Ah, maybe cuz both of the best tuners in the EVO world say you need a tune with an intake, and I'm gonna listen to them before I listen to some people on the internet that probably don't even know half of what they (the tuners) know.

Oh, yeah, I bet that Mitsu had a way better R&D dept. them any company that makes intakes.

 

Yes, Please tell us what tables in the ECU need to be updated to fix/adjust for the air comming in from different directions.

This is probably some BS answer that people are just regeritating. By the time the air has gotten to your MAF, the velocity and direction/air current are probably already strightened out. The only way to compensate for this would be a rediisgn in the physical hardware not something in the ECU or what ever.

The only way I can see that this is possible is if the area between the MAF honey combs and end of the air filter is too short. But By the time air is traveling through the honey combs the air current is strigneted out by the honey combs.

 

But it does.

A MAF requires laminar flow for accurate reading. The factory airbox is designed to offer good flow characteristics while minimizing noise and turbulence.

When one bolts a conical filter straight to a MAF, this tends to disrupt the quality of airflow. Instead of a steady stream of air passing through the MAF, there are erratic pockets of high and low pressure, just like one experiences when flying a plane through a storm. This makes the MAF signal erratic, which compromises its accuracy, and therefore the accuracy of metering fuel at WOT, where the ECU looks *only* to the MAF for fuel metering info.

I've observed this phenomenon over the past 12 years in which I've been tuning MAF equipped cars. Some intake kits will foul the airflow more than others, depending on the type and shape of filter, distance of the filter from the MAF, and even location/orientation inside the engine bay. This being the case, it's *always* a good idea to include a dyno tuning session following installation of an intake kit, and install the kit with other mods that also require dyno tuning.

And be advised that intake kits that are advertised to add XX hp to a stock EVO may be able to do so - purely because they cause the MAF to misinterpret the signal, resulting in a leaner mixture (and factory cars run rich). Obviously, an EVO that is already tuned may experience no gain, or even a loss in power without further tuning.

 

Yes I am aware of this and that is why the honeycombs are placed in front of the vortex generator, but I guess the Evo MAF is way different than 1g and 2g MAFs. The DSM MAFs never had problems with changing intakes and even didn't even have problems with taking some of the honeycombs out.

This is why I asked for a pic of the EVO MAF earlier. On a 2g stock intake box, the flow to the honeycombs is not perfect either. There are spots on the top of the airbox where turbulence would occur especially at higher intake speeds. Again, I guess the MAFs are different. When I get an Evo I will put an intake on anyways since trinydex doesn't seem to have a problem. Anyways, thanks Ted B for your response. I hate all this parrot talk that newbs spout out.

 

LOL

The "kid" in your username is very fitting. I've been tuning DSMs with loggers, safcs, widebands, dsmlink, etc for years. The Evo is not much different. Go listen to whatever your tuner gods tell you so they can make more money out of you. BTW if some of the best tuners that you mentioned include Buscher, he never recommened a tune for intakes on DSMs since most DSMers were DIY type people. Because a lot of Evo owners are new to 4g63s, it seems like most companies are just trying to cash in and say "hey, got new mods, get a flash." Back then, it was all about getting new mods and logging the results.

 

Hey F&ck you,
I'm not a f$ckin kid. I didn't call you a newbie because its next to your SN. Don't assume.

I've been into various imports for almost a decade and the only benifit I've ever seen from a aftermarket intake is noise.

I don't have anyone tune my car beside myself, so I don't see how these supposed "tuning gods" are making more money out of me??????

 

if your intake is the culprit of some maf weirdness then you have to use your piggyback or stand alone to do a few things.

one way to sand bag it is to throw fuel at it and pray, if that doesn't work then i believe i read somewhere and i forgot where, that you can add (please someone confirm this) timing advance and you might get a cleaner idle. of course if you have injectors then the proper scaling may help for a healthier idle.

another way to sand bag it is to bump yer idle screw up...

i prefer not to sand bag anything, so talk to ask people like ted b and malibu jack how to improve your closed loop idle. they both have experience.

now check this out... this thread obviously went to **** but hte original point was don't **** with your intake, not whether or not it needs tuning. the tuning issue is a car to car basis. undoubtedly everyone should be tuned somewhere sometime down the line of doing ANY modding. but what i'm tryinna to get people to understand is that it's not as if you're gonna LOSE POWER unless you put on a BAD MOD. intake could be interpretted as a bad mod, it all depends on your combination (with or without tune or luck)

 

the desperately stupid thing about all this is that no one ended up learning **** and all the people that complained about this thread making their head hurt have no idea how much my head hurts seein' this kind of ridiculousness.

i think i need a vacation from this board.

 

It's been dyno proven for hundreds of applications that upgrading the stock airbox frees up hp (some more than others ofcourse). If you like the stock airbox that's cool, it's not horrible but aftermarket intakes are usually a nice cheap mod.

The "tuning gods are making more money out of me" quote was a direct response to your previous post of "cuz both of the best tuners in the EVO world say you need a tune with an intake, and I'm gonna listen to them."

Anyways, my first post on this thread was asking for specifics of the supposed MAF problem and both of your responses did not give any specifics. I can see where Evo 9s might need a tune after an intake since the ECU is much more complex, but Evo 8s are pretty damn similar to DSMs which never needed a tune for a filter. Well, I'm done with this thread. Take it easy guys, I'm going on vacation like triny

 

There is dynos charts that say grounding kits make HP, but that doesn't mean they really do. It very easy to make a dyno say whatever you want it to, i.e. That intake and grounding kits make power when they don't.

And if the dyno results are not messed with and an aftermarket intake makes power, it very easy to see why. The stock air box needs the car to be on the road, in motion for it to fuction properly and that doesn't happen on a dyno. Also on a dyno the hood is open with fans blowing on the intake, which helps the aftermarket intake but not the stock intake. Now I don't know many people that drive with their hood open.

Oh yeah, one last thing. Comptech builds race cars and have you every seen the Comptech "Ice Box". It's basilly a better made stock style airbox, that , IMHO, was the best aftermarket intake I've used.

 

ok. A intake usually does make power over a stock airbox, but only because it
usually leans it out = more power. But once you get a tune, the power will probably be about the same. What would you want?

1. xxxx brand intake which gives you 10+whp but leans your afrs to mid 12s
2. stock intake without tune, little less power then your xxxx brand intake
3. stock intake with tune, probably same power as xxxx brand intake and safe afrs?

The ***** in your court.

 

lmao!!

 

didn't i already explain why an intake doesn't see that much increase in horsepower? turbocharger in car doing the sucking?? anyone remember that part of what they didn't read while posting up lame pictures like the one quoted above?

y'all think yer hella clever and you can't even formulate the arguements.

 

yeah, i fixed it. car was going SUUUPER rich before it died(9:1), couldn't tune it out. SO, i pulled one of the springs from teh BOV and voila, perfect idle....and still holds boost.

 

I dont see why you would need a tune with an intake, the MAF sensor has a screen infront of it to smooth out the air flow, before it is metered. Should not have any problems with an intake.