Need help with ported box

[shredder2]

2 3" ports at 18" long in a 1.29ft3 net will tune to 37.83 according to Winisd.

 

[fithwheel]

What's your opinion on how graph and velocity look?

 

[shredder2]

IMHO it'll be ok with the 2 3" ports... looks like where I'd want to be on velocity and the tune is up to you... it's peaking at 54hz

 

[THATpurpleKUSH 5,000+ posts]

I keep port velocity below 100mph, preferably below 75mph. Not sure what that is in metric.

 

[fithwheel]

That's pretty darn close to where I was thinking I wanted to b.

I really appreciate you taking the time helping me out. Sorry about the miss communication

 

[shredder2]

I keep port velocity below 100mph, preferably below 75mph. Not sure what that is in metric.

44.704 = 100 mph

33.528 = 75 mph

I wasn't sure either... lol

 

[fithwheel]

Hard for me to do anything without windows. Lap top is chrome book. Just a shot in the dark with not being able to download winisd or anything decent for that matter.Would **** spending time putting it together to have it sound like crap. Thanks again guys