Nightshade 18'' displacement

[Bobby32 0]

What is the displacement for an 18'' Nightshade? Couldnt find it on the site. Also, how much room behind the pole does it need to vent in the box? I was thinking a few inches is good?

[CrazyKenKid 64]

for the 15inch it is .4 displacement and 9.75 mouting deth i thought the same motor was used on the 15 as the 18! but i could be wrong! and i also used 2inch beind the pole!

Edited December 20, 2009 by CrazyKenKid

[Bobby32 0]

for the 15inch it is .4 displacement and 9.75 mouting deth i thought the same motor was used on the 15 as the 18! but i could be wrong! and i also used 2inch beind the pole!

Thanks. So im looking at about .5 cubic ft. displacement out of the sub?

[jcarter1885 995]

for the 15inch it is .4 displacement and 9.75 mouting deth i thought the same motor was used on the 15 as the 18! but i could be wrong! and i also used 2inch beind the pole!

Thanks. So im looking at about .5 cubic ft. displacement out of the sub?

Just email jacob at [email protected] to get a legit answer or just search through this thread and the other pages. You will find a topic with this information in it also.

[CrazyKenKid 64]

nvm

Edited December 20, 2009 by CrazyKenKid

[CrazyKenKid 64]

or ask this guy Flipsid

the guy who did the 12-18inch build! i am sure he knows the displacement.. maybe lol!! but jacob is yoru best bet!

[NB50 206]

.5 sounds like way to much. Just looking at a similar sized sub the IA DP 18 is only .25.