Looking for cold air intake

[tjts1]

87?  No pinging?

No pinging.

Finally painted it.

[Janne]

Do anyone have experience of this:

http://www.bmcairfilters.com/infoCDA.asp

[nomad]

Pics from farther away please.

You didn't want to paint it black? It seems like blending it in may make it look more subtle.

[tjts1]

If you scroll up to #9, it was originally black which made the car look like it had 3 headlights. I think silver is a lot better.

The factory hot air intake is 2.1" across with a total surface area of 3.46"^2 even though the throttle plates are much larger.


The tubing I'm using (right) is 3.25" across or 8.3"^2 surface area.


The screen is 5.75" across (size of a headlight) and spherical in shape for a total surface area of 52"^2. Funny how these things work out when you do the maths.


I think BMW had an interest in restricting the output of this engine in order to sell more 325s. Same story with the 4.1 diff. Its only purpose in life is to keep the 0-60 time near 10 seconds. This car was engineered as a gap filler in the market between the M40 and M20.
I think its finally time to install my 22# injectors.

[mkodama]

Finally painted it.

I think the black looked better.

Definitely props to you for going this way for the intake air.  This is a very popular method used on BMW race cars.

Do anyone have experience of this:

http://www.bmcairfilters.com/infoCDA.asp

They are very expensive, but they have been shown to give noticeable performance gains.  Prices are often upwards of $300.

[Janne]

I think the black looked better.

Definitely props to you for going this way for the intake air.  This is a very popular method used on BMW race cars.


They are very expensive, but they have been shown to give noticeable performance gains.  Prices are often upwards of $300.

I ordered that  Bmc carbon airbox.  Hope that make some performance gain with Digi-tec chip:cool: