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Rory Christianson 12-28-2012 01:08 PM

Tire size suggestions and brand
 
Can anybody suggest a front and rear tire size for me being used on 69 corvette stocker. Mainly heights is what I am concerned with front to back
And which brand you are having the best luck with ?

Thanks in advance

Bob Pagano 12-28-2012 01:21 PM

Re: Tire size suggestions and brand
 
M/T on ten inch rim

Myron Piatek 12-28-2012 07:09 PM

Re: Tire size suggestions and brand
 
Look at photos from national and divisional events. I think you'll see that Hoosier tires are the most popular. They have worked well for me.

Rear tire height should be as tall as you can go within the rules and not rub. (30" max.) A taller tire theoretically puts a little bit more rubber on the track. Then you can decide on bias ply or radials. Radials don't grow and will give more rpm's at the finish line. They tend to be .10 faster but more sensitive to track conditions. 10" rims with 9" tires is common.

If you have a consistent staging and launch rpm, try to chose a tire height that helps get/keep your reaction times within a comfortable margin. Taller will be a bit slower and shorter will be a bit faster. (Michael Beard can be more specific about the differences.) A 24" front tire may help a slow car/driver, but doesn't necessarily look good.

Michael Beard 12-28-2012 07:31 PM

Re: Tire size suggestions and brand
 
Quote:

Look at photos from national and divisional events. I think you'll see that Hoosier tires are the most popular.
LOL Well, that's one way to pick a tire. ;) If you look at winner's circle photos, you'll see that Fletcher "and a few others" runs Mickey Thompson tires. :rolleyes:

Quote:

Then you can decide on bias ply or radials. Radials don't grow and will give more rpm's at the finish line. They to be .10 faster but more sensitive to track conditions.
Bias plys have more meat on them. They're slower than radials, but last significantly longer. M/T's don't require a lot of burnout, and I'm thinking my 14x32's will probably dry rot before I wear them out. LOL The M/T radial is more like .012-.013 quicker than a bias ply. I ran the M/T 3066R 30x9 radial full time when my car was a Stocker, even when bracket racing. Unless there was something on the starting line, or the cords were hanging out of them, they printed tickets like crazy. I've heard all kinds of numbers from people about tire life from radials. A lot of Stocker guys will tell you 40-60 runs, and 25psi. I ran mine at 18-19psi, and got 110 runs out of them like clockwork. Mine was still on a narrow rim too.

Quote:

If you have a consistent staging and launch rpm, try to chose a tire height that helps get/keep your reaction times within a comfortable margin. Taller will be a bit slower and shorter will be a bit faster.
Remember that Myron is talking about front tires and reaction time. The reverse is true in terms of E.T. In general 2" in front tire diameter will get you about .012 in R/T. For detailed information, refer to my guest editorial on ThisIsBracketRacing.com (requires subscription).
http://www.thisisbracketracing.com/g...s=5E5D0406050F

Double-check and make sure you won't have any clearance issues with a large front tire, either from turning, or coming down from a wheelstand.

Myron Piatek 12-28-2012 08:01 PM

Re: Tire size suggestions and brand
 
Quote:

Originally Posted by Michael Beard (Post 362930)
LOL Well, that's one way to pick a tire. ;) If you look at winner's circle photos, you'll see that Fletcher "and a few others" runs Mickey Thompson tires. :rolleyes:

Just offering an observation. There are variety of reasons why people use a certain brand tire and, needless to say, there are many winners on M/T tires. Maybe I notice Hoosiers more because I run them, but it would be interesting to see the actual percentages.

Alan Roehrich 12-28-2012 08:48 PM

Re: Tire size suggestions and brand
 
For that car, I'd suggest the Hoosiers. The 9"x30", on a 10" or wider rim. The lightweight radial C06 for going fast, and the bias ply D05(softest) or D07 for "bracket mode". You'll get maybe 50-60 passes out of the radials, more out of the bias ply. You do not need a monster burnout, quick and clean, go straight to the line. The 28"x4.5"x15" for the front.

There's nothing wrong with M/T tires. Or Goodyears, for that matter.


A few people get tires free, or even get paid to run them.

james schaechter 12-28-2012 08:53 PM

Re: Tire size suggestions and brand
 
Quote:

Originally Posted by Rory Christianson (Post 362865)
Can anybody suggest a front and rear tire size for me being used on 69 corvette stocker. Mainly heights is what I am concerned with front to back
And which brand you are having the best luck with ?

Thanks in advance

Stick? Which engine?

Bob Pagano 12-28-2012 09:28 PM

Re: Tire size suggestions and brand
 
L-88 James, not sure what trans...... Auto

james schaechter 12-28-2012 09:39 PM

Re: Tire size suggestions and brand
 
It sure would make sense to look over Dave Casey's deal. If a ten inch rim fits, that would be awesome. I doubt if cost is the main consideration on tires here, but with an auto, it ought to hook in a mudslide! Maybe have a set of radials and bias ply tires mounted and at the ready. With all the engine setback and the weight that will be stacked up in the rear, hooking should not be an issue! Sounds like fun!

james schaechter 12-28-2012 09:44 PM

Re: Tire size suggestions and brand
 
It sure would make sense to look over Dave Casey's deal. If a ten inch rim fits, that would be awesome. I doubt if cost is the main consideration on tires here, but with an auto, it ought to hook in a mudslide! Maybe have a set of radials and bias ply tires mounted and at the ready. With all the engine setback and the weight that will be stacked up in the rear, hooking should not be an issue! Sounds like fun! Get a big ole worn out set to figure out how much clearance you need when you are doing the body work.

Rory Christianson 12-29-2012 11:31 AM

Re: Tire size suggestions and brand
 
Thanks for all the replies and information that's what I was looking for
Yes sorry L88 with auto combination

Alan Roehrich 12-29-2012 12:33 PM

Re: Tire size suggestions and brand
 
Yep, that's the combination I thought you were going to run, the Hoosier package I suggested should be as fast, consistent, and affordable as any.

Rory Christianson 12-29-2012 12:35 PM

Re: Tire size suggestions and brand
 
Sounds great, thanks for the info Alan
Regards Rory

Alan Roehrich 12-29-2012 01:06 PM

Re: Tire size suggestions and brand
 
I would strongly suggest you run Santhuff shocks on that, as the Corvette is known for violent wheelstands with big powr and good traction, due to the short wheelbase and good engine setback. You need the ultimate in front end control to prevent ugly things from happening. Specifically, you need to not have to "hit" the thing really hard to get it to hook and make the front end work. A lot of shocks have to be hit real hard to work, the Santhuffs do not, they work so smoothly that a 1.3 60' pass feels as soft as a 1.5 60' pass.

Rory Christianson 12-29-2012 01:17 PM

Re: Tire size suggestions and brand
 
Thanks again Alan
I will have a look at that for sure I was leaning towards afco or qa1 I have never used the others before

Bob Pagano 12-29-2012 02:23 PM

Re: Tire size suggestions and brand
 
Qa-1 not good enough, not adj enough

Larry Hill 12-30-2012 09:50 AM

Re: Tire size suggestions and brand
 
The last set of Goodyear radials I took off had 88 runs on them, the secret to long life is a short time in the water. On the Cuda the Goodyears are faster than the CO6 Hoosier. The front tires from Goodyear have very good longevity also.

Support at the track is very good, you can always find help if you need it from Goodyear. I believe Goodyear offers the best value and selection to the racer.

Jim Fitzpatrick 12-30-2012 11:18 AM

Re: Tire size suggestions and brand
 
I second Larry's assessment of the Goodyear Tires and support

Ed Wright 12-30-2012 11:55 AM

Re: Tire size suggestions and brand
 
I agree, Goodyear support is second to none.
They hook at least as hard as anything I ever owned.
They are, however part of my slow down, or bracket mode. My MTs are about 5lbs each lighter, and .04 average slower in 1/4 mile. I think it is the weight difference, as about .03 of that shows up in 60'. Same lights with both sets, so they are a good thing to switch back & forth for class or heads-ups.


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