alternator worth e.t. ?

BOBBY THOMPSON · 04-07-2007, 01:21 PM

any feed back on a working alternator and hot battery in a stocker being worth some e.t. after talking to several racers at memphis i have replaced both on my camero hoping to pick up a little before dallas points race. engine in the car is very out datedso trying to pick up all i can with bolt on's and go into engine this winter..thanks for any help b.t.

racer bob

Ed Wright · 04-11-2007, 09:47 PM

Boby, I see nobody answered this. I don't claim to know as much as others here, but did expriment with this on my bracket car (soon to be super stock I hope). Mine is a '96 Firebird with an LT1. Factory EFI and still has the original 4L60E, so voltage is probably more important than a carb car. With the alternator shut off, mine lost 6 or 7 rwhp on my chassis dyno, very consistantly. So, I figured a 16 volt battery & no alternator would run close to the same voltage going down the track as a 12 volt with the alternator charging. It does, but makes the same power, and runs the same times at the track as the 12 volt & alternator.

My power windows are faster with the engine shut off. <G>

Good luck, Ed

BOBBY THOMPSON · 04-20-2007, 11:21 PM

thanks for the input Ed ,had valve spring problems last weekend at ennis so not sure how much it helped if any.but going to rusk tx in 3 weeks to try it again...........

racer bob

04-07-2007, 01:21 PM	#1
BOBBY THOMPSON Junior Member Join Date: Apr 2007 Location: cabot ,ar. 72023 Posts: 16 Likes: 0 Liked 0 Times in 0 Posts	alternator worth e.t. ? any feed back on a working alternator and hot battery in a stocker being worth some e.t. after talking to several racers at memphis i have replaced both on my camero hoping to pick up a little before dallas points race. engine in the car is very out datedso trying to pick up all i can with bolt on's and go into engine this winter..thanks for any help b.t. racer bob

04-11-2007, 09:47 PM	#2
Ed Wright Veteran Member Join Date: Mar 2005 Location: Sand Springs, OK Posts: 8,132 Likes: 896 Liked 389 Times in 169 Posts	Boby, I see nobody answered this. I don't claim to know as much as others here, but did expriment with this on my bracket car (soon to be super stock I hope). Mine is a '96 Firebird with an LT1. Factory EFI and still has the original 4L60E, so voltage is probably more important than a carb car. With the alternator shut off, mine lost 6 or 7 rwhp on my chassis dyno, very consistantly. So, I figured a 16 volt battery & no alternator would run close to the same voltage going down the track as a 12 volt with the alternator charging. It does, but makes the same power, and runs the same times at the track as the 12 volt & alternator. My power windows are faster with the engine shut off. <G> Good luck, Ed __________________ Ed Wright 4156 SS/JA

04-20-2007, 11:21 PM	#3
BOBBY THOMPSON Junior Member Join Date: Apr 2007 Location: cabot ,ar. 72023 Posts: 16 Likes: 0 Liked 0 Times in 0 Posts	thanks for the input Ed ,had valve spring problems last weekend at ennis so not sure how much it helped if any.but going to rusk tx in 3 weeks to try it again........... racer bob