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03-25-2010, 08:22 PM
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#1 | |||
     
Drives: '10 LT RS A6 & '04 Acura RSX Type S Join Date: Oct 2009
Location: Florida
Posts: 1,544
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Wulf's MRT V1X2 mod
As you may know, I have had the MRT V1 axle back exhaust for a while now. I've been very happy with the performance of the system... with one exception. As the engine climbs through the rev range, there is a "burble" between 3-4K RPM. My experience tells me that this indicates an issue with back pressure. I have found a cure. Total cost $210 parts and labor.
I replaced the stock resonators...   with a second set of AR25s (hence the "X2" added to the title). See below:   Now comes the interesting part. When we started the car after the installation, it was running like dog poop! I thought "Oh great! This suxs!" Here's a vid of that moment.. I decided to go ahead and give the system a little time so I drove it around on a few errands in town. After about 70 miles and 7-8 key cycles (and 4 passes at the track last night), it's better than ever! Check this out: The tone is a bit more mellow and the drone under load is mostly still there but moved up in the rev range. Up above where you run during "normal" driving. You can still "growl" at passing Crustangs but it's quiet in the neighborhood! Just what I was hoping for! I do believe the ECU takes a bit of driving between mods to get "acclimate" to the changes. I believe this mod shows that as a fact very clearly. Here's the track video: Here's a little "in cockpit" vid I took coming home from the track. If you can keep your foot out of the gas, it's as quiet as the OEM exhaust. As you can see, I have a problem with that! (To be added when upload in HD is completed ) I also did some data logging but I'm still reviewing the data and trying to get it posted as "useful" data. More to follow.
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 Last edited by Beauwulf; 03-25-2010 at 08:50 PM. |
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03-25-2010, 08:28 PM
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#2 |
   Drives: 2010 1LT RS Rally Yellow Join Date: Oct 2009
Location: southern Illinois
Posts: 2,973
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You linked to the same vid twice, and I don't see the in cabin or track vid. Might be my browser..I look again.
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03-25-2010, 08:32 PM
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#3 |
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Drives: '10 LT RS A6 & '04 Acura RSX Type S Join Date: Oct 2009
Location: Florida
Posts: 1,544
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Ops... fixed it. The other 2 vids are still uploading... I'll put them in as soon as they're done and processed by YouTube.
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03-25-2010, 08:35 PM
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#4 |
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PWA Relapse
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Sounds nice so far. Can't wait to hear the other two videos.
- X
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2017 1LT/RS A8 Hyper Blue Metallic  |
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03-25-2010, 08:44 PM
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#5 |
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Drives: '10 LT RS A6 & '04 Acura RSX Type S Join Date: Oct 2009
Location: Florida
Posts: 1,544
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The track run is available but they are still processing it so it's in "letterbox" ATM.
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03-25-2010, 08:45 PM
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#6 |
   Drives: 2010 2SS IOM L99 Join Date: Jan 2010
Location: LOUISVILLE,KY..
Posts: 7,545
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very nice.
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03-25-2010, 08:55 PM
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#7 |
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PWA Relapse
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Just watched the track video. Sounds good. Any change in 1/4 mile time (for better or worse)?
- X
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2017 1LT/RS A8 Hyper Blue Metallic |
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03-25-2010, 08:58 PM
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#8 |
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Drives: '10 LT RS A6 & '04 Acura RSX Type S Join Date: Oct 2009
Location: Florida
Posts: 1,544
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Pretty good for the conditions. DA about 250-350, temps 65F, had 3/4 tank of 89 octane it it so, 14.30@ 97.xx isn't too bad.
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03-25-2010, 09:08 PM
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#9 | |
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PWA Relapse
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Quote:
- X
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2017 1LT/RS A8 Hyper Blue Metallic |
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03-25-2010, 11:53 PM
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#10 |
Drives: 2010 Camaro LS Join Date: Sep 2009
Location: Canada
Posts: 1,911
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sounds great!!
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03-25-2010, 11:56 PM
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#11 |
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:chevy:
Drives: 2LT/RS Join Date: Jun 2008
Location: Toronto
Posts: 13,035
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HOLY ****! that sounds GREAT!
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CAMARO
Consult your doctor before taking Camaro Side effects include Sudden increase in Heart Rate, Insomnia and occasional hallucinations If you experience Permagrin exceeding 4 hours after taking Camaro, seek immediate Camaro5 Help CAMARO Bringing excitment back into the Garage |
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03-26-2010, 09:04 AM
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#12 |
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Retired
Drives: 2010 Camaro RS V6 #1301 DOB 3/23/09 Join Date: Aug 2009
Location: Ithaca NY
Posts: 2,563
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Sounds like V2 lol.
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03-26-2010, 11:22 AM
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#13 |
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NM HT5
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so is v1 bad for the car?
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03-26-2010, 11:33 AM
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#14 | |
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Red Brick of Vengeance!
Drives: 12 Second Brick Join Date: Jun 2009
Location: at my pulpit
Posts: 7,745
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Quote:
No...
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