3 gear pull durametric log
#1
3 gear pull durametric log
Hi Gents
I did some 3 gear pulls and logged actual values, the car is running 99 ron fuel,K16 turbos, 9ff exhaust with a euro tuner tune. I am not sure that the tune is correct.
input appreciated.
Regards Rob
I did some 3 gear pulls and logged actual values, the car is running 99 ron fuel,K16 turbos, 9ff exhaust with a euro tuner tune. I am not sure that the tune is correct.
input appreciated.
Regards Rob
#2
It would be nice to also log "Engine Load" at the same time. If you plot load vs rpm, you get a poor man's dyno curve. You don't know the actual value, but you can get relative numbers. You can compute hp as Load*RPM*pi/16,500, still also a relative number.
#3
Looks pretty good - 1.0 bar max, injector duty cycles around 86% max. AFR's down around 11.7-8.
It would be nice to also log "Engine Load" at the same time. If you plot load vs rpm, you get a poor man's dyno curve. You don't know the actual value, but you can get relative numbers. You can compute hp as Load*RPM*pi/16,500, still also a relative number.
It would be nice to also log "Engine Load" at the same time. If you plot load vs rpm, you get a poor man's dyno curve. You don't know the actual value, but you can get relative numbers. You can compute hp as Load*RPM*pi/16,500, still also a relative number.
I'm still playing with my new durametric. Could you please tell me how you worked out the AFR from the log shown. I can see the Lambda readings. What do you do with them to convert. Also how did you work out the inj duty cycle.
Cheers,
Frank
#4
AFR = 14.7*Lambda
(14.7 is stoichiomeric ratio for air / gasoline)
Duty cycle = Injector time * RPM / 1200
(time ms)*(0.001 s/ms)*(RPM rot/min)*(1/60 min/s)*(1/2 intake/rev)*100%
Bar = (Boost - ambient pressure)/980
I wish I knew how to convert Durametric load (or torque) to ft-lbs... I asked Durametric and they said they don't know - they just report what the ECU tells them.
Jon
#7
here is a sample... stock 996 target AFrs... RPM vs. engine load...
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__________________
2001 996TT 3.6L and stock ECU
9.66 seconds @ 147.76 mph 1/4 mile click to view
160 mph @ 9.77 seconds in 1/4 mile click to view
50% OFF ON PORSCHE ECU TUNING BLACK FRIDAY SPECIAL
2001 996TT 3.6L and stock ECU
9.66 seconds @ 147.76 mph 1/4 mile click to view
160 mph @ 9.77 seconds in 1/4 mile click to view
50% OFF ON PORSCHE ECU TUNING BLACK FRIDAY SPECIAL
Last edited by markski@markskituning; 08-06-2010 at 10:12 AM.
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#11
In my case average boost (1920 - 1008) / 980 = 0.93 bar
#12
Bar = (Boost pressure of sensor - Boost pressure at idle)/980
Jon
#13
Most of the maps are set up in RPMs vs. engine load.... that goes for corrected afrs, target afrs, the 4 ignition maps... ironically some of the boost maps are rpms vs engine temp... thats kinda odd but oh well thats the Germans.. lol...
here is a sample... stock 996 target AFrs... RPM vs. engine load...
here is a sample... stock 996 target AFrs... RPM vs. engine load...
Jon
#14
__________________
2001 996TT 3.6L and stock ECU
9.66 seconds @ 147.76 mph 1/4 mile click to view
160 mph @ 9.77 seconds in 1/4 mile click to view
50% OFF ON PORSCHE ECU TUNING BLACK FRIDAY SPECIAL
2001 996TT 3.6L and stock ECU
9.66 seconds @ 147.76 mph 1/4 mile click to view
160 mph @ 9.77 seconds in 1/4 mile click to view
50% OFF ON PORSCHE ECU TUNING BLACK FRIDAY SPECIAL
Last edited by markski@markskituning; 08-06-2010 at 10:18 AM.