NEW Motordyne Exhaust, Titanium and Dual Setups!
?
#573
07-29-2009, 02:32 PM
#574
07-30-2009, 04:46 AM
<object width="560" height="340"><param name="movie" value="http://www.youtube.com/v/WQKef2GxHYs&hl=en&fs=1&rel=0"></param><param name="allowFullScreen" value="true"></param><param name="allowscriptaccess" value="always"></param><embed src="http://www.youtube.com/v/WQKef2GxHYs&hl=en&fs=1&rel=0" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="560" height="340"></embed></object>
Here's the before and after video of the dyno runs. It's the first video I've ever edited, so excuse the noobiness
. I'll post up the dyno chart after work tomorrow, and try to get some more vids of the exhaust when I have some free time.
Here's the before and after video of the dyno runs. It's the first video I've ever edited, so excuse the noobiness
. I'll post up the dyno chart after work tomorrow, and try to get some more vids of the exhaust when I have some free time.
#575
07-30-2009, 07:19 AM
#578
07-31-2009, 03:31 AM
Haha thanks guys, iMovie made it kinda simple.
As for cabin noise, like I posted earlier, there's a loud drone from 2-2.5k RPMs. But like Tony explained, the exhaust just needs to be broken in, and after a couple hundred more miles, the noise should decrease. After you get past those rpms, and cruise at about 70 or so, you really can't hear the exhaust much unless you step on it.
As for cabin noise, like I posted earlier, there's a loud drone from 2-2.5k RPMs. But like Tony explained, the exhaust just needs to be broken in, and after a couple hundred more miles, the noise should decrease. After you get past those rpms, and cruise at about 70 or so, you really can't hear the exhaust much unless you step on it.
#582
08-01-2009, 12:19 AM
<object width="560" height="340"><param name="movie" value="http://www.youtube.com/v/KJRLfX7VOqk&hl=en&fs=1&rel=0"></param><param name="allowFullScreen" value="true"></param><param name="allowscriptaccess" value="always"></param><embed src="http://www.youtube.com/v/KJRLfX7VOqk&hl=en&fs=1&rel=0" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="560" height="340"></embed></object>
Here's a short clip of revving my car
Btw, the rattling is just my license plate....I gotta tighten it up.
Edit: Here's the dyno sheet from before. Note the 98.38 degree heat it was doing at the time, lol.
Here's a short clip of revving my car
Btw, the rattling is just my license plate....I gotta tighten it up.
Edit: Here's the dyno sheet from before. Note the 98.38 degree heat it was doing at the time, lol.
Last edited by Silencer_0; 08-01-2009 at 12:32 AM.
#583
08-01-2009, 02:27 AM
Registered User
<object width="560" height="340"><param name="movie" value="http://www.youtube.com/v/KJRLfX7VOqk&hl=en&fs=1&rel=0"></param><param name="allowFullScreen" value="true"></param><param name="allowscriptaccess" value="always"></param><embed src="http://www.youtube.com/v/KJRLfX7VOqk&hl=en&fs=1&rel=0" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="560" height="340"></embed></object>
Here's a short clip of revving my car
Btw, the rattling is just my license plate....I gotta tighten it up.
Edit: Here's the dyno sheet from before. Note the 98.38 degree heat it was doing at the time, lol.
Here's a short clip of revving my car
Btw, the rattling is just my license plate....I gotta tighten it up.
Edit: Here's the dyno sheet from before. Note the 98.38 degree heat it was doing at the time, lol.
#584
08-01-2009, 08:29 AM
Those are great gains from just exhaust. Do you have anything else on the car? Btw, if your dynos are SAE corrected then the high temp wont' make much difference.
The rattling might be from the license plate like you mentioned or from the heatshield on the passenger side directly above the muffler. Sounds pretty good though, but you should take a vid outside of the garage though. Curious to see how different it sounds for the original MD exhaust.
The rattling might be from the license plate like you mentioned or from the heatshield on the passenger side directly above the muffler. Sounds pretty good though, but you should take a vid outside of the garage though. Curious to see how different it sounds for the original MD exhaust.
#585
08-01-2009, 11:11 AM
On our car, temperature has more of an effect than SAE corrections can account for.
Air inlet temperature has a significant effect on ECU spark timing and A/F ratio.
The plot below shows my G35 on the dyno. Note, the only variable here is air inlet temperature.
As air inlet temperature goes up, power goes down rapidly. And this plot is with the SAE correction held constant.
What this plot shows is how the ECU reacts to changing air inlet temperature.
Air inlet temperature has a significant effect on ECU spark timing and A/F ratio.
The plot below shows my G35 on the dyno. Note, the only variable here is air inlet temperature.
As air inlet temperature goes up, power goes down rapidly. And this plot is with the SAE correction held constant.
What this plot shows is how the ECU reacts to changing air inlet temperature.