Alternator?

69camz28 · 11-05-2012, 07:39 PM

Do you guys run an alternator in your race car? If so, can you explain the set up? If not, can you explain how your wiring/battery set up is configured? I'm weighing the pros and cons to both.

Thanks,

Jeff

Alan Roehrich · 11-05-2012, 07:45 PM

Yes, we run an alternator. They are one wire alternators, and charge through relays, so that they do not keep the engine running if the master disconnect is turned off.

Lew Silverman · 11-06-2012, 10:21 PM

I run a Powermaster 1-wire alternator on the 'wagon hooked directly to the positive side of the battery. Nothing fancy, but it meets the rules and I have had no run-on issues. Most aftermarket 1-wire units work basically the same way. I'm also using a 6 Amp battery charger after every round.

Lew

Jeff Lee · 11-06-2012, 10:54 PM

I'm looking at a Declo 50 amp idle / 105 amp WOT. It's bigger & heavier than the mini Denso 45 amp I had previously as I found an OEM Volvo electric fan & shroud that fits my radiator nicely. It should cool nicely but the draw is 40 amps extra over what I ran previously. The Delco alternator is 11.2 pounds vs around 5-6 pounds for the mini's. This is a 16 volt unit.
Anybody run a cog (not serpentine) alternator? Have a source? I found this
http://www.blackmountainprecision.com/bb4.htm

bob3240 · 11-08-2012, 09:40 PM

Don't forget about the one way diode if you are using an MSD so that you'll be able to stop your engine!

11-05-2012, 07:39 PM	#1
69camz28 Member Join Date: Sep 2009 Posts: 148 Likes: 1 Liked 1 Time in 1 Post	Alternator? Do you guys run an alternator in your race car? If so, can you explain the set up? If not, can you explain how your wiring/battery set up is configured? I'm weighing the pros and cons to both. Thanks, Jeff

11-05-2012, 07:45 PM	#2
Alan Roehrich Veteran Member Join Date: May 2006 Location: Murfreesboro TN Posts: 5,100 Likes: 1,551 Liked 1,780 Times in 405 Posts	Re: Alternator? Yes, we run an alternator. They are one wire alternators, and charge through relays, so that they do not keep the engine running if the master disconnect is turned off. __________________ Alan Roehrich 212A G/S

11-06-2012, 10:21 PM	#3
Lew Silverman VIP Member Join Date: Mar 2010 Location: Newport News, VA Posts: 1,435 Likes: 371 Liked 129 Times in 59 Posts	Re: Alternator? I run a Powermaster 1-wire alternator on the 'wagon hooked directly to the positive side of the battery. Nothing fancy, but it meets the rules and I have had no run-on issues. Most aftermarket 1-wire units work basically the same way. I'm also using a 6 Amp battery charger after every round. Lew __________________ Lew Silverman #2070 "The Wagon Master" N/SA

11-06-2012, 10:54 PM	#4
Jeff Lee VIP Member Join Date: Jul 2007 Location: Anthem, Arizona Posts: 2,766 Likes: 0 Liked 3 Times in 3 Posts	Re: Alternator? I'm looking at a Declo 50 amp idle / 105 amp WOT. It's bigger & heavier than the mini Denso 45 amp I had previously as I found an OEM Volvo electric fan & shroud that fits my radiator nicely. It should cool nicely but the draw is 40 amps extra over what I ran previously. The Delco alternator is 11.2 pounds vs around 5-6 pounds for the mini's. This is a 16 volt unit. Anybody run a cog (not serpentine) alternator? Have a source? I found this http://www.blackmountainprecision.com/bb4.htm __________________ Jeff Lee 7494 D/S '70 AMX

11-08-2012, 09:40 PM	#5
bob3240 Member Join Date: Jan 2009 Location: lebanon ohio Posts: 251 Likes: 3 Liked 16 Times in 5 Posts	Re: Alternator? Don't forget about the one way diode if you are using an MSD so that you'll be able to stop your engine!