slot vs. aeroports

[wilzyx 5,000+ posts]

ok... now it's back in line with what I'd expect...
3cu ft tuned at 23.17 //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif is that SQ land?

i dont think you would be very happy with that at all lol

 

[InhumanAcura 5,000+ posts]

id definately go with a 4"

 

[AcidicDreams 10+ year member]

id definately go with a 4"

you know what doesn't make sense to me... bigger port = long port ?? in any case ok.. I'll make it 4... is bigger better? and why?

then you make two 4" ports and BB6P wants them even longer... it seems to me a second port would half their length...

anyways I'm going to run along to calc class...

 

[DeuceLee 10+ year member]

you know what doesn't make sense to me... bigger port = long port ?? in any case ok.. I'll make it 4... is bigger better? and why?
then you make two 4" ports and BB6P wants them even longer... it seems to me a second port would half their length...

anyways I'm going to run along to calc class...

yeah thats the catch, if you double the number of ports, it usually wants to double each one's lenght...but that gives you more port area, which is what you want...

so its ALWAYS a compromise...thats why this whole question started in the first place...

 

[wilzyx 5,000+ posts]

you know what doesn't make sense to me... bigger port = long port ?? in any case ok.. I'll make it 4... is bigger better? and why?
then you make two 4" ports and BB6P wants them even longer... it seems to me a second port would half their length...

anyways I'm going to run along to calc class...

more port area raises tuning, so you must have a longer port to get the same tuning as a smaller one with less port area

 

[AcidicDreams 10+ year member]

more port area raises tuning, so you must have a longer port to get the same tuning as a smaller one with less port area

ahh ic... hmm... but more port area is desirable? and why? to eliminate port noise?

so 2 4" ports that are 30" long in a 3.3cu ft box is better, tuned at 25.5hz

//content.invisioncic.com/y282845/emoticons/crazy.gif.c13912c32de98515d3142759a824dae7.gif this ported stuff is just starting to make sense

 

[AcidicDreams 10+ year member]

also can I just use PVC instead of these

http://www.partsexpress.com/pe/pshowdetl.cfm?&DID=7&Partnumber=268-338&scqty=1

to attach to these

http://www.partsexpress.com/pe/pshowdetl.cfm?&DID=7&Partnumber=260-403&scqty=1

so I can use really long port tubes?

 

[AcidicDreams 10+ year member]

??????????

 

[InhumanAcura 5,000+ posts]

why are you not wanting to get the precision ports? you can use thin wall pvc with those flanges if you sand on the ends of the pvc a little bit..

you can buy just the flanges direct from precision.

 

[AcidicDreams 10+ year member]

why are you not wanting to get the precision ports? you can use thin wall pvc with those flanges if you sand on the ends of the pvc a little bit..
you can buy just the flanges direct from precision.

the program is telling me I need 30" ports for my tuning... and I couldn't find PP long enough at PE

 

[InhumanAcura 5,000+ posts]

the program is telling me I need 30" ports for my tuning... and I couldn't find PP long enough at PE

thats what i was thinking //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif...but, yeah..just get some 4" thin wall from hd/lowes..just sand the ends till the ring that couples that tube and flare together slips over..

 

[AcidicDreams 10+ year member]

thats what i was thinking //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif...but, yeah..just get some 4" thin wall from hd/lowes..just sand the ends till the ring that couples that tube and flare together slips over..

actually I was meandering through their web site and they have some cardboard tubes called "bascore" that run full legnth... I'll check PE

 

[AcidicDreams 10+ year member]

hmm PE has some good looking flares themselves for both inside and out... I could use double flared ends with the PVC....