I recently bought a Slug Power Kit for my Impact MK2 (w Power Plenum and 700 mm Slug A).
When I first bought the Impact the power kit was not out. I replaced the OEM 52 mm hammer spring with a 57 mm spring from FXUSA,.because I could not get past 130 bar and barely getting 910 fps with 34 gn JSB/33.5 gn NSA. The 57 mm spring corrected that.
I got the kit mainly to get the needle probe. I am thinking that the washers included are to obtain more spring tension from the 52 mm spring; am I correct in assuming that?
What I plan to do is use the needle probe along with the lighter valve spring and ball that comes with the kit. I'm thinking combining that with the Huma Dual TP that I have ordered will give me plenty of power for slugs
Does anyone have an opinion on this; would you use the valve spring with the 57 mm HS?
Thanks for the input
When I first bought the Impact the power kit was not out. I replaced the OEM 52 mm hammer spring with a 57 mm spring from FXUSA,.because I could not get past 130 bar and barely getting 910 fps with 34 gn JSB/33.5 gn NSA. The 57 mm spring corrected that.
I got the kit mainly to get the needle probe. I am thinking that the washers included are to obtain more spring tension from the 52 mm spring; am I correct in assuming that?
What I plan to do is use the needle probe along with the lighter valve spring and ball that comes with the kit. I'm thinking combining that with the Huma Dual TP that I have ordered will give me plenty of power for slugs
Does anyone have an opinion on this; would you use the valve spring with the 57 mm HS?
Thanks for the input