09 BS Hoosier size
#27
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#31
No respecter of malarkey
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I'm making a wild @ss @ssumption that he knows what he's talking about if he bought Motons for his 09 Sport
Last edited by TeamRX8; 04-21-2009 at 09:47 PM.
#32
I don't know where the 2 inch difference comes from but I can confirm that the 09 rear shocks are different from 08 and earlier. So unmodified, the current Koni rears will not work. The spring perch is ~ 0.5 inches higher for the 09 shock and the shock body is also ~ 0.5 inches longer.
Koni is now aware of the issue.
#33
05-08 SCCA BS Natl Champ
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I don't know where the 2 inch difference comes from but I can confirm that the 09 rear shocks are different from 08 and earlier. So unmodified, the current Koni rears will not work. The spring perch is ~ 0.5 inches higher for the 09 shock and the shock body is also ~ 0.5 inches longer.
Koni is now aware of the issue.
Koni is now aware of the issue.
The good news is we may actually have something to look at if they pull wheels in impound this year.
#34
This is an 09' base, or an R3? Interesting how many different stories are out there - seems like a lot of the early 09' converts were saying everything was the same, now not so much.
The good news is we may actually have something to look at if they pull wheels in impound this year.
The good news is we may actually have something to look at if they pull wheels in impound this year.
I was asked to add the following clarification statement: The Koni’s rears “Fit”, but are not stock class legal.
There was a rumored change in the 09 rear suspension that no one seem to be able to track down. I think we found it now!
Last edited by treinhar; 04-22-2009 at 12:55 PM.
#38
Row faster, I hear banjos
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I started off around 39psi front, 37 psi rear and adjusted from there (depends on surface). I typically run front pressures in the mid 30's right now on decent grip asphalt surfaces (e.g. Fedex stadium lot in DC).
#42
RX8 Steering Wheel Spacer
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Me & GeneralDefault were on 255s.
i had less wear here than i did in Houston albeit on less run time.
i'll keep watching to see how they do over the next few events.
#43
No respecter of malarkey
iTrader: (25)
I ran 57 psig hot at Wendover on the 255s. I also ran a prior test event on asphalt trying a few other changes and at 53 psig hot the 255 front outer corners were still rolling over too much. I had good grip at Wendover, but at that pressure if you went over the limit you could really feel it bite you. Worked fine otherwise. The corner wear issue seemed to decrease some, but is still occurring. I'll probably go with 285s myself the next time.
#45
Someone already has .....
Works well in transition, 60 ft times were not quite as good as the 285, so Jason R and I decided to stick with the known set-up for the ProSolo. I still have some experimenting to do, but the balance change is subtle, not scary.
Chris H
Works well in transition, 60 ft times were not quite as good as the 285, so Jason R and I decided to stick with the known set-up for the ProSolo. I still have some experimenting to do, but the balance change is subtle, not scary.
Chris H
Last edited by Zoom4Three; 05-05-2009 at 12:30 PM.
#46
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Can't say that I noticed any difference on the 60 ft times or launch rpm
The hassle of two different size tires offsets any advantage for me, I'd rather be able to swap between front and rear before ultimately having to flip them inside out
The hassle of two different size tires offsets any advantage for me, I'd rather be able to swap between front and rear before ultimately having to flip them inside out
Last edited by TeamRX8; 05-05-2009 at 04:11 PM.
#47
I spoke with another "early adopter" of the 255 today. Different application (front drive, some camber), but same problem...they have also gone over 50psi, which just can't be within the design parameter, and still have an effect where the tires cord right at the edge, but look perfectly fine (almost untouched) less than 1/2" inside of the cording. This is after about 35 runs.
I'm still thinking there is a construction/early production issue. It makes absolutely zero sense that a more optimal section width for the 8" rim would wear so much worse, i.e. 255 vs. 285 or 295
I'm still thinking there is a construction/early production issue. It makes absolutely zero sense that a more optimal section width for the 8" rim would wear so much worse, i.e. 255 vs. 285 or 295
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