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205/50-15 RA1?
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TOPIC: 205/50-15 RA1?

Re:205/50-15 RA1? 14 years, 10 months ago #4839

  • JerryW
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  • Endurance Racer
  • If you feel in control you arent going fast enough
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JerryW wrote:
Hmmm -- starts rummaging in the stack of tires in the garage ! Think Tim snagged at least one set in that size from Infineon when he worked there <grin>


Yup got a set ! -
Willing to test them if the series director allows.
Jerry Whitteridge
Norcal #552

Re:205/50-15 RA1? 14 years, 10 months ago #4844

I would say go ahead and test them if you were here in the SE. I would do it myself, being that my employer, Phils Tire Service, could provide me with a set to try, BUT, I am not going to waste any track time if this has no chance of coming to fruition.
MICHAEL MADUSKE
2009,2010 Southeast 944-SPEC Champion

Re:205/50-15 RA1? 14 years, 10 months ago #4845

  • genikz
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FWIW, I commonly run 205/50/15 RA1's at auto-x's and they're great for Spec in my opinion.

I have run a set of shaved 225/50/15 RA1's and then switched to my 205/50/15 set of RA1's (which had many more heat cycles) and ran faster with the 205's. I don't think it was grip that made me faster, but the "feel" of the 205's that helped me be sharper.

That might not mean much for the big track, but I would be all for a RA1 setup over R888's.

Re:205/50-15 RA1? 14 years, 10 months ago #4847

  • jaje
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With a slightly smaller diameter it will help acceleration but hurt top speed. With slightly lighter weight (less rotational inertia) it will help acceleration / braking and reduce unsprung weight.

I always like running RA1s in Honda Challenge but have only run the R888s in Spec thus far (2 races). The RA1s worked great in almost all weather except heavy rain where I can see the R888s the supreme tire. I could get my RA1s to last an entire season from a new set.
Joel
83 944 Spec (#74) - conflictedracer.wordpress.com/

Re:205/50-15 RA1? 14 years, 10 months ago #4855

  • bay924s
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Better size or not, I vote NO! Folks have made an investment for the R888s. I expect mine to last throughout the 2010 season.
Steve Huey
Norcal #106 and sometimes #95 1/2
Last Edit: 14 years, 10 months ago by bay924s.

Re:205/50-15 RA1? 14 years, 10 months ago #4861

Guys,
Like I said earlier. This a valid posibility, but we need to learn more before we change. We have not been happy with R888s, but some of that is a learning curve thing. Frankly we are starting to see better results with the R888 so things may turn around.


What I want to make clear are two things.

1) 944 spec is a Spec tire class. This means we will have one tire and one tire size. That is the goal class. Right now we are in transition and that is the only reason for two tires.

2) The goal of the class is an effective long lasting tire for all of us to be equal. For 2010I want to have all the tire issues resolved we can go back simple racing.


My take is this. After National lets see how things shake out. I believe any decision we make must be made with the best information at hand.
Joe Paluch
944 Spec #94 Gina Marie Paper Designs
Arizona Regional 944 Spec Director, National Rules Coordinator
2006 Az Champion - 944 Spec Racer Since 2002
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