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Nitto NT05s not a good road course tire... or are they?

SIXGUN

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#1
Hey, if you were wondering, this tire seriously lacks in lateral grip on track. Straight line seems pretty grippy, but corners are loose!
 


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Hey, if you were wondering, this tire seriously lacks in lateral grip on track. Straight line seems pretty grippy, but corners are loose!
What is a better tire?
 


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I went from the stock Pirelli to Conti. Extreme Contact Sports and shaved nearly 5 seconds off my personal best. Did bump up to 285/35 x 4 on the stock 9.5" wheels though.
 


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Hey, if you were wondering, this tire seriously lacks in lateral grip on track. Straight line seems pretty grippy, but corners are loose!
I spun mine out on a set of those the first time I had my RE out.

Going to stay a Michelin Man. Cup 2’s or thinking about the Cup 2 R’s 335/30’s. I am just not sure if that 335 will work up front (front liner rub on turning). I think it may work just barely.
 


OP
SIXGUN

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Thread Starter #5
I do recommend the summer (if your weather supports it) Michelin PS4S in 315/30. I recently confirmed the PS4S heat cycle out at around 6000-7000 miles, but that included several hard driving track weekends. I checked this weekend, a weekend driving to Sebring, tracking the car, and driving home is 500-600 exceptionally enjoyable miles!! I got out of shape in T1 at Sebring after passing a Rush and entering the turn on the inside, but to their credit the NT05 is very predictable and controllable, if exceptionally loose. But hey, I had a blast anyway! I have not tried new Cup 2s, so I'll defer to DGatzby on those, but I mounted a used set with plenty of tread and they were past their grippy beginnings, so didn't work for me. Tried to buy Toyota RRs to see how they work and they are on a nationwide backorder lately.
 


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Thread Starter #6
I have also had good results with the Conti Extreme Contact, but haven't tried them on this car.
 


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Everybody talking about tire sizes but no one is mentioning rim size. I am assuming these are all 20” rims?? Mine is stock with 18” rims so it has 315-40-18 and came stock with Nitto N05r tires all around. I’ve currently switched up to 315-40-18 Nitto G2s all around for better general traction on real roads, saving the N05Rs for future use or may find a second set of rims.
Doesn’t seem to be anyone making a really good track (road course) use tire in 18” diameter?☹️
 


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Everybody talking about tire sizes but no one is mentioning rim size. I am assuming these are all 20” rims?? Mine is stock with 18” rims so it has 315-40-18 and came stock with Nitto N05r tires all around. I’ve currently switched up to 315-40-18 Nitto G2s all around for better general traction on real roads, saving the N05Rs for future use or may find a second set of rims.
Doesn’t seem to be anyone making a really good track (road course) use tire in 18” diameter?☹️
Not many sizes available with enough rubber width in that overall diameter. Compare the 12-14” tire widths available, in 18“ and 20”. You see why we talk from 315-345’s in the 20” diameter.

IMG_7589.png IMG_7588.png
 


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I went from the stock Pirelli to Conti. Extreme Contact Sports and shaved nearly 5 seconds off my personal best. Did bump up to 285/35 x 4 on the stock 9.5" wheels though.
I have also had good results with the Conti Extreme Contact, but haven't tried them on this car.
The Conti Extreme Contact Sport 02 is an even better tire, beats a NT05R or the 555R2, did my best 60-130 (5.24 seconds) on the Sport 02, DR best was 5.50.
 


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Thread Starter #10
Many more great track tires available in 18", and much less expensive.
 


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SIXGUN

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Thread Starter #11
Update - the NT05s did finally gain more grip after two track weekends, and are wearing well. They talk to you and the car moves around alot, but they are very predictable so I am using them as a learning tool. I am driving better, so was able to set a PB on Sebring a couple weekends ago, finally breaking into a 2:29. Had an absolute blast, but my buddies say the car moves around alot! So, if I set a PB on them, they don't suck as bad as they did at first! Cannot explain them taking two full, hard weekends to generate grip... but it is what it is!
 


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Update - the NT05s did finally gain more grip after two track weekends, and are wearing well. They talk to you and the car moves around alot, but they are very predictable so I am using them as a learning tool. I am driving better, so was able to set a PB on Sebring a couple weekends ago, finally breaking into a 2:29. Had an absolute blast, but my buddies say the car moves around alot! So, if I set a PB on them, they don't suck as bad as they did at first! Cannot explain them taking two full, hard weekends to generate grip... but it is what it is!
I watched some TA racers close at BIR a few years ago and I was amazed at how much they moved around. So you are probably good. I will drive it hard next month and see if I detect any of that extra “movement” myself. It is the short track config, so it has a couple of real interesting tight spots.
 


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#13
NT05 was one of ther worst tires ive ever used. I spun them on my Redeye like I was driving in oil they were utterly worthless and my Redeye was stock at the time smh! Atleast get the 555R2 as it replaces those but the Conti Extreme Contact Sport 02 is bettter than both by a long shot especially in the corners at higher speeds!
 




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