OXIDE
New Member
Posts: 50
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Post by OXIDE on May 19, 2015 21:52:13 GMT -5
I have a m90 spring, need it for cqb. But anyways i was wondering do i need to short stroke my piston for a low fps sping?
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Zzan
New Member
Posts: 116
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Post by Zzan on May 20, 2015 8:37:23 GMT -5
Isn't the purpose of Short Stroking to let you use a higher power spring to combat overspin while shortening the piston travel to lower FPS to desired level?
I wouldn't think you would need or want to short stroke with a m90 spring.
Though if you are having overspin issues with the m90 (double or multi shots on semi, piston stopping mid cycle after shot on semi) You may want to go back to your stock spring and then short stroke one tooth at a time until you achieve your desired FPS.
Will be a pain in the behind if you don't have your own or have access to a chrono.
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T6e9a
New Member
Back in business
Posts: 911
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Post by T6e9a on May 20, 2015 9:58:09 GMT -5
Short stroking is really only for strong springs. Short stroking an m90 would get a really low FPS. If anything, I would run it full stroke in a stock setup. If the motor is too low of a TPA, over spin/double shots could be an issue, in which you'll need a stronger spring.
Short stroking often times is to tune high springs down, given you stay closely properly volumed. (Shorter barrels than 455mm) Or to allow for high speed setups, where you need an over powered spring to return the piston fast enough for the power train. Short stroking, in combination with correct AoE in high speed setups work to help prevent PME.
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