My e24 tow mule with a MAF

[KC Ron Carter]

Here is a MAF from Split Second

The controller is in the glove box, and is indexed to allow me to play with settings and get back to smooth running.

http://members.roadfly.com/kcroncarter/arm1.JPG

Here is the Ford 65mm MAF and it is made in JAPAN.

http://members.roadfly.com/kcroncarter/maf1.JPG

If this engine was shiny enough to reflect,
you would see me smiling while taking the pictures.
Cause I really like the output of the MAF.

Six hours, DIY, including the indicator and can switch back to AFM in 2 minutes, Two screw clamps on MAF, two quick electrical connectors and the OE connector is tie wrapped back out of the way.

OE is
3430cc M30
Motronic
DME II
92x86, 8.0:1
185bhp/5400rpm
214lb.ft/4000rpm


I own a dyno so here is the output at the wheels.
http://members.roadfly.org/kcroncarter/towmule.jpg

HP loss in transmission and differential 25%
So 222 HP at shaft is the result.


I am using the J C. chip also, a 3.71 ratio, with 265 Getrag.

The sweet spot of the m30 is now at 2200rpm where it was at 2800rpm.

That is the point where the rumble of the exhaust resonates in frequency with the intake. On the unmodified it is only seen on the cold mornings when the fuel system adds a little more fuel and the cold air is giving it's all.

I really like it.


http://members.roadfly.com/kcroncarter/maf2.JPG

My Cartech RRFR installed and test in advance of the M102 12 psi turbo.

http://members.roadfly.com/kcroncarter/2027.JPG

I hope to sneak up on a few Stangs and Meros on the Dyno.

My source:
http://www.bmpd.com/bmw/parts/catalog/engine_32.shtml

Later,

[fastbmw]

wow! That's impressive, do you have a dyno reading before the maf?

[VtwinVince]

Keep up the good work.

[motoyen]

I've got to get MAF for my car. Was is difficult to get tuned?

[Mike 91 318ic]

how does the MAF add power over the AFM? I don't understand these things at all.


ttyl
M

[fastbmw]

the AFM is very restrictive to the intake airflow because it measure air intake by using a hinged flap to gauge the incoming air (the faster the air intake the more the flap is opened, but it is never completely out of the way). A MAF uses a heated wire to gauge airflow (air flow past the wire changes the resistance of the wire thus detereming how much air is going into the engine) thus has less in the way of the incoming air. The more air you can get into the engine the more power you can make.

[Mike 91 318ic]

So you're not really adding any power just faster throttle response is that right?

M

[Spaz]

I've got to get MAF for my car. Was is difficult to get tuned?

i don't think you need a maf....you need speed density...dtm style :)