Interesting post for sure but all that work is simply not worth the effort IMO. Just get a nice original Japanese Innova - I had 13 at one point and after selling many I still have 3 or 4.
The important point that I want to add is that you need to give us the power output of your gun at 9, 10, 11... up to 15 pumps too - this is vital:
In my extensive experience (owning 13 Innovas and servicing 10+ for other people), If you can achieve a significant power increase from pump 7 to 8 as you have reported, then the power is going to go up again significantly on the next 2 or 3 pumps.
In order to avoid holding an illegal Sec. 1, it is really important that you can show that after 15 pumps the power is still below 12 ft lb.
From the hours and hours of testing that I have done I have reached the following conclusion which is not absolutely the case for every Innova but is a guide and will be close..
.22 cal will reach 11.4 ft lb after 8 pumps when the blow-off valve starts to operate on pump number 5 or 6. The gun will then not go over 12 even after 15 pumps.
.177 cal will reach 11.4 ft lb after 12 pumps when the blow-off valve starts to operate on pump number 7 or 8. The gun will then not go over 12 even after 15 pumps.
These are my findings and I report them simply to show that keeping these guns legal is not as simple as it may at first appear.
HTH
Matty
Originally Posted by MattyBoy
Interesting post for sure but all that work is simply not worth the effort IMO. Just get a nice original Japanese Innova - I had 13 at one point and after selling many I still have 3 or 4.
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