Aftermarket Pulleys and their weights - Page 2 - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

FirestormFRS · 08-06-2013, 06:52 PM

I'm confused. The lightweight pulleys are somehow changing the speed at which my auxillary equipment is spinning? I don't see how losing weight will "underdrive" the A/C or altenator.

Please explain this to me?

OrbitalEllipses · 08-06-2013, 06:59 PM

Quote:

Originally Posted by FirestormFRS

I'm confused. The lightweight pulleys are somehow changing the speed at which my auxillary equipment is spinning? I don't see how losing weight will "underdrive" the A/C or altenator.

Please explain this to me?

It won't. An underdriven pulley has a different diameter, THAT is changing the speed of your auxiliary equipment is spinning.

FirestormFRS · 08-06-2013, 07:02 PM

Quote:

Originally Posted by OrbitalEllipses

It won't. An underdriven pulley has a different diameter, THAT is changing the speed of your auxiliary equipment is spinning.

I was just confused as to how "underdriven" got into the conversation. Thanks for clearing up that these are not underdrive pulleys.

Acree · 08-06-2013, 07:03 PM

Quote:

Originally Posted by FirestormFRS

I'm confused. The lightweight pulleys are somehow changing the speed at which my auxillary equipment is spinning? I don't see how losing weight will "underdrive" the A/C or altenator.

Please explain this to me?

Not all aftermarket pulleys will "under drive" your accessories. Only pulleys that are specifically labeled under drive will do this. They do this by making the crank pulley a slightly smaller diameter than the stock pulley. This causes the accessory belt to run at a slower rate given the same rpm, this "under" driving the accessories connected to it.

OrbitalEllipses · 08-06-2013, 07:07 PM

Quote:

Originally Posted by FirestormFRS

I was just confused as to how "underdriven" got into the conversation. Thanks for clearing up that these are not underdrive pulleys.

We got here through reading comprehension, see my emphasis below:

Quote:

Originally Posted by diss7

My toda units will be here in a week. Will get you the missing weights.

Remember its not just weights. The toda units are under-drive, which puts even less strain on the motor.

Hawk77FT · 08-06-2013, 07:22 PM

Quote:

Originally Posted by OrbitalEllipses

For total weight column I would instead replace it with "-x.xx" for the aftermarket pulley sets. So, minus how much weight the aftermarket pulleys are compared to the stock set.

Underdriven pulleys: never getting cold a/c again.

That needs to be done for each one of them rather than just the whole thing. The weight saved can be easily calculated with having the two rows there.

FirestormFRS · 08-06-2013, 09:27 PM

Quote:

Originally Posted by OrbitalEllipses

For total weight column I would instead replace it with "-x.xx" for the aftermarket pulley sets. So, minus how much weight the aftermarket pulleys are compared to the stock set.

Underdriven pulleys: never getting cold a/c again.

I was trying to be nice but since you're an ass.....

Show me where you defined you were talking about the Toda products....reading comprehension indeed.

OrbitalEllipses · 08-06-2013, 09:53 PM

Quote:

Originally Posted by FirestormFRS

I was trying to be nice but since you're an ass.....

Show me where you defined you were talking about the Toda products....reading comprehension indeed.

I'm addressing Diss7, what's confusing you friendo? His post was the source of discussion for the bulk of the posts in this thread (following his post, imagine that!) when I posted my post. If you need more context clues...well, pal, try public school.

FirestormFRS · 08-06-2013, 10:09 PM

Quote:

Originally Posted by OrbitalEllipses

I'm addressing Diss7, what's confusing you friendo? His post was the source of discussion for the bulk of the posts in this thread (following his post, imagine that!) when I posted my post. If you need more context clues...well, pal, try public school.

I didn't read diss7's post obviously.....and you didn't quote it. My bad for jumping to conclusions. You're still a **** though.

OrbitalEllipses · 08-06-2013, 10:10 PM

Quote:

Originally Posted by FirestormFRS

I didn't read diss7's post obviously.....and you didn't quote it. My bad for jumping to conclusions. You're still a **** though.

All's well and good, but let's read all the posts before we decide to post. To your final point: yes, I am.

Carlitoz3 · 08-06-2013, 10:11 PM

Everyone take a chill pill ;-)

Hawk77FT · 08-07-2013, 10:08 PM

WTF is going on? I have asked for suggestions, etc, not "who's got bigger ****" over the net? Geez!

OrbitalEllipses · 08-07-2013, 11:26 PM

Quote:

Originally Posted by Hawk77FT

WTF is going on? I have asked for suggestions, etc, not "who's got bigger ****" over the net? Geez!

Mine.

I still think there should be a "total difference from stock" column for each pulley set.

JDKane527 · 08-08-2013, 12:36 AM

Stock idler pulley - 0.683 lbs http://www.raceseng.com/revo-pulley-...r-s-subaru-brz

08-08-2013, 12:36 AM	#28
JDKane527 Senior Member Join Date: Jan 2013 Drives: Asphalt Scion FR-S Location: Los Angeles, CA Posts: 499 Thanks: 274 Thanked 215 Times in 136 Posts Mentioned: 10 Post(s)	Stock idler pulley - 0.683 lbs http://www.raceseng.com/revo-pulley-...r-s-subaru-brz __________________ Asphalt Build

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08-06-2013, 06:52 PM	#15
FirestormFRS Senior Member Join Date: Jul 2012 Drives: 2013 FR-S Location: Anytown Posts: 920 Thanks: 73 Thanked 643 Times in 302 Posts Mentioned: 3 Post(s)	I'm confused. The lightweight pulleys are somehow changing the speed at which my auxillary equipment is spinning? I don't see how losing weight will "underdrive" the A/C or altenator. Please explain this to me?

08-06-2013, 10:11 PM	#25
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08-07-2013, 10:08 PM	#26
Hawk77FT Senior Member Join Date: Jul 2012 Drives: GTS 86 Location: Australia Posts: 989 Thanks: 873 Thanked 476 Times in 272 Posts Mentioned: 12 Post(s)	WTF is going on? I have asked for suggestions, etc, not "who's got bigger ****" over the net? Geez!

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