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I choose these parts:
PDI 210% spring
Phoenix Super Power Gear Set for Marui AEG
Guarder Infinite Torque-Up Short Type Motor
Prometheus 6.03mm inner barrel (285mm)
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My current configuration:
M4 made by G&P upgraded by WGC
Systema piston silent head
Standard Systema teflon cylinder (no bore up)
PDi 170% spring
PowerUpgrade all titanium teeth piston
6mm steel bearings
Systema standard ratio gear set
Systema hop-up
GP M120 motor
9,6V Sanyo 3300 mAh
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Is this your model?
http://www.gp-web.com/en/productspop.php?pid=1535
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I am considering upgrade of my AEG GP-625 to fps 420-430
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PDI210% is approximately around M130 spring rate. Provided if your smithing skills are good enough and you’re running both ends with bearing, you’ll get that figure.
I’ve not handled an original PDI210%, accidentally bought a fake one :’( , but generally PDI springs are longer than the Guarder’s.
The spec says it’s 8mm Bearing GB. Just change it to a 8mm bushing. Bearings are a no go for high springrate nor a super high ROF setup.
Get a good brand 11.1v 15c or 20c lipo. Then get the JG M-93 Red Motor. Pair it with stock ratio gearset (reinforced, but stock ratio). Should hit the ROF you’re aiming. Get your AOE, shave the 2nd and 3rd tooth flat to avoid pre-cranking/stripped piston.
Are you sure your AEG uses short stem motors? V2 gearboxes usually uses long type motors (unless if it’s VFC/Dboy’s PDW, which uses mid length motors). Those programmable MOSFET systems can in a way, control the ROF by playing with motor speeds. Unfortunately, FPS is fixed with your hardware.
Questions:
Is the “PowerUpgrade all titanium teeth piston” full metal or was it polycarb with metal tooth? Full metal (heavy) pistons aren’t good for high ROF setups.