ptcary Posted June 2, 2008 Report Share Posted June 2, 2008 Not going to be a worry for me with my little system , but i am curious when they start bustin, at what db?, I guess it's different for each car, but I know that Steve has done 160 in the Hoopty and the windshield is safe, and he seems to be ok with the Tahoe, too at 158. Quote PTCary 2003 SMD PT Cruiser 2011 Honda CBR 250R 2010 Mazda 3i Sport MY BUILD LOG Link to comment Share on other sites More sharing options...
EricM9104 Posted June 2, 2008 Report Share Posted June 2, 2008 I know that s-saudio on these forums (2 18"s in an eclipse) has gone through three windshields. It'll also depend on the angle of the windshield for how much it'll flex. Quote 2015 Honda Civic LX 4dr | 24k miles Stock H/U and mids/highs Power Acoustik GW3-12" D2 Sub HiFonics BXX1200.1D @ 1ohm Random 2.5^3' dual ported box NVX LOC Stinger wiring throughout 1977 Chevy SWB Cammed 350 Dual exhaust Cheap Wish stereo Link to comment Share on other sites More sharing options...
2000LaDe Posted June 2, 2008 Report Share Posted June 2, 2008 yah aerostar windshields are a no go with loud stereos..... http://s10.photobucket.com/albums/a133/han...=Picture049.flv Quote Link to comment Share on other sites More sharing options...
rollin Posted June 2, 2008 Report Share Posted June 2, 2008 lots variables. in Steves case I would guess lots of hush mat keeps the roof from flapping like a bird.also that trucks tend to be alittle tougher than your average import car.ie the eclipse with 2-18s so maybe ask about a specific car or truck, that way anyone with experience with them can answer. Quote The only way to get smarter is by playing a smarter opponent.. Link to comment Share on other sites More sharing options...
Jman08 Posted June 2, 2008 Report Share Posted June 2, 2008 alot has to do with the vehicle and how the windshield slants. Quote Youtube.com/J Hutch22 Link to comment Share on other sites More sharing options...
ptcary Posted June 2, 2008 Author Report Share Posted June 2, 2008 Thanks guys, I figured that many variabls come into play. I do see a lot of cars and trucks out there with no sound deadening in them at all, and they flex really bad. My PT is the first car of many that I've had, that I did deadening in, 3 layers in each door and one on the rest of the car, and it does make a difference. Just curious. Quote PTCary 2003 SMD PT Cruiser 2011 Honda CBR 250R 2010 Mazda 3i Sport MY BUILD LOG Link to comment Share on other sites More sharing options...
pimpedout97x Posted June 2, 2008 Report Share Posted June 2, 2008 depends on the car really... some windshields flex more than others Quote Link to comment Share on other sites More sharing options...
s-saudio Posted June 2, 2008 Report Share Posted June 2, 2008 (edited) depends on the car really... some windshields flex more than others agreed My windshield is at a pretty hard angle which sucks. After the deadening was adding and my power was more then doubled it did not seem to make much of a difference due to the power change. The frequency plays a big role in how quick a windshield breaks. If the vehicle is loud enough the 35-40hz range seems to do the most damage (it will all depend on the peaks of the vehicle and if the vehicle is playing through a box alone or is walled properly). Mosts vehicles windshields don't break from the SPL alone, most of the time its the glass moving past the soft points of its seal and smacking the metal framing it sits in. Edited June 2, 2008 by s-saudio Quote Caprice Wagon build 2010 Florida Spring Break Nationals MECA Drive By Winner 161DB on 15K @ 41hz Eclipse Build 155+ No Wall 2007 Steel Valley Regionals 3X 139.9 Winner 2008 SoundXtreme 3X 149.9 Winner 2008 Slamology 149.9 3X Winner 2008 149.9 Bass Race World Champion 2009 149.9 Florida Spring Break Nationals Champion Link to comment Share on other sites More sharing options...
00sdime00 Posted June 2, 2008 Report Share Posted June 2, 2008 The main thing depends on the structural integrity of the roof where it meets the top of the windshield in the center, as that is a major weak spot...Why do you think most of the big dog bassracers put a brace in that spot? Quote A half-wit gave you a piece of his mind, and you held on to it. My Youtube vids...enjoy anythings possible with the right build =] we accept visa and mastercard =] Link to comment Share on other sites More sharing options...
pimpedout97x Posted June 2, 2008 Report Share Posted June 2, 2008 my windshield meets my roof at nearly 90 degrees for the most part, other sedan cars, the glass like flows at the same angle into the roof, IMO those have the worst flex possible. (ie, frankie rio's lexus) Quote Link to comment Share on other sites More sharing options...
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