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Under drive pullly by Zoom88
Started on: 01-19-2008 01:05 PM
Replies: 2
Last post by: Zoom88 on 01-19-2008 08:43 PM
Zoom88
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Report this Post01-19-2008 01:05 PM Click Here to See the Profile for Zoom88Click Here to visit Zoom88's HomePageClick Here to Email Zoom88Send a Private Message to Zoom88Direct Link to This Post
Sometimes my voltage will drop to 11.9
I am using a 140 amp alternator
My question is, will putting on the small
power pully kit help with my voltage problem or contribute to it
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Raydar
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Report this Post01-19-2008 02:29 PM Click Here to See the Profile for RaydarClick Here to Email RaydarSend a Private Message to RaydarDirect Link to This Post
It'll make it worse.
Actually, the voltage won't drop any lower (at 11.9 you're running on the battery, anyway) but it'll do it at higher RPM.
IOW, if it only does it below 850 RPM, it'll do it below some higher number, like 900.

I programmed another 100 RPM or so into my idle speed. Helped quite a bit.

Edit - You can probably find a smaller diameter alternator pulley in order to get the alternator RPM back up, but that will take away part of the benefit of even having the underdrive pulley.

------------------
Raydar
88 4.9 Formula IMSA Fasback..........................88 3.4 coupe -soon to be something other than red

Read Nealz Nuze! Praise the Lowered!

[This message has been edited by Raydar (edited 01-19-2008).]

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Zoom88
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Report this Post01-19-2008 08:43 PM Click Here to See the Profile for Zoom88Click Here to visit Zoom88's HomePageClick Here to Email Zoom88Send a Private Message to Zoom88Direct Link to This Post
 
quote
Originally posted by Raydar:

It'll make it worse.
Actually, the voltage won't drop any lower (at 11.9 you're running on the battery, anyway) but it'll do it at higher RPM.
IOW, if it only does it below 850 RPM, it'll do it below some higher number, like 900.

I programmed another 100 RPM or so into my idle speed. Helped quite a bit.

Edit - You can probably find a smaller diameter alternator pulley in order to get the alternator RPM back up, but that will take away part of the benefit of even having the underdrive pulley.


Thannks, Radar
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