Motor Mounts and changing exhaust note from PCD rasp
#1
Motor Mounts and changing exhaust note from PCD rasp
Am I the only one who thinks their engine/exhaust note completely changed after installing stiffer motor mounts? Before when I was on my OEM mounts, I had tons of exhaust rasp from my PCDs.
After installing my 75a Excelerate mounts, it's as if my rasp has nearly completely disappeared from my PCDs and my engine/exhaust sounds much deeper than it did before. I am definitely not complaining. I will take a video of me launching and put it up against my other video of me launching to see what you guys think. I don't think I'm crazy here.
After installing my 75a Excelerate mounts, it's as if my rasp has nearly completely disappeared from my PCDs and my engine/exhaust sounds much deeper than it did before. I am definitely not complaining. I will take a video of me launching and put it up against my other video of me launching to see what you guys think. I don't think I'm crazy here.
#3
Suzuka Master
iTrader: (1)
Engine sound goes deeper for sure. I was amazed and loved it, but not sure about exhaust. I had stock exhaust when I replaced the mounts.
#4
Safety Car
iTrader: (5)
I have some major vibrations and what sounds like an exhaust leak but I retightened everything and upgraded the exhaust bushings. Maybe I need to upgrade some mounts...how are the vibrations? Looking forward to that launch video OP
#5
Suzuka Master
iTrader: (1)
Vibration from where?
Wish you installed mounts during summer, but still, you have 6MT, won't have lot of vibration because of the mounts.
Install them now, by summer it'll settle and after summer, no vibration.
That's what happened on mine and it's AT
Wish you installed mounts during summer, but still, you have 6MT, won't have lot of vibration because of the mounts.
Install them now, by summer it'll settle and after summer, no vibration.
That's what happened on mine and it's AT
#6
Safety Car
iTrader: (5)
Maybe I'll look into some of the 60 series mounts just to firm it up in general. I'm in San Diego so we really don't have a winter haha
#7
Vibrations are bad right now on take off and when A/C or heater is on. This is due to more than just my motor mounts though. I just got a new stage 3 clutch so it's a lot less friendly on take off.
I had an odd exhaust noise and it caused me to drop my whole exhaust. To my surprise, a rock had gotten launched on top of the two pipes and was jumping around making noise.
I had an odd exhaust noise and it caused me to drop my whole exhaust. To my surprise, a rock had gotten launched on top of the two pipes and was jumping around making noise.
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#11
Had a chance to take some videos, albeit not the best quality.
This is my before video launch:
This is after new 75 durometer motor mounts, Spec stage 3+ clutch and 14lb lightweight aluminum flywheel, and 3.7 throttle body calibration (kind of irrelevant, just sharing.)
Cabin sound for lolz:
It's hard to tell a difference in the videos, but in person you can definitely tell. Still getting used to this clutch, it's much different than my old one.
This is my before video launch:
This is after new 75 durometer motor mounts, Spec stage 3+ clutch and 14lb lightweight aluminum flywheel, and 3.7 throttle body calibration (kind of irrelevant, just sharing.)
Cabin sound for lolz:
It's hard to tell a difference in the videos, but in person you can definitely tell. Still getting used to this clutch, it's much different than my old one.
#12
Team Owner
Mounts obviously can't change the exhaust note. It might transfer more engine vibrations and the resulting noise into the cabin which is usually lower in pitch than exhaust.
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