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Old May 1, 2005 | 08:22 AM
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Default air pressure

What Is Correct Air Pressure For Tires On 1979 Vette Stock
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Old May 1, 2005 | 08:53 AM
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32 PSI for both 225-70-15's and optional 255-60-15's including temporary spare 195-80-15.
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Old May 1, 2005 | 09:00 AM
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From: Arlington Va Current ride 04 vert, previous vettes: 69 vert, 77 resto mod
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why do you suppose on my 77 they have a door decal that says 20 front and 26 rear? its seems awfully low.
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Old May 1, 2005 | 09:04 AM
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mine says 30 front and 35 rear then another sticker says 20 front and 26 rear
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Old May 1, 2005 | 09:28 AM
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lower air pressure will give a softer ride...best all around pressure IMHO is 32
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Old May 1, 2005 | 09:34 AM
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From: Arlington Va Current ride 04 vert, previous vettes: 69 vert, 77 resto mod
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Originally Posted by WALTER51
mine says 30 front and 35 rear then another sticker says 20 front and 26 rear

thats TWO funny.....
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Old May 1, 2005 | 09:34 AM
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Originally Posted by bobs77vet
why do you suppose on my 77 they have a door decal that says 20 front and 26 rear? its seems awfully low.

Could it be because of bias ply tires? I don't know when radials came out.
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Old May 1, 2005 | 10:06 AM
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Originally Posted by Eddie 70
Could it be because of bias ply tires?
YUP



Originally Posted by Eddie 70
I don't know when radials came out.
MID 70'S...
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Old May 1, 2005 | 10:07 AM
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Read section 5 of the owners manual.For 78,they are refering to load range"B" radial tires.
But in no way would I run 20 PSI on the front for street.Not even 25.
32 PSI works good and allows for increases of 4-6 PSI for sustained driving which occurs when tires heat up.
Autocross is another matter. I used to start with 34 front,32 rear.
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Old May 1, 2005 | 10:22 AM
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From: Arlington Va Current ride 04 vert, previous vettes: 69 vert, 77 resto mod
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not that i'm endorsing this..... only reporting what the owners manual says....77 does have radial tires on it and yup 20lbs front 26 rear
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Old May 1, 2005 | 11:55 AM
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Originally Posted by bobs77vet
not that i'm endorsing this..... only reporting what the owners manual says....77 does have radial tires on it and yup 20lbs front 26 rear
Yep.My placard says same.But what "comfort" is there running tires under inflated ??? Reminds me of the Ford Explorer/Firestone fiasco.Heh.
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Old May 1, 2005 | 07:48 PM
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Originally Posted by Eddie 70
Could it be because of bias ply tires? I don't know when radials came out.
they came out with the 73 model year
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Old May 1, 2005 | 09:19 PM
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Originally Posted by rihwoods
32 PSI for both 225-70-15's and optional 255-60-15's including temporary spare 195-80-15.

been looking for the "correct" spare for the 79. 195-80-15?? what kind of rim was that on??? a little donut spare? or something else? where can i find one?
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Old May 1, 2005 | 09:23 PM
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Steel rim.15 ". You can fit a 205-70-15,if you want.
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Old May 1, 2005 | 09:27 PM
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Originally Posted by rihwoods
Steel rim.15 ". You can fit a 205-70-15,if you want.

That is what I have also.
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Old May 1, 2005 | 10:40 PM
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Originally Posted by rihwoods
Steel rim.15 ". You can fit a 205-70-15,if you want.
steel rim. like the steel rallye wheel?? so it's not a "donut" spare?
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