tubbing a C3
Thread Starter
Melting Slicks
Joined: Dec 2000
Posts: 2,130
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From: mesa,az
tubbing a C3
as i try to figure how to tub my 75 i see that the back window and deck are going to limit me somewhat. anyone have any experiance here they can share with me. i would like to get a 31 x 17 inch tire under there but i think it's gonna be tough.
thanks
greg
thanks
greg
Race Director
Joined: Jan 2003
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From: State of Confusion
Originally Posted by panchop
as i try to figure how to tub my 75 i see that the back window and deck are going to limit me somewhat.
Instructor
Joined: Feb 2005
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Originally Posted by panchop
as i try to figure how to tub my 75 i see that the back window and deck are going to limit me somewhat. anyone have any experiance here they can share with me. i would like to get a 31 x 17 inch tire under there but i think it's gonna be tough.
thanks
greg
thanks
greg
Race Director
Joined: Jan 2003
Posts: 15,176
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From: State of Confusion
Originally Posted by cruzzin-style
The rear window shouldn't be an issue..... Don't know about the 31 tall tires either, but "stuffing" the rear with the largest tires possible back there will look "cool" no matter what.
on pre-'78 Corvettes, this bar is mounted much-lower on the main hoop, to clear the flat deck
(which I'd taken a picture of the local guy's '72 way-back-when...)
I'm 'guessing' he ran 32" x 14"s, too.....
Instructor
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Originally Posted by Glensgages
I think the short-window/flat-deck C3s present problems with the diagonal bars, running from the rear on the main hoop, to the rear area (bumper?) of the frame-rails:
on pre-'78 Corvettes, this bar is mounted much-lower on the main hoop, to clear the flat deck
(which I'd taken a picture of the local guy's '72 way-back-when...)
I'm 'guessing' he ran 32" x 14"s, too.....
on pre-'78 Corvettes, this bar is mounted much-lower on the main hoop, to clear the flat deck
(which I'd taken a picture of the local guy's '72 way-back-when...)
I'm 'guessing' he ran 32" x 14"s, too.....
Forget The stock frame rails. You'll have to fabricate a 4-link rear. It has been done. If I can find some of the old pics I have of this set-up, i'll post 'em.
Race Director
Joined: Jan 2003
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From: State of Confusion
Originally Posted by cruzzin-style
Forget The stock frame rails. You'll have to fabricate a 4-link rear. It has been done. If I can find some of the old pics I have of this set-up, i'll post 'em.
I've raced against a few of these type Corvettes, and am planning-on building my old '80 into just such a car.
The short-window/flat-deck cars limit where the diagonal-bar, from the top of the main hoop to the rear of the car, can be located (I think I've even seen a few that have these bars pass THRU the window, 'notch' the deck, and the bars go back-THRU the deck.....WAY-'Bubba'), regardless of using stock frame rails or narrowed frame-rails.
The problem is a 'horizontal'-issue, and has nothing to do with the width of frame-rails:
'78-up Corvettes offer more room for these bars to be located.
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Burning Brakes
Joined: Feb 2004
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From: shawnee ks
Originally Posted by Glensgages
I know exactly what you are talking about:
I've raced against a few of these type Corvettes, and am planning-on building my old '80 into just such a car.
The short-window/flat-deck cars limit where the diagonal-bar, from the top of the main hoop to the rear of the car, can be located (I think I've even seen a few that have these bars pass THRU the window, 'notch' the deck, and the bars go back-THRU the deck.....WAY-'Bubba'), regardless of using stock frame rails or narrowed frame-rails.
The problem is a 'horizontal'-issue, and has nothing to do with the width of frame-rails:
'78-up Corvettes offer more room for these bars to be located.
I've raced against a few of these type Corvettes, and am planning-on building my old '80 into just such a car.
The short-window/flat-deck cars limit where the diagonal-bar, from the top of the main hoop to the rear of the car, can be located (I think I've even seen a few that have these bars pass THRU the window, 'notch' the deck, and the bars go back-THRU the deck.....WAY-'Bubba'), regardless of using stock frame rails or narrowed frame-rails.
The problem is a 'horizontal'-issue, and has nothing to do with the width of frame-rails:
'78-up Corvettes offer more room for these bars to be located.
Thread Starter
Melting Slicks
Joined: Dec 2000
Posts: 2,130
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From: mesa,az
i am going to back half it, sorry thought that was a given with the tubbs. Just looking at the body it seemed like i was going to either run out of room under there or have to sit the body up higher then stock. could be i'm mistaken.
Burning Brakes
Joined: Feb 2004
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From: shawnee ks
Originally Posted by panchop
i am going to back half it, sorry thought that was a given with the tubbs. Just looking at the body it seemed like i was going to either run out of room under there or have to sit the body up higher then stock. could be i'm mistaken.
Race Director
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From: State of Confusion
Originally Posted by big632
You dont use a diagonal bar on top.
If you click this link.....
http://www.swracecars.com/roll_bars.asp
Unless I'm missing the obvious, I'd think the two diagonal bars, from the top of the main hoop, to the rear of the car (rear wheel tubs?), in either 8-point bar, or 10-point cage, would not clear the short-window/low-deck of a pre-'78 Corvette:
oddly, S&W offers the same bar/cage package for ALL C3s.....
Burning Brakes
Joined: Feb 2004
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From: shawnee ks
Originally Posted by Glensgages
big632:
If you click this link.....
http://www.swracecars.com/roll_bars.asp
Unless I'm missing the obvious, I'd think the two diagonal bars, from the top of the main hoop, to the rear of the car (rear wheel tubs?), in either 8-point bar, or 10-point cage, would not clear the short-window/low-deck of a pre-'78 Corvette:
oddly, S&W offers the same bar/cage package for ALL C3s.....
If you click this link.....
http://www.swracecars.com/roll_bars.asp
Unless I'm missing the obvious, I'd think the two diagonal bars, from the top of the main hoop, to the rear of the car (rear wheel tubs?), in either 8-point bar, or 10-point cage, would not clear the short-window/low-deck of a pre-'78 Corvette:
oddly, S&W offers the same bar/cage package for ALL C3s.....
Race Director
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From: State of Confusion
Originally Posted by big632
Yes they clear.they are much shorter than you think. I was talking about a diagonal link on the rear end used like a track locator.
was talking-about bars in the cage all the time!
Thread Starter
Melting Slicks
Joined: Dec 2000
Posts: 2,130
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From: mesa,az
Originally Posted by Twin_Turbo
if panchop wanted a cage he should not have let mine leave his garage LOL, that was a 12 pnt S&W cage 
1st Gear
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You dont use a diagonal bar on top. You use a panard bar or a wishbone track locater. As I have repeatedly said before it is no problem to do any vette. I have done midyears c4s c3s year makes little diff.You can also do it with or without a cage depending on what you are going to do. I use a 2x4 clip which allows complete safety on high hp cars without a cage.Sanctionig bodies require cages so those are done too.I prefer a cage. The only way I do them is to cut the car in half,any other way is half-***.That way my new clip is jig welded put in place welded up to the car and squared to 1/16th diagonally to the front ball joints and straighter than it left the factory.Your new car will drive better than it ever did and you can put as little or big a tire as you want. 32x 16 slicks or 32x17.5 et streets are what I run.A back half will drop your weight app 300lbs with lighter components.200 minimum even with no aluminum.Such as center section and brakes.
