The switch pitch 11" converter can give approximately 2000 stall open,2400 activated and 2800 to 3000 on the transbrake.The setup works good for low 11 to hi 10 second cars.The thing is the converters dont live forever with the brake but the performance is insane with the right combination.I have use it with the te 44 and 49 turbos with high boost and tye the hi stall switch into the transbrake.I have updated versions of the converter in the shop.These were developed in conjunction with Joe from PRO TORQUE in Bohemia NY.