[Fundguy1]

I'm coming close to the build date. It was on hold for a year and now I'm ready to proceed. Since it went on hold some new things have come out. Outlets, fuel rails, etc. The one I don't know enough about is MHD.

Originally I had planned a JB4 G5 stacked with a Cobb v3 and a tune by Dzenno of PTF. I have all these in hand including remote dyno tuning.

The build is to long to list but here's the basics and link to my build thread. I update the first post to keep if current.
Vargas stage2+
Vrsf charge, downpipe, 7"fmic, inlets
Motiv fuel rail and 1000 hp clutch
29psi boost on e85
Etc etc etc.
So basically maxed out with everything, what benefits or losses would an MHD app tune give me?
I don't plan on continuously changing tune. It's a fire and forget for me.
I don't care about bells and whistles
I don't want displays anywhere.
Not a fan of apps, smartphones, etc. I'm old school. This is why I'm clueless about it. I use my phone because I have to for work or I wouldn't even own one.

If it will add performance or durability, I'd be interested. Otherwise, I really don't care.
Thanks for your help.

[idratherbesurfing]

Jb4 cobb stack has not been going well for people... So you would want to stack MHD AND JB4. If you really need a stack..

Mhd can do all you need alone and its cheaper. Ive had each one and im currently using mhd and i wont go back to the others ever.

Just like any other car.. you do not just tune it and forget about it you need to take logs every once in awhile and make sure the car is running properly sometimes tunes need slight adjustments and other times you will see early symptoms of parts malfunctioning through your tune.



Sidenote...mhd is so easy to use, dont get all nervous about it. Its very plain and simple.

[stanlalee]

Dzenno will have a few more tables to play with with MHD but in your case I would really just consult him. Why take our advice when the guy doing the tuning is familiar with all options. At the end of the day there would be no difference. Boost by great can be done with jb4 which you have decided to control boost anyway. I don't think anything else is significant enough to matter but that's just my opinion.

[idratherbesurfing]

Originally Posted by stanlalee

Dzenno will have a few more tables to play with with MHD but in your case I would really just consult him. Why take our advice when the guy doing the tuning is familiar with all options. At the end of the day there would be no difference. Boost by great can be done with jb4 which you have decided to control boost anyway. I don't think anything else is significant enough to matter but that's just my opinion.

I dont like using jb4 for boost control...personal preference. Not that it doesnt work, just rather not.

[csu87]

with what you are planning, jb4 stacked with MHD is going to be your best option vs flash only. Can use a Cobb if you want, but wont be able to take advantage of the new maps and logic, as well as any new progress that comes.

JB4 can implement almost anything into it now at this point. Terry is really changing the game with it right now.

[Fundguy1]

I can't return the Cobb. I've had it too long. Would it make sense to do all 3? Any benefits? Just sell cobb? Any downsides to mhd? Keeping the jb4. Not intimidated by it. It's just irritating. I prefer windows 98 personally. I dont like changing and relearningthings every few years. If the car had a coyote or 350 small block with twin 4 barrel carbs I'd be tickled pink.

[idratherbesurfing]

Originally Posted by Fundguy1

I can't return the Cobb. I've had it too long. Would it make sense to do all 3? Any benefits? Just sell cobb? Any downsides to mhd? Keeping the jb4. Not intimidated by it. It's just irritating. I prefer windows 98 personally. I dont like changing and relearningthings every few years. If the car had a coyote or 350 small block with twin 4 barrel carbs I'd be tickled pink.

Hahahaha we got a murican muscle guy on our hands....nothing sounds like a worked small block with that crazy big cam idle

And yeah try to sell it

[Fundguy1]

Originally Posted by idratherbesurfing

Hahahaha we got a murican muscle guy on our hands....nothing sounds like a worked small block with that crazy big cam idle

And yeah try to sell it

Jup. Burble burble. My favorite sound was the '64GTO with 389 tripower I restored. Lub, lub, lub. Mmmmm

[Fundguy1]

Where do you get mhd? Price, etc. What do you need to get it working? I think it's a phone app. Once the phone flashes the cpu, do I need to keep phone hooked up or that's it? All new to me.

[Fundguy1]

Gonna hit up dzenno first before making a move. How much can I sell a new in box cobb V3 for these days?

[idratherbesurfing]

Originally Posted by Fundguy1

Where do you get mhd? Price, etc. What do you need to get it working? I think it's a phone app. Once the phone flashes the cpu, do I need to keep phone hooked up or that's it? All new to me.

Its simple. Got to best buy and buy a cheap Andriod based tablet...cheapest is $50

On the tablet there is an App store. You purchase MHD software on the tablet.

The tablet or phone does NOT need to be plugged in constantly..only when flashing a map or data logging.


Your tuner can really explain all of it to you since he has experience with it. Best bet is to get him on the phone and settle it.

[Fundguy1]

OK thx. I have a galaxy S5. Phone. Good enough?

[idratherbesurfing]

Originally Posted by Fundguy1

OK thx. I have a galaxy S5. Phone. Good enough?

Yes sir...and it wouldnt hurt if you were able to upload some videos of your cars

[csu87]

should work. cobbs are going for a good price on ebay. on here, around 400

or use the cobb. PTF will be able to get you a good tune with the cobb, and if you arent wanting to mess with it much, than that will probably be the easiest bet since it is more plug and play than the MHD.

[f3adm]

I'd go with mhd backend flash stacked with jb4. I'm using mhd through my samsung note 4 and have a jb4.

With mhd you can back up your original ecu, change maps, read codes, reset adaptations and log all from your phone.

[Fundguy1]

What hardware is required for mhd?

[f3adm]

Phone, usb otg cable (any one will do) and the impact kcan+dcan obd to usb cable used for diagnostics

[f3adm]

http://www.e90post.com/forums/showthread.php?t=1096242

[brewnami]

I think Cobb is being pushed out of relevance on the N54 platform at this point. The price is double a JB4 and still hundreds more than both JB4 and MHD combined. MHD is more robust than Cobb. JB4 is still evolving with all of the new modding options and you can load free back end flashes through MHD designed to run with JB4, stack MHD flash and use JB4 to control boost, or just run custom flash maps with no JB4.

[f3adm]

Originally Posted by brewnami

I think Cobb is being pushed out of relevance on the N54 platform at this point. The price is double a JB4 and still hundreds more than both JB4 and MHD combined. MHD is more robust than Cobb. JB4 is still evolving with all of the new modding options and you can load free back end flashes through MHD designed to run with JB4, stack MHD flash and use JB4 to control boost, or just run custom flash maps with no JB4.

+1

[JasW]

I'd hurry and sell the Cobb asap. The prices are slowly spiraling downward as more and more people realize it doesn't offer anything more than MHD, and in going forward offers less. Meaning if you already have an Android phone, the actual intrinsic value of a Cobb at this point should be less than the cost of the MHD flasher and monitor modules with an OTS map, plus the DCAN and OTG cables, which is ~$265 total.

[msjt]

JB4 stacked with the MHD backend flash is great. Safer than just the JB4 alone, and you can take advantage of all the features of the JB4. (gauge hijacking, map switching, etc.)