[ipbln]

Originally Posted by aaron_

No gains to report. You must get a custom tune to rescale the MAF or you'll get a cel and rough irregular idle with this intake. Don't over oil it either. That can affect the MAF. Probably the most irrelevant mod I've done. But now that it's installed and working it's fine.

Hmm I'm running JB4, they say Map 5 is 'auto-tuning'. Will I be fine with that? Or would I need to for sure get a custom tune just for this intake?

[JETmn]

Originally Posted by ipbln

Hmm I'm running JB4, they say Map 5 is 'auto-tuning'. Will I be fine with that? Or would I need to for sure get a custom tune just for this intake?

JB4 can't scale the MAF. It certainly is a tune, but has limitations. You need a flash tune for that.

[juld0zer]

If you really want to address the heatsoak issue, insulate the charge pipe and the air temperature sensor just before it goes into the throttle body.

Costs less than $50 in materials if you have the stuff already and it can be done without removing it.
Heatsoak is only an issue when stationary or going slow. Feeling an airbox after a long drive is not an accurate gauge of effectiveness

[bbnks2]

Originally Posted by juld0zer

Heatsoak is only an issue when stationary or going slow. Feeling an airbox after a long drive is not an accurate gauge of effectiveness

Why do people keep saying stuff like this... Intake air temps are just as important as charged air temps post intercooler. You want to intake the coolest air possible. Any air that gets under your hood has already been super-heated by the radiator (~200f) and the inter-cooler (350+f). A sealed intake is the only way to go and insulating the charge pipes is an entirely separate preventative measure.

Have you done an HPDE before? My engine bay gets so hot (at speed) after 20minutes that the cockpit starts heating up. Endurance drivers line the firewall with gold foil to keep themselves from being boiled alive by under-hood temps.

I saw this closed intake a while ago. It look interesting, but I doubt it increases flow much over a flat panel drop-in filter.

[juld0zer]

Nah, i honestly haven't even done a track day before but i deal with a lot of city traffic in our hot summers and that alone IMO is a good test scenario for heatsoak prevention measures.

Intake air temps are important, but if you dont deal with the heatsoaked IAT sensor in the charge pipe then any efforts upstream are wasted. That sensor gradually heats up over the course of 20mins driving normally because of the hot engine bay air passing over it. Our DME doesn't consider IAT anywhere else so unless you have the tools to measure temps at different sections it will be difficult to gauge any difference except by monitoring ignition timing adjustments.

I've tried wrapping the entire stock airbox and duct as far as the turbo inlet pipe connection and the effort wasn't worth it. I even put a blanket on top of the intake manifold to block the heat from the engine and it made little difference to the IAT readings. It was ugly too. Looked like i was roasting a big chicken haha!

The M design intake is good in the sense it is physically smaller so easier to properly insulate but i dont think it will yield much improvement if IAT is your main concern.

[orteeze]

The fact that's it's constructed of CF and it has built in heat shields should help all around.

http://www.mdesignperformance.com/sh...nd-135i-e82e88

[bbnks2]

Originally Posted by juld0zer

Nah, i honestly haven't even done a track day before but i deal with a lot of city traffic in our hot summers and that alone IMO is a good test scenario for heatsoak prevention measures.

Intake air temps are important, but if you dont deal with the heatsoaked IAT sensor in the charge pipe then any efforts upstream are wasted. That sensor gradually heats up over the course of 20mins driving normally because of the hot engine bay air passing over it. Our DME doesn't consider IAT anywhere else so unless you have the tools to measure temps at different sections it will be difficult to gauge any difference except by monitoring ignition timing adjustments.

I've tried wrapping the entire stock airbox and duct as far as the turbo inlet pipe connection and the effort wasn't worth it. I even put a blanket on top of the intake manifold to block the heat from the engine and it made little difference to the IAT readings. It was ugly too. Looked like i was roasting a big chicken haha!

The M design intake is good in the sense it is physically smaller so easier to properly insulate but i dont think it will yield much improvement if IAT is your main concern.

Yeah tried heat tape on my chargepipe, tmap, and intake box. Non of it did much. Heatsoak occurs just as much through conduction as it does through convection or radiation.

A conical style filter should outflow a drop-in filter even if the rest of the intake is useless.

[9krpmrx8]

I doubt that conical filter has more surface area than a stock sized filter.

[Turbod]

Originally Posted by ipbln

Hmm I'm running JB4, they say Map 5 is 'auto-tuning'. Will I be fine with that? Or would I need to for sure get a custom tune just for this intake?

Map 5 only adjusts boost level based on timing history. If timing is generally low it will lower boost. If timing is high it will raise boost.

[EB89]

Originally Posted by Turbod

Map 5 only adjusts boost level based on timing history. If timing is generally low it will lower boost. If timing is high it will raise boost.

I thought it raised and lowered boost based on detecting knock

[bbnks2]

Originally Posted by Get Inline

Why not just install a vented hood?

Your hood consists of a low pressure area for extracting hot air (front) and a high pressure area toward the rear (cowl) for the intake of air)

So, installing a vent toward the front will extract heatsoak within the engine bay and allow the radiator to flow better and thus lowering temps.

I think this would improve performance for any engine, especially turbos that rely on cool air for peak performance. Would be especially useful if done right for track days.

Yes, absolutely agree with you on everything you said. Our engine bays get hot and could use a proper vent.

That doesn't mean you shouldn't also maintain a cold air intake (a less restrictive one) if you can. That same area of high pressure at the front of the car is used by just about every manufacturer (and race car team) out there to feed intakes and for good reason. What becomes misleading is that you can't simulate the benefits on a dyno without running the car in a wind tunnel or something. An open filter is going to show gains when its sitting stationary on a dyno with the hood popped open lol

[Turbod]

Originally Posted by EB89

I thought it raised and lowered boost based on detecting knock

It looks directly at the AVG IGN value. Before the BEF anything under 5 degrees of timing would make the AVG IGN climb. Anything higher than 5 degrees it would cause the value to lower. The lower or higher you are from 5 degrees the faster it changes the value. Knock events will raise AVG IGN so yes, but that fits within my statement of timing history.

Longer pulls usually result in higher boost because timing corrections happen more often during boost onset and less often near redline. When I ran the JB4 I rarely used map 5 due to it being inconsistent.

[Wksk]

They are having a sale. Can pick one up for less than 300 but still no data or logs showing what benefit this has. Is it only cosmetic and sound?

[BoosTonian]

Love mine, would still like to see 3rd party testing of it to see if/how much better then stock it is.

[YouAreMyWorld]

Originally Posted by BoosTonian

Love mine, would still like to see 3rd party testing of it to see if/how much better then stock it is.

How's the sound/induction noise? And videos?

[Wksk]

Mdesign says "a cold air intake will typically out flow a stock system which our system does. Furthermore, due to our true cold air intake design that blocks out heat and functions as a true cold air intake, the combined benefits result in a performance bump. Currently we do not have dyno's for the N55 though we have seen gains on all of our other platforms."

[BoosTonian]

mine is for sale! $200

no issues, just sold the cars.

[DJMOJO]

Originally Posted by BoosTonian

mine is for sale! $200

no issues, just sold the cars.

PM'ed

[ljb1]

I would NOT recommend purchasing anything from MDesign Performance. They have no customer service phone number posted online, or provided after you place your order. They have also have no customer service email - the only contact you will receive is by emailing the sales department and hoping they reply.

My experience:

-May 17, 2018: Ordered MDesign Performance Cold Air Intake for BMW 335i (E90 - Photo 1)


-July 31, 2018: Was told by email my order 'is awaiting completion fo the carbon fiber mass air sensor charge pipe to be completed' and that I will 'be receiving a USPS tracking number shortly' (if only - Photo 2)


-September 20, 2018: Was provided an email stating that my order has been shipped (extremely misleading, as the tracking number within this email was not recognized by USPS, and nothing was actually shipped to me - Photo 3)


-January 25, 2019: After posting on various MDesign social media (Instagram, Facebook) as to my experience with their company, and my disappointment, I was contacted by Instagram direct message, saying "we have sent you out a Carbon Cold Air Intake system", and I will "receive an email shortly with the tracking information" (sounds similar to what I was told on July 31 2018! Photo 4)


-February 8, 2019: Photos 5 & 6 - I don't know whether to laugh or cry at the continuous excuses and misleading information I am being provided. In the 10 years I have been a car enthusiast, this has been the longest, most painful parts buying experience I have encountered. After 8, almost 9 months since ordering my MDesign Performance Cold Air Intake, I still have not received an authentic tracking email, or my order.



I hereby caution everyone from purchasing any products from MDesign Performance. This is a highly unpolished, unprofessional company without a customer service department, that has stolen my $330 USD, and after almost 9 months, has yet to provide me with the product I paid for. I have sent 22 emails to MDesign Performance over this period, and have not received one authentic, informative, helpful response. ALthough I have left my phone number and asked to be called multiple times, no one from the company has reached out by phone to apologize, explain, or provide me with an update. DO NOT BUY FROM MDESIGN PERFORMANCE!

Lucas Baird

[Welcome to NBA Jam]

9 months is pretty bad. Do a charge back on your credit card and call it a day. If you're having this issue now, imagine trying to order another filter.

[Xdrive35i2014]

Quite a contrast from my experience with gruppe m. After I ordered they updated me at every step. Ie the time when a tech begins building my intake in Japan , when the carbon material is being made, shipping etc. But to be fair my intake costs quite a bit more but the product and the experience was definitely premium and made the exuberant price kind of worth it.