What’s the go to when considering to install an alternator? Going through the lights around 7800 if that information is pertinent. Thank you all

I bought a House Of Payne Super Mini 16 volt alternator and a Philadelphia Racing Products bracket, could not be more pleased. No problems, perfect fit, excellent products that I would recommend to everyone.

Bob

House of Payne has waht you need.
https://houseofpayneperformance.com/alternators/

TD-HOP has the good stuff...

PM sent.

Another vote for HOP. I recently started running this one because I don't have much room and it has been great. I ran a 55amp mini before and the Lightening has been 1/2 a volt better during a run.

https://houseofpayneperformanc...ning-12v-alternator/

I like/ use PowerMaster Alternators, and especially like the #47293. This puts out over 90 amps at idle on a 2-1 pulley ratio and is rated to 20k rpm. I prefer cog belts to V. I never charge the car battery at the track…NEVER!!

quote:

Originally posted by markemark:
I never charge the car battery at the track…NEVER!!

I have a good working cheap 140-amp alternator & 2 Optima red top batteries. I always charge the car batteries at the track...ALWAYS!!

2BKING

quote:

Originally posted by B KING:I have a good working cheap 140-amp alternator & 2 Optima red top batteries. I always charge the car batteries at the track...ALWAYS!!

The belt and pulleys were more expensive than the Powermaster 47293 alternator on mine. I prefer this set-up



mem.....i never charge battery at track...never!!!!

quote:

Originally posted by B KING:
I have a good working cheap 140-amp alternator & 2 Optima red top batteries. I always charge the car batteries at the track...ALWAYS!!

The 140-amp replaced the same brand cheap 100-amp alternator & have as a spare. The 140 was needed after the install of the EFI & 3.5 gpm electric fuel pump.

While the hottest my car has gotten is 180* after the run in the Vegas daytime heat & most of the time it's between 160*-170*. The car is on gas by my choice. I have to run the water pump/Meziere 55 gpm & a 3,300 cfm electric fan when in the pits to bring my temps down to where I wish. The pump & Fan pull around 30+ amps. Hence the reason I always charge the car batteries at the track...ALWAYS!!

2BKING

Where did you find the cogged belts?

quote:

Originally posted by markemark:
I like/ use PowerMaster Alternators, and especially like the #47293. This puts out over 90 amps at idle on a 2-1 pulley ratio and is rated to 20k rpm. I prefer cog belts to V. I never charge the car battery at the track…NEVER!!

quote:

Where did you find the cogged belts?

On recommendations here I purchased the 2-1 pulleys and belt direct from Jones. I gave them the dimension info and they provided the correct length belt needed.

JONES

HOP and don't look back

Tuff Stuff alternators. I have compared them with my old HOP cs130, and called.....same alternator.

https://www.tuffstuffperforman...nators.html?limit=50

My 12v sees 7500 rpms and holds 14.1v at idle.

Summit is a distributor.

I'm giving serious consideration to adding an alternator. Been hearing some folks say they saw no difference in ET and others say minimal difference in ET. Have y'all seen any change in ET? Really the only time ET difference will matter to me is in a heads up run (NHRA superstock), which may be few and far between in my class, so I don't see that being a big determining factor but I am curious.

^^^^^ I think the larger output alternator like I use could be slightly less et, but believe it’s probably less than .02 in 700 hp . One would need to do a A-B-A test for their installation.

I went to cog alternator belt because of v-belt slipping and wearing out an aluminum crank pulley. The intermittent screeching at start-up was very noticeable. Always had to keep the belt tighter than I’d like.

Jones recommended the wider 3/4” belt/ pulleys for alternator compared to the 1/2” I used for the fuel pump. I like that the cog belt only needed to be snug now and not tight to work properly. Could be easier on the crank but not sure on this.

Providing the correct size feed wire for the alternator is very important imho.




mem....i never charge battery at the track...never!!!!!!

So I had one of those very expensive big name alternators, it eventually quit working. I took it to a local starter / alternator shop and they repaired it, I asked the guy what was wrong with it and what was different than than a new one like on Amazon? He said nothing they had all factory parts in there only difference was sticker on the outside. So next time I need an alternator will just buy a new one off Amazon. If I remember right big name was around $400 and the one on Amazon was $75 at that time.

One other interesting thing. I have went to 139 tooth starters and flexplates on all my motors. Summit and most places wanted $75 for the 139 tooth starter nose gear. My local starter shop guy is cool he told me it is a standard GM Diesel starter gear and charged me about 5 each. I bought a couple spares. I did notice they are now retailing for about $25 at Summit and other places so I am probably not only one who learned that. I do not mind spending money on good parts but hate wasting money.

Two reasons I choose PowerMaster. They answered the phone and my questions when I called. They provided an individual performance card of the alternator I purchased.



mem….i never charge battery at the track….never!

I see Markemark posted a wire size chart. Just my personal experience on my old car. Typical brackets car with two batteries in the back and a stock 65 amp gm alternator that come off my old 77 Camaro. Originally had a 10g wire from alternator charge post to battery in back. That was wired through a continuous duty 250 amp solinoid so that wire was dead if master cutoff switch was off. I changed the 10g wire to a 4g wire. After that change the fuel pump ran so much faster that I had to reset the fuel pressure regulator by lowering the pressure two pounds. Also noticed my electric radiator fans would blow dust off the windshield afterwards. I was kind of surprised by the results.