My 3 month old impact x took dump yesterday.seams fine but chronograph shows 200 fps drop WHATS UP???
Fx power drop
- Thread starter Hatmike
- Start date
From FX
Low FPS check list;
Low FPS check list;
- Insure C1 is bottom out tight
- Insure Valve seat is bottom out on valve rod
- Use only D90 or harder to replace C3 bumper
- Insure probe feeder block has a distance of 45mm to edge of butt plate.
- Check for crack value seat
- Clear air passages on regulator piston and adjuster screw, piston and screw my need replacing if vary slow recovery time on reg gauge
- Valve adjuster line 4 for testing
- Power wheel on max with no slack on adjuster screw
- Reg pressure 140-150b for testing
- Insure Brass TP on barrels not loose
- Insure pellet probe oring and valve rod 2.2x1 oring not blowing when fired
- Insure valve housing set screw is seating on the flat surface of the valve housing
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Thanks guys.ok gun 2 months old.the little o ring that goes on valve rod just got tired.after watching vides from master.class had to modify my o ring but omg on 135 bar and 25 cal pellet 34 grain 900 fps.come on man.
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That is point number 3... that bumper suck! I have read a lot that problem (usually come together with number 2 at least in my case), hope Fx do better with that one in the future ... 135 bar on 0.25cal on 34gn pellet @ 900fps is pretty good in my books
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I use a delrin disc in place of the C3 o-ring... you'll get a little more velocity with it also.
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