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Originally Posted by ILLusion
I just upgraded a bone stock Tokyo Marui P90 TR.
In stock form, it was shooting 290fps.
I threw in a PDI 150%, Guarder metal bushings and nothing else and it was spitting out 410fps.
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i put it up in other threads last year, but just to add
My SR16 had a 6.04 tightbore, systema duracon piston head and a PDI 150%
it chronied with 460fps on .20g
after working the spring in(burning through bags of BBs and leaving it compressed for weeks at a time, its down to 400fps.
Other threads have discussed the PDI 150% but its not mentioned in this thread.
Illusion can prolly sum it up for people who refrence this thread and not the others. Something about PDI 150% and PDI 150% Pro getting mixed up and essentially having a 190% in your gun.