C3 Tech/Performance V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette
Sponsored by:
Sponsored by:

Tires

Thread Tools
 
Search this Thread
 
Old Apr 12, 2021 | 11:53 AM
  #1  
Red1977Vette's Avatar
Red1977Vette
Thread Starter
Intermediate
 
Joined: Mar 2016
Posts: 49
Likes: 0
Default Tires

Hi all,

I just put a set of Hancook 255 60\15's on my '77 to complete my suspension rebuild. The rear end is all new - the front has new shocks, a new power steering pump and cylinder. I left the front coils for when I rebuild the A-arms. I had previously had 225 70R15's on the car but they were, he says embarrassingly, from what I could tell some 33 years old.

Observation - the car rides COMPLETELY different now than it did before. It's very nice and controlled but...and I don't know if this is the way the car SHOULD handle or not, it's very easy to steer now. She corners great and all but before, with the smaller albeit older tires, the steering felt much heavier. Especially in parking lot type maneuvers. Now it's as easy to steer as an old Cadillac. Not complaining just wondering if that's the way it should be.

The old tires might just as well have been square, stone wheels but I'm just wondering if the larger rubber could, in fact, make the car that much easier to steer. I mean, I'd think that the bigger tires would make the car harder to steer, no?
Reply
Old Apr 12, 2021 | 12:00 PM
  #2  
MelWff's Avatar
MelWff
Race Director
20 Year Member
Liked
Loved
Community Favorite
 
Joined: May 2006
Posts: 18,662
Likes: 2,563
Default

what tire pressure are you running?
did you have the new PS pump and cylinder on when you had the old tires?
Reply
Old Apr 12, 2021 | 12:20 PM
  #3  
Red1977Vette's Avatar
Red1977Vette
Thread Starter
Intermediate
 
Joined: Mar 2016
Posts: 49
Likes: 0
Default

Good question about the pressure. I take it's at the PSI the shop inflated them at. I had the tires mounted at a shop after Tirerack dropped them off. I know the fronts are supposed to one pressure and the backs another.

Yes. The pump and cylinder where on the car with the old tires.
Reply
Old Apr 15, 2021 | 11:24 AM
  #4  
MelWff's Avatar
MelWff
Race Director
20 Year Member
Liked
Loved
Community Favorite
 
Joined: May 2006
Posts: 18,662
Likes: 2,563
Default

You didn't install 1977 technology tires.
Buy a decent analog or digital tire gauge and check the pressure cold.
Should have at a minimum 30 psi both front and back.
Reply
Old Apr 15, 2021 | 12:10 PM
  #5  
Sayfoo's Avatar
Sayfoo
Safety Car
Veteran: Army
20 Year Member
Liked
Community Favorite
 
Joined: Sep 2005
Posts: 4,213
Likes: 643
From: Orange County Ca
Default

Most tire shops will over inflate tires when you get new one. Probably a liability thing.
On my '69 BB with 255/15/60 Cooper's, I run 28 ft and 26 rear (per my gauge) and the tires wear evenly.

Last edited by Sayfoo; Apr 15, 2021 at 12:11 PM.
Reply

Get notified of new replies

To Tires





All times are GMT -4. The time now is 07:39 PM.

story-0
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-1
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE
story-2
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

Slideshow: Ranking the top 10 Corvette engines by torque output.

By Joe Kucinski | 2026-05-05 11:58:09


VIEW MORE
story-3
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

Slideshow: A Corvette pace car nearly matching IndyCar speeds sounds exaggerated, until you look at the numbers.

By Verdad Gallardo | 2026-05-04 20:03:36


VIEW MORE
story-4
Top 10 Corvettes Coming to Mecum Indy 2026!

Among a rather large group of them.

By Brett Foote | 2026-05-04 13:56:44


VIEW MORE
story-5
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

Slideshow: the top 10 things Corvette owners want in the C9 Corvette

By Michael S. Palmer | 2026-04-30 12:41:15


VIEW MORE
story-6
10 Revolutionary 'Corvette Firsts' Most People Don't Know

Slideshow: 10 Important Corvette 'firsts' that every fan should know.

By Joe Kucinski | 2026-04-29 17:02:16


VIEW MORE
story-7
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

Slideshow: Should you buy a 2020-2026 Corvette or wait for 2027?

By Michael S. Palmer | 2026-04-22 10:08:58


VIEW MORE
story-8
2027 Corvette vs The World: Every C8 vs Its Closest Competitor

Slideshow: 2027 Corvette lineup vs the world.

By Joe Kucinski | 2026-04-24 16:12:42


VIEW MORE
story-9
10 Most Common Corvette Problems of the Last 20 Years!

Slideshow: 10 major Corvette problems from the last 20 years.

By Joe Kucinski | 2026-04-14 16:37:05


VIEW MORE