Gotz1lung Posted May 27, 2009 Report Share Posted May 27, 2009 So since i found SMD, and realized that this Hobby/Sport is alot more affordable than it used to be, i have got the bug bad! I want to get back into competing but the rules are so different than i last used and to be honest, i cant figure out what class id be in to save my life. My main question is this, The rear window in my truck is 25in to the bottom edge but the sides are only 22, what window will they use to go by cuzz that extra 3inches would really come in handy... 2nd, if my setup includes 4) 12s, 2) 1500.1 and 1) extra battery below the window what class is that? What about 2) extra batteries?? I dont have one as of yet but will be doing a HO Alt as well, does that change classes? Sorry for being such a Newb, but who better to ask than the best around... Quote 93 Chevy Silverado Crossfire,Dayton Soon to have 6 Lvl4 15s DC Audio Dealer and Team Member Link to comment Share on other sites More sharing options...
HHR Ed Posted May 27, 2009 Report Share Posted May 27, 2009 Is it db Drag? If so, the window line would be the lowest point of the front side windows. so 22in in your case. With your setup you could be in street C, or steet Max if above the window line. If still below the window line and add the extra batts then its Super street No-Wall. Street and street Max you must shut the engine off during the run so the alty doesnt matter. If you want to run the alty, then its SS-NW Quote Ed Lester ShowtimeSPL Host Showtime Electronics Video MarketingMy old Build Loghttp://www.stevemead...08/#entry511451http://www.youtube.com/showtimespl 5 time dB Drag Finalist Last ride 2007 HHR, current dB 153.5 and bass race 149.4 dB. 153.0 dB on music New Ride, 2008 HHR SS. Build under way. Loudest score ever = 171dB 2009 dB Drag Racing, North American Points Champion Link to comment Share on other sites More sharing options...
David Posted May 27, 2009 Report Share Posted May 27, 2009 the window line I believe is the front windows Quote Link to comment Share on other sites More sharing options...
matt402 Posted May 27, 2009 Report Share Posted May 27, 2009 the rule is for the lowest window line. what org are u competing in? Quote Link to comment Share on other sites More sharing options...
matt402 Posted May 27, 2009 Report Share Posted May 27, 2009 only 1 battery in street max. Quote Link to comment Share on other sites More sharing options...
Gotz1lung Posted May 27, 2009 Author Report Share Posted May 27, 2009 By the looks of it, Slamology will be my first show if things go to plan. So the way i understand Sat is DbDrag and Sunday is Usaci Outlaw. Lemme guess Different rules for the 2 days... If its the side windows, im pretty well screwed i think, wheres my Tape measure and keys.... Quote 93 Chevy Silverado Crossfire,Dayton Soon to have 6 Lvl4 15s DC Audio Dealer and Team Member Link to comment Share on other sites More sharing options...
HHR Ed Posted May 27, 2009 Report Share Posted May 27, 2009 22 in is alot of room. for 4 12s I like to have my boxes at roughly 7.2 cubes or so, common chamber ported. Quote Ed Lester ShowtimeSPL Host Showtime Electronics Video MarketingMy old Build Loghttp://www.stevemead...08/#entry511451http://www.youtube.com/showtimespl 5 time dB Drag Finalist Last ride 2007 HHR, current dB 153.5 and bass race 149.4 dB. 153.0 dB on music New Ride, 2008 HHR SS. Build under way. Loudest score ever = 171dB 2009 dB Drag Racing, North American Points Champion Link to comment Share on other sites More sharing options...
matt402 Posted May 27, 2009 Report Share Posted May 27, 2009 u could do bassrace/street beat... Quote Link to comment Share on other sites More sharing options...
Gotz1lung Posted May 27, 2009 Author Report Share Posted May 27, 2009 Whew..the sides are the same hieght as the XC windows so im clear. The box i have sketched up is 20hx62wx17d but i needed the 2inches under the box for Crossovers,wiring, ETC. For 8.4 Net(2.1/sub) with 124in^2 of port, @ 37hz Would i be better going with a little less cubes and tuning a Hz or two higher? My main concern is that im gonna be under powering the subs a little. They are 800wrms and at 1ohm im splitting 1500 between two subs per amp. Quote 93 Chevy Silverado Crossfire,Dayton Soon to have 6 Lvl4 15s DC Audio Dealer and Team Member Link to comment Share on other sites More sharing options...
HHR Ed Posted May 27, 2009 Report Share Posted May 27, 2009 If you shrink the box a bit and tune higher, you can get higher efficiency and potentially higher SPL. But you may sacrifice some SQ. so thats your call. Quote Ed Lester ShowtimeSPL Host Showtime Electronics Video MarketingMy old Build Loghttp://www.stevemead...08/#entry511451http://www.youtube.com/showtimespl 5 time dB Drag Finalist Last ride 2007 HHR, current dB 153.5 and bass race 149.4 dB. 153.0 dB on music New Ride, 2008 HHR SS. Build under way. Loudest score ever = 171dB 2009 dB Drag Racing, North American Points Champion Link to comment Share on other sites More sharing options...
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