Small Block & Big Block Chevy Specific - Question about cables for alternator, distributor an electric gerator




James911
04-01-2008, 04:33 PM
Hi,

could somebody tell me how many and which cabels I have to conect to my alternator, distributor and generator?

It is for my Impala, 1970, 350 cui.

Thanks

Tom


1994Z28Lt1
04-01-2008, 07:53 PM
are you going to run an externally regulated alternator or internally regulated alternator?

what kind of distributor?

i ask this because it makes a huge difference in how things are wired

with an HEI all you really have to worry about is supplying it power to it, if its a points style you will have a resistive wire which will supply just over 9 volts to the distributor with the key on and another wire tied in with the starter solenoid so that while cranking the distributor sees a full battery voltage

if you run an internally regulated alternator you just need to run a wire from the back of the alternator and the #2 spade connector to the battery and the #1 spade connects to a dash warning light if you have one

1 FMF
04-02-2008, 01:43 PM
http://www.oldengine.org/unfaq/10si.htm

http://www.alternatorparts.com/understanding_alternators.htm

http://www.alternatorparts.com/what_is_a_self_exciting_alternator.htm

http://www.alternatorparts.com/what_is_a_self_exciting_alternator.htm


James911
04-02-2008, 04:28 PM
are you going to run an externally regulated alternator or internally regulated alternator?

what kind of distributor?

i ask this because it makes a huge difference in how things are wired

with an HEI all you really have to worry about is supplying it power to it, if its a points style you will have a resistive wire which will supply just over 9 volts to the distributor with the key on and another wire tied in with the starter solenoid so that while cranking the distributor sees a full battery voltage

if you run an internally regulated alternator you just need to run a wire from the back of the alternator and the #2 spade connector to the battery and the #1 spade connects to a dash warning light if you have one

What is the difference between a Hei and a point style? I have a HEI, is this better?

How can I find out wether I have a internally regulated alternator or something else?

James

1 FMF
04-03-2008, 01:20 PM
if you pull the back case of the alternator, just the cover on the back don't split the case, you should see the internal regulator which will look like this.
http://www.autoshop101.com/trainmodules/alternator/altimage/06f.jpg

or if you have a model/serial number of the alternator try looking it up.
if it's the original, then parts store listing indicates it's externally regulated.
http://www.partsamerica.com/ProductList.aspx?PartType=11&PTSet=A&SearchFor=Alternator


this is a good read:
http://www.rowand.net/Shop/Tech/AlternatorGeneratorTheory.htm

wikipedia for points ignition,
http://www.chevyhiperformance.com/techarticles/67498_hei_coils_modules/index.html

yes, HEI is better, it is electronic and will have a higher power coil and give better spark and is practically maintenance free.