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Topic: 70 versus 60 series tires

in Forum: C3 Engines, Driveline and Handling


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70 versus 60 series tires

Posted: 5/8/05 7:30pm Message 1 of 12
Hinz-73
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Joined: 2/15/2004
Posts: 123
Vette(s): 1973 L-48 Coupe. Classic white with black leather interior.

Is there any advantage to running the "near original" sized 70 series tires versus the better handling 60 series tires? 

I am planning on switching back to the original rims.  Tire considerations -  either 245 60R15 (x4) or 225 70R15 (x4).

Thanks,

Bret




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70 versus 60 series tires

Posted: 5/8/05 7:47pm Message 2 of 12
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kstyer
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CUYAHOGA FALLS, OH - USA
Joined: 12/2/2003
Posts: 6424
Vette(s): 1975 C3 Red, T-Tops, Black Interior. All I need is time and money! Getting there!

You don't have the problem of possible rubbing.  And It will ride better with the 70s.




70 versus 60 series tires

Posted: 5/8/05 8:48pm Message 3 of 12
Hinz-73
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Joined: 2/15/2004
Posts: 123
Vette(s): 1973 L-48 Coupe. Classic white with black leather interior.

Thanks again Ken.  Your posting is really appreciated. 

I was also thinking that being the car was designed with 70's, it would be easier on the suspension hardware.  I am interested in long  drives, so durability is a consideration.

70's it is.

Bret

 




70 versus 60 series tires

Posted: 5/8/05 10:13pm Message 4 of 12
Daytona69
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Fountain Valley, CA - USA
Joined: 9/11/2003
Posts: 407
Vette(s): 1969 Daytona Yellow Coupe - ZZ4/4 speed, Hurst shifter, Griffin aluminum radiator w/ Dual Spals, March Serpentine Pulley kit, Hookers with STS Racing Baffles, VB&P Suspension bits, 17" AR Hopsters, L-88 Hood
I had BF Goodrich Radial T/A 245/60/15's on the original rallys when I had my '70 and the car rode great with no rubbing at all.


70 versus 60 series tires

Posted: 5/9/05 6:11am Message 5 of 12
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Gunslinger
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Frederick, MD - USA
Joined: 9/8/2003
Posts: 3398
Vette(s): 1969 convertible L71 427/435 4-speed black interior
Chevrolet didn't start making 60 series tires available on Vettes until '78, and opened up the fender wells for clearance. Not that earlier cars can't run with them, but there is a possibility of rubbing...that seems to be a car by car thing.

With the extra rubber on the ground with a 60 series, it takes extra steering wheel effort as well. My '78 with 60 series BFG's and power steering has about the same steering effort as my '69 big block without power steering and 70 series rubber.


70 versus 60 series tires

Posted: 5/9/05 8:34am Message 6 of 12
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cthulhu
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Hot Springs, AR - USA
Joined: 4/24/2004
Posts: 3236
Vette(s): 69 Conv #'s match 427, TKO-600/.64, 3.36HD-Posi, HT, T/T, PS, PB, PW, SP, Leather, Comp XE264HR & Roller Rockers & Lifters, Air-Gap RPM intake, Holley St Av 770 VS, MSD 6AL+Dist+Blaster SS, K&N, Jet-Hot Hooker Side-Pipes, Steeroids, Al Rad, Spal Fans

I personally have run 255/60/15 on both my c3's ive had..

I like the better handling of the 60..  the change in ride quality is insignificant.

225/70 and 255/60 are both 27" tires..  so the diameter is correct..  245/60 is a little short..




70 versus 60 series tires

Posted: 5/10/05 4:16am Message 7 of 12
mini
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Austria
Joined: 11/20/2003
Posts: 30
Vette(s): new gm performance engine(zz383/425),,borla exhaust system. about 400hp rwhp!baer track 13"brake front and rear.th700r4. completly restored. great car i superb condition.19" schott american wheels(new), new paint,superram injection,

hi

i drive an 1981 with 255 /45 /18.

never again stock 60 or 70 tires the difference is unbelievable,spezial in curves.

new shocks to it and you can drive fast(i have 450hp)




70 versus 60 series tires

Posted: 5/10/05 6:41am Message 8 of 12
Hinz-73
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Joined: 2/15/2004
Posts: 123
Vette(s): 1973 L-48 Coupe. Classic white with black leather interior.

 

Mini,

Can you post a pic.  Your car sound awsome.

Bret




70 versus 60 series tires

Posted: 5/10/05 6:46am Message 9 of 12
mini
Former Member
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Austria
Joined: 11/20/2003
Posts: 30
Vette(s): new gm performance engine(zz383/425),,borla exhaust system. about 400hp rwhp!baer track 13"brake front and rear.th700r4. completly restored. great car i superb condition.19" schott american wheels(new), new paint,superram injection,

Hi Bret

i will i am not at home this week i will sent them this weekend

cheers




70 versus 60 series tires

Posted: 5/18/05 1:49am Message 10 of 12
zgator
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Savannah, GA - USA
Joined: 1/20/2005
Posts: 936
Vette(s): 1982CE,32,000 and counting. (fast!!) 1981 Vette, black on black. ZZ4 (quick!!)
I've got 60's on othe my 82 Vette and 71 Z/28.The onlt thing I don't like is the water plane issue.That will scare the bejesus out of you and I've been driving on them for close to 35yrs.


in Forum: C3 Engines, Driveline and Handling


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