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USA E24 with a MAF conversion


KC_Ron_Carter
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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.

arm1.JPG

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

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 rapped 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.

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.

maf2.JPG

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

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,

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Thanks bud, this looks kinda interesting!

Are you running the stock ECU with different software, or just new software on the stock ECU?

How does the controller work? Apart from lowering the power band, have you had any other side effects?

Are you sure the head (and std gasket) will be up to the turbo?

Good info by the way grin.gifbeerchug.gif

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The ECU is standard Bosch 059 with Jim Conforti chip to help out.

The MAF controller allows fuel mixture control during 4 phases, Idle, off idle, part power, full throttle.

The head I have in the basement is a Metric Mechanic prepared head with swirl porting. Note the longer and bigger exhaust studs.

turbohead.JPG

I will use a special turbo head gasket but not a cooper one, just a cutting ring.

I will also consider Nitrous water injection into the airstream after the turbo to cool and provide a pop.

Here is a link to a older, 500k M30 M102 motor making 500 HP on gasoline.

http://bimmer.roadfly.org/bmw/forums/forcedinduction/forum.php?postid=1646379&page=2

Later,

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