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Thread: Wheels and tires for a 55 C4 conversion

  1. #31
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    I am no defender of Cnut's conduct but Rd's conduct is no better - they just insult each other and feed off each other's comments. To me it's when it extends to "innocent" members that they are truly out of line - and that happens.

    On the benefits of IRS, where IRS has the most advantage is with marginal track or road surfaces.

  2. #32
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    Rick are you saying the main advantage of independent rear is for bumpy road surface? Better ride? What about quickness thru a road course vs a NASCAR type solid axle? I would think the vette suspension was specific for low CG and less weight....maybe not?

  3. #33
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    The IRS is less sprung weight (not necessarily lower total weight). This means the springs and shocks have an easier job of keeping the tires on the pavement and that's why they do better on rough roads - both for ride and performance. Lower C.G. height helps any suspension.

  4. #34
    Registered Member 55 Rescue Dog's Avatar
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    Some IRS suspensions are great, especially on the newer cars. Chevrolet's first attempt in 1960 with the swing-axel Corvair might not of been so great, but they had it much improved by 1964 by using softer springs, a front sway bar, and a auxiliary traverse leaf spring. My first car was a yellow Corvair Syder Turbo, and that car was a blast to drive in its day. Too bad Nader killed a good car. The Yenko Stingers could spank a lot of cars back then, and still can. In 1965 they went fully independent with the same basic design as the C2, C3, and even the C4 isn't that much different. It changed dramatically on the C5.
    As far as tires on a C4 Tri5, I would love to use a 255/50-17's which are 27 inches tall, and would look and work great. But there are only like 2 available tires in that size, and they are not that great. The only production car that used that size were the 94-96 Impala SS, and the demand is low in that size. I think any tire near 26 inches or less just looks too small on a big car. A 245/45-17 for example was a production size used on smaller cars like the 2004 Mustang, and GTO. The biggest selection of taller max performance summer tires seems to be mostly in the 18 inch sizes.

    https://images43.fotki.com/v249/phot...pension-vi.jpg
    Last edited by 55 Rescue Dog; Today at 03:02 PM.

  5. #35
    Registered Member 55 Rescue Dog's Avatar
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    Yenko Stinger. A 108 inch wheelbase car replaced by the Camaro with no IRS, and engine back to the front. Well now finally, along comes the Corvette C8.

    https://www.youtube.com/watch?v=eTGayn3Y800
    Last edited by 55 Rescue Dog; Today at 03:05 PM.

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