Finally got a baseline for 1377

[AZAG]

So I was inspired to do some power mods by this thread:

http://www.crosman-air-pistol-owners-forum.com/board/index.php?topic=3688.msg35888#msg35888

My goal is to maximize fps at 3 pumps.  The following tests were performed with JSB Exact 8.4gn.

Results:
Pumps   fps   Mod 1   Mod 2   Mod 3   Gain
2   293   293   304   304   11
3   319   338   345   357   38
4   364   376   389   400   36
5   387   400   414   432   45
6   417   428   446   459   42
7   447   447   463   484   37
8   450   458   475   503   53
9   459   462   482   518   59
10   468   482   507   535   67

First column is stock and the other three are mods.
Mod 1   File valve and shim with one washer
Mod 2   File valve and shim with two washers
Mod 3    File valve and shim with one washer and paper, stiffen piston

Just to see what would happen I took it up to 15 pumps.
11   547
12   557
13   560
14   572
15   581

I'm very happy with the results so far.  Next up will be a reduced volume valve to get the pressure up faster.

[1377x]

nice numbers!