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  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
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A bad alt, is it killing my performance??

  • Thread starter Thread starter Kdubslugga
  • Start date Start date May 21, 2005

Kdubslugga

Active Member
Jun 7, 2003
1,515
3
38
Akron, OH
May 21, 2005
#1
  • May 21, 2005
  • #1
Well 2 weeks ago i went to the track and ran a 13.8 @ 100.5, that was my best, but it consistantly ran high 13.9s and 14.00s. Anyways i went this past Tues. and something was wrong, i pulled up to the tree and the idle just started to lope, my guages were all over the place and my radio kept on coming on and off, i looked at my volts guage and it was in the red area, and my alt light was on, i ran it twice that night and the performance was gone, i ran 14.6's and even a 14.8 at 96 and 97mph. I was just so slow off the line but once the car got going it felt OK like i got my performance back, but off the line was like a dog. I was cutting 2.3 60s with no spin. I had my alt check out and its making 2 volts at idle so yeah its shot!!! I have a 3G coming shortly, but i was just wondering if a shot alt could hurt you that bad, i talked to a guy at the track about it and he said he had the same prob once, he did a 3g upgrade and everything was back to normal said he even gained a .5mph. What are your thoughts?
 

bighoss88lx

Founding Member
Sep 6, 2002
537
0
0
San Antonio, Texas
May 21, 2005
#2
  • May 21, 2005
  • #2
Yes, it does hurt performance. If all of your sensors, ECM and ignition system arent getting the proper voltage the car will not run right. I upgraded to a 3g from a good working stock alternator and could tell a difference.
 
S

SPEED FREAK

Founding Member
Aug 7, 2000
1,448
0
0
Regina, SK.
May 21, 2005
#3
  • May 21, 2005
  • #3
bighoss88lx said:
Yes, it does hurt performance. If all of your sensors, ECM and ignition system arent getting the proper voltage the car will not run right. I upgraded to a 3g from a good working stock alternator and could tell a difference.
Click to expand...

AHMEN!

3G actually provides adequite voltage and current at idle and deffinetly improves drivability.
 

Curse

Member
Apr 8, 2004
791
2
16
El Paso, TX
May 21, 2005
#4
  • May 21, 2005
  • #4
I have to agree with everyone else. I have seen a malfunctioning alternator cost as much as 15 rwhp loss.
 

Kdubslugga

Active Member
Jun 7, 2003
1,515
3
38
Akron, OH
May 21, 2005
#5
  • May 21, 2005
  • #5
Sweet guys thanks for the replies. Hopefully the 3g will get me back to normal, i know it will help a lot because it sputtering and all that crap at all, but once i get on the roads its fine, but as soon as i get to a stop light it acts up again and my amp light comes on. Thanks again!!!!!
 
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