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The Cars => 1965 GT350/R-Model => Topic started by: deathsled on July 10, 2025, 07:55:29 PM

Title: R model gauge wiring
Post by: deathsled on July 10, 2025, 07:55:29 PM
The R model panel is coming together thanks to a US Air Force instrumentations guy up the street who worked on F-100s and F-4s Just for clarification, the red light is for ignition which shuts off once the engine starts, is that correct? That is the info I related to him thinking it the only logical application. If so, he said he was using a timing circuit drive that would shut the light off once the engine is on. He also mentioned and this is for anyone using the Branda panel with CS gauges, that the fuel pressure dash light is actually an L.E.D. that he soldered a resistor to in order to prevent too much current running through it. He is a thorough guy using solder instead of crimps. Anyone else have any experience with these gauges and anything I missed?
Title: Re: R model gauge wiring
Post by: Bob Gaines on July 10, 2025, 09:17:20 PM
LED's are a better modern modification IMO but small incandescent bulbs were used originally. The red light is for the alternator idiot light like on a regular 65 Mustang. It works like you describe when you turn the ignition key however it turns off because the alternator takes over from the battery. It will come on if your alternator goes bad ,problem in the charging system or a belt breaks or comes off. The green one is for turn signals and the blue  one is for high beams or sometimes used for a electric fuel pump .
Title: Re: R model gauge wiring
Post by: deathsled on July 10, 2025, 10:22:49 PM
Thank you for the insight. He knows electronics. Me not so much.
Title: Re: R model gauge wiring
Post by: shelbydoug on July 11, 2025, 09:01:40 AM
F4's? Are you having him install 50cal machine guns? Where are you going to store the ammo belts?
Title: Re: R model gauge wiring
Post by: deathsled on July 11, 2025, 11:11:40 AM
Quote from: shelbydoug on July 11, 2025, 09:01:40 AMF4's? Are you having him install 50cal machine guns? Where are you going to store the ammo belts?
I would LOVE to have two 50 calibre machine guns, one in each headlight.
Title: Re: R model gauge wiring
Post by: FL SAAC on July 11, 2025, 12:07:43 PM
For your consideration


Quote from:  link=msg=218363 date=1752238900I would LOVE to have two 50 calibre machine guns, one in each headlight.

Title: Re: R model gauge wiring
Post by: shelbydoug on July 11, 2025, 01:10:17 PM
Quote from: FL SAAC on July 11, 2025, 12:07:43 PMFor your consideration


Quote from:  link=msg=218363 date=1752238900I would LOVE to have two 50 calibre machine guns, one in each headlight.

Interesting people that you meet at car shows?
Title: Re: R model gauge wiring
Post by: deathsled on July 11, 2025, 10:18:20 PM
Quote from: FL SAAC on July 11, 2025, 12:07:43 PMFor your consideration


Quote from:  link=msg=218363 date=1752238900I would LOVE to have two 50 calibre machine guns, one in each headlight.

I'll get the panel installed and let it snowball from there...
Title: Re: R model gauge wiring
Post by: deathsled on July 17, 2025, 11:38:18 PM
Wiring diagram for anyone interested in doing an R model set of gauges. Done by a military aircraft instrumentation guy up the street.
Title: Re: R model gauge wiring
Post by: 98SVT - was 06GT on July 17, 2025, 11:41:48 PM
Quote from: shelbydoug on July 11, 2025, 09:01:40 AMF4's? Are you having him install 50cal machine guns? Where are you going to store the ammo belts?
You didn't really think these were for brake cooling..........
Title: Re: R model gauge wiring
Post by: deathsled on July 17, 2025, 11:45:41 PM
Ha ha! Yes, that would be an excellent spot for them!
Title: Re: R model gauge wiring
Post by: TA Coupe on July 18, 2025, 02:30:52 AM
And openings in the rear valence, are for where the oil sprays out.

     Roy
Title: Re: R model gauge wiring
Post by: shelbydoug on July 18, 2025, 08:48:47 AM
Quote from: deathsled on July 17, 2025, 11:38:18 PMWiring diagram for anyone interested in doing an R model set of gauges. Done by a military aircraft instrumentation guy up the street.

Is the term "turn single" a military term?

Was that a finger slip on the "key board"?
Title: Re: R model gauge wiring
Post by: deathsled on July 18, 2025, 08:59:09 PM
Quote from: shelbydoug on July 18, 2025, 08:48:47 AM
Quote from: deathsled on July 17, 2025, 11:38:18 PMWiring diagram for anyone interested in doing an R model set of gauges. Done by a military aircraft instrumentation guy up the street.

Is the term "turn single" a military term?

Was that a finger slip on the "key board"?
Quite possibly the latter.
Title: Re: R model gauge wiring
Post by: shelbydoug on July 18, 2025, 10:32:11 PM
Quote from: deathsled on July 18, 2025, 08:59:09 PM
Quote from: shelbydoug on July 18, 2025, 08:48:47 AM
Quote from: deathsled on July 17, 2025, 11:38:18 PMWiring diagram for anyone interested in doing an R model set of gauges. Done by a military aircraft instrumentation guy up the street.

Is the term "turn single" a military term?

Was that a finger slip on the "key board"?
Quite possibly the latter.

...but there was no keyboard?
Title: Re: R model gauge wiring
Post by: deathsled on July 19, 2025, 02:10:34 PM
Quote from: shelbydoug on July 18, 2025, 10:32:11 PM
Quote from: deathsled on July 18, 2025, 08:59:09 PM
Quote from: shelbydoug on July 18, 2025, 08:48:47 AM
Quote from: deathsled on July 17, 2025, 11:38:18 PMWiring diagram for anyone interested in doing an R model set of gauges. Done by a military aircraft instrumentation guy up the street.

Is the term "turn single" a military term?

Was that a finger slip on the "key board"?
Quite possibly the latter.

...but there was no keyboard?
Yes, and like The Matrix, there is no spoon.
Title: Re: R model gauge wiring
Post by: Bob Gaines on July 19, 2025, 10:20:56 PM
Why is there a timer?
Title: Re: R model gauge wiring
Post by: J_Speegle on July 20, 2025, 03:53:12 PM
Quote from: Bob Gaines on July 19, 2025, 10:20:56 PMWhy is there a timer?


Maybe for rallies
Title: Re: R model gauge wiring
Post by: deathsled on July 22, 2025, 02:22:21 PM
Quote from: Bob Gaines on July 19, 2025, 10:20:56 PMWhy is there a timer?
Not sure why he installed a timer other than I said the red light needs to come on for power. It is looking based on your prior info that the light needs to be hooked up in such a manner so that if the power fails as in the alternator or a broken fan belt or a stall, that the red light comes on. I am thinking it might not in its current configuration.
Title: Re: R model gauge wiring
Post by: Bob Gaines on July 22, 2025, 05:42:19 PM
Quote from: deathsled on July 22, 2025, 02:22:21 PM
Quote from: Bob Gaines on July 19, 2025, 10:20:56 PMWhy is there a timer?
Not sure why he installed a timer other than I said the red light needs to come on for power. It is looking based on your prior info that the light needs to be hooked up in such a manner so that if the power fails as in the alternator or a broken fan belt or a stall, that the red light comes on. I am thinking it might not in its current configuration.
At some point I would suggest that needs to be taken care of and fixed to work properly IMO because it would seem to me to be silly otherwise. 
Title: Re: R model gauge wiring
Post by: deathsled on July 22, 2025, 05:55:35 PM
Agreed
Title: Re: R model gauge wiring
Post by: Mikelj5S230 on July 23, 2025, 06:00:34 PM
I'm trying to visualize what this looks like in the dash.
Title: Re: R model gauge wiring
Post by: spiller on October 10, 2025, 08:27:23 AM
How has this project worked out for you Deathsled? I am visiting Chicago in December to see the wife's family for Xmas and plan on bringing back a set of R model gauges in my luggage. I like the idea of the CS reproduction gauges from Branda vs the more generic Stewart Warner gauges. However I have heard one or two negatives about the reliability of the CS reproductions from Branda. Can anyone shed any light on the topic?
Title: Re: R model gauge wiring
Post by: Patryk on October 17, 2025, 04:50:14 AM
Was that a finger slip on the "key board"?
Title: Re: R model gauge wiring
Post by: deathsled on October 17, 2025, 07:52:33 PM
Quote from: spiller on October 10, 2025, 08:27:23 AMHow has this project worked out for you Deathsled? I am visiting Chicago in December to see the wife's family for Xmas and plan on bringing back a set of R model gauges in my luggage. I like the idea of the CS reproduction gauges from Branda vs the more generic Stewart Warner gauges. However I have heard one or two negatives about the reliability of the CS reproductions from Branda. Can anyone shed any light on the topic?

Have not installed the gauges yet.  As for reliability, I will eventually find out and as each one fails, it will be replaced with a Stewart Warner gauge.  That's the plan.  Just driving the car around as is for the moment and having fun in it.
Title: Re: R model gauge wiring
Post by: spiller on October 21, 2025, 05:00:27 PM
Good luck getting them up and running. I may just buy the SW gauges and use my existing '66 tach in position along side them. Great looking Shelby!