What's your batt. voltage @ WOT?

[The Darkside]

Just wondering if mine is normal? I see 13.5 @ normal driving, but @ WOT it drops to as low as 11.9.



The Darkside

 

[Russ Merritt]

15.8, Thanks to the volt blaster!

 

[Iceman]

I just checked a DirectScan file at wide open and it reported 13.1
at idle it is 13.7

 

[JeffG]

DS says 13.8ish at idle. 13.1 wide open.

 

[gnXfan]

12.4 - 13.6 wot

 

[U1ARUNIT]

13.6 w/o Reds volt booster and 14.5 with.

 

[suburban]

13.8 volts @ idle and 13.4 @ wot. 11.9 does seem low, could be an alternater on its way out.

 

[Iceman]

Where are you getting your reading from? DS,TL,Scanmaster

 

[Jeasen]

Mine runs at 13.8 at idle and normal driving. At WOT voltage drops as RPMs increase. At 4800 RPMs it reads 12.0. I thought my alternator was bad so I installed a brand new one, not a rebuilt one that is rated 5 amps more than the factory one I removed. The new alternator did not change a thing. My voltage readings are from Direct Scan.

 

[Nick Micale]

Could be your belt slipping at high RPM's?

 

[The Darkside]

My reading are coming from an EZ Link Auto X-ray scan tool. If I remember right, my voltage had always been 13 or better in the past @ WOT. I just don't normaly check Batt. voltage.The last time I checked it was probably a few months ago.
I don't believe it would be a belt slipping, as I just had it replaced a week ago with a new GM one...but then again?
Is a voltage booster worth it? Any downsides,because I've heard to much voltage was a bad thing.


The Darkside

 

[azgn]

if you take a look at fuel pump flow at 13v vs 15v, you will see the benefit of a volt booster....it is dramatic what the extra voltage does

I wouldn't race without one

 

[Nick Micale]

Originally posted by The Darkside
.....I don't believe it would be a belt slipping, as I just had it replaced a week ago with a new GM one...but then again?
The Darkside

Did you check the index mark on the tensioner? A new belt can slip if the tensioner is doing its job properly.

If your readings are correct, what else could it be?

 

[Yedi]

Volt Booster

Question, whats a Volt Booster? Can it be used on a non turbo/non computerized car???