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Which 15-inch radials should I install on my Superformance MkIII?
The time has come to think about replacing the tires on my Superformance Cobra, either this fall or this spring at the latest.
I'm currently running Goodyear Eagle GT IIs which look the part, but are only S rated for speed and have been no great hell in terms of grip (and they've been discontinued so I can't buy them again even if I wanted to). I'm looking for a modern radial tire that fits my stock 15-inch Halibrands, and that provides the best grip possible for street use/driving. Tire selection in the stock tire sizes -- 255/60R15 (front) and 275/60R15 or 295/50R15 (rear) -- seems to be rather limited. I've identified about seven different choices, below (am I missing any good ones?). Of the radial tires currently available in these sizes, which would you recommend I choose for my Cobra? Which tires are you using, and what do you like/dislike about them? Thanks for the input, Brian NOTE: No matter how cool Goodyear Billboards look -- and they do look cool -- I don't want a bias-ply, non-street legal tire like this. Too expensive, too likely to lead to stone chips, and too prone to flat spotting. Also, I don't want to upsize my wheels from 15 inch to 17 inch or whatever, as I like the classic, "meaty" look for a Cobra. ******************* TIRE OPTIONS S rated tires (max 112 mph or 180 km/h) BFGoodrich Radial T/A http://customwheel.com/custom_wheels...l_ta_large.gif Firestone Firehawk Indy 500 http://treadsource.com/images/P/FS_I..._4rib_w-02.jpg T rated tires (max 118 mph or 190 km/h) Cooper Cobra Radial G/T http://s.shld.net/is/image/Sears/09534724000 Mastercraft Avenger G/T (a Cooper Tire brand) http://stopandgotires.com/models/Avenger-GT.jpg Mickey Thompson Sportsman S/T http://www.softys.ca/image_items/mic/sportsman_st.jpg H rated tires (max 130 mph or 210 km/h) Mickey Thompson Sportsman S/R (in non-metric sizing: 26x10.00R15LT + 28x12.00R15LT) http://www.softys.ca/image_items/mic/sportsman_sr.jpg Kumho Ecsta STX KL12 http://treadsource.com/images/P/KH_KL12-01.jpg |
Brian,
A poll will not save your butt in a corner. If cost is no issue, the Avon CZ66R are #1. Second choice is the Mickey S/Rs. The BFGs are NFG as far as I am concerned and I am now talking customers out of the Goodyear GT IIs, only a fair tire and Goodyear keeps discontinuing sizes so what you can get today may not be avilable tomorrow if you need a replacement. The M/Ts are becoming more popular as they give the Avon casing and quailty (Cooper tire owns Avon, and M/T) at the Goodyear price. |
"I can spin my tires in any gear thanks to my rock hard BFGs."http://www.hazelnet.org/icon/emote/happy/laughlots.gif
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For radials its avons or nothing, in my opinion.
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It doesn't look like Kumho offers anything in the appropriate 15" size for a Cobra.
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Thanks for the feedback so far, guys. Please keep it coming.
Doug, I just double-checked on Kumho Canada's website and they still offer the Ecsta STX in 275/60R15 (107H), but they don't have it listed in 255/60R15 for the fronts. Strange, as my mechanic says he can get 'em and I have seen them listed on other tire sites. Maybe it's old stock. Rick, I think the Avon CR6ZZs might be a bit hardcore, and expensive, for my needs. I had been leaning towards the Mickey S/Rs, but my mechanic has had some bad experiences with those before (i.e., poor quality tires and hassles exchanging them with the distributor) so he's been trying to find me some options. I also read some guys (on SCOF) complaining of chronic flat spotting and out-of-round problems with the Mickey S/Rs. Any idea how isolated or commonplace these issues are with these tires? Other than the BFGs and Firestones, all these other tire choices are gonna be special orders up here in Canada. It adds to the hassle factor and is why I'm trying to gather some input beforehand from fellow Cobra owners. Brian |
Brian,
I just put on a set of Mastercraft Avengers. Very happy with roundness and balance. From the research I did, the Mastercraft Avengers, Cooper Cobras, and MT Sportsman S/T are all the same tire, made by Cooper, just different tread and sidewall pattern. |
I was able to snag the Yokohama Avids before the discontinued them:( But they are absolutely perfect! If I had to buy now, I would heed everyone's advice here. If the Avon's are what most are calling for, I would lean that direction. The forum here gave the right advice from their experiences and it was dead on. As for the BFG's they should be called NFG's! They are as hard as a Preacher's D..K and they leave flat spots after sitting a while. I don't know about Firestones but that was about the only other option I had at the time. The Avon's are probably the best tire for "Our" cars at this time and definitely when others are dropping the sizes we need! Good luck, Matt
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I have not heard about quality issues with the MT S/R tires. Drive down here and we will get you mounted/balanced and you can smile at Canadian Customs ;) |
I have used the Cooper Cobra radials on my roadster since it was built and love them. I also tried a set of Goodyear Billboards and hated them for several reasons which I will not go into here abd went back to the Coopers. First, the Cooper tires were available in the proper widths of 15" for my car. Second, the cost was quite reasonable compared to other brands, and third I kinda liked that they said COBRA on the sidewall and had a cobra snake as part of their logo. These tires wear well, provide good traction, and handle and drive great. For a street only car they are ideal in my opinion. I can't see why I should pay a lot more for another brand.
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I have the M/T SR's on my car and have not experienced flat spotting or out or roundness. This is the only tire I have had on the car so far so I can't say how it compares to other brands but for now I'm happy with them.
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SunDude,
How much did you spend on your car? Your engine/drivetrain? What can you do to your car to increase it's present performance by 20% .... for $1600? Avons. Just sayin. |
I replaced BFGs with Cooper Cobras and have been very happy with them. Much smoother and plenty of grip. I only have 700 miles on these but so far no issues.
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I put 1000 miles on billboards and then switched to MT S/Ts. They do not have as much traction. They ride smoother, don't sand blast the car and offer enough traction for street use. I would recommend.
My last Cobra had BFGs. They do not have near as much traction as the S/Ts. John |
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I'm sometimes amazed at the amount of money someone will put into their car, and then save money on the tires. |
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Did the Bridgestone Academy 4 years in a row (15 years ago :eek:). Best money I ever spent! 289FIA |
Hercules H/P 4000 also available in Cobra sizes
I found another T-rated radial that's available in the stock F/R sizes: the Hercules H/P 4000. But I'd be surprised if anyone has ever put these on a Cobra before...
http://shop.buscohosting.com/wp-cont...s%20HP4000.jpg |
Hey...fellow Canadian Superformance here
I went with none that you listed. The BF Radial T/As I had on were downright dangerous . Without even trying to spin my tires, the rears were worn out to wear bar after 3K ...the fronts looked new. Gives you an idea how easy they are to break loose I now have Mickey Thompson ET Street Radial ( 295/55R and 255/60Rs ) These tires are were picking up small stones in the parking lot when I was rolling them store to my truck ! Relatively soft compound They have no problem handling torque from Dart 427W ( once I'm in 2nd gear ) My only concern is that now car hooks up that much better I will probably start breaking drive line parts The the tread pattern...or lack thereof They were less than $200 each purchased locally in Vancouver |
Tires are the only part of your car that touches the road - shouldn't you consider Avon's? This is kinda like buying speakers for your audio system - the system will only sound as good as your speakers, regardless of the quality of the rest of your system. Tires are the same. Why skimp on the only part of your car that touches the road?
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SunDude
If you are logging a lot of miles like myself (5-6k mi/year) the Avon's are not what you want. From what I have read here they only last 4-5K's. I had the Yoko's for years & they were great at the time. Put a set of M/T's ST on & was amazed at the overall increase in performance & how much nicer the car drives with them. The front end tracks much more comfortable than the Yoko's, it's hard to believe a tire change could have such a dramatic effect. The overall ride is improved & the hook up is amazing. I'm using--295/50/15 & 245/60/15. About $145 & $112 respectively plus tax of course. Craig |
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