replacing the crank pulley on automatic - Page 3 - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

nikitopo · 08-13-2018, 05:52 PM

Quote:

Originally Posted by humfrz

There were some owners in Japan having issues even with the stock crank pulley, but they had turbo or supercharged cars. It looks to exist a correlation with high load applications. In such cases they even suggest to use the Fluidampr pulley. I had mentioned it before.

mrg666 · 08-13-2018, 05:56 PM

Quote:

Originally Posted by humfrz

I will go drive with my smooth engine instead of getting into another light-pulley fight here. Everybody does whatever they want to their cars. Don't eat too much popcorn before dinner!

nikitopo · 08-13-2018, 05:59 PM

Fight on what? Get a bit serious ... No-one said you did anything wrong.

And by the way, here is the old post:
http://www.ft86club.com/forums/showp...2&postcount=24

Lantanafrs2 · 08-13-2018, 06:51 PM

I was on 93 with header and tune when the motor failed. Spit a rocker at first. Rest of motor was inspected and bearing problem discovered. Toyota was fantastic! I doubt bearings are insufficient for e85 use. Not that much of a load increase.

Lantanafrs2 · 08-13-2018, 06:57 PM

Toyota did me a solid. If it were another brand I'd be fucked.

Lantanafrs2 · 08-13-2018, 06:59 PM

Quote:

Originally Posted by nikitopo

There were some owners in Japan having issues even with the stock crank pulley, but they had turbo or supercharged cars. It looks to exist a correlation with high load applications. In such cases they even suggest to use the Fluidampr pulley. I had mentioned it before.

Reverse the vacuum on these motors (f.i.) and all bets are off.

mrg666 · 08-13-2018, 07:33 PM

Quote:

Originally Posted by Lantanafrs2

Reverse the vacuum on these motors (f.i.) and all bets are off.

Do you know Edelbrock has powertrain warranty and there is not anybody that I know claimed warranty yet. Jackson Racing tracked their cars several seasons already (they won the championship actually two years ago)? There are proper ways of going FI and there are other ways.

ermax · 08-14-2018, 07:20 AM

Load on bearings doesn’t increase when power output increases. Load on bearings increases when starved of oil. Bearings are only there to create the perfect clearance for the oil to create a “bearing”. As long as the oil temps are in range and pressure is good then the bearings never make contact. But throw in a bunch of vibration from something being out of balance and you will potentially wear bearings. I personally would rather stick to a dampened pulley and go with a flywheel to reduce rotating mass. There is more to be had in the flywheel anyways.

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08-13-2018, 05:59 PM	#31
nikitopo Senior Member Join Date: Mar 2014 Drives: '15 BRZ RA Location: Greece Posts: 3,787 Thanks: 2,417 Thanked 1,947 Times in 1,263 Posts Mentioned: 29 Post(s) Tagged: 0 Thread(s)	Fight on what? Get a bit serious ... No-one said you did anything wrong. And by the way, here is the old post: http://www.ft86club.com/forums/showp...2&postcount=24

08-13-2018, 06:51 PM	#32
Lantanafrs2 Senior Member Join Date: Jan 2018 Drives: 2013 frs red Location: South Florida Posts: 3,562 Thanks: 2,568 Thanked 3,126 Times in 1,680 Posts Mentioned: 6 Post(s) Tagged: 1 Thread(s)	I was on 93 with header and tune when the motor failed. Spit a rocker at first. Rest of motor was inspected and bearing problem discovered. Toyota was fantastic! I doubt bearings are insufficient for e85 use. Not that much of a load increase.

08-13-2018, 06:57 PM	#33
Lantanafrs2 Senior Member Join Date: Jan 2018 Drives: 2013 frs red Location: South Florida Posts: 3,562 Thanks: 2,568 Thanked 3,126 Times in 1,680 Posts Mentioned: 6 Post(s) Tagged: 1 Thread(s)	Toyota did me a solid. If it were another brand I'd be fucked.

08-14-2018, 07:20 AM	#36
ermax Senior Member Join Date: Sep 2017 Drives: 2022 BRZ Limited Silver Location: Jacksonville, FL Posts: 2,533 Thanks: 883 Thanked 2,048 Times in 1,190 Posts Mentioned: 68 Post(s) Tagged: 0 Thread(s)	Load on bearings doesn’t increase when power output increases. Load on bearings increases when starved of oil. Bearings are only there to create the perfect clearance for the oil to create a “bearing”. As long as the oil temps are in range and pressure is good then the bearings never make contact. But throw in a bunch of vibration from something being out of balance and you will potentially wear bearings. I personally would rather stick to a dampened pulley and go with a flywheel to reduce rotating mass. There is more to be had in the flywheel anyways.

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