Post Exhaust install - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

itsjustdavep · 09-25-2015, 06:58 PM

Hoping its just something loose. but im getting the massive shake/rattle you'll see below whenever my AC is on, and whenever i come off the throttle.

ive read its possibly the throwout bearing?

[ame="https://www.youtube.com/watch?v=unTe6RwqQTE"]https://www.youtube.com/watch?v=unTe6RwqQTE[/ame]

itsjustdavep · 09-25-2015, 07:02 PM

You can hear it better here. [ame="https://www.youtube.com/watch?v=XIUybrx3SHg"]https://www.youtube.com/watch?v=XIUybrx3SHg[/ame]

BirdTRD · 09-25-2015, 07:28 PM

What exhaust components did you just install? Sounds like you need to get back under there and recheck everything. Either something was left loose like you said or you don't have proper clearance around the new exhaust parts.

itsjustdavep · 09-25-2015, 07:39 PM

Quote:

Originally Posted by BirdTRD

What exhaust components did you just install? Sounds like you need to get back under there and recheck everything. Either something was left loose like you said or you don't have proper clearance around the new exhaust parts.

so installed my tomei header myself a month ago. no noise.

got my tomei OP and FP installed by Circuit Motorsports two weeks ago. noise started but i didnt think anything of it.

last friday installed my muffle delete. noise got LOUD under decel.

but it gets BAD when i turn my AC on so im lost

BirdTRD · 09-25-2015, 07:48 PM

My guess would be at the overpipe. Not a lot of clearance there. Did you loosen your motor mount from the sub frame to jack up the motor when you installed the OP? Tighten it back down to spec? I think the AC and muffler delete are just amplifying the real problem, not the cause of it. Pull the OP and front pipe back off if you have to and look for signs of rubbing.

itsjustdavep · 09-25-2015, 07:49 PM

Quote:

Originally Posted by BirdTRD

My guess would be at the overpipe. Not a lot of clearance there. Did you loosen your motor mount from the sub frame to jack up the motor when you installed the OP? Tighten it back down to spec? I think the AC and muffler delete are just amplifying the real problem, not the cause of it. Pull the OP and front pipe back off if you have to and look for signs of rubbing.

I had a shop do the install my floor jack wouldn't go high enough for me to do the OP install myself. guess I'm gonna have to bring it back to them

BirdTRD · 09-25-2015, 08:02 PM

Yeah sorry, I missed that part. Definitely take it back and have them check it out cause whatever it is, it ain't right! But I'll bet a dollar it's related to the OP/FP install.

BirdTRD · 09-25-2015, 08:12 PM

Isn't @Circuit Motorsports a vendor on here? I'm sure they would be more than happy to take a look at it!

itsjustdavep · 09-25-2015, 08:15 PM

Quote:

Originally Posted by BirdTRD

Isn't @Circuit Motorsports a vendor on here? I'm sure they would be more than happy to take a look at it!

I COULDN'T FIGURE OUT HOW TO TAG THEM. OMG THANK YOU LOL

itsjustdavep · 09-26-2015, 02:28 PM

Ok so. Got underneath. Retightened everything to spec. Left my shields off and drove around. Still hear the noise. But only when I come off throttle. Could it be a massive back pressure surge? I'm still running the stock midpipe

itsjustdavep · 09-26-2015, 02:37 PM

I think I found the issue. Resonator sitting practically inside the tunnel. Might this be the problem?? Name: uploadfromtaptalk1443292676724.jpg
Views: 593
Size: 335.6 KB

Name: uploadfromtaptalk1443292676724.jpg
Views: 593
Size: 335.6 KB

FRSBRZGT86FAN · 09-26-2015, 03:07 PM

Quote:

Originally Posted by itsjustdavep

I think I found the issue. Resonator sitting practically inside the tunnel. Might this be the problem??Attachment 121202

Most definitely adjust it if possible, otherwise I would put some sort of High temp rubber or dampening between the tunnel and resonator

itsjustdavep · 09-26-2015, 04:04 PM

Quote:

Originally Posted by FRSBRZGT86FAN

Most definitely adjust it if possible, otherwise I would put some sort of High temp rubber or dampening between the tunnel and resonator

Demon noises have subsided! Thanks everyone

Circuit Motorsports · 09-26-2015, 05:54 PM

If you are still having issues or want us to take a look at it just give us a call and we can schedule you in.

We normally take any car we work on for a road test before giving it back to the customer so if this was an issue that wasn't noticeable at the time or we didn't see/hear we apologize! If this arose after it left our shop, or just got more noticeable over time the best thing to do is just let us know so we can try and fix it for you.

Either way let us know and we'll be happy to help!

09-25-2015, 06:58 PM	#1
itsjustdavep Senior Member Join Date: Jun 2014 Drives: Asphalt Scion FR-S Location: Orlando, FL Posts: 196 Thanks: 33 Thanked 34 Times in 29 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Post Exhaust install Hoping its just something loose. but im getting the massive shake/rattle you'll see below whenever my AC is on, and whenever i come off the throttle. ive read its possibly the throwout bearing? [ame="https://www.youtube.com/watch?v=unTe6RwqQTE"]https://www.youtube.com/watch?v=unTe6RwqQTE[/ame] __________________ 2013 Asphalt HRI Tuned-K&N DropIn-Tomei UEL-Tomei OP-Invidia FP-Nameless Muffled Trackpipe...and corn

09-25-2015, 07:02 PM	#2
itsjustdavep Senior Member Join Date: Jun 2014 Drives: Asphalt Scion FR-S Location: Orlando, FL Posts: 196 Thanks: 33 Thanked 34 Times in 29 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	You can hear it better here. [ame="https://www.youtube.com/watch?v=XIUybrx3SHg"]https://www.youtube.com/watch?v=XIUybrx3SHg[/ame] __________________ 2013 Asphalt HRI Tuned-K&N DropIn-Tomei UEL-Tomei OP-Invidia FP-Nameless Muffled Trackpipe...and corn

09-26-2015, 02:28 PM	#10
itsjustdavep Senior Member Join Date: Jun 2014 Drives: Asphalt Scion FR-S Location: Orlando, FL Posts: 196 Thanks: 33 Thanked 34 Times in 29 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Ok so. Got underneath. Retightened everything to spec. Left my shields off and drove around. Still hear the noise. But only when I come off throttle. Could it be a massive back pressure surge? I'm still running the stock midpipe __________________ 2013 Asphalt HRI Tuned-K&N DropIn-Tomei UEL-Tomei OP-Invidia FP-Nameless Muffled Trackpipe...and corn

09-26-2015, 02:37 PM	#11
itsjustdavep Senior Member Join Date: Jun 2014 Drives: Asphalt Scion FR-S Location: Orlando, FL Posts: 196 Thanks: 33 Thanked 34 Times in 29 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	I think I found the issue. Resonator sitting practically inside the tunnel. Might this be the problem?? __________________ 2013 Asphalt HRI Tuned-K&N DropIn-Tomei UEL-Tomei OP-Invidia FP-Nameless Muffled Trackpipe...and corn

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09-26-2015, 05:54 PM	#14
Circuit Motorsports Senior Member Join Date: Jan 2012 Drives: 2013 Subaru BRZ Location: Orlando, FL Posts: 4,353 Thanks: 294 Thanked 495 Times in 259 Posts Mentioned: 35 Post(s) Tagged: 2 Thread(s)	If you are still having issues or want us to take a look at it just give us a call and we can schedule you in. We normally take any car we work on for a road test before giving it back to the customer so if this was an issue that wasn't noticeable at the time or we didn't see/hear we apologize! If this arose after it left our shop, or just got more noticeable over time the best thing to do is just let us know so we can try and fix it for you. Either way let us know and we'll be happy to help!

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