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Airsoft Forums UK

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Sitting Duck
you mean cylinder ???

Chopper92
Chopper92
yeah sorry ! too early on a monday

S
Sitting Duck
first one is on the limits

and second is a smidge over volume but what you seek is a distance of at least 52mm to front of cylinder from port

-15mm = 37 for 370 barrel

S
Sitting Duck
that is perfect for 0.20's and should lift .25's ok but heavier bb's will need more vol ratio or port further back - tbh a little over vol is better than under volume

S
Sitting Duck
S
Sitting Duck
eg for heavier bb's on a 363 then look at the 400 type cylinder or one that has ports 55mm+ back front front of cylinder

S
Sitting Duck
oh forget the typo's n crap - you get the idea hopefully

Chopper92
Chopper92
Cheers, useful stuff, when looking into it online it was getting so technical i was at a loss !

S
Sitting Duck
yup - it is a bollox tbh unless you like maths n crap but thos bits do kind of work out about right for me - 15 to 20mm of cylinder ports dimensions. And bevel x 3 = easy rough gear ratio calculator

S
Sitting Duck
Damn I need to get out more

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