Air Filter On Turbo [Merged 10-7]

[mattspyder]

i was looking at the gallery and i noticed this one dude has the air filter hooked right up to the turbo, no piping or anything just connected it right off the turbo. can we do this with our cars, my guess is it would trip the air sensor, and cause the check engine light to come on!!

 

[2gGSX]

He most likely had a MAFT blow through setup to do that.

 

[na_turbotalon]

I'm doing it temporarily till I get some parts sorted out, but I have a translator. The pic you saw probably had it too, look again.

 

[UofACATS]

the air filter hooked right up to the turbo....can we do this with our cars

There is a lot of heat generated right there.

 

[97GS-TSpyder]

not any more than stock location. You also have the cooling air from the front comming in.

 

[UofACATS]

With the manifold and turbo directly adjacent the filter, I would theorize increased intake temps no? Also, "the cooling air from the front comming in" could possibly be negated by the radiator fans blowing heated air right on the filter. Simply, its not a good idea.

 

[97GS-TSpyder]

I still disagree, but we wont know until we try right?

 

[JoeWagon]

You won't convince some of these track cars to put an intake pipe on their open turbo because you theorize it is higher ambient temps.

As for the original inquiry, once you eliminate the need for a MAS, is there any need for a pipe?

 

[97GS-TSpyder]

Theoretically, no. You dont even have to run a filter

 

[UofACATS]

You won't convince some of these track cars to put an intake pipe on their open turbo because you theorize it is higher ambient temps.

Agreed. I see merit on a single pass, but not for daily driving.

 

[Talon10]

I saw a pic with of a 4G63 with no air can...just a K&N air filter right on the turbo. Is this bad for the G1 engine with the stock 14B? Will this confuse the ECU because there is so input from the air sensors?? or Thanks

here is the link for the pic
http://www.dsmtuners.com/gallery/showphoto.php?photo=60386&password=0&sort=1&cat=500&page=1

 

[95DsmTsiauto]

no because from the looks of it that person is running a blow thru setup and the mas is on the upper intercooler pipe. if they would of just took the mas off and put a filter on the turbo then it would be bad. Car probably wouldn't start.

 

[SlowChild3]

You can't do that with a stock mas can you?

 

[RotaryRyan]

You can't do that with a stock mas can you?

No you cannot. Circled in the picture below is the blow-through MAFT instead of the using stock airflow sensor.

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[gamingguru]

You don't really want all of the hot air comming though the radiator and intercooler if you ahve a front mount to be going into your turbo, now do you? If youy have the filter up by where it is stock then it gets fresh air comming in.

 

[RotaryRyan]

You don't really want all of the hot air comming though the radiator and intercooler if you ahve a front mount to be going into your turbo, now do you? If youy have the filter up by where it is stock then it gets fresh air comming in.

Some people say it doesnt make a difference if you have a sufficient FMIC.

 

[gamingguru]

They are wrong. Colder air in equals colder air out. I would do a sample calculation but am feeling kind of lazy right now. i was working on calculations for a intake manifold earlier tonight and that kind of wore my mind out.

 

[jaredgsx]

well the air still gets superheated in the turbo, the amount of cold air that goes in is not that much of a difference

 

[gamingguru]

I think that you might need to read up on CAI.

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That should work. I know that Ludachris mentions that as intercooler efficiency increases the importance of the CAI goes down, but it still does reduce the turbo intake temps which means that the turbo will not heat the air up as much and then the intercooler will cool it down more than it would have if there were no CAI. Colder air equals denser air equals more power. I guess if you still disagree than to each his own.

 

[Catbox_95]

Not to argue, but "cold" air coming into an air filter using a CAI may be 90 degrees, and that same air after blowing through the radiator using no CAI may be 100 degrees. The turbo heats this air up by like 500 degrees. The difference in 590 degrees total and 600 degrees total is not noticable.

CAI on a turbo car = inefficient spending

My setup works great. Check out gallery.

 

[gsxeclipse97]

That theory only works on the air temp outside. Because of the intercooler, If you think about it if the air is more dense than its going to get hotter passing through the turbo because there is more it has to compress. But when it hits the i/c and the air outside will make the biggest impact on the power.

 

[RotaryRyan]

Some people say it doesnt make a difference if you have a sufficient FMIC.

Notice the *some*. If you look under my hood, it's in the stock location.

 

[hereitcomes]

well the air still gets superheated in the turbo, the amount of cold air that goes in is not that much of a difference

Summer days in California...no
Dead winter days in Wisconsin...YES!

 

[ChiGGz]

No you cannot. Circled in the picture below is the blow-through MAFT instead of the using stock airflow sensor.

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With his MAF that far down from his TB, where the heck is his BOV (assuming blow through)

 

[MyBeatGSX]

Hot air in = hotter air out. The turbo doesn't heat the air to a fixed amount, its a multiple.

These aren't correct and a gross oversimplification but this is an idea of how it works.

100* in = 300* out.... 200* increase in temp

150* in = 400* out.... 250* increase in temp

Like I said that's not even close to accurate. But the idea is the same. The hot air in is going to equal hotter air out. And hotter air means more load on the intercooler and that creates the same effect of exaggerated temps out of the intercooler which equals way higher temps into the engine. Too many people overlook this on turbo cars because they figured its all getting heated anyway so who cares.

That's the long version of what gamingguru said.