DIY - Lightweight crank pulley install (Perrin) - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

justinco · 04-08-2017, 01:56 PM

I'm sure there is a manual write up of this, but I just installed the Perrin lightweight crank pulley and made a DIY video. Link to the pulley I bought can be found in the video description. Hope this is helpful!

[ame="https://www.youtube.com/watch?v=PMAw9rScO60"]Perrin lightweight crank pulley BRZ install - YouTube[/ame]

haloterence · 04-25-2017, 02:37 AM

The funny thing is that I had my pulley for over 4 years and never got around to install it. But, after watching your vid gave me the confidence to do it. Wish I had done this a long time ago. It really made a difference on the feel of the drive-train. Thanks man!

justinco · 04-25-2017, 10:13 AM

Quote:

Originally Posted by haloterence

The funny thing is that I had my pulley for over 4 years and never got around to install it. But, after watching your vid gave me the confidence to do it. Wish I had done this a long time ago. It really made a difference on the feel of the drive-train. Thanks man!

Wow that's a long time hah! Glad the video was able to help out and enjoy the "new" pulley

allowe · 04-25-2017, 03:47 PM

Do you personally feel a difference?

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justinco · 04-25-2017, 04:17 PM

Quote:

Originally Posted by allowe

Do you personally feel a difference?

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Not a huge difference. My car already had engine bolt-ons and tune before I did the pulley, so not quite as noticeable for me. Or maybe i was just used to its feel from having it on my FRS.

allowe · 04-25-2017, 05:25 PM

Quote:

Originally Posted by justinco

Not a huge difference. My car already had engine bolt-ons and tune before I did the pulley, so not quite as noticeable for me. Or maybe i was just used to its feel from having it on my FRS.

Yea I got intake header oft stage 2 uel tune and exhaust. I'm trying to squeeze as much as possible

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justinco · 05-10-2017, 01:50 PM

Quote:

Originally Posted by allowe

Yea I got intake header oft stage 2 uel tune and exhaust. I'm trying to squeeze as much as possible

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The lightweight pulley is definitely a complimentary upgrade then. Inexpensive and fairly simple installation process.

nikitopo · 05-10-2017, 02:29 PM

Very nice video. I like lightweight pulleys and I believe they are one of the best mods for these cars. They are also funny as they always cause long debates in forums. A few additional notes. You'll feel a difference only if you accelerate your car hard. Otherwise, they are not doing anything apart from removing some inertia from the engine.

reeves · 05-10-2017, 07:02 PM

Did you do the install while the engine is warmed up or cold? I've read conflicting posts on which would make it easier to take the crank pulley bolt off. Gonna replace the belt, I figured this is a good chance to go with an aftermarket pulley.

justinco · 05-10-2017, 07:31 PM

Quote:

Originally Posted by reeves

Did you do the install while the engine is warmed up or cold? I've read conflicting posts on which would make it easier to take the crank pulley bolt off. Gonna replace the belt, I figured this is a good chance to go with an aftermarket pulley.

Pretty sure I did it cold on both my cars.

Somerandom18 · 05-10-2017, 08:17 PM

Don't bolts slightly expand when hot making them harder to remove? I've done it once when cold and then again when hot. Hot was markedly more difficult. Had to put the jack bar on my breaker bar and even that almost didn't work.

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justinco · 05-22-2017, 04:35 PM

Quote:

Originally Posted by Somerandom18

Don't bolts slightly expand when hot making them harder to remove? I've done it once when cold and then again when hot. Hot was markedly more difficult. Had to put the jack bar on my breaker bar and even that almost didn't work.

Sent from my Pixel XL using Tapatalk

Yea, they do. I'm not sure if that crank bolt would get hot enough for it to matter though.

04-08-2017, 01:56 PM	#1
justinco btr.life Join Date: Aug 2015 Drives: 2022 GR86 Location: Arizona Posts: 1,099 Thanks: 662 Thanked 1,094 Times in 491 Posts Mentioned: 23 Post(s) Tagged: 0 Thread(s)	DIY - Lightweight crank pulley install (Perrin) I'm sure there is a manual write up of this, but I just installed the Perrin lightweight crank pulley and made a DIY video. Link to the pulley I bought can be found in the video description. Hope this is helpful! [ame="https://www.youtube.com/watch?v=PMAw9rScO60"]Perrin lightweight crank pulley BRZ install - YouTube[/ame] __________________ 2022 Toyota GR86 - The BTR Garage 1994 BMW 325is \| 2013 Scion FRS \| 2017 Subaru BRZ

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04-25-2017, 02:37 AM	#2
haloterence Senior Member Join Date: May 2012 Drives: 2013 whiteout fr-s Location: Bellflower, CA Posts: 104 Thanks: 25 Thanked 61 Times in 31 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	The funny thing is that I had my pulley for over 4 years and never got around to install it. But, after watching your vid gave me the confidence to do it. Wish I had done this a long time ago. It really made a difference on the feel of the drive-train. Thanks man!

04-25-2017, 03:47 PM	#4
allowe Senior Member Join Date: Sep 2016 Drives: FR-S Location: mississauga Posts: 576 Thanks: 227 Thanked 122 Times in 89 Posts Mentioned: 7 Post(s) Tagged: 0 Thread(s)	Do you personally feel a difference? Sent from my iPhone using Tapatalk

05-10-2017, 02:29 PM	#8
nikitopo Senior Member Join Date: Mar 2014 Drives: '15 BRZ RA Location: Greece Posts: 3,787 Thanks: 2,416 Thanked 1,944 Times in 1,261 Posts Mentioned: 29 Post(s) Tagged: 0 Thread(s)	Very nice video. I like lightweight pulleys and I believe they are one of the best mods for these cars. They are also funny as they always cause long debates in forums. A few additional notes. You'll feel a difference only if you accelerate your car hard. Otherwise, they are not doing anything apart from removing some inertia from the engine.

05-10-2017, 07:02 PM	#9
reeves Senior Member Join Date: Jul 2012 Drives: BRZ Location: ATL, GA Posts: 1,021 Thanks: 289 Thanked 397 Times in 265 Posts Mentioned: 13 Post(s) Tagged: 0 Thread(s)	Did you do the install while the engine is warmed up or cold? I've read conflicting posts on which would make it easier to take the crank pulley bolt off. Gonna replace the belt, I figured this is a good chance to go with an aftermarket pulley.

05-10-2017, 08:17 PM	#11
Somerandom18 Senior Member Join Date: Sep 2016 Drives: 2017 manual BRZ Location: USA Posts: 467 Thanks: 322 Thanked 178 Times in 111 Posts Mentioned: 2 Post(s) Tagged: 0 Thread(s)	Don't bolts slightly expand when hot making them harder to remove? I've done it once when cold and then again when hot. Hot was markedly more difficult. Had to put the jack bar on my breaker bar and even that almost didn't work. Sent from my Pixel XL using Tapatalk

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