Pitlane speed limit

I imagine this has been asked before but would someone be very kind and tell me how to get rid of pitlane speed limits so i can drive a 1985 patched version of GP3 more effectively.

Cheers in advance.

its done only with Gp3Master .... ( an editor at the old download section )

The problem is that it changes the pitlane speed limit for the player but not the AI, who always drive at the original game pitlane speed limit, which means that if the pitlane speed limit is increased, the player has a considerable advantage over the AI in being to go through the pits much faster. Not very realistic.

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Jacki is correct!
Unfortunately Gp3master is the only program wich can change the pit speed limit,but it changes only the player car speed limit,wich very unfair and unrealistic!