Race Sim Central
Rec.Autos.Simulators Archive

Optimizing GPL & PDPI L4 Performance

2 posts by 2 people · 03 Dec 1998 - 04 Dec 1998

S. Cha 03 Dec 1998#438104
I just replaced a CH GameCard III with a PDPI L4 game port; I'm using the PDPI "L4 Thrustmaster T1/T2 With Adapter" joystick driver. I was able to successfully confiqure/calibrate my Extreme Competition Controls CDS steering wheel/pedals (250 ohm pots) with adapter using the GPL "Generic" driver; but I cannot calibrate or assign controls when using the "DirectInput" driver. Is this normal? Previously with the CH GameCard I could calibrate either the "Generic" or "DirectInput" drivers with "DirectInput" providing better performance. Car control has definitely improved with the PDPI card, in one evening I dropped my best lap times by at least 1/2 a second at Monza, Mosport and Watkins Glen. However when the car is stopped I can still see slight jittering of the front tires; I was expecting/hoping for absolutely no jitter. Can anyone tell me if I have configured my PDPI card/steering wheel for optimal GPL performance? Will changing the my wheel/pedal's 250 ohm pots for a standard 100 ohm pots provide any improvement? Stephen
I have the PDPI card and an early Extreme setup with the 250K ohm pots. I could not get a decent calibration under Direct Input. Because of that I couldn't get a good calibration in GPL using Direct Input. I purchased 100K ohm pots from Extreme and the performance of the PDPI in Direct Input is great now. GPL is calibrating rock solid using Direct Input and I am quite pleased. Robert Some Snippage
Quoted text (14 lines)>I just replaced a CH GameCard III with a PDPI L4 game port; I'm using >the PDPI "L4 Thrustmaster T1/T2 With Adapter" joystick driver. >I was able to successfully confiqure/calibrate my Extreme Competition >Controls CDS steering wheel/pedals (250 ohm pots) with adapter using the >GPL "Generic" driver; but I cannot calibrate or assign controls when >using the "DirectInput" driver. Is this normal? Previously with the CH >GameCard I could calibrate either the "Generic" or "DirectInput" drivers >with "DirectInput" providing better performance. >Can anyone tell me if I have configured my PDPI card/steering wheel for >optimal GPL performance? Will changing the my wheel/pedal's 250 ohm >pots for a standard 100 ohm pots provide any improvement? >Stephen

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