Avon Tires Cr6zz

[cdog]

I now have the Avons. They are very sticky, tossing up loose gravel quite a bit. They seem smooth, stable. Much better than the BFG's I pulled off.

Any ideas on pressure? I ran 20 in the BFGs but have been running 26-28 in the Avons.

[bret a ewing]

I have a BB al engine and as suggested by another member on this site......28psi cold F&R. So far, awesome.

[ou812545]

Those with the Avons, Can you post some pictures and what sizes you went with? I'm sure we would all love to see how they look as well...

Thanks,

Dan

[bret a ewing]

F - 245/60R15
R - 295/50R15


i'll get some pics tomorrow (If the weather clears)

[bret a ewing]

BTW,

They are "V" rated DOT and in stock @ Sasco Sports 434-822-7200

$317 - 245's
$373 - 295's ......uh, that's each.

[patrickt]

My little Extech Pyrometer from Lowes cost me about $75. Instant, accurate temps on the fly, and in real time (or with max and min) with a pull of the trigger and it has a little red laser pointer so I know where I'm shooting. I take the temps in the middle of the tire and about an inch in from each side. If the center of the tread is hotter than edges, the pressure is too high. If the edges of the tread are hotter than the center, pressure is too low. You can also see the effects of camber. For instance, if the inner edge is hotter than the outer edge, the suspension has negative camber. I adjust the tire pressure so that the middle of my tire has a temperature that is mid way between the two outer temperatures. Other fun things to do with a pyrometer on your Cobra: Check the efficiency of your radiator, check when your thermostat is opening, check the efficiency of your oil cooler, check the temps of each one of your header tubes, see what temp your brake pads are running, and so on, and so on. You can also use it to check the temperature of the stove, refrigerator, the kids when they come down with a fever, etc.

[Fred Z]

For what it is worth........I have been down to Hillbank Motorsports in Irvine , Calif.....and they have different tires available for their cars. One of the new options are the Avons! They actually sell their cars with them if that is your preference. Also, long ago, probably early last year, I had the info on the Avons....and had brought it up on this site, and FFR's. Not much knowledge at that time from most , but after extensive research, I found they have been using them in Europe for awhile, and they are 'the tire' there for racing enthusiasts!! I know they are expensive, but when your only insurance and defense are........your shoes.........you just deal with price and rest knowing you have the best you can get. Now, 17's are a different matter. I, however, like most of you, like the 15' look. I am waiting to see if, or when, they might offer these with raised white letters. Once that happens.......they will be mine.
fred z
ps. It looks like Amer. Racer might have the tire and the lettering in development. Not sure, but would guess they would.

[DMXF]

Can someone post the measured outside circumference of the front and rear 245 and 295 Avons, preferably mounted (at the center of the tread)? Thanks

[bret a ewing]

http://www.rogerkraustires.com/Avon/AVCR6ZZ.shtml

Here ya go.

[DMXF]

Originally Posted by bret a ewing

http://www.rogerkraustires.com/Avon/AVCR6ZZ.shtml

Here ya go.

Thanks Bret, but Roger just posts the numbers from the manufacturers, which are often not exact. For example, I recall the "billboard Cobra tires" show as having the same height front and rear, when in reality there is about a 1/2" difference in diameter.

[Calbullet]

http://www.clubcobra.com/forums/atta...1&d=1209490049
DSC01001a.jpg

hope this worked

[ou812545]

Looking forward to seeing pictures of the Avons on an SPF.

[Calbullet]

Dan here's a link to a pic of my car http://www.eurosunday.net/sacramento...s/100_1212.htm

245 fronts and 295 rearsl

[Silverback51]

Originally Posted by Calbullet

Dan here's a link to a pic of my car http://www.eurosunday.net/sacramento...s/100_1212.htm

245 fronts and 295 rearsl

Link says "Not Found"

I went back and altered the link and this worked.

http://www.eurosunday.net/sacramento...-steve/slides/

[Scott Hatcher]

I just got the Avons last week from Roger Kraus. Same price as Bret. Then spent another $70 for 24 hour shipment to Las Vegas. I was running Goodyear Billboards and was tired of the bounce and the tracking every groove in the road. Wow, what a difference.

Next week I will be at Willow Springs for the COCOA event. I'll be there Friday for test and tune day. I'll run the Avon for a couple of laps then change to the Goodyear slicks. When I get home I'll give you a report.

Scott

[bret a ewing]

Scott,

Thats the kind of testing feedback we REALLY need, good luck and god speed.
This aughta be great!

[bret a ewing]

Mmmmm, only tried once, hot day, asphalt surface, tires were brand new (but heat cycled). Hopped so bad I had to get out of it. You could actually see small pieces of chunked rubber still sticking to the tire. Wont do that again!

[Scott Hatcher]

I promised you a report regarding the Avon Tires on the track.

We arrived at Willow Springs late Thursday night in preparation for the "Test and Tune Day" on Friday. The plan was to test the Avons Friday morning compared with the Goodyear Slicks and spend the rest of the day practicing with the Godyear slicks for the COCOA event on Saturday and Sunday.

Well, here is the report but not with the outcome I personnally wanted.

We pulled the car off the trailer at 8:30 am Friday morning. The Avons were already on the Cobra. The tire pressures were checked. 29lbs in the rears and 29.5lbs in the fronts. Because these tires are still a street tire and not a track only tire, we felt that the tire pressure should not be less that that.

The Cobra was on the track by 9:00 am with a six (6) lap warm-up. On the second lap, the Cobra spun-out at the bottom of Turn #5. For those who have not been to Willow Springs, this is a rather sharp downhill with a turn to the left at the bottom. You can develop some good speed down the hill with braking as you approach the bottom of the hill to make the turn. Tires were still a little cold and the car did a 360 but never left the pavement. Back in first gear and up the next hill to Turn #6 and the continuation of the test. Top speeds on the back and front straight-aways were about 125. The remainder of the first session was uneventful.

Upon arrival in the pits we examined the tires. They showed some scuffing but not excessive. Tires were warm but not hot. Tire pressure went up a couple of pounds. Did not check temps for this session. It was planned to do that after the next session.

About 10:00 am we left the pits for the second session. On the third lap after coming out of the wide sweeping Turn #2, I shifted into fourth, lost power and had smoke billowing out from under the hood. Had the tow truck pull me back in to the pits. We pulled the plugs to examine them. The first two had water on them. OK, so maybe it was only a blown head gasket. Nope! The third plug was broken with half of the center porcelian gone.

Long story short...........we pulled it back on the trailer and headed back to Las Vegas. Drove straight to Tom's Motorsports and pulled it off the trailer. Tom took his scope and we looked throught the spark plug hole to see the piston and cylinder walls. Much to our surprise, there was no piston. Just the connecting rod and the piston pin. Looks like it's time for a new engine. We'll get more information after we tear down the motor.

OK, so back to the tires. Here are some of my impressions of the Avons.

1. On the street, these tires are very smooth, do not track every rut in the road and have very good grip. My rear end has not slipped sideways like it did when I had the BFGs on.

2. I have no trouoble with the 245s on the front and 295s on the rear.

3. Although I did not get a chance to run the Goodyears this weekend, I have run them on this track numerous times.

4. On the track, the Avons have good grip, however, if the tire looses it's grip there is no warning. The car will slide out quicker than you can adjust or catch it. The Goodyear slicks will give you an indication that they are going just before they leave. In some cases, you can compensate and save the car from the skid. Part of this is that the Avons are a radial tire and the Goodyears are bias.

5. Because these tires do grip and get scuffed, the longevity of the tire and the tread will be greatly reduced. And at the price these tires cost, you need to consider the track tire you will use.

6. To a point, the comparison is not fair because the Avons has 29lbs and I run the Goodyears at 23lbs.

7. My conclusions are that if you have the money and storage space, you should have two sets of tires. One for the street and one for the track. If this is not feasible, then the Avons could be a good compromise for the one set of tires.

Thats' my two cents!!

[mr0077]

Scott, good info on the tires (excuse me, "Tyres"), but BUMMER on the motor! Between you and Terry...
Let us know what you and Tom find, OUCH! Sounds like it might be time for you to talk to one of the CC engine guys about a side oiler, eh?

[Scott Hatcher]

Ken,
If it's not repairable I will probably switch from the CO to an aluminum SO.