Jump to content

Wagonized

Members
 View Profile  See their activity

  • Posts

    104

  • Joined

  • Last visited

 Content Type 

Posts posted by Wagonized

  1. Resting Voltage; Are You Guys Full of Shit?

    in XS Power Batteries / Chargers! (and other stuff too)

    Posted

    Batteries are only meant to be cycled a certain amount of times in total. In my experience they will not accept as much of a charge as they get older.


    But also, with a brand new battery that has NEVER seen alternator charging, one can train them to sit in the low-mid 14s without much trouble for 20-30 minutes after charger is off.

    Ever notice, most of the loudest street class SPL cars in the world are never seen running?? BC charging the batt with the alternator prevents a battery from being properly trained by a charger. The loudest street class SPL cars are trailer queens.

  10. Cold weather

    in SPL - SOUND PRESSURE LEVEL

    Posted

    i dont see why not since the air is more dense....

    i always run almost a volt higher in colder weather as well.

    you run a volt higher because your alt charges much better when its cold. dense air is more so from humidity than temperature.

    Cold makes your coils, amps and cables more efficient but makes the suspension, surrounds and car more rigid.

    Cold also makes your battery make FAR less power.

    a cold alt charges better but a hot battery works better.

    for me the only thing the heat/cold or elevation affected was my peak frequency. My score stayed the same providing I burped the correct frequency. Luckily in my explorer I was able to make a general graph plotting the temperature inside the cab of my truck vs the peak frequency and had it pretty dialed in.

    At one of our big 2x competitions in 2007 i started burping at 9 am to test and get a bassline because I was trying to break 155 for the first time ever by a street vehicle in canada. But as time went on and the hours passed my score kept decreasing....this was with a solid 5-8 min between burps on 25 amp charge so the batts were perfect. Turned out the temperature kept climbing from a cold morning to over 35 degrees (100farenheit) by the time I qualified at around 2pm. And I had my score dialed in at 155.2 but it had gone slowly up one freq at a time from 47 hz all the way to 52 hz and by the time I went to burp I only managed a 154.9 because my peak had gone all the way up to 53 hz obviously.

    Running the AC will cool down the interior yes but at the expense of your batt and electrical system. Not worth it IMO. Unless ur an extreme or super street competitor running your own AC unit to control cab temperature. Those guys have their temperatures and frequencies so dialed in its scary! Atleast I know the Riprock twins do...I assume others do aswell

  11. Sub Wall Design

    in Subwoofers / Enclosures

    Posted

    I say go for the 6sub wall and use an audioque 3500D for power.

    definitely use as much cone area as you can. 6 12 for sure over the 4. Then you need to decided what ur goals are with the setup...if you want SPL or it to play sick lows or both.

    You probably dont have enough room for a good bandpass to work so you're going to have to stick with a regular ported enclosure.

    If you do a drivers side port the closer to the b pillar you get the outter most port wall the louder it will be. You'll also be louder if you build the enclosure with a slight bend in it to contour with the B pillar rather than straight up and down. This is the type of bend im talking about.

    img0569.jpg

    Port on B pillar will be louder SPL wise and give you more room to lay your seat back aswell as the driver because you essentially will be leaning back into the port. But a centerport can also be loud it just needs to be tuned using other key areas to make them loud than a conventional drivers port. And a centerport will look more symmetrical. Up to you really.

    Another thing to think about is that a center port also typically plays better with the doors/windows open than a drivers port will.

  12. First Sanctioned Spl Event(148.2 @27 Hertz)

    in SPL - SOUND PRESSURE LEVEL

    Posted

    This weekend I hit 148.2 on the meter with my 4-cvr 15"s tuned to 27 hertz.If I tuned higher could I raise that to 150 maybe?Its walled off and I plan on getting two alternators and more batteries but I wont have them before the next competition.What should I tune it to?

    higher tuning should definitely get you to a 150..unless you were using a large suv and a box in the cargo area where the resonant frequency is still in the low 40hz range. then there might not be enough gap between the resonant freq and your 27hz note to make the 150...but would be very close and could be easily worked on and achieved

  16. Ab 400.1

    in Amplifiers

    Posted

    sonypicsandvids025xf0.th.jpgthpix.gif

    sonypicsandvids026zv8.th.jpgthpix.gif

    400.1 is a good amp but just isnt as efficient as the heavy hitters out there now. The 500.1 makes more power and uses less current than the 400.1.

    FWIW Ive ran my 500.1s daily strapped at 0.5 ohm on music. Thats running 4 of them off of 2 nsb90s and a 300 amp alt..(street C setup) :hairtrick:

×
×
  • Create New...