I don't like the linear boost curve. V7 really seems like the sweet spot in my opinion....

[darkrom]

Originally Posted by Bimmer_Bro

Do you use the m1 throttle option. I believe I have mine at 70%.
Btw you should try V7. I found v9 way to Inconsistent and I don't like the linear boost curve. V7 really seems like the sweet spot in my opinion....

No I hated the m throttle it was really jerky as well, I'm a 6mt I'm not sure if that matters but most people who have the m throttle I noticed were auto if they liked it.

[Bimmer_Bro]

Originally Posted by darkrom

No I hated the m throttle it was really jerky as well, I'm a 6mt I'm not sure if that matters but most people who have the m throttle I noticed were auto if they liked it.

Very true, I am auto. If you haven't already, give v7 a try for shits and gigs.

[darkrom]

Originally Posted by Bimmer_Bro

Very true, I am auto. If you haven't already, give v7 a try for shits and gigs.

I will it just bugs me I ran v9 for a long time no problems, I'm not sure what changed but I always do the app updates.

[Bimmer_Bro]

Originally Posted by darkrom

I will it just bugs me I ran v9 for a long time no problems, I'm not sure what changed but I always do the app updates.

Interesting. You might want to do a log to make sure the fuel pumps look ok. You can also reset the adaptations in mhd. Iv never done this but alot of users have. If it also does it on v7 then it must be something hardware related??

[tej98]

Originally Posted by darkrom

Still getting constant surging on v10 and even v9 now…

I'm at the point where I'd buy a custom tune but I'm starting to wonder if it's an issue with the MHD app not the tunes. Id hate to pay for a custom tune to have the same issues. I noticed one of the mhd+ apps had "throttle fixes" as a description, but at this point I can't even drive my car on mhd the partial throttle and throttle release surges are so bad.

Yeah I have something similar on MHD 3.05. Are you IJE0S? MHD is working on a fix for this I believe, they are aware of the issue

[darkrom]

Originally Posted by tej98

Yeah I have something similar on MHD 3.05. Are you IJE0S? MHD is working on a fix for this I believe, they are aware of the issue

I am, that makes me feel better. They sent me a second test app to try. The issue comes back after a few days so it's hard to say right away. They have been very responsive though.

[tej98]

Originally Posted by darkrom

I am, that makes me feel better. They sent me a second test app to try. The issue comes back after a few days so it's hard to say right away. They have been very responsive though.

Yeah, I'm on a beta revision as well. Jerkiness is gone after putting a couple hundred miles on it, but throttle response is definitely not as good as it was with 3.05. I feel like a happy medium between the two is there, it just needs a ton of testing before mass-rollout. I am also using full 1M mapping with linear throttle, and it doesn't feel as responsive as the actual 1M firmware with linear throttle imo.

[LastGray]

Originally Posted by darkrom

I am, that makes me feel better. They sent me a second test app to try. The issue comes back after a few days so it's hard to say right away. They have been very responsive though.

Any luck so far with the new map? I had this problem when I moved from v10 to v10+. The post lift-off surging was so bad the car felt bucked like crazy if I left it in gear (6MT here). It even shows up in the logs whereby after the accel pedal is quickly lifted after stepping on it hard, the throttle reopens by itself. Even the blow off valve can be heard venting a second time post pedal lift-off.

[cruizinmax]

Originally Posted by LastGray

Any luck so far with the new map? I had this problem when I moved from v10 to v10+. The post lift-off surging was so bad the car felt bucked like crazy if I left it in gear (6MT here). It even shows up in the logs whereby after the accel pedal is quickly lifted after stepping on it hard, the throttle reopens by itself. Even the blow off valve can be heard venting a second time post pedal lift-off.

It was fixed a few updates back. You'll need to reflash after updating your MHD app.

[vadonchez]

Hi guys
V10 MHD map are available for one year now.
For those who take Time to try v7 and v10 MHD Map wich one do you prefer ?
I didnt try v7 because i'm running stage 1+ e50 mix and v7 doesn't propose ethanol mix Map but ethanol prices here in France are growing UP quickly so that's not a bargain anymore now....
Idee is to go back to 93 map so v7 will become available.
I'm pretty happy with v10 .i found it better than v9 wich i tried too.
I often heard that v7 IS the best one but is it still true after one year with v10?

Thanks

[Saif2018]

Originally Posted by vadonchez

Hi guys
V10 MHD map are available for one year now.
For those who take Time to try v7 and v10 MHD Map wich one do you prefer ?
I didnt try v7 because i'm running stage 1+ e50 mix and v7 doesn't propose ethanol mix Map but ethanol prices here in France are growing UP quickly so that's not a bargain anymore now....
Idee is to go back to 93 map so v7 will become available.
I'm pretty happy with v10 .i found it better than v9 wich i tried too.
I often heard that v7 IS the best one but is it still true after one year with v10?

Thanks

V7 is good but v10 feels more aggressive building boost and maintains it longer. You can do logs and compare.

[LastGray]

Between v7 and v10, YMMV and it’s up to the individual. V7 felt more aggressive but I used to get 30FF codes. v10 has a smoother (but still meaty) power delivery, plus the codes never came back.

[roadkillrob]

I like V10 now but first upgrade I got a limp and a bunch of misfires and went back to V7 and no issues, ended needing to replace my coils to get V10 to run reliably but I like it better with new coils in the car and have been running it almost a year now.

[TyroneShoelaces]

I have never run anything other than V10 and wonder if V7 would be better? My car has relocated inlets and upgraded turbos (not 17ts size but more like 15ts). I know a custom tune is the right call but too many other things to do right now. I find the car to surge and low speed driveability isn't as good as it could be. Boost is not real linear. Heck I don't even have logs but been driving it this way for almost a year. SMH

[Saif2018]

Originally Posted by TyroneShoelaces

I have never run anything other than V10 and wonder if V7 would be better? My car has relocated inlets and upgraded turbos (not 17ts size but more like 15ts). I know a custom tune is the right call but too many other things to do right now. I find the car to surge and low speed driveability isn't as good as it could be. Boost is not real linear. Heck I don't even have logs but been driving it this way for almost a year. SMH

None of the OTS tunes will do much good, they will all run pretty bad. With 15T and Inlets you definitely need a custom tune.

[R3dLeader]

Originally Posted by TyroneShoelaces

I have never run anything other than V10 and wonder if V7 would be better? My car has relocated inlets and upgraded turbos (not 17ts size but more like 15ts). I know a custom tune is the right call but too many other things to do right now. I find the car to surge and low speed driveability isn't as good as it could be. Boost is not real linear. Heck I don't even have logs but been driving it this way for almost a year. SMH

You actually think you can comment on V10 map's "smoothness" and "driveabiliity" when you're running bigger turbos? These maps were not designed for bigger than stock turbos. Lol.

[TyroneShoelaces]

Originally Posted by R3dLeader

You actually think you can comment on V10 map's "smoothness" and "driveabiliity" when you're running bigger turbos? These maps were not designed for bigger than stock turbos. Lol.

I wasn't commenting on 10. Was wondering out loud if 7 would run better on my setup instead knowing full well I should have a custom tune.

[Saif2018]

Originally Posted by TyroneShoelaces

I wasn't commenting on 10. Was wondering out loud if 7 would run better on my setup instead knowing full well I should have a custom tune.

All of the OTS maps will run pretty bad on your setup, you only have to log to see the problems, including multiple throttle closures, boost tapering off too early, WGDC issues etc, the OTS maps just aren't designed for 15T turbos with Inlets,

Save up and get a custom tune, you can get one for around ~ $300 last time I checked, well worth it.

[TyroneShoelaces]

Originally Posted by Saif2018

All of the OTS maps will run pretty bad on your setup, you only have to log to see the problems, including multiple throttle closures, boost tapering off too early, WGDC issues etc, the OTS maps just aren't designed for 15T turbos with Inlets,

Save up and get a custom tune, you can get one for around ~ $300 last time I checked, well worth it.

The car doesn't run bad, I shouldn't have said throttle closures I guess. In low speed roads if it starts pulling into boost and then you back off it can get a little choppy getting back on the throttle and smoothed out, especially when the engine isn't fully warm. Honestly the car is fine, just defintely more potential and doesn't drive as smooth as a buddies car on stock turbos with an auto. I'm guessing there's another 50 hp left on the table on 93 pump gas? It's not an issue of cost, just time and another thing to deal with. Currently have an E39 540 manual wagon drift car that is no start that I need to source a flywheel for, get my boat prepped for sale, get a set of tires on the E91 and the M3 wheels refinished, swap the exhaust on the N54 wagon etc...and that's just the car stuff let alone all the house projects. And I work from home so I barely drive it. I may go get a log and then switch to map 7 and see if it is better.

[Saif2018]

Originally Posted by TyroneShoelaces

The car doesn't run bad, I shouldn't have said throttle closures I guess. In low speed roads if it starts pulling into boost and then you back off it can get a little choppy getting back on the throttle and smoothed out, especially when the engine isn't fully warm. Honestly the car is fine, just defintely more potential and doesn't drive as smooth as a buddies car on stock turbos with an auto. I'm guessing there's another 50 hp left on the table on 93 pump gas? It's not an issue of cost, just time and another thing to deal with. Currently have an E39 540 manual wagon drift car that is no start that I need to source a flywheel for, get my boat prepped for sale, get a set of tires on the E91 and the M3 wheels refinished, swap the exhaust on the N54 wagon etc...and that's just the car stuff let alone all the house projects. And I work from home so I barely drive it. I may go get a log and then switch to map 7 and see if it is better.

What I mean by running bad is your loosing performance and consistency, you can of course run OTS maps with hybrid turbos.

It's not just outright power, If you were on a custom tune, you would get hardly any throttle closures, boost target, WGDC, and everything else would be set correctly and pulling much harder for your turbos throughout the rev range. It should definitely drive better, harder faster and more consistently than stock turbos, assuming the car hasn't got any other issues. Most likely a result of running OTS maps on your turbos.

Takes barely any time to flash a custom map and logging is something you should be doing anyway.

[vadonchez]

Originally Posted by tej98

Here are a couple logs of v10 Stage 2 93oct and a VirtualDyno comparison of v9 vs. v10 with the same car and mods ('09 6MT). Keep in mind the v10 log has about 20F colder IATs, and also remember the VirtualDyno readout is a rough comparison at best but I think shows some useful data for comparison purposes.

I would recommend just trying it yourself and seeing how it works out. I don't have any severe timing drops as others have mentioned at all.

https://datazap.me/u/tej98/mhd-v10-s...=0&data=3-4-21
https://datazap.me/u/tej98/mhd-v10-s...og=0&data=3-21

Hi guys

By looking at the stage 2 V10 logs post by tej98 it seem's that the stage 2 target less boost than stage 1+.
Seem's that stage 2 target around 15psi up to 5300rpm then taper to 13 at 6000rpm when stage 1+ target 16.5 psi and taper to 14.5/15 at 6000 rpm.

So my question is, why do i need DP with stage 2 and not stage 1+?
Could I run stage 2 on my car whithout DP (i have wagner evo1 FMIC)?

thanks