anyone put a m97 or mA1 in a 986?

[autodoctor911]

Is it not possible to get by without the functions that the dme needs to talk to other modules for. all I want my ABS to do is keep the brakes from locking up.
if the lights are on for abs, but it still does that, I don't care. can the siemens dme not be programmed to do the bare minimum to run the engine, and ignore everything else?

I certainly would want to at least eliminate AIR and catalyst monitoring. why not eliminate the functions that relate to the other modules? I am not going to be running a tiptronic or a PDK.

bty what do the pro racers use for a dme in gt3 racing? they have no abs, or any other modules on board, related to a street car.

in fact, isn't there a GT3 production model with no ABS? COUld you not use the stock programming for that dme as a starting point?

[autodoctor911]

ok, if it is going to be a lot easier, how much less horsepower is a 3.4 m97 going to make than an equivalent mA1 with unrestricted modifications to intake and exhaust, but stock internals?

stock horsepower

m97.21 295 hp
m97.22 303 hp
mA1.21 314 hp boxster S 2010
mA1.21 325 hp cayman S 2010

but does the direct injection/higher compression give more tuning potential?

[Topless]

I don't know. Anything is possible with enough determination and money. It looks like square peg/round hole to me though. I know two shops that have been attempting similar swaps for a year now and both have hit the DME wall.

If it were me (and it isn't) I would probably either keep the car and build it to spec rules to go racing with a thriving Boxster spec community in Texas or find a nice 2006 Cay S for cheap and go pound SCCA street prepared class. Either way could be fun. I get my kicks turning the steering wheel, not laying awake at night trying to unravel Porsche DME protocol. To each his own.

[autodoctor911]

the boxster spec class you mention, can this be done and still drive on the street with a competitive car?

give me a link to the santioning agency that is in texas. is it a PCA class?, or NASA?

[autodoctor911]

looking at a 997-2 system, and how everything is run, I am suprised at how simple it actually is. other manufacturers direct injection systems are much more complicated, with either a mechanical pump setup or high voltage injectors, with a separate driver module, etc.. Porsche seems to have simplified gasoline direct injection quite a bit, compared to others. this setup doesn't seem much different from a normal fuel injection, since the injectors run at 12v fired directly from dme.

[Topless]

Originally Posted by autodoctor911

the boxster spec class you mention, can this be done and still drive on the street with a competitive car?

give me a link to the santioning agency that is in texas. is it a PCA class?, or NASA?

Both. Texas PCA has the most active Boxster Spec region in the country. Your car would fit right in.

A street legal competitive Time Trial car (my class)- Boxster Spec X
http://www.renntrack.com/forums/forumdisplay.php?253-Boxster-Spec-Racing


A stripped and caged race car for wheel to wheel club racing- Boxster Spec R
http://www.texasspec.com/index.php?/forum/3-spec-boxster/