Lightweight pulley wow - Page 15 - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

xjohnx · 08-30-2012, 01:07 PM

Quote:

Originally Posted by jpit

You torque it to 14.5 lbs and then turn it another 90 degrees. Comes out to about 95 lbs.

Please, no.

Per Perrin's instructions, the correct procedure is:

Quote:

Apply engine oil to crankshaft pulley bolt seat and threads. Tighten bolt to 33ft-lbs. Taking note of angle, tighten bolt to 94ft-lbs. During this final tightening, bolt should have tightened more than 45 degrees. If tightening angle is less than 45 degrees, replace bolt.

jpit · 08-30-2012, 02:21 PM

The BRZ engine manual states that you tightened the crank bolt to 14.8 lbs and then turn another 90 degrees.

neutron256 · 08-30-2012, 02:51 PM

Quote:

Originally Posted by VSGTS14

driveshaft is actually easier to install in my opinion, i've dropped my sti's before. it slides in one end, couple silly looking nuts/bolts for the diff connection.

with that in mind, i'll be buying perrin's pulley. anything agency power is garbage (vivid racing).

I've never changed a driveshaft, but I don't imagine it's all that hard. You do however need to get the car up in the air, and that alone raises the level of difficulty for your beginner mechanics.

xjohnx · 08-30-2012, 03:46 PM

Quote:

Originally Posted by jpit

The BRZ engine manual states that you tightened the crank bolt to 14.8 lbs and then turn another 90 degrees.

It also assumes you're using the crankshaft pulley removal tool. Not many people are.

mike2100 · 08-30-2012, 05:31 PM

Quote:

Originally Posted by Ozzy

How is the daily drive-ability with lightweight crank pulley? Do the revs fall to quickly and require rev matching for downshifting?

It's fine, not that big of a difference really

JoeBoxer · 09-01-2012, 11:06 AM

I put the Perrin pulley on my car yesterday, not sure if its because I have an auto or not but I probably wouldn't buy it again. Manual cars may "feel" a little better but I honestly can't tell much difference.

travace · 09-01-2012, 11:30 AM

its just sitting here staring at me.poking its little face out the box as if to say HELLOOOO im over here dont you want to start using me ?

hopefully i can get some help on the install from some mechanic types i know real soon

kwood9000 · 09-01-2012, 06:04 PM

Quote:

Originally Posted by JoeBoxer

I put the Perrin pulley on my car yesterday, not sure if its because I have an auto or not but I probably wouldn't buy it again. Manual cars may "feel" a little better but I honestly can't tell much difference.

Might notice more of a difference when using the paddle shifters.

neutron256 · 09-01-2012, 08:41 PM

Quote:

Originally Posted by JoeBoxer

I put the Perrin pulley on my car yesterday, not sure if its because I have an auto or not but I probably wouldn't buy it again. Manual cars may "feel" a little better but I honestly can't tell much difference.

Quote:

Originally Posted by kwood9000

Might notice more of a difference when using the paddle shifters.

I agree I have an AT and I noticed th difference right away, but I pretty much always drive in Manual mode.

zoomzoomers · 09-01-2012, 08:53 PM

So you guys with AT's is the pulley worth while? I ask because I'll need to buy the pulley tool (costs $50) to install it. Due to the added cost of the tool, plus the hassle, I'm on the fence on buying it. Would like your opinions on it.

carbonBLUE · 09-01-2012, 08:58 PM

Quote:

Originally Posted by zoomzoomers

So you guys with AT's is the pulley worth while? I ask because I'll need to buy the pulley tool (costs $50) to install it. Due to the added cost of the tool, plus the hassle, I'm on the fence on buying it. Would like your opinions on it.

Think of it this way, charge people 5 bucks to use the wrench + majic = profit?

neutron256 · 09-01-2012, 09:26 PM

Quote:

Originally Posted by zoomzoomers

So you guys with AT's is the pulley worth while? I ask because I'll need to buy the pulley tool (costs $50) to install it. Due to the added cost of the tool, plus the hassle, I'm on the fence on buying it. Would like your opinions on it.

Personally I think it's very worth it. And if you don't care about keeping the tool you could always resell it. I bet you would have no problem finding a buyer given the number of people on here who have asked to borrow/buy mine at a discounted price.

Celica00 · 09-07-2012, 06:04 PM

instead of starting a new pulley thread.. after installing the perrin pulley my est. mpg went from 31-32 to 27-28. is that happening to anyone else? this is the only mod on my car so far so i'm guessing thats the culprit

mike2100 · 09-07-2012, 06:11 PM

Quote:

Originally Posted by Celica00

instead of starting a new pulley thread.. after installing the perrin pulley my est. mpg went from 31-32 to 27-28. is that happening to anyone else? this is the only mod on my car so far so i'm guessing thats the culprit

Oh and how do you think a lighter weight pulley is causing your engine to consume more fuel?

08-30-2012, 02:21 PM	#198
jpit Senior Member Join Date: Jun 2012 Drives: Subaru BRZ Location: Port Angeles, WA Posts: 338 Thanks: 24 Thanked 234 Times in 86 Posts Mentioned: 22 Post(s) Tagged: 1 Thread(s)	The BRZ engine manual states that you tightened the crank bolt to 14.8 lbs and then turn another 90 degrees. Last edited by jpit; 08-30-2012 at 02:34 PM.

09-01-2012, 08:53 PM	#206
zoomzoomers Senior Member Join Date: Nov 2011 Drives: 2013 Subaru SWP BRZ Limited 6AT Location: Darkside Posts: 1,862 Thanks: 526 Thanked 305 Times in 207 Posts Mentioned: 9 Post(s) Tagged: 0 Thread(s)	So you guys with AT's is the pulley worth while? I ask because I'll need to buy the pulley tool (costs $50) to install it. Due to the added cost of the tool, plus the hassle, I'm on the fence on buying it. Would like your opinions on it. __________________ Man Law#17:A man in the company of a hot, seductively dressed, woman MUST remain sober enough to fight! MODS: AVO tubes + filter, Cusco (F) strut brace w/ MC brace, Perrin CBE, Subaru OEM trunk tray, Grimmspeed front license re-locator & hood struts and Beatsonic rear cam.

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09-01-2012, 11:06 AM	#202
JoeBoxer Senior Member Join Date: Jul 2012 Drives: Whiteout FR-S Location: Arkansas Posts: 4,154 Thanks: 1,666 Thanked 1,627 Times in 997 Posts Mentioned: 72 Post(s) Tagged: 0 Thread(s)	I put the Perrin pulley on my car yesterday, not sure if its because I have an auto or not but I probably wouldn't buy it again. Manual cars may "feel" a little better but I honestly can't tell much difference.

09-07-2012, 06:04 PM	#209
Celica00 Senior Member Join Date: Sep 2012 Drives: 86 Location: utah Posts: 1,156 Thanks: 842 Thanked 798 Times in 434 Posts Mentioned: 8 Post(s) Tagged: 2 Thread(s)	instead of starting a new pulley thread.. after installing the perrin pulley my est. mpg went from 31-32 to 27-28. is that happening to anyone else? this is the only mod on my car so far so i'm guessing thats the culprit

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