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      05-05-2011, 11:43 AM   #1
bubu
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19in RAC RG63's...what will fit...

About to buy a new set of tires for my 19in RAC RG63's and need some advice...9in front, 10in rears.

Things to consider...

1. ESS VT1 Kit getting installed within a few weeks so I want more rubber on the back...just how much rubber is really necessary for a "spirited" take off?

2. Will I have DSC issues if I don't keep the 20mm staggered setup between f/r?

3. What will fit without without rubbing? Car is on stock suspension. I'm considering either another set of PS2's or possibly the Super Sports...

...as it stands I'm considering 255 35's front 285 35's back...or maybe 295 35 rear (if they will fit).

any input & advice would be greatly appreciated.
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      05-05-2011, 11:48 AM   #2
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I'm not supercharged but you just want more rear grip so the same principles apply.

1. Your choices are 255/35 and 275/35 combo, or 265/30 and 285/30, or even 295/30 if you want on the rears but 10mm of tread is not going to be a night and day difference. More important than the width difference is the compound and tire pressure.

2. Yes but it's not so bad. It intervenes more though.

3. Get the Pilot Super Sports. MUCH better than PS2's. If you want to have even more grip you can look into the higher performance tires like the AD08 or the RE11 but the PSS in my opinion is the perfect tire for this car.
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      05-05-2011, 12:13 PM   #3
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I have the same wheels as you and I run 255/35F and 275/35R. I love this set up. It feels perfect and no rubbing. If you go 295 on the rear, are you not concerned w/too much understeer? Prob won't be that bad but that's what I hear happens when the disparity between Front width and Rear width is too great. Hope this helps.
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      05-05-2011, 01:19 PM   #4
bubu
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pilot super sports it is...

...based on what I've read the Pilot Super Sport is the new tire of choice. One problem is the sizing...no 285 30 or 35 is available What's the deal with that?

I guess I'll be going with the 265 30 front - 295 30 rear pilot super sport setup and hope it does not rub.

How noticeable is the under-steer?
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      05-05-2011, 01:32 PM   #5
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uh it's impossible to tell you in words how noticeable it is

I can say that I love the stock handling balance with stock power I have 245/265 on my RAC RG63 18" with stock motor

So in steady state cornering the car will likely understeer more, even moreso because the supercharger adds weight up front. But since you will have a supercharger, you can easily turn understeer into oversteer by pressing your right foot harder in lower speed corners with DSC off. Just make sure you know what you're doing.
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      05-05-2011, 01:48 PM   #6
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Quote:
Originally Posted by bubu View Post
...based on what I've read the Pilot Super Sport is the new tire of choice. One problem is the sizing...no 285 30 or 35 is available What's the deal with that?

I guess I'll be going with the 265 30 front - 295 30 rear pilot super sport setup and hope it does not rub.

How noticeable is the under-steer?
that's a good setup. 285 is an odd size for 19" wheels anyway (285/30 is too short and 285/35 is way too tall).

I don't think you'll rub on the RAC's - they're not too aggressive of an offset.
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