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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > How safe is MHD Stg1+FMIC for DD



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      10-02-2015, 10:23 PM   #1
007_e350
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How safe is MHD Stg1+FMIC for DD

I've been on it for 10k miles or so, last night I got cyl 1 misfire & Injector plausability - I also have alpina B3 trans flash
Anyone using map for daily driving ?
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      10-03-2015, 07:49 AM   #2
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Its a safe tune. Nothing like some of the aggressive custom Wedge tunes your probably referencing for concerns. You have OFT in your signature. If you ran that stage 1 on that has more boost and timing.
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      10-03-2015, 09:13 AM   #3
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Quote:
Originally Posted by stanlalee View Post
Its a safe tune. Nothing like some of the aggressive custom Wedge tunes your probably referencing for concerns. You have OFT in your signature. If you ran that stage 1 on that has more boost and timing.
OFT was a mess, but anyway this one feels stronger .. do u think its worth upgrading to v5, I heard boost kicks in way down in the rpm, I have alpina so I'm shifting at 1300 sometimes lol
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      10-03-2015, 02:54 PM   #4
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Just curious as I'm looking to start running it- what're the boost levels on stage 1? I'm at 108k and not looking to tax the turbos too much.
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      10-03-2015, 04:56 PM   #5
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I don't think are at risk of breaking anything with that map. If it's the one that targets 15PSI peak and tapers down to 11 then you can relax.
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      10-03-2015, 05:03 PM   #6
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Thanks Car.

Fresh off a belt in the crankcase and the following VCG, oil pan gasket, OFHG, and new injectors for bank 1, I've learned that relax doesn't work well for this car. Lol
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      10-03-2015, 06:11 PM   #7
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Quote:
Originally Posted by theweebabySeamus View Post
Thanks Car.

Fresh off a belt in the crankcase and the following VCG, oil pan gasket, OFHG, and new injectors for bank 1, I've learned that relax doesn't work well for this car. Lol
Things break on the N54 regardless of the map. Part of the experience
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      10-03-2015, 06:34 PM   #8
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How's this compare to jb4 map 5?

I am interested in buying the tablet and this flash but only to pass inspection lol. Not really a fan of aggressive tunes or pushing car max never even ran e85 or meth.

I am FBO btw
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      10-16-2015, 03:01 PM   #9
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Quote:
Originally Posted by montegokid94 View Post
How's this compare to jb4 map 5?

I am interested in buying the tablet and this flash but only to pass inspection lol. Not really a fan of aggressive tunes or pushing car max never even ran e85 or meth.

I am FBO btw
I think its stronger up top ... very smooth and consistent
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      10-16-2015, 03:21 PM   #10
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Quote:
Originally Posted by CarAbuser View Post
I don't think are at risk of breaking anything with that map. If it's the one that targets 15PSI peak and tapers down to 11 then you can relax.
The response I got from MHD is that the stage 1 plus maps for both octanes is 17PSI, and 14 PSI for non-fmic maps. Personally, I'd stick to the 14 psi for DD with stock downpipes
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      10-16-2015, 04:00 PM   #11
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I hear OTS maps are very conservative, similar to Cobb's OTS maps.
If you are worried about it, all you have to do is post a log so we can check it out
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      10-16-2015, 06:15 PM   #12
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I run a custom Wedge tune on an FBO car that's my daily. But I don't I beat the hell out of my car daily.
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      10-16-2015, 09:04 PM   #13
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Quote:
Originally Posted by parksjm7 View Post
The response I got from MHD is that the stage 1 plus maps for both octanes is 17PSI, and 14 PSI for non-fmic maps. Personally, I'd stick to the 14 psi for DD with stock downpipes
Not sure why people assume the cats on this car are not high flow considering we have seen over 425 whp on DMACC's car with stock DPs back in the day when Shiv started playing with E85.

I ran over 600 whp with my stock cat back exhaust @ 28 psi. I highly doubt a 17 psi map would have an issue with stock down pipes. But making assumptions is what most people do with regard to this platform.
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      10-16-2015, 10:54 PM   #14
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Quote:
Originally Posted by WedgePerformance
Quote:
Originally Posted by parksjm7 View Post
The response I got from MHD is that the stage 1 plus maps for both octanes is 17PSI, and 14 PSI for non-fmic maps. Personally, I'd stick to the 14 psi for DD with stock downpipes
Not sure why people assume the cats on this car are not high flow considering we have seen over 425 whp on DMACC's car with stock DPs back in the day when Shiv started playing with E85.

I ran over 600 whp with my stock cat back exhaust @ 28 psi. I highly doubt a 17 psi map would have an issue with stock down pipes. But making assumptions is what most people do with regard to this platform.
That's why we need your input - would you say running at 17 shortens the life of stock turbos versus 14? I understand your point that the stock system can handle some abuse, my concern is, for how long?
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      10-16-2015, 11:27 PM   #15
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I've been on MHD stage 1+fmic for about 2 months/3k miles with no issues so far. I also have the alpina flash.
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      10-16-2015, 11:32 PM   #16
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Quote:
Originally Posted by JasW
I run a custom Wedge tune on an FBO car that's my daily. But I don't I beat the hell out of my car daily.
Same but I don't think mine is aggressive
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      10-17-2015, 12:10 AM   #17
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Quote:
Originally Posted by parksjm7 View Post
That's why we need your input - would you say running at 17 shortens the life of stock turbos versus 14? I understand your point that the stock system can handle some abuse, my concern is, for how long?
Anytime you increase power you put more stress on parts. Very important that you use a quality oil and change it more frequently. I ran my stock turbos at 20 psi for over two years before I upgraded them at 100k miles. Car has over 100k miles and makes over 600 whp now. Just because it has 100k doesn't mean it's glass.
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      10-17-2015, 12:43 PM   #18
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Quote:
Originally Posted by WedgePerformance View Post
Not sure why people assume the cats on this car are not high flow considering we have seen over 425 whp on DMACC's car with stock DPs back in the day when Shiv started playing with E85.

I ran over 600 whp with my stock cat back exhaust @ 28 psi. I highly doubt a 17 psi map would have an issue with stock down pipes. But making assumptions is what most people do with regard to this platform.
So do stage 2 maps not actually require exhaust modifications?
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      10-17-2015, 08:25 PM   #19
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FYI
i've been running 19 psi on my stock turbo's with FBO since 2008.
Not a single issue, and i changed my turbos a few months ago because i hatted the rattle.
170xxxKM + on my car. Wedge is currently tuning and I am still running 19 PSI daily. And love it.
These turbos will hold 18-19 psi no problem for years in my experience.
its all about logging and tuning.
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      10-17-2015, 11:27 PM   #20
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Quote:
Originally Posted by 007_e350 View Post
OFT was a mess, but anyway this one feels stronger .. do u think its worth upgrading to v5, I heard boost kicks in way down in the rpm, I have alpina so I'm shifting at 1300 sometimes lol
I'm still on open flash table, map 1. I've had it for a while and to me it feels smooth and consistent. In your experience, how does MHD feel compare to OFT?
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      10-18-2015, 01:20 AM   #21
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Quote:
Originally Posted by Yournamehere90 View Post
So do stage 2 maps not actually require exhaust modifications?
I honestly don't think you would see much change in power if you were to run the stage 2 with stock DPs vs Catless. If anyone is interested in testing this PM me. I would even consider splitting the cost of the dyno for a good write-up..

Last edited by WedgePerformance; 10-20-2015 at 01:32 PM..
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      10-18-2015, 08:45 AM   #22
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ive been running the jb4/backend flash,e60 on 18-19# for 3 years. been running the mhd e40 map for a few months now on e45-e50. this is my daily driver and i "drive" it everyday. She typically sees wot everyday! zero issues so far.

my turbos were replaced at 60k under warranty by the previous owner. i now have 115000 miles on the car.
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