Roar Intake

[Sparco]

Has anyone ever heard of Roar intake?..if so are they worth it? or if not can anyone give me any advice on a kind of intake..thanks alot

fred

[ayton]

gimmick...trash.you're better off buying the adapter and cone filter and fabricating some type of heatshield. www.procarparts.com has one for sale.$45

[myred318i]

"Fogg" it instead. About $10 and a little elbow grease,... performs better, sounds better.

My $.02

[Sparco]

Hey thanks for the help

[J!m]

Just a question to those who have changed the air box on the four cylinder for my head (I no longer suffer from four cylinder)

When you change to a cone intake, what do you do with the intake air temperature sensor located in the stock airbox? If it is deleted, the air mass meeter will not be able to accurately calculate the air mass, and it will run like **** (I would expect)

Just curious...

[1996 328ti]

That's odd.
When I bought my ti with the 2.8, it had a K&N cone filter. I replaced it with the stock air box and don't recall any sensor.

But how did you address the fact that your DME is looking for a flap in the exhaust and a fuel pressure sensor of which the ti does not have one. Maybe this is specific to OBD specific. I have an OBD-II.

...steven

[myred318i]

There isn't any air temp sensor in the stock airbox. It's further up stream. The box is just that... a plastic box that directs the air through a filter before it goes into the airmass control-thinga-majiggy. Personally, I'm not a fan of the whole snorkel w/ K&N filter approach.
1. I don't like the idea of an exposed filter. Especially not a K&N filter!!
2. I'm not a fan of spending $$ for a mod that I can do alternatively for little or no $$.

"Fogging" amounts to basically opening up the air intake tube into the box. With some careful routing of duct tubing, you can route cool air, get a bigger flow of air, and get the desired effect. It's not a whole lot, but it definitely works. And the real beauty is that you're not compromising your filtration system, or spending $$ for engine "jewelry"

My $.02

[J!m]

The 2.8 has the intake air temperature sensor in the underside of the intake (same as the 3.2). The plastic intake of the six does not conduct heat. This is most likely why the ti sensor is not in the intake.

The 1998 ti has the sensor in the front of the air box. There is also another sensor in the right brake cooling duct (of sport models). Perhaps information from both sensors is used to calculate intake air temperature...

Perhaps the 1995 ti has it somewhere else. I'm not sure.

It doesn't matter to me now.

[1996 328ti]

One of the sensors is for the OBC.
The other I believe is for the heated washer jets.

I do not have a sensor on my 2.8 air box.
If there was something missing I would think that I would trigger a fault code.

[BMWNate]

I have a 96 TI, and i have the sensor that is located in the airbox... i was wondering the same thing...

Does anyone know what resistance it sends to the ECU, that way you can solder on a resistor and fool the computer into thinking that the sensor is still attached and working properly.
That is if the sensor is send a resistance measurement, which it probably is.

[ayton]

95 ti's don't have the sensor in the box...mine is located in the brake duct. If you have one in the air box I would say add a heat shield and mount it in the side of the shield like the ECIS set-up. the car does run any worse for it...I know from personal experience with my friends 94 3.2 obd1 conversion cabrio.

[J!m]

As I said, the six cylinder's have the intake air sensor in the intake manifold, not in the air box. This is why you don't have one in your 3.2 air box (neither do I). This is also why it does not matter if you install a cold air intake or not on the sixes. The computer adapts to the colder air by adding more fuel, making more power.

You cannot replace the sensor with a resistor, because it sends a variable signal, which translates to intake air temperature. The size of the air mass sensor does not change, but the air mass will due to the air temperature. There is more oxygen in cold, dense air than warm air. If the computer thinks the air is hotter or colder than it actually is, it will not meter properly, and performance will be WORSE with the "cold air" intake than with the stock airbox. The oxygen sensors will eventually figure it out, and a fault code will be generated that the intake air sensor is defective. (check engine light will always be on)

These mods "bolt on" easily enough, but you really need to understand how the system works before you go "jumping out" or by-passing systems. You can do more harm than good!

[Travis]

I've got a K&N filter on my '95 ti (it was on the car when I bought it) and I wish it weren't. If anybody wants to trade even-steven for the air box I'll do it. If you are within 100 miles of Bloomington/Normal IL I'll even drive over and do it for free. The whole K&N thing makes me nervous just hanging out there. I've got one on a 4-wheeler, but it's hidden away in the stock air box.

[J!m]

I have the stock air box and ducting off my '98, but it seems to be different from the '95.

I think I will keep it, because I'm looking for a 318 with a bad motor to install my perfect 1.9 and make a nice "winter-beater" and/or sell it for a profit.