Search found 38 matches

by Jeffear
Thu Feb 25, 2016 1:04 pm
Forum: New to Autocross/New to the Forum
Topic: Tire Advice Please
Replies: 7
Views: 1900

Re: Tire Advice Please

Jeff, Asphalt like Cal Speedway tend to like tires with tread depth. While the tires may not seem like they are gripping well at ACS, they will indeed grip very well at El Toro. Since we are heading back to El Toro next it would be a good thing to keep that set still as it may still work on the hig...
by Jeffear
Wed Feb 24, 2016 2:43 pm
Forum: New to Autocross/New to the Forum
Topic: Tire Advice Please
Replies: 7
Views: 1900

Re: Tire Advice Please

Jeff, I meant to ask why tires start to go off like this? Is it a change in the rubber compound that occurs from constantly going through heat cycles? Or are there other things in play. I'm by no means a tire expert, I just know what I've seen over the last 6 years of autocrossing. For the Bridgest...
by Jeffear
Tue Feb 23, 2016 3:44 pm
Forum: New to Autocross/New to the Forum
Topic: Tire Advice Please
Replies: 7
Views: 1900

Re: Tire Advice Please

Jeff, I meant to ask why tires start to go off like this? Is it a change in the rubber compound that occurs from constantly going through heat cycles? Or are there other things in play.
by Jeffear
Tue Feb 23, 2016 3:40 pm
Forum: New to Autocross/New to the Forum
Topic: Tire Advice Please
Replies: 7
Views: 1900

Re: Tire Advice Please

We usually get ~100-120 runs out of our Bridgestones before they're done. Their performance starts falling off around 70-80 runs. The Dunlops should have a slightly longer life, but probably not 2x. Expecting street tires to last >200 runs probably isn't realistic, especially on a big heavy car tha...
by Jeffear
Tue Feb 23, 2016 12:23 pm
Forum: New to Autocross/New to the Forum
Topic: Tire Advice Please
Replies: 7
Views: 1900

Tire Advice Please

I purchased a set of Dunlop Direzza ZII Star Spec tires for my Ecoboost Mustang about a year ago. They now have 240+ runs and 3500 street miles on them and although they have about 40%+ tread left I think they are slowly losing grip. Even though there is lots of tread left could these tires be going...
by Jeffear
Sat Jan 16, 2016 1:31 pm
Forum: Solo Talk
Topic: The Berry Family Solo Empire
Replies: 2
Views: 1024

Re: The Berry Family Solo Empire

Works for me...
by Jeffear
Fri Jan 15, 2016 1:40 pm
Forum: Solo Talk
Topic: The Berry Family Solo Empire
Replies: 2
Views: 1024

The Berry Family Solo Empire

There is a fabulous photo of the Berry Family on the cover of this month's Sports Car magazine backed up with a interesting and fun article on the Berry Family Solo Empire. A wonderful read and highly recommended. On a personal note, congratulations to Tom and Theresa and the entire family (extended...
by Jeffear
Wed Dec 09, 2015 12:22 pm
Forum: Solo Talk
Topic: Photographer
Replies: 5
Views: 2110

Photographer

Does anyone know how I might contact the Photographer that was on course on Sunday? Thanks.
by Jeffear
Sun May 17, 2015 4:01 pm
Forum: Events
Topic: EvoSchool Returns to SoCal Aug 15-16
Replies: 2
Views: 978

Re: EvoSchool Returns to SoCal Aug 15-16

Thank you for the "heads up" Sean. Until I saw this the only offering in CA this year was in Marina.
by Jeffear
Mon May 11, 2015 1:27 pm
Forum: Public Rules Discussion
Topic: Strut camber bolts in Steet Tire classes
Replies: 13
Views: 10563

Re: Strut camber bolts in Steet Tire classes

You're right Dr. Conemangler, a very poor choice of words. It seems likely that the only reason a manufacturer would include such crude methods of camber adjustment in their Service Manual is to help their dealers adjust the alignment on a customers car after an accident or curb whacking. You can be...
by Jeffear
Thu May 07, 2015 3:42 pm
Forum: Public Rules Discussion
Topic: Strut camber bolts in Steet Tire classes
Replies: 13
Views: 10563

Re: Strut camber bolts in Steet Tire classes

I found some great information on this topic at this site:

http://teamtac.org/e107/e107_plugins/fo ... .php?64809

Again thank you all for your assistance.
by Jeffear
Thu May 07, 2015 2:29 pm
Forum: Public Rules Discussion
Topic: Strut camber bolts in Steet Tire classes
Replies: 13
Views: 10563

Re: Strut camber bolts in Steet Tire classes

OK, I go it now.

Can anyone explain the background or reason for this rule. It allows camber modifications to be made on some cars but not others. And the method of modification seems less than ideal.
by Jeffear
Wed May 06, 2015 5:33 pm
Forum: Public Rules Discussion
Topic: Strut camber bolts in Steet Tire classes
Replies: 13
Views: 10563

Re: Strut camber bolts in Steet Tire classes

Thank you all for your very helpful information. I copied this post from a Mustang forum that appears to explain my option. [color=#FF0000]FYI Specific to autocrossers in the SCCA Street class: The Ford service manual specifies widening the upper of the two strut to spindle/knuckle/hub assembly bolt...
by Jeffear
Mon May 04, 2015 2:28 pm
Forum: Public Rules Discussion
Topic: Strut camber bolts in Steet Tire classes
Replies: 13
Views: 10563

Strut camber bolts in Steet Tire classes

Are strut camber bolts (crash bolts?) an allowed suspension modification in Street Classes. And if they are allowed are they safe on a heavy car?
by Jeffear
Mon Apr 20, 2015 1:16 pm
Forum: Events
Topic: Very Preliminary Results 4/19/2015
Replies: 9
Views: 2312

Re: Very Preliminary Results 4/19/2015

Thank you Rick for being such a stalwart. We are lucky to have you.
by Jeffear
Fri Apr 10, 2015 12:51 pm
Forum: For Sale/Wanted
Topic: 17' Bridgestone R-11s with/without Miata wheels
Replies: 0
Views: 648

17' Bridgestone R-11s with/without Miata wheels

A set of 4 NC Miata OEM 17" x 7" ten spoke wheels with 205-45R17 Bridgestone Potenza RE-11s. Wheels were dealer take-offs and are like new. Tires have approximately 1K road miles including about 80 autocross runs. These are 200 rated tires that meet new regulations. Wheels and tires balanc...
by Jeffear
Sun Apr 05, 2015 4:01 pm
Forum: New to Autocross/New to the Forum
Topic: Sumitomo Tires and Sizes
Replies: 1
Views: 1610

Sumitomo Tires and Sizes

Thinking of purchasing Sumitomo HTR Z III tires for my Mustang? Does anyone have experience with these tires on a car like the Mustang? More concerned with durability and price than performance at this time. They have a UTQG of 300, will that equate to 250 runs on my car? The OE size is 255/40/19 an...
by Jeffear
Sat Apr 04, 2015 2:42 pm
Forum: Public Rules Discussion
Topic: New Street tires detrimental to the sport?
Replies: 34
Views: 10148

Re: New Street tires detrimental to the sport?

Sorry, I have to add another post just to respond to the last couple of posts. Having a dedicated autocross car may be cost effective for some but for others adding a another car to the household fleet just doesn't work. There are many valid reasons for this. I tried it last year with a Miata NC and...
by Jeffear
Fri Apr 03, 2015 2:38 pm
Forum: Public Rules Discussion
Topic: New Street tires detrimental to the sport?
Replies: 34
Views: 10148

Re: New Street tires detrimental to the sport?

One more post and then I am going going to stop beating this dead horse. I have found it interesting that some of the people responding to my original post re tires, have defended the status quo- it is what it is, and it’s been this way for years and we don’t want to talk about it anymore. Just work...
by Jeffear
Thu Apr 02, 2015 2:13 pm
Forum: Public Rules Discussion
Topic: New Street tires detrimental to the sport?
Replies: 34
Views: 10148

Re: New Street tires detrimental to the sport?

I can make it louder or experiment with sway bars and that's it. However, tires which constitute a major expense, are completely open. You forgot shocks. You can add several thousand dollars worth of custom-valved shocks. And spend a thousand or more getting them re-valved to optimize them. And lot...
by Jeffear
Thu Apr 02, 2015 1:39 pm
Forum: Public Rules Discussion
Topic: New Street tires detrimental to the sport?
Replies: 34
Views: 10148

Re: New Street tires detrimental to the sport?

In the stock classes, SCCA in an effort to reduce costs for competitors allow almost no modifications to the car; I can make it louder or experiment with sway bars and that's it. However, tires which constitute a major expense, are completely open. The logic of this escapes me. Really am I the only ...
by Jeffear
Wed Apr 01, 2015 1:26 pm
Forum: Public Rules Discussion
Topic: New Street tires detrimental to the sport?
Replies: 34
Views: 10148

Re: New Street tires detrimental to the sport?

I understand that Bridgestone spent a ton of money engineering the new RE-71Rs and they committed to providing a full range of tires. But they also have a 6-8 competitors and I suspect a market share of no more than 20 percent. And lets remember how fickle this market is. A month ago Dunlops were th...
by Jeffear
Wed Apr 01, 2015 6:37 am
Forum: Public Rules Discussion
Topic: New Street tires detrimental to the sport?
Replies: 34
Views: 10148

New Street tires detrimental to the sport?

During the recent Tour event in San Diego I had a chance to learn about the new “Street” tires that are coming on the market. The BMW M3 beside me on the grid was shod with Bridgestone’s new RE-71R Street tires and was co-driven by a Bridgestone Representative. The M3 was expertly prepared and drive...
by Jeffear
Wed Mar 25, 2015 2:46 pm
Forum: Events
Topic: April 2015 Event Volunteers
Replies: 28
Views: 4949

Re: April 2015 Event Volunteers

I will help in any way I can. I have no experience with these positions but if I could help someone who does I will be in a better position next time.
by Jeffear
Wed Feb 18, 2015 4:52 pm
Forum: New to Autocross/New to the Forum
Topic: Learning a new course
Replies: 13
Views: 3456

Re: Learning a new course

Thank you all for your really great advice. Bill Martin's method really appeals to me but all of your advice is really helpful. At my age, I have a really bad case of "CRS", Can't Remember sh#$. :) I'm just curious to know why SCCA Autocross is the only motorsport I am aware of that does n...

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