Join Date: Jan 2002
Location: Calgary, Canada
Re: 69 Z28 tires E70/15 Goodyear's or Firestone's?
Maybe the word scary is the wrong term to use, maybe it should have been freaky? Let me define my term "scary" - Driving on a well maintained major road in Calgary ( 45 mph limit ) it was very unerving, the car would dart this way or that with no ryhme or reason. This was particularily noticed it seemed when other cars were beside you making it even more eye opening.
I had this car stored for about 8 years with old belted tires and they were about the same to drive on as the bias plys.
Now maybe if you played with the alignment specs including more neg. camber to achieve a greater contact patch, it would have helped the situation. My car had a current wheel alignment with a little more + camber than stock, the Z28 original specs use a lot of negative camber, which chops off tires IMHO. The front suspension is in good shape by the way, with a NOS Idler arm and NOS bushings.
The wheels and tires were spun balanced on a state of the art tire balancer, and at least 2 of the tires took a awfull lot of weight also. They were inflated to factory specs. Coker tire does not sell the Goodyear Wide Tread tires by the way, they come from Kelsey Tire.
I have driven some cars with reproduction BELTED tires and they were not to bad to drive on.
My common sense told me to take the reproduction Wide Treads off and put my 15 year old Eagle GT radials back on, but that is my opinion, so please make your own decisions. Personally i will never use them again.
2002 Jerry Bickle Cavalier, 446" Small Block, Brodix Canted Valve, lenco 5 speed, 7.54 @ 180. mph,1.06 60', 2235 lbs for 2014. GM Canada Docs, Highly Optioned 69 RSZ28 , Hugger Orange, White Stripes, 42,000 mile survivor, owned since 1973.