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I changed to non runflats and have never looked back. I bought a small pump/puncture solution from Tire rack and keep it in the trunk. I know, I know--the puncture solution will probably ruin the TPS. That's ok, I'll spend the $100 or so to replace it if it's ruined, I just want to be able to go down the road if I get a flat. The non-runflats ride better, make much less noise and all around are great tires compared to the run-flats. There are several great non-runflats to pick from, just cruise this forum. Good luck, Ron
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I've run both runflats and non-runflats on my C5s. Yes, overall the non-runflats will usually give you better performance, but not all runflats are that bad. Michelin makes a very good runflat as does Firestone. I ran the Firestone Firehawks on my last C5 and I was very pleased with the handling, ride, lack of noise and tire wear.
I changed to non runflats and have never looked back. I bought a small pump/puncture solution from Tire rack and keep it in the trunk. I know, I know--the puncture solution will probably ruin the TPS. That's ok, I'll spend the $100 or so to replace it if it's ruined, I just want to be able to go down the road if I get a flat. The non-runflats ride better, make much less noise and all around are great tires compared to the run-flats. There are several great non-runflats to pick from, just cruise this forum. Good luck, Ron
exactly; Don't like the noise of runflats and DO need the traction of Non runflats
I've had it both ways and non runflats seem to be better tires. I just feel more secure on a road trip with runflats.
the problem isn't with the run-flats overall design; on the C5 the culprit is the specific Goodyear tire GM put on all of them; which had a 200 mile zero-air-pressure rating.
For the C6, GM went with a EMT that only offered a 100 mile rating; and that greatly improved the performance of the tire.
To this day, I believe Goodyear is still the only one that makes a 200 mile rated EMT tire for the C5 Corvette.
When I switched from the factory Goodyears to Firestone Wide-Oval runflats... it made a world of improvement.
I wonder how many tires Chevy engineers tested in C5 development and what was their true thoughts when they settled on the F1 EMT?
Surely it was tested on the track during the development trials. It had to meet some level of standard considering at the time this was one of the most hi-performace factory vehicles under 100K.
I've been considering moving back to F1 EMTs when I go through this set of Michelin's A/S ZPs. Either that or giving the PS2 ZP a shot.
My suspicion is that a brand new set of F1 EMTs are just as quiet as the next set of brand new tires. Even the A/S ZPs get noisy as they get into their mid life range. Performance on all of them starts dropping off as you move through their half life as well.
I keep seeing everybody trashing the Goodyear OEM runflats. I drive a convertible, only with the top down, so maybe that is why I don't hear any noise from the tires and I don't autocross or drive in the rain (intentionally) so I only can evaluate, summer dry driving. I don't hear any road noise and the tires handle fine, plus I don't have to worry if I get a flat.
Look at the ratings on the EMT tire VS the non EMT Goodyear:
That's not really a fair comparison as they are totally different model tires. If it were a comparison between the GS-D3 and the GS-D3-EMT, that would an apples to apples comparison. However, they don't make GS-D3-EMT in C5 sizes.
No runflats here as well and don't think I'll ever go back to them.
I was running Bridgestone Potenza RE960AS in stocks sizes and loved them.
I then upgraded to a set of CCW's and Pirelli P-zero Rosso's(which I think my tax refund will be replacing. Good tires just not for me).
Last edited by Lancejoker; Jan 27, 2010 at 07:22 PM.