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#1 |
Registered User
Join Date: Jun 2016
Location: West Palm Beach, Florida
Posts: 295
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Alternator Conversion
My Voltage Regulator has failed yet again. I would like to convert to internally regulated Alternator. I have read several different posts that discussed how they have done this. what post or video is the safest and most reliable method of eliminating the voltage regulator. thanks
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#2 |
Registered User
Join Date: Dec 1999
Location: Austin, TX, USA
Posts: 7,717
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Re: Alternator Conversion
Spend $20 on one of the “Conversion” plugs is the simplest and least chance of a mistake. Bypasses the regulator and adapts the exciter/sensing wire to the internal alternator. Add your 10si alternator in the 70 amp range and no need to change any wiring.
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#3 |
Registered User
Join Date: Jun 2016
Location: West Palm Beach, Florida
Posts: 295
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Re: Alternator Conversion
Where can I find this, Amazon?
I found this on Summit https://www.summitracing.com/parts/aww-27555 is this what you are referring too, but it looks really short. Last edited by Minkota; 02-07-2020 at 08:45 AM. |
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#4 |
Old member
Join Date: Jan 2002
Location: Liberty, & Garden City S.C. , U.S.
Posts: 19,936
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1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver Seeing the USA in a 71 ![]() Upstate SC GM Truck Club 2013,14 and 2016 Hot Rod Pour Tour http://upstategmtrucks.com/ Get out and drive the truck this summer and have some fun! It sucks not being able to hear! LWB trucks rule, if you don't think so measure your SWB! After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs. |
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#5 |
Registered User
Join Date: Feb 2011
Location: Parkville, MD
Posts: 1,024
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Re: Alternator Conversion
Yes that is all you need. It jumps 2 sets of wires where the regulator would be and converts the part that connects to the alternator/generator. This is very easy / simple to do. Just plug and play. Easily reversible.
Lots of info on the 10si / 12si. The most valuable thing here is the part numbers. http://www.madelectrical.com/electri...elcoremy.shtml I ordered mine off Rock Auto. I got the 78 amp 12si 9:00. Be aware the 10si / 12si top bolt is 10mmx1.5. I needed to grind the top bracket a bit for the bolt to fit.
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1970 C20 Custom Camper - 350, TH350 1997 GMC Suburban 1994 Acura Integra GSR 1987 Dodge Daytona Shelby Z |
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#6 |
Senior Member
![]() Join Date: Dec 1999
Location: Spring Valley, Ca.
Posts: 1,112
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Re: Alternator Conversion
I got my conversion plugs ins from M & H Electric. Best money spent in some time! Santa Fe Springs, Ca. 562-926-9552 wiringharness.com.
Excellent products and customer service.
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Smitty '71 Short Fleetside Spring Valley, Ca. Last edited by Smitty; 02-07-2020 at 10:01 AM. Reason: Correct web address |
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#7 |
Registered User
Join Date: Jun 2016
Location: West Palm Beach, Florida
Posts: 295
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Re: Alternator Conversion
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#8 |
Proprietor of Dale's Corner
![]() Join Date: Nov 2012
Location: Vacaville , CA
Posts: 16,101
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Re: Alternator Conversion
Does the amp gauge work after the conversion?
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"Some Days Chickens And Some Days Feathers" Dale XNGH ECV Sam Brannan 1004 R.I.P. 67ChevyRedneck R.I.P. Grumpy Old Man |
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#9 |
Senior Member
![]() Join Date: Dec 1999
Location: Spring Valley, Ca.
Posts: 1,112
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Re: Alternator Conversion
Not sure. But when I upgraded mine I upgraded the gauge to a volt meter. Because i’m Told this is needed because of higher output. Tbone did a killer job on my volt meter. Can’t tell the difference from the ampl gauge.
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Smitty '71 Short Fleetside Spring Valley, Ca. |
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#10 |
Registered User
![]() Join Date: Apr 2017
Location: Boise, ID
Posts: 856
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Re: Alternator Conversion
I put a 12SI alternator on mine and did the three wire configuration instead. It was pretty simple, the board was very helpful.
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1968 GMC C2500 Long Bed Fleetside |
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#11 |
Senior Member
![]() Join Date: Jun 2005
Location: Winona Lake, IN
Posts: 6,281
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Re: Alternator Conversion
Get a solid state regulator instead of the stock type and you won’t have any more problems.
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#12 |
Post Whore
![]() Join Date: Feb 2016
Location: Portland Oregon
Posts: 11,119
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Re: Alternator Conversion
If you don't upgrade the wire sizes and the gauge worked prior to conversion then yes it should work. I upgraded mine with new wires and the calibrated resistance balance of the circuit was lost so now my gauge barely moves. I will switch to a voltmeter as that will be easier than trying to restore the balance of the system.
The link below goes to my repair thread scroll down to post 467 for a short write up with photos on my conversion. https://67-72chevytrucks.com/vboard/...698377&page=19
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Thanks to Bob and Jeanie and everyone else at Superior Performance for all their great help. ![]() RIP Bob Parks. 1967 Burban (the WMB),1988 S10 Blazer (the Stink10 II),1969 GTO (the Goat), 1970 Javelin, 1952 F2 Ford OHC six 4X4, 29 Model A, 72 Firebird (the DBP Bird). 85 Alfa Romeo If it breaks I didn't want it in the first place The WMB repair thread http://67-72chevytrucks.com/vboard/s...d.php?t=698377 |
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#13 | |
Proprietor of Dale's Corner
![]() Join Date: Nov 2012
Location: Vacaville , CA
Posts: 16,101
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Re: Alternator Conversion
Quote:
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"Some Days Chickens And Some Days Feathers" Dale XNGH ECV Sam Brannan 1004 R.I.P. 67ChevyRedneck R.I.P. Grumpy Old Man |
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#14 |
Senior Member
![]() Join Date: Apr 2016
Location: Cypress, TX
Posts: 3,703
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Re: Alternator Conversion
If you don't connect accessories to the passenger fender terminal block or battery, and you don't upgrade the gauge or change the length (about 6 ft I think) of the 12 gauge red wire that runs across the top of the radiator between the passenger fender terminal block and the soldered junction that is wrapped with tape near the driver side headlight, then the amp gauge should operate fine. That section of 12 gauge wire is a specific resistance and it is the shunt that makes the ammeter work.
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#15 | |
Senior Member
![]() Join Date: Nov 2018
Location: Waterford California
Posts: 2,525
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Re: Alternator Conversion
Quote:
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#16 | |
Old member
Join Date: Jan 2002
Location: Liberty, & Garden City S.C. , U.S.
Posts: 19,936
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![]() Quote:
By the way this is how Mad electric does it also. ![]()
__________________
1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver Seeing the USA in a 71 ![]() Upstate SC GM Truck Club 2013,14 and 2016 Hot Rod Pour Tour http://upstategmtrucks.com/ Get out and drive the truck this summer and have some fun! It sucks not being able to hear! LWB trucks rule, if you don't think so measure your SWB! After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs. |
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#17 |
Senior Member
![]() Join Date: Dec 1999
Location: Spring Valley, Ca.
Posts: 1,112
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Re: Alternator Conversion
My Volt Meter! Tbone Special.
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Smitty '71 Short Fleetside Spring Valley, Ca. |
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#18 |
Msgt USAF Ret
![]() ![]() Join Date: Jan 2005
Location: Kalamazoo, Michigan
Posts: 8,714
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Re: Alternator Conversion
This thread should cover all anyone needs to know about converting alternators.
http://67-72chevytrucks.com/vboard/s...d.php?t=763180
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VetteVet metallic green 67 stepside 74 corvette convertible 1965 Harley sportster 1995 Harley wide glide Growing old is hell, but it beats the alternative. |
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