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12-06-2009, 05:54 PM #1
LS1 Self Regulated Alternator? or PCM Bypass
I have a LS1 swapped RX7, and I have obvisouly misssed something......
It is a 2000 LS1, with stock computer, and 1 wire alternator. But the alternator is not charging, so obvisouly the excitor wire isn't doing its thing.
The car is a pourpose build race car. So I am looking for a simple answer.
The question is instead of tracking down my issue is there a Self Regulated Alternator out there that fits the LS1, or are there any "Tricks" to bypass. I figured anyone that is running a carb since there is no PCM would probably know exactly what I was talking about.
Thanks for your help.
Bobby Jasan
www.bobbyjasan.com
bobby@bobbyjasan.com
#60 FP '87 Mazda RX-7, #57 EM '89 Mazda RX-7 LS1, #60 ES '92 Toyota MR2, '73 Mazda RX-3
'95 Nissan Altima SE, '04 Audi S4, '08 GMC Sierra 2500 Dezel, '97 Chevrolet 1500 LS, '91 Ford EscortLast edited by RacinAlt; 12-06-2009 at 06:01 PM.
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12-06-2009, 08:18 PM #2
- Join Date
- Aug 2005
- Location
- Tulsa,OK
- Age
- 43
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- 914
Quick Silver- 2002 Z06
I think this is the info you need
http://www.v8rx7forum.com/v8-rx7-tec...r-upgrade.html
That board has TONS of info on exactly what you are into
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12-06-2009, 09:26 PM #3
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12-07-2009, 05:26 PM #4
- Join Date
- Apr 2008
- Location
- Madison, WI
- Posts
- 7,006
1999 Formula WS6 M6-sold- 2001 Silverado Z71
I got this info from GM
The generator uses only two connections-battery positive and the L terminal, in addition to the ground path through the generator bracket. Use of P, I, and S terminals is optional. The P terminal is connected to the stator and may be connected externally to a tachometer or other devise. The I terminal can be connected directly to battery voltage to power the generator instead of, or in addition to, the L terminal which must be stepped down. This S terminal may be connected to an external voltage source, such as voltage near the battery, for voltage control. If the S terminal is not used, internal generator voltage is used for control.
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12-08-2009, 01:43 PM #5
- Join Date
- Feb 2006
- Location
- Orange County, NY
- Age
- 48
- Posts
- 2,693
always dirty- 2013 Ram 2014 Caddy ATS
On the 1 wire alternator on my boat you have to rev the engine a little to excite the regulator. What brand of alternator do you have?
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