Re: 16v system on the street?
[Re: Dragula]
#3180601
10/03/23 02:20 PM
10/03/23 02:20 PM
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Joined: Jan 2003
Posts: 8,027 Tulsa OK
Bad340fish
master
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master
Joined: Jan 2003
Posts: 8,027
Tulsa OK
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Yes you would need a 16V alternator, so you need to make sure your lights and accessories can run at 18V or so while the car is running.
I would be more concerned with why your car may not start well on a 12V system.
Remember you can't buy a 16V battery anywhere for the most part, so if you have a problem on the road your stuck. I work for a battery distributorship and we occasionally get the call of a panicked racer looking for a 16V battery ASAP. 16V is special race car crap, that is not a battery used in any other industry that I am aware of. The panicked racer usually doesn't like the option of running 2 65lb 8 volt golf cart batteries run in series lol.
68 Barracuda Formula S 340
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Re: 16v system on the street?
[Re: Dragula]
#3180632
10/03/23 03:29 PM
10/03/23 03:29 PM
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Joined: Jan 2003
Posts: 8,027 Tulsa OK
Bad340fish
master
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master
Joined: Jan 2003
Posts: 8,027
Tulsa OK
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Just a few minutes ago on Facebook there was a Rocky Mountain Race week participant looking for a 16v alternator on the road. That is a tough one to find, hopefully another racer has one for him.
68 Barracuda Formula S 340
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Re: 16v system on the street?
[Re: Bad340fish]
#3180648
10/03/23 04:12 PM
10/03/23 04:12 PM
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Joined: Feb 2005
Posts: 20,179 PA.
pittsburghracer
"Little"John
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"Little"John
Joined: Feb 2005
Posts: 20,179
PA.
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Just a few minutes ago on Facebook there was a Rocky Mountain Race week participant looking for a 16v alternator on the road. That is a tough one to find, hopefully another racer has one for him.
Trust me having used a 16 volt battery years ago when I was out of town I always worried about it going bad. My 12 volt did exactly that this year and my buddy ran me into town to Advance Auto to buy another 12 volt battery. With that said my friend that does run a 16 volt battery had his alternator switched to 16 volt at a local alternator shop.
1970 Duster Edelbrock headed 408 5.984@112.52 422 Indy headed small block 5.982@112.56 mph 9.42@138.27
Livin and lovin life one day at a time
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Re: 16v system on the street?
[Re: sean1970]
#3180724
10/03/23 08:17 PM
10/03/23 08:17 PM
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Joined: Jan 2003
Posts: 11,713 Portage,michigan
B3422W5
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 11,713
Portage,michigan
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I had my car completely rewired by a professional 4 years ago. Might be the best investment I have ever made in a car. Guy who did the work told me with all new wiring and good grounds, properly sized battery cable to the back, etc, etc, etc.. I would be pleased. Other than for a while popping alternator belts off which several times killed the battery( problem solved by new alternator bracketry), I haven’t had a charger within 100 yards of the car. Starts like it’s 16 volts, run fan and water pump between rounds, zero issues. Most all the stuff mentioned above, hi amp electric fans, electric water pumps, fuel pumps, msd boxes, etc, have been around since the ice age. Mine is 12.5 compression. To me, having had issues pre getting rewired, I would look at wiring first. If it’s golden, the chance of any issues with a 12 volt system are remote, in my opinion. 16 volt can well be a band aid masking a deeper issue( poor wiring)
Last edited by B3422W5; 10/03/23 08:19 PM.
69 Dart GTS A4 Silver All steel, flat factory hood, 3360race weight 418 BPE factory replacement headed stroker, 565 lift solid cam Best so far, 10.40 @127 1/4 1.41 best 60 foot 6.60 at 103.90 1/8
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Re: 16v system on the street?
[Re: Dragula]
#3180790
10/03/23 11:01 PM
10/03/23 11:01 PM
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Joined: Aug 2005
Posts: 760 Southington Ct.
turbobitt
super stock
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super stock
Joined: Aug 2005
Posts: 760
Southington Ct.
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Can it be done, and if so, how do you do it? Thinking of running a 16v battery on my car for better starts, how does this work with an alternator? Do I need a 16v alternator? I have done this on my Turbo Buick. GM alternators are easy to modify for 16 volt systems. It will actually need to charge at about 19.5 volts(about 2.45 volts per cell). The major benefits are hotter ignition, and more importantly electric fuel pump output goes up dramatically. On a high HP fuel injected car its far more beneficial since fuel pump output at high pressures are hard to achieve under high boosted applications. I used a Rock racing battery that had a 3rd 12v lug for some stuff I didn't want on the 16 volt side. AG
1970 Challenger w/572 Hemi street car and my pride and joy.
1986 T-Type with 272 Stage 2 Buick V6 engine - True 8 second street car. Just updated the engine and put down 928 HP @ 35# boost to the ground on chasis dyno.
1976 Cee Bee Avenger Jet Boat - 460 Ford powered.
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Re: 16v system on the street?
[Re: Dragula]
#3180862
10/04/23 09:25 AM
10/04/23 09:25 AM
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Joined: Oct 2007
Posts: 4,206 New York
polyspheric
master
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master
Joined: Oct 2007
Posts: 4,206
New York
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Google: "what is a transformer?"
Boffin Emeritus
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Re: 16v system on the street?
[Re: Bad340fish]
#3180865
10/04/23 09:28 AM
10/04/23 09:28 AM
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Joined: Jan 2003
Posts: 13,365 Marion, South Carolina [><]
an8sec70cuda
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 13,365
Marion, South Carolina [><]
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Yes you would need a 16V alternator, so you need to make sure your lights and accessories can run at 18V or so while the car is running.
I would be more concerned with why your car may not start well on a 12V system.
Remember you can't buy a 16V battery anywhere for the most part, so if you have a problem on the road your stuck. I work for a battery distributorship and we occasionally get the call of a panicked racer looking for a 16V battery ASAP. 16V is special race car crap, that is not a battery used in any other industry that I am aware of. The panicked racer usually doesn't like the option of running 2 65lb 8 volt golf cart batteries run in series lol. 16V systems are great, until your battery or alternator craps out and you're in a pinch. I would not consider a 16V system for a car I was planning on taking on drag week.
CHIP '70 hemicuda, 575" Hemi, 727, Dana 60 '69 road runner, 440-6, 18 spline 4 speed, Dana 60 '71 Demon, 340, low gear 904, 8.75 '73 Chrysler New Yorker, 440, 727, 8.75 '90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt '06 GMC 2500HD LBZ Duramax
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Re: 16v system on the street?
[Re: an8sec70cuda]
#3180879
10/04/23 09:55 AM
10/04/23 09:55 AM
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Joined: Feb 2005
Posts: 20,179 PA.
pittsburghracer
"Little"John
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"Little"John
Joined: Feb 2005
Posts: 20,179
PA.
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I did back to back tests in my Daytona years ago and saw zero performance gain. And my cars start fine on 12 volts so why bother. I may stick a charger on my duster once a month.
1970 Duster Edelbrock headed 408 5.984@112.52 422 Indy headed small block 5.982@112.56 mph 9.42@138.27
Livin and lovin life one day at a time
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Re: 16v system on the street?
[Re: turbobitt]
#3180891
10/04/23 10:38 AM
10/04/23 10:38 AM
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Joined: Mar 2005
Posts: 104 Houston, Texas
sean1970
member
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member
Joined: Mar 2005
Posts: 104
Houston, Texas
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Can it be done, and if so, how do you do it? Thinking of running a 16v battery on my car for better starts, how does this work with an alternator? Do I need a 16v alternator? I have done this on my Turbo Buick. GM alternators are easy to modify for 16 volt systems. It will actually need to charge at about 19.5 volts(about 2.45 volts per cell). The major benefits are hotter ignition, and more importantly electric fuel pump output goes up dramatically. On a high HP fuel injected car its far more beneficial since fuel pump output at high pressures are hard to achieve under high boosted applications. I used a Rock racing battery that had a 3rd 12v lug for some stuff I didn't want on the 16 volt side. AG That is exactly right. I have ran 16 volts on all my stuff for 30 years and would never go back to 12 volts. If your a nitrous guy or blown/EFI it is leaps and bounds better then 12 volts. Voltage is power. On a pure stock deal with some mods ok 12 volts but do a test on the draw down of voltage and you will be surprised.
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Re: 16v system on the street?
[Re: Dragula]
#3180918
10/04/23 12:10 PM
10/04/23 12:10 PM
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Joined: Jan 2003
Posts: 965 Odessa, Fl
blowndart
super stock
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super stock
Joined: Jan 2003
Posts: 965
Odessa, Fl
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Can it be done, and if so, how do you do it? Thinking of running a 16v battery on my car for better starts, how does this work with an alternator? Do I need a 16v alternator? I take it you have a battery in the trunk? Are you looking for better starting when the engine has heated up and the starter gets a little heat-soaked? Are you running a single 12V battery?
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Re: 16v system on the street?
[Re: blowndart]
#3180934
10/04/23 12:35 PM
10/04/23 12:35 PM
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Joined: Jan 2004
Posts: 4,566 Motor City
6PKRTSE
master
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master
Joined: Jan 2004
Posts: 4,566
Motor City
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I almost went 16V (on the street) many advised against it. I wired it up for 12V and just run one small lightweight Braille Racing battery. It does just fine running my dual electric fans and giant Aeromotive 3000 fuel pump, Racepak etc on the street.
1963 Belvedere 440 Max Wedge Tribute 1970 Charger R/T S.E. 440 Six Pack 1970 Challenger R/T, 528 Hemi 1970 Charger 500 S.E. 440 4 BBL 1970 Plymouth Road Runner 383 1974 Chrysler New Yorker 440 1996 2500 RAM 488 V-10 4X4 2004 3500 Dually Cummins 4x4 2012 Challenger R/T Classic.
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