VSR10 PDI Spring Ratings
 

I have a TM VSR10 upgraded with the full Edgi Upgrade kit

430mm 6.01 TB
7mm Spring Guide
Custom Sears
Custom Piston
Custom Cylinder Head
Laylax Teflon Cylinder

I am Looking for a spring that will keep me at 500fps.

I see I can get a Laylay 150 but I cant get one of those so what would be the equivelent in the PDI?
I have also seen MAG springs but have no idea what they like or how the rating works

also being that I have a 7mm spring guide what Diameter spring do i use? (only 7mm?)

Please assist
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A PDI 310 spring is about the equivalent of the laylax 150 spring.

You shouldn't have any trouble with your spring guide and this spring, looks like it will fit.

But just for reference...
Use a 7mm spring guide if the inner diameter of the spring is around 9mm.
Use a 9mm spring guide if the inner diameter of the spring is around 11mm.

Awesome thanks for the info

Are the PDI springs not 11mm ? can I still use it on the 7mm spring guide?

You shouldn't use an 11mm spring on a 7mm spring guide, you could, but I wouldn't recommend it.
Your spring guide right now (7mm) will have no problem with the PDI 310 spring, as this spring has a 9mm inner diameter.

awesome thanks