18 btl fully loaded

[04yzfr1 0]

does an one know the displacement of a fully loaded BTL the web site say .26cuft but thats not with the 3rd slug,

just tring to get as close as i can so that way my port will be as tuned as possible, or is .26cuft close enough

[johnecon2001 82]

.26 is close enough. Figure maybe .02 more for that third slug. It's not going to be audibly different than the 2 slug BTL.

[04yzfr1 0]

Thats what i was thinking also,

Thank You