Perrin Engine Mount concerns (UPDATED) - Page 3 - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

SuperTom · 02-01-2020, 12:10 PM

Quote:

Originally Posted by StraightOuttaCanadaEh

For those with Perrin engine mounts, did your exhaust develop a nasty rattle? It's super embarrassing, especially in closed spaces like indoor parking lots, people are looking at my car like wtf, something's about to go terribly wrong with that. Is this an exhaust hanger issue, i.e. something that can be mitigated, or does every car with stiffer engine mounts suffer from this? If you've ever heard something metallic roll down the road, like a hub cap or a freakin cooking pot lid, that's what it sounds like.

Did you ever get this resolved??

I remember years ago I put Solid MM on my 3000gt. My uncle who is a great mechanic said they really had to be torqued down a lot. I had them on tight but not tight enough. Everything was great after torqueing them down with a breaker bar.

StraightOuttaCanadaEh · 02-01-2020, 03:54 PM

Quote:

Originally Posted by SuperTom

Did you ever get this resolved??

I remember years ago I put Solid MM on my 3000gt. My uncle who is a great mechanic said they really had to be torqued down a lot. I had them on tight but not tight enough. Everything was great after torqueing them down with a breaker bar.

When I first installed them, the NVH increase was so dramatic that I thought something was wrong so I took it back to the mechanic the next day. He called me back literally an hour after opening saying the car is ready, everything tight, nothing loose. However when you start the engine, there is a very strong initial jolt and I’m thinking that’s what loosened something in the catback. Haven’t gone back yet but I am due for an oil change soon so I’ll ask him to check again. If everything is tight, I’ll get Perrin exhaust hangers and see if that helps.

SuperTom · 02-01-2020, 04:03 PM

Did you happen to notice if the Perrin mounts were lighter than OEM?

StraightOuttaCanadaEh · 02-01-2020, 09:48 PM

Quote:

Originally Posted by SuperTom

Did you happen to notice if the Perrin mounts were lighter than OEM?

what I can do is weigh the OEM mounts and you can get in touch with Perrin meanwhile and see if the can provide you with a weight

SuperTom · 02-02-2020, 07:14 AM

Quote:

Originally Posted by StraightOuttaCanadaEh

what I can do is weigh the OEM mounts and you can get in touch with Perrin meanwhile and see if the can provide you with a weight

That would be great! Im hoping the Perrins are lighter if they are made of aluminum like the description says

StraightOuttaCanadaEh · 02-02-2020, 05:55 PM

Quote:

Originally Posted by SuperTom

That would be great! Im hoping the Perrins are lighter if they are made of aluminum like the description says

1.5 kg is as precise a measurement as I could get. Don’t have one of those small scales. Had to use a foot scale. Stepped on it with the mount and then without, subtracted the difference.

SuperTom · 02-03-2020, 08:36 AM

Quote:

Originally Posted by StraightOuttaCanadaEh

1.5 kg is as precise a measurement as I could get. Don’t have one of those small scales. Had to use a foot scale. Stepped on it with the mount and then without, subtracted the difference.

3.3lbs. Sorry to be a pain was that for one or both?

StraightOuttaCanadaEh · 02-03-2020, 11:17 AM

Quote:

Originally Posted by SuperTom

3.3lbs. Sorry to be a pain was that for one or both?

For one

SuperTom · 02-04-2020, 12:40 PM

Quote:

Originally Posted by StraightOuttaCanadaEh

For one

Perrin got back to me and said listed weight is 5lbs. So could be ~1.5 loss for both.

StraightOuttaCanadaEh · 02-04-2020, 12:51 PM

Quote:

Originally Posted by SuperTom

Perrin got back to me and said listed weight is 5lbs. So could be ~1.5 loss for both.

yeah I figured the difference wouldn't be much. It's a very hefty mount

Jfheisenberg · 06-12-2020, 09:27 PM

Thanks for the info here. I was considering the Perrin Engine mounts as well, but i think im going to go with the STI ones instead.

JD001 · 06-13-2020, 06:41 AM

Quote:

Originally Posted by Jfheisenberg

Thanks for the info here. I was considering the Perrin Engine mounts as well, but i think im going to go with the STI ones instead.

The STi are great!! I love them.. only wish it was my first mod as it made such a difference to the way the car drives... Brilliant!!!

JD001 · 06-13-2020, 06:42 AM

Quote:

Originally Posted by SuperTom

Did you ever get this resolved??

I remember years ago I put Solid MM on my 3000gt. My uncle who is a great mechanic said they really had to be torqued down a lot. I had them on tight but not tight enough. Everything was great after torqueing them down with a breaker bar.

It's always better after a bit of "torquing".. clears the air...

j_motion · 08-10-2020, 03:12 PM

My is exactly the same with the new Perrin engine mount.

There are certain load at idle will make some not so pretty noice.

But once RMP is up it gose away.

I will put the car a bit more after getting tire alignment and see how they are through out the rpm range.

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02-01-2020, 04:03 PM	#31
SuperTom Senior Member Join Date: Feb 2014 Drives: C5, GT-86, '24 Colorado TrailBoss Location: New Castle DE Posts: 1,576 Thanks: 1,682 Thanked 1,049 Times in 582 Posts Mentioned: 6 Post(s)	Did you happen to notice if the Perrin mounts were lighter than OEM?

06-12-2020, 09:27 PM	#39
Jfheisenberg Senior Member Join Date: Jan 2015 Drives: 2015 BRZ Series Blue WRB Location: North Jersey Posts: 830 Thanks: 371 Thanked 206 Times in 157 Posts Mentioned: 2 Post(s)	Thanks for the info here. I was considering the Perrin Engine mounts as well, but i think im going to go with the STI ones instead.

08-10-2020, 03:12 PM	#42
j_motion Member Join Date: Sep 2015 Drives: 14 BRZ Red premium Location: Vancouver BC Posts: 44 Thanks: 1 Thanked 14 Times in 13 Posts Mentioned: 0 Post(s)	My is exactly the same with the new Perrin engine mount. There are certain load at idle will make some not so pretty noice. But once RMP is up it gose away. I will put the car a bit more after getting tire alignment and see how they are through out the rpm range.

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