Food for thought: I heard cost on our RRs is $200/tire (ASSuming this is true). Yes Toyo is a business and businesses are in the business of making money, but they also like writeoffs. . .
Food for thought: I heard cost on our RRs is $200/tire (ASSuming this is true). Yes Toyo is a business and businesses are in the business of making money, but they also like writeoffs. . .
RM CMC Director
Michael and Kevin using older tires for non Toyo races is fine but like Richard I want to run as fast as possible in every race. Since I only run two races per weekend one of those will not be a Toyo race. I do not want to run tires that are even half a second slower per lap. Different strokes for different folks. I would like a tire that is slower and would not change from new to corded. I just don't know if there is such a thing.
JJ
Maybe pre cycled out tires are the answer here.
RM CMC Director
What is the difference in the RT615K and the RT615K+?
JJ
$278 from Phil's so should include shipping.
RM CMC Director
I don't have answers, but this has been a recurring issue since NASA went to the 888.
Al Fernandez
My aim for starting this thread was totally centered on budget. I wanted to start the discussion about 200 TW street tires because I think if we can have as much fun as we do and lower the cost per event we all win. The endurance racing series that are gaining popularity that run them have something very right in their formula, those events are serious fun and tires are way less of a factor. I think the alure of low cost is something that keeps people showing up and sticking around in those series.
I agree with the sentiments that we don't want the tires to be the deciding factor in everyone's season. Part of racing is car management, I understand that -- but none of us are going to run Daytona and the cars tend to create enough reliability opportunities that taking new tires out of the performance equation that is CMC would be a net benefit to the whole group (in my opinion).
They just turn to such unpredictable junk. I'll take a slower predictable street tire all day over a 15hc RR rock.
New compound -- better for track driving. Like i said previously, the 615k+ is the Spec Vette tire choice and those guys spoke positively about them. How that is not a direct comparison has been highlighted elsewhere in this thread, but is a good data point from a standpoint of 'are these tires total junk or are they a possilbe option?'
Daniel Records
CMC # 34
Soooooo lots of options but they all boil down to two options. Run 615+ or stay with the current format. I think everyone understands the facts at this point. Someone have a email distribution list for the Texas group? Happy to put together a survey monkey and send it out.
If we want to wait on that for now we just need 5 to agree to be guinee pigs at Cresson. And then we can all review data. I would say that a part of that agreement would be to run the 615+s in every session to maximize the groups ability to look at time degradation during heat cycles.
since I will not be driving I am happy to record subjective opinions on handling after each session from each driver and document it in one excel file so that it can be charted. Then we can pull the objective data, times both average and best, to see how they align with each other. That is about as complete as I can think of it.
The combination of objective data combined with subjective opinions that are tracked throughout the weekend should provide really good feedback. We can do a survey monkey after that.
Last edited by liquidroam; 02-12-2019 at 02:12 PM.
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