[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
RE: alpha N vs MAF
- Subject: RE: alpha N vs MAF
- From: Land Shark <lndshrk@xxxxxxxxxxxx>
- Date: Wed, 23 Sep 1998 09:44:55 -0600
It was written:
>i have heard some mixed reviews on the alpha N. Heard that someone ran
>lean and blew up his motor.
No one "ran lean" and blew up their motor.. what someone DID do was
run the system on a motor it wasnt calibrated for..
If you change ANYTHING on an alpha-N motor, you must recalibrate..
Cam gear?? recalibrate..
Exhaust?? Recalibrate!!
>however, the MAF from split second does not produce as much power, but it
>comes with the air fuel meter and the calibrator
>they cost the same $900.
Ohh.. here we go AGAIN.. Would you ALL please make this the LAST time
I have to say this *grin*
You CANNOT tune with a stock Oxygen Sensor.. the cheapest REAL meter
is well over $1000 dollars by itself.. this "systems" are being sold
with BS air fuel meters that are dependent on stock-type Oxygen Sensors
which CANNOT and DO NOT yield reproducable results from run to run..
Don't believe me.. then call Robert BOSCH.. they developed the sensor,
I think they might know ;)
ALPHA-N is NOT for street cars.. it doesn't belong on a daily driver, it's
for race cars.. my system is an improvement over that on the Gruppe A
touring cars.. NOT FOR STREET USE!
And yes, I know some people ARE running it on the street, but it's not
my suggestion, nor is it my wish!
As far as any external box with knobs and a MAF... well.. if'n it were
THAT easy to drop a MAF on any car, you'd see a lot more BOSCH cars with
MAFs! It isn't.. it requires a COMPLETE code rewrite!
Jim
PS: The whole thing comes down to this.. (for you math heads)
Try to match a LogE curve to a 5th order polynomial using 3 points
and then tell me how much error you get.. (hint: lots)
------------------------------
End of bmw-digest V9 #198
*************************