Darksideofsound Posted June 7, 2009 Author Report Share Posted June 7, 2009 Your burp freq. depends on your cars freq. My box is tuned to 33 hz, I peak at 40hz. You need to find the freq. of your car and build a box around 8Hz lower and that should give you the highest numbers. If I tried to burp at 60Hz I would be down 4 to 5 db's. Getting high numbers has nothing to with where you "think" you should burp at. Its all about where your car wants to burp at. Testing and more testing and then learning from the testing is the only way the get good numbers. Example of all this... I hit a 147.1 with a little over 1600 watts at a burp freq. of 40Hz. k, time to get the tl out.... Quote Link to comment Share on other sites More sharing options...
~digital~bass~ Posted June 7, 2009 Report Share Posted June 7, 2009 (edited) Burping lower will yield a lower score but a bigger "awwww" on the audiences face. Edited June 7, 2009 by ~digital~bass~ Quote Car Audio + Bodyboarding/Longboarding = LIFE!!! Link to comment Share on other sites More sharing options...
Darksideofsound Posted June 7, 2009 Author Report Share Posted June 7, 2009 see, around where i am, there is only one other person that has a stereo that would even keep up with me, so if i keep my box tuned low and burp low, i'm alright with it, dont really care if i get "the most" out of it here.....but when I go to comps in the states(i'm from canada eh!!!), i want to get the most out of it there... people up here just want to see high numbers.... I guess i will be building a removable port.... Quote Link to comment Share on other sites More sharing options...
fox_racin4 Posted June 7, 2009 Report Share Posted June 7, 2009 were from canada are ya?! Quote 1998 gmc extd cab 12 crossfire C710s 4 SAZ-4500s 3 Singer 400A altsbuncha mids/highs Team Asshole Link to comment Share on other sites More sharing options...
Darksideofsound Posted June 7, 2009 Author Report Share Posted June 7, 2009 N E 1 got pics of removable ports??? or ideas and tips on building one? Quote Link to comment Share on other sites More sharing options...
Darksideofsound Posted June 7, 2009 Author Report Share Posted June 7, 2009 were from canada are ya?! NB Quote Link to comment Share on other sites More sharing options...
fox_racin4 Posted June 7, 2009 Report Share Posted June 7, 2009 ahh ok nevermind im from canada to but.. not near you lol Quote 1998 gmc extd cab 12 crossfire C710s 4 SAZ-4500s 3 Singer 400A altsbuncha mids/highs Team Asshole Link to comment Share on other sites More sharing options...
Pioneer~Saturn Posted June 7, 2009 Report Share Posted June 7, 2009 (edited) http://www.caraudio.com/forum/showthread.p...changeable+port Look through there if you were wanting ideas for the removeableport setup, that's a removeable port setup I had going but never changed the port wall out to try and see what kind of numbers it could really get...but with the quad 4" ports tuned to 33Hz (not 31Hz like the thread says, redid calculations) it got a 148 @ 40Hz out of the trunk Edited June 7, 2009 by Pioneer~Saturn Quote Team Tupperware <First dual-alternator 'real' Saturn (pre-2002) on the planet>(3) 15" Fi SP4's fed by (2) M3a's strapped @ .66712.75 cubes net @ 25Hz with 200 sq inches of port area (lowz...?)Stock alt position (custom bracket) 225 amp Mechman Roof = steel and fiberglass (u mad?)(2) XS Power D3100's, (2) rhino batts, No battery upfront (for now, smh)4 power+ 4 ground runs of 1/0-gauge to rear"If its been done before...you're doing it wrong" : ) "stfu about scores and float $hit..." Link to comment Share on other sites More sharing options...
banginAltima Posted June 8, 2009 Report Share Posted June 8, 2009 Burping lower will yield a lower score but a bigger "awwww" on the audiences face. Not true. Quote If you build it, db's will come... NSPL World Record Holder Trunk 0-1800 watts---147.9 with 1722 clamped watts @ 40Hz(9-20-09). Competition Only Record Holder Trunk 0-500 watts---148.1 2006 Nissan Altima 3.5 SE Currently Rebuilding.... My 150db Plus Trunk Build I do box designs. [benH] 6:24 pm: clipping doesn't really hurt subs [benH] 6:24 pm: being an idiot is what blows subs Link to comment Share on other sites More sharing options...
smokeumtires Posted June 8, 2009 Report Share Posted June 8, 2009 its like bangin said... Its wat your car peaks at... if your car peaks at 29 HZ and you burp it at 40 your numbers are gonna be lower.But if you tune and tune and tune and keep playin with that TL. youll find the magic number. And once you do go from there, BUild your tuned port around that frequency and when your just daily bumpin slap in the 30-35hz port. Quote Link to comment Share on other sites More sharing options...
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