justinpace

So a few months back i put a racing beat true dual header and the road race mufflers, i decided not to get the presilencers or the y pipe , i had custom pipes made at a local shop, i didnt really notice the ping noises till winter hit cuz my window is up now and i cant hear my actual exhaust as much. I am just curious if there is anything i can do that may help tone it down for now, such as header wrap, painting it with some vht or something along those lines. I plan on going turbo either next summer or winter so i will have a somewhat differnt set up so i am not all that worried just would like to tone it down for in cabin purposes.



Thanks guys

RB_eater

iTrader: (1)

Option #1:Go to your local Autozone or whatever and get a decent quality performance muffler (magnaflow reccomended) and just use it as a pre-silencer. ~100-150$

Option #2: Buy a silencer. Cheaper option but they clog the exhaust system so if possible avoid ramming the gas pedal with one. Most of them a removable so you can just pop it out when you feel for some spirited driving. ~50$

justinpace

sorry if i was not quite clear, the exhaust note is perfect, its the actual pipes i can hear pings in them, and it is coming up through the transmission tunnel and its a not a noise i like to hear standing behind the car u cant really hear them just the nice RB exhaust tone, but go to middle of car and in front u can hear the pinging inside the pipe walls

RX7Tuner.

Are you saying the pipes are knocking against something metal? If your talking about pinging from the engine, you should look at your fuel/timing instead of header heatwrap.

Aaron Cake

iTrader: (1)

NA rotary engines with a set of headers often sound like they are pinging and ringing. It's the nature of the thin walled tubing. RB uses thicker tubing but they also specifically state that the true dual is for road racing only and may be annoying when on the road.

Wrapping in heat wrap may help, and make sure they are not physically banging against anything. But beyond recreating the headers with thicker material, there's not much you can do.

Laying down some Dynamat will help.

SpooledupRacing

So u now hear the "pinging" since it got cold.. sounds more like a timing problem if it only happenes in the cold.. (dense air etc)

here is a video of my car with the Racing beat road race header, silencer, stock mufflers on a s4 n/a

just for sound comparison

<object width="425" height="344"><param name="movie" value="http://www.youtube.com/v/8sCPA1eIbrM&hl=en&fs=1"></param><param name="allowFullScreen" value="true"></param><param name="allowscriptaccess" value="always"></param><embed src="http://www.youtube.com/v/8sCPA1eIbrM&hl=en&fs=1" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="425" height="344"></embed></object>

RB_eater

iTrader: (1)

Also you might want to check that nothing is in the exhaust system. I've seen inside parts of catalytic converters and such falling loose and causing stange noises before.

justinpace

aaron cake is right on track with the problem, its the pipe walls to thin, i have no silencers, no cats, just straight pipes from engine to muffler, i have a racing beat mufflers, and a racing beat header, and straight through 2in pipes... i have always been concious of this problem, could hear it when out of car, but now my window is up, therefore i cant hear my exhuast as much, i hear the ambient noise of the pinging within the walls of the pipes mostly right after the header, then it begins to fade as it goes through, i will buy some cheap *** exhaust wrap and wrap the **** out of it, maybe coat it in some vht first, i will be laying dynamat down this spring thanks to your huge thread arron cake, and if anyone has any other things to fix this via a coverage over the pipes please speak up this is just temp fix until i turbo my 6port arron i am sure ill have plenty of question coming your way when that time comes


but thanks guys for your willingness to help