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I suspect you aren't giving your tune enough credit on the 89

December 13 2011 at 1:07 AM
scot laughlin  (Login classicalgas)
YF


Response to Progress on two fronts.

they are twangy things from the factory ..having all that commotion against your cheekbone doesn't help.If it seems quiet, you did a nice job inside.

What pressure on the HPA QB? I'm a fan of light strikers to quiet and reduce gas use. I've run QB pcp's at 2000 psi on a striker 70% of stock weight with a delrin valve head. Factory spring, no shim. That's where I'd start.

The QB HDD should work well with your setup too.

 
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