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Topic: positive ground

in Forum: C3 Electrical


positive ground

Posted: 1/25/06 9:36pm Message 1 of 25
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RED BLUFF, CA - USA
Joined: 12/8/2005
Posts: 22
Vette(s): 1968 427 producing 550 hp at rear wheels. Color is Black. This car didn't have a place for a spare tire, or didn't come with an emergency break. The car only has 44,237 origonal miles. License is TERMN8R

Does anybody have or know why my 68 Roadster has a positive ground system in it, & the battery box is big enough to set 2 large batteries in?  I've seen many other vettes 67, 68, 69, but none are positive ground.  Also, this vette didn't come with an emergency brake at all, & no spare tire carrier.  It has 4 wheel disc brakes, but I had to buy everything for an emergency brake.  It has a 427, & when we took it to a dino, it is producing a little over 550 hp to the rear wheels.  There were absolutely no options on this car, & I was told it had been raced in Europe as well as the U.S.  It only has 44,237 miles on it, & will pull the front wheels off the ground going from 1st to 2nd.  It set in a field for a year before I got the previous oner to sell it to me, & he swears it is the way it came from the factory????  Does anybody know why a Vette would be sold like this.  It also has 3" exaust on it until I put the side pipes on it.  Thanks for any help or suggestions.

Bobs6838752.5815740741


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positive ground

Posted: 1/25/06 9:56pm Message 2 of 25
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Duncanville, TX - USA
Joined: 11/8/2003
Posts: 20214
Vette(s): #1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/ Am-Fm/map light National/Regional/Chapter NCRS "Top Flight" #2-1985 Bright Red/Carmine Cp.L-98/auto Member: NCRS, NCRS Texas, Corvette Legends of Texas
NEVER heard of this one! I'd bet the farm it did NOT come from the factory with a 12v, POSITIVE ground system. It is, however, possible that it was a "back-door special", that was specificaly built for one of the major racing players, and modified after that. There were a few of those back in those days.


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positive ground

Posted: 1/25/06 10:00pm Message 3 of 25
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RED BLUFF, CA - USA
Joined: 12/8/2005
Posts: 22
Vette(s): 1968 427 producing 550 hp at rear wheels. Color is Black. This car didn't have a place for a spare tire, or didn't come with an emergency break. The car only has 44,237 origonal miles. License is TERMN8R

Thanks for the info., I never thought of that.  How could a person find out if it was a back door special?  The positive wire going to the frame has bolted hold downs about every 3 to 4 inches to keep it from rubbing or being blown around, a very sanatery job whoever did it.  What would be the advantage to doing that.

 

Bobs6838752.5820601852


positive ground

Posted: 1/26/06 3:40am Message 4 of 25
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Victor, NY - USA
Joined: 7/12/2004
Posts: 6841
Vette(s): 2004 Commemorative Edition Coupe, Auto w/HUD. 13K miles in 2015. Sold 1982 Red Coupe
Maybe there is someone at the NCM that might have some history on odd 1968s or on racing back then. Give them a call and see what they might have.


 
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positive ground

Posted: 1/26/06 4:31am Message 5 of 25
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Belgium
Joined: 1/5/2006
Posts: 774
Vette(s): 350/350 T-top 1970 Cortez silver -blue interior
Perhaps + ground makes less possibilty for static electric when fuelling a race car ? or just worse ? i don't know.


positive ground

Posted: 1/26/06 11:45am Message 6 of 25
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Virginia City, NV - USA
Joined: 1/19/2005
Posts: 314
Vette(s): 1979 Coupe, white in color

This is hard for a lot of folks to wrap themselves around, but in direct current, the kind we have in our cars, electrons flow from the negative to the positive. This is kinda hard to understand, since the cars have a negative ground, but it's true. It is the natural flow of electrons. Most physics people credit it to flowing the other way, but in truth, it's negitive to positive, even in a negative ground vehicle.

Dave

Pumps38743.4909375


positive ground

Posted: 1/26/06 2:45pm Message 7 of 25
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East Hanover, NJ - USA
Joined: 9/25/2004
Posts: 525
Vette(s): '68 Black Conv. Matching 327/300 4 Spd. P/S, P/B, P/W, Tele, A/C

Is the 427 original........?

What is it's code?




positive ground

Posted: 1/26/06 4:52pm Message 8 of 25
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RED BLUFF, CA - USA
Joined: 12/8/2005
Posts: 22
Vette(s): 1968 427 producing 550 hp at rear wheels. Color is Black. This car didn't have a place for a spare tire, or didn't come with an emergency break. The car only has 44,237 origonal miles. License is TERMN8R

The 427 is origional, numbers do match.  The center compartment behind the seats has a switch that you can flip & the car won't start.  That is the only compartment you can lock also.  I've redone 2 other Vettes, but this one has me stumped .  This one I am keeping for my play thing, so I'm not really interested in putting it back stock, but would like to find out what is going on with it.

Bob

Bobs6838752.5845833333


positive ground

Posted: 1/26/06 4:58pm Message 9 of 25
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North Charleston, SC - USA
Joined: 3/20/2004
Posts: 4176
Vette(s): 1975 L48 AT AC T-top
Bob,
Do you have any of the build info such as trim codes, option codes or any other method to research the heritage of the vehicle. Even the VIN would be helpful to start with, assuming you know the VIN.
Thanks,
Scott



positive ground

Posted: 1/26/06 5:00pm Message 10 of 25
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Kingston, TN - USA
Joined: 7/5/2003
Posts: 900
Vette(s): 1970 Vert Both Tops Kiesler 5 Speed Steeroids Rack and Pinion Stayfast Convertible Top
[QUOTE=Pumps]

This is hard for a lot of folks to wrap themselves around, but in direct current, the kind we have in our cars, electrons flow from the negative to the positive. This is kinda hard to understand, since the cars have a negative ground, but it's true. It is the natural flow of electrons. Most physics people credit it to flowing the other way, but in truth, it's negitive to positive, even in a negative ground vehicle.

Dave

[/QUOTE]

Hole flow or conventinal flow. And how many electrons make up an amp?



in Forum: C3 Electrical


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