RCT2 CHAIN SPEED

On some of the TTD's and KK's they have chain speed of something like 200mph. How do you get this speed

actually its more like 128

and to get it you need the *8 cars per trainer*

Yeah, I too use the 8 Cars Trainer. It usually causes the ride that I'm editing to consistently break down though. However, I believe there is a patch to fix that problem.