GReddy Pulley Kit - Page 2 - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

stevo_12v · 01-27-2016, 04:38 AM

Update: they came in today. Getting installed Monday

Binary_fission · 01-27-2016, 04:57 AM

Keep us posted, so only crank pulley and accessories no water and alter pulleys

Sent from my SM-N910T using Tapatalk

stevo_12v · 01-27-2016, 07:41 AM

Quote:

Originally Posted by Binary_fission

Keep us posted, so only crank pulley and accessories no water and alter pulleys

Sent from my SM-N910T using Tapatalk

No crank pulley. Using a Fluidampr instead. Will get a before>after dyno plots on Monday too.

stevo_12v · 02-02-2016, 08:15 AM

Update: Had the pulleys, fluidampr and fan belt installed today

Not much hp 'gain'
Before/After dyno tune of the pulleys(netted a 0.2hp increase from my previous best figure) 183.5hp; ~ 54 hp over stock still on N/A tune, pump gas - NON E85

Not a very cost effective mod for people starting out modding N/A, but it's a worthy mod. Damper makes the engine run very smooth, less shudder/vibration felt going up/down shifts, better response too.

You'll definitely notice the benefit of the damper if you've done the necessary fundamental N/A bolt-on mods; flywheel, final drive, CF driveshaft, light wheels, full exhaust, tune, CAI, manifold spacers, etc

churchx · 02-02-2016, 09:16 AM

Is fluidampr underdriving or like stock CP diameter?

crazyfrenchbiker · 02-02-2016, 12:21 PM

Quote:

Originally Posted by churchx

Is fluidampr underdriving or like stock CP diameter?

Fluiddampr is stock, if you want a dampened under drive, you should look at the ATI pulley.

churchx · 02-02-2016, 12:56 PM

From googled up ATI's are 10% underdrive .. and >2x the weight of stock. :/
So fluidampr is stock sized but at least of similar weight as stock. Decisions, decisions ..

.. and sorry for thread hijacking.

Hawk77FT · 02-03-2016, 07:17 PM

Quote:

Originally Posted by churchx

From googled up ATI's are 10% underdrive .. and >2x the weight of stock. :/
So fluidampr is stock sized but at least of similar weight as stock. Decisions, decisions ..

.. and sorry for thread hijacking.

I don't think the ATI for these engines is underdrive. Also it looks like they are quite pricey for what they are. The weight of the Fluidampr is higher and helps a lot with the balance and vibrations at high speed and RPM. The bearings in this car are fairly thin, so if you want to look after your engine, a pulley with a damper (stock or aftermarket) is the best thing you can do. Lightweight pulleys do fa and do harm more than good!

EDIT: My bad. It is underdriven but I reckon the difference power wise is negligible.

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02-02-2016, 09:16 AM	#19
churchx Senior Member Join Date: Mar 2015 Drives: 2014 GT86 Location: Latvia, Riga Posts: 4,333 Thanks: 696 Thanked 2,085 Times in 1,436 Posts Mentioned: 53 Post(s) Tagged: 1 Thread(s)	Is fluidampr underdriving or like stock CP diameter?

02-02-2016, 12:56 PM	#21
churchx Senior Member Join Date: Mar 2015 Drives: 2014 GT86 Location: Latvia, Riga Posts: 4,333 Thanks: 696 Thanked 2,085 Times in 1,436 Posts Mentioned: 53 Post(s) Tagged: 1 Thread(s)	From googled up ATI's are 10% underdrive .. and >2x the weight of stock. :/ So fluidampr is stock sized but at least of similar weight as stock. Decisions, decisions .. .. and sorry for thread hijacking.

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