The Truth About Cars » Sound http://www.thetruthaboutcars.com The Truth About Cars is dedicated to providing candid, unbiased automobile reviews and the latest in auto industry news. Tue, 29 Jul 2014 17:28:43 +0000 en-US hourly 1 http://wordpress.org/?v=3.9.1 The Truth About Cars is dedicated to providing candid, unbiased automobile reviews and the latest in auto industry news. The Truth About Cars no The Truth About Cars editors@ttac.com editors@ttac.com (The Truth About Cars) 2006-2009 The Truth About Cars The Truth About Cars is dedicated to providing candid, unbiased automobile reviews and the latest in auto industry news. The Truth About Cars » Sound http://www.thetruthaboutcars.com/wp-content/themes/ttac-theme/images/logo.gif http://www.thetruthaboutcars.com Piston Slap: Is it Piston Slap? Ja-nee, baby! http://www.thetruthaboutcars.com/2013/04/piston-slap-is-it-piston-slap-ja-nee-baby/ http://www.thetruthaboutcars.com/2013/04/piston-slap-is-it-piston-slap-ja-nee-baby/#comments Tue, 16 Apr 2013 10:00:19 +0000 http://www.thetruthaboutcars.com/?p=484975

Mu-een (from Cape Town, South Africa!) writes:

Hi I would like to know what is the difference sound of a tappet noise, or bad rocker, or a piston slap. Thanks regards.

Mu-een

Sajeev answers:

I suspect that –for most engines– piston slap is a deeper, more resonant sound than an out of whack tappet.  Pistons are bigger and buried further in the engine (usually) than tappets, it’s gonna have a different sound by design.  Conversely, you could easily isolate the two sounds with a decent mechanic’s stethoscope, or with a cheap one. So for whatever vehicle you own down in Cape Town, try isolating the noise with a stethoscope…or maybe just a loooooong screwdriver against the cam/valve cover on the top of the motor.

Now on to the important implications of this letter. Put another way, OH MY DAMN SON U KNOW WHAT THIS MEANS? We got us some Piston Slaps from North America, South America, Europe, Asia, Australia…and now Africa!

TTAC RULEZ THE WORLD! This is Panther Love with an LSX-FTW swap: a fantastic combination of wonderful things in a singular moment.

 


Wait…is Antarctica a continent too?

AND they drive cars down there?

Do they read TTAC?

NO???

We were sooooo close to world domination!

 

 

 

Send your queries to sajeev@thetruthaboutcars.com. ESPECIALLY IF YOU ARE FROM ANTARCTICA. Spare no details and ask for a speedy resolution if you’re in a hurry…but be realistic, and use your make/model specific forums instead of TTAC for more timely advice.

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When You Need Garage Tunes Right Now: Field Expedient Surround-Sound Audio System http://www.thetruthaboutcars.com/2012/02/when-you-need-garage-tunes-right-now-field-expedient-surround-sound-audio-system/ http://www.thetruthaboutcars.com/2012/02/when-you-need-garage-tunes-right-now-field-expedient-surround-sound-audio-system/#comments Sun, 19 Feb 2012 20:20:23 +0000 http://www.thetruthaboutcars.com/?p=431624 When I moved into a Victorian near downtown Denver summer before last, I finally had something I’ve been longing for since I started messing around with cars: a garage! Since that time, I’ve been (very) gradually upgrading the place, with better wiring, insulation, beer signs, and so on. My long-term plan for the place involves an elaborate garage audio system, with a serious amp, good speakers all over the place, and a CAT5 line to the house that will provide access to the music collection on my file server. However, my long-term garage-upgrade plan also includes certain items that have higher priority— like, say, a source of heat— and I have been working on those items first. In the meantime, I needed to be able to listen to The Atomic Bitchwax at top volume, and I didn’t want to spend any money on temporary measures. One afternoon, I scavenged up the gear to make an extremely loud four-speaker setup. Here’s how.
I had a pretty serious boombox already, in the form of the 92-pound Turbo II Junkyard Boogaloo Boombox that I built out of plywood and car parts a few years back (go to the Murilee’s Greatest Hits page for the whole Junkyard Boogaloo Boombox saga). It had been just the thing for tailgate parties at Oakland A’s games, but the battery I’d scavenged out of a junkyard-bound Tercel in 2006 had lost the ability to take a charge by the time I hauled it to Denver, and it would be an all-weekend thrash to dismantle the thing and replace the battery. Hmmm… how to solve that problem today?
Easy— just add a battery charger to the crap sitting atop my pinball machine restoration project.
The Junkyard Boogaloo Boombox charges via this PVC-pipe-based adapter that plugs into one of the cigarette lighters. The charging adapter was never meant to be used in a permanent setup, but it works.
OK, so the battery charger leads clamp onto the charging adapter and the boombox now has Wanky the Safety Cat™ approval (provided I remember to unplug the battery charger when not in use).
At that point, I had music… but the junkyard-correct Chevy Beretta cassette deck and ’93 Mercury Grand Marquis 6x9s didn’t deliver enough thump for my favorite Ice-T tracks. How can I improve the situation without leaving the garage?
The cassette and 8-track players were hardwired in and it would be a supreme pain in the ass to add more amps and speakers to them, but the Junkyard Boogaloo Boombox features a wired FM modulator to allow the use of external sound sources through the cassette deck. That means I can use the same iPod I use for the LeMons Macho Man penalty… and it also means that the signal from the iPod can be split and fed into another means of amplification.
From my days in the industro-noise band Murilee Arraiac, hooking up shortwave radios through chains of OD-1 overdrive pedals and so forth, I have every imaginable audio-cable adapter. Putting a one-into-two 1/8″ jack adapter on the iPod was easy, and led to…
…this 900 MHz audio transmitter, which sends its signal to…
…this pair of RCA wireless stereo speakers, which I got at a yard sale and had been storing with a lot of other random crap in a box for quite a while. Every bit of this gear was available right there in the garage. It’s what the Murilee Martin Lifestyle Brand™ refers to as Ghetto Surround Sound 4.0™.
I had to do a little rearranging of power outlets to feed everything, but it all sorted out in typical garage-octopus fashion.
So now I can crank up the Gotan Project loud enough to share with the whole neighborhood, and I didn’t have to buy anything. Wanky approves!

9 - Field Expedient Garage Sound System - Pictures courtesy of Phillip 'Wanky the Safety Cat' Greden 1 - Field Expedient Garage Sound System - Pictures courtesy of Phillip 'Wanky the Safety Cat' Greden 2 - Field Expedient Garage Sound System - Pictures courtesy of Phillip 'Wanky the Safety Cat' Greden 3 - Field Expedient Garage Sound System - Pictures courtesy of Phillip 'Wanky the Safety Cat' Greden 4 - Field Expedient Garage Sound System - Pictures courtesy of Phillip 'Wanky the Safety Cat' Greden 5 - Field Expedient Garage Sound System - Pictures courtesy of Phillip 'Wanky the Safety Cat' Greden 6 - Field Expedient Garage Sound System - Pictures courtesy of Phillip 'Wanky the Safety Cat' Greden 7 - Field Expedient Garage Sound System - Pictures courtesy of Phillip 'Wanky the Safety Cat' Greden 8 - Field Expedient Garage Sound System - Pictures courtesy of Phillip 'Wanky the Safety Cat' Greden 11 - Field Expedient Garage Sound System - Pictures courtesy of Phillip 'Wanky the Safety Cat' Greden 10 - Field Expedient Garage Sound System - Pictures courtesy of Phillip 'Wanky the Safety Cat' Greden 12 - Field Expedient Garage Sound System - Pictures courtesy of Phillip 'Wanky the Safety Cat' Greden 13 - Field Expedient Garage Sound System - Pictures courtesy of Phillip 'Wanky the Safety Cat' Greden Zemanta Related Posts Thumbnail ]]>
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Next-Gen M3 Kicks Up Its Heels, Cackles http://www.thetruthaboutcars.com/2011/11/next-gen-m3-kicks-up-its-heels-cackles/ http://www.thetruthaboutcars.com/2011/11/next-gen-m3-kicks-up-its-heels-cackles/#comments Tue, 22 Nov 2011 18:50:32 +0000 http://www.thetruthaboutcars.com/?p=419606

With engine management technologies creating ever-more refined, well-behaved engines, the snap-crackle-pop overrun at the beginning of this video is an increasingly rare throwback to the time when men were men and engines could blow up at any second. Sure, such playfulness will probably be managed out of existence by the time the F30 M3 hits dealerships, but it seems like a good omen for the M3′s return to six-cylinder power. In fact, it might even be possible that the backfire heard here has something to do with the electric turbocharger that’s rumored to give the new M3 lag-free turbo performance… but then you’d probably be a better judge of that than I.

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