quote:Originally posted by augustijnen Peter: i think terry is messing around with everybody saying he's showing his loudest box design
then all crx owner will copy
he's keeping the best for himself
i tried boxs that other people did 155's in and i lost a ton for me it was small box's like terrys. i also tried the single port and shredded my woofers first full burp and only did a 145-147. my loudest was 154.7 in 4 cube 2 6" aeros and 4 messed up konaki 12's
Posts: 1031 | From: colo | Registered: Sep 2001
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quote:Originally posted by augustijnen Peter: i think terry is messing around with everybody saying he's showing his loudest box design
then all crx owner will copy
he's keeping the best for himself
i tried boxs that other people did 155's in and i lost a ton for me it was small box's like terrys. i also tried the single port and shredded my woofers first full burp and only did a 145-147. my loudest was 154.7 in 4 cube 2 6" aeros and 4 messed up konaki 12's
Nope, this is 100% it for a fact.
Posts: 1770 | From: elgin | Registered: Jan 2003
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quote:Originally posted by AllNightLong: Are you planning on the show in High Point in December?
yep! 25-48NW and SSNW
-------------------- In Loving Memory, David Alfaro
2009 US.Top Cert.St C 158.7 2008 US.Top Cert.St C 158.4 2008 25-48NW NSPL World Champion 2007 U.S.Top Cert. Street A,B,C 2005 Db Drag St A World Champion 2004 Db Drag US.record 642 points 2003 Db Drag Points World Champion http://www.maxxsonics.com/
Back in 02 my girlfriend said I had to make a choice between her and DB Drag....I told that b-tch I've made harder decisions at the Coke machine. Posts: 4852 | From: Suitland,MD USA | Registered: Sep 2001
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posted
terry's showing us what he found was a problem, ive used some of terry box ideas and best box so far was brads box still in the crx now and does decent numbers, so far my best to date and last time before tree fell on it was 158.6 db on sensor and i had extra batteries and 16 volts on amp , now i need to find a new crx and i found automatic hehehe
-------------------- ear drums are very over rated
r.i.p. greg welch
2005 dbdrags bassrace world finalist 120-129.9 3rd place finish Posts: 1279 | From: somewere in time | Registered: Nov 2001
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quote:Originally posted by odog: good work terry have u ever tested with z1s
Cyclops are .3 louder
-------------------- In Loving Memory, David Alfaro
2009 US.Top Cert.St C 158.7 2008 US.Top Cert.St C 158.4 2008 25-48NW NSPL World Champion 2007 U.S.Top Cert. Street A,B,C 2005 Db Drag St A World Champion 2004 Db Drag US.record 642 points 2003 Db Drag Points World Champion http://www.maxxsonics.com/
Back in 02 my girlfriend said I had to make a choice between her and DB Drag....I told that b-tch I've made harder decisions at the Coke machine. Posts: 4852 | From: Suitland,MD USA | Registered: Sep 2001
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posted
I remeber when everyone told me that dyno in a crx was a waste of time.then it was only good in one spot.wish i was keeping my crx i would try some of this! but I want something with more room so on a too an astro
Posts: 1031 | From: colo | Registered: Sep 2001
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posted
hey terry those pics look just like my green crx with the sound det i just didnt do the panels just the car but single layer. but i have another car im building right now only time will tell if it is louder but im betn it is. good luck in no wall i c big numbers coming up out of a rex
-------------------- TEAM CACTUS SOUNDS
street a 2004 U S finals 1st place street a 2005 U S finals 7th place street a 2006 U S finals 7th place street c 2007 U S finals 1st place street c 2nd place at world finals 2009 sorry to say im done!
common chamber is the way to go, you just need to build it strong and give it proper amount of port. not too much and not too little.
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2006 Street A - 152.7 Certified 2007 Street C - 154.8 Certified 2007 Street A - 154.4 Certified 2008 Street C - 156.3 Certified 2008 Street B - 156.6 Certified
TEAM FEAR OF BASS Posts: 3611 | From: Toronto, On, Canada | Registered: Feb 2001
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posted
You guys should see my old or failed box designs,lol
-------------------- In Loving Memory, David Alfaro
2009 US.Top Cert.St C 158.7 2008 US.Top Cert.St C 158.4 2008 25-48NW NSPL World Champion 2007 U.S.Top Cert. Street A,B,C 2005 Db Drag St A World Champion 2004 Db Drag US.record 642 points 2003 Db Drag Points World Champion http://www.maxxsonics.com/
Back in 02 my girlfriend said I had to make a choice between her and DB Drag....I told that b-tch I've made harder decisions at the Coke machine. Posts: 4852 | From: Suitland,MD USA | Registered: Sep 2001
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2006 Street A - 152.7 Certified 2007 Street C - 154.8 Certified 2007 Street A - 154.4 Certified 2008 Street C - 156.3 Certified 2008 Street B - 156.6 Certified
TEAM FEAR OF BASS Posts: 3611 | From: Toronto, On, Canada | Registered: Feb 2001
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quote:Originally posted by THE-SCRAPER: You guys should see my old or failed box designs,lol
Lets see them.
-------------------- Team Kicker Team Cactus Sounds Team Powermaster Loud & Clear Comp. Group 2005 Usaci World Champ. 2006 Usaci World Champ. 2007 Usaci World Champ. 2008 MWSPL World Champ. 2008 Usaci World Champ. Posts: 274 | From: Kansas City | Registered: Sep 2004
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posted
Every time I've added dampening material the scores went down as well. But, after some re-tuning the car was louder than without it, however the note was lower as well. I may be wrong, but the reason I came up with is- when you add the dampening material, you're effectively lowering the car's resonant frequency. So the next step was to lengthen the port/s. A particular example from my limited experiences with dynamat include these results: 162.1@64hz without dynamat 161.1@64hz with dynamat (down 1db) 161.4@63hz with dynamat (didnt change anything but note) 161.7@62hz with dynamat (still same box only diff note on HU) 162.4@62hz with dynamat after re-tuning box
A lot of money in Dynamat, applying, testing, and re-tuning for only 3 tenths. But 3 tenths was 3 tenths.
quote:Originally posted by daviszac: Every time I've added dampening material the scores went down as well. But, after some re-tuning the car was louder than without it, however the note was lower as well. I may be wrong, but the reason I came up with is- when you add the dampening material, you're effectively lowering the car's resonant frequency. So the next step was to lengthen the port/s. A particular example from my limited experiences with dynamat include these results: 162.1@64hz without dynamat 161.1@64hz with dynamat (down 1db) 161.4@63hz with dynamat (didnt change anything but note) 161.7@62hz with dynamat (still same box only diff note on HU) 162.4@62hz with dynamat after re-tuning box
A lot of money in Dynamat, applying, testing, and re-tuning for only 3 tenths. But 3 tenths was 3 tenths.
You are correct about lowering resonant frequency. But also in your test reason you didn't see much is you test/compete in the kick with door open and with back panels out. In street class with panels in and with door closed and meter at the dash you see a lot larger gain from dynamat. Makes sense why you didn't see much of a gain. And you're not the only person that also competes in usaci to say they didn't see much of a gain from dynamat.
Posts: 1770 | From: elgin | Registered: Jan 2003
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posted
These results are concurrent with legal scores as well. I've always tested on the dash as well as the kick because USACi's WR's were in the legal position.
I've only found minimal increases in amplitude after dynamat and retuning the system, legal and outlaw. But as mentioned, any gain is a good one right?
-------------------- In Loving Memory, David Alfaro
2009 US.Top Cert.St C 158.7 2008 US.Top Cert.St C 158.4 2008 25-48NW NSPL World Champion 2007 U.S.Top Cert. Street A,B,C 2005 Db Drag St A World Champion 2004 Db Drag US.record 642 points 2003 Db Drag Points World Champion http://www.maxxsonics.com/
Back in 02 my girlfriend said I had to make a choice between her and DB Drag....I told that b-tch I've made harder decisions at the Coke machine. Posts: 4852 | From: Suitland,MD USA | Registered: Sep 2001
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posted
I tested my crx after dynamatting each section of the car. There are some spots that help, some spots that do nothing and some spots that hurt.Only place I haven't tried is the firewall because I have no idea how to get the dash off and then back on again. What type of box did firgard use (especially street a) I have never seen it
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2008 Spring Break Nationals Street B Champion 153.2dB 2008 dBDrag North American Finals 3rd Place Street A 155.0dB
A user of many brands of gear whose name cannot be said Posts: 3169 | From: Canada | Registered: Dec 2000
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