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Discussion Starter #1
I have a 1997 Thunderbird with a TVS2300-blown big bore 2V modular. The combo makes 560 RWHP and 520 RWTQ. Rear tire size is limited to 285 width by the wheel wells, and I'm running a 285/40-18 on a 10" wide rim. Originally tried Nitto NT555 G2s all around on the street, but traction was nonexistent. After switching to NT555Rs on the back, the car was much more manageable. The tread depth is down substantially after about 6,000 miles, so I'm looking to replace them. My question is whether to just get another set of NT555Rs, or switch to the newer NT555R2. On paper, the newer tire looks more desirable, but I'm concerned about the lower load index (96 versus 101 for the R). My car weighs about 3900#, and when we road trip it with luggage, tools and two aboard it maxes out between 4400 and 4500#. Would the 96 load index be sufficient? Also, what experiences have people had with the NT555R2, good or bad?
 

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'90 Windveil Blue LX (Dart Turbo T56)
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how many miles you put o this car on a average year?

personally i think a regular NT05 has more traction that the drag radial NT555R
 

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I also like M/T ET street S/S

 
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I've used the NT555R on my Fox, cutting about a 1.9 60ft. at the 1/8 mile. That was my favorite tire for the street until I tried the Mickey Thompson Street S/S on my SN. Those tires do a little better for traction on the street. With that in mind, you get what you pay for, as the Mickeys are a dash more expensive (in regards to a 15in. tire size).
 

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Discussion Starter #6
pkstang,

Hard to say what is an "average year" anymore, but 1500-3500 miles depending on trips. I'm fine with replacing the rear tires every 2-3 years, but they have to be safe for lengthy travel at full load, and reasonably good in the rain. The NT555R met those requirements. Dry traction is also important, but I have a set of NT05Rs on other wheels for dragstrip use, so it isn't everything. I looked at the NT05 sizes, and see they do not offer a 285/40-18, which is the diameter I need.

Will look at the M/T ET Street S/S. I don't think they were offering the size I wanted when those first came out.
 

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Discussion Starter #7
I contacted M/T about street use of their ET Street S/S, and they do not advise it. They said the tire is not intended for long distance use or driving in rain.

I also spoke with the Tech guy at M+H, and he was very clear that their drag radials are not intended for street use!
 

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Pretty much the same for Nitto and the nt555r drag radial and the R2. A lot of people drive them on the street although usually not long road trips. I have been running my Nitto drag radials since 2012 around town but I stay out of rain
 

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MT ET Streets are definitely not intended for driving in the rain. I don't drive my car in the rain, but I do know normal street tires are useless on my car.
 

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Hard to say what is an "average year" anymore, but 1500-3500 miles depending on trips. I'm fine with replacing the rear tires every 2-3 years, but they have to be safe for lengthy travel at full load, and reasonably good in the rain. The NT555R met those requirements. Dry traction is also important, but I have a set of NT05Rs on other wheels for dragstrip use, so it isn't everything. I looked at the NT05 sizes, and see they do not offer a 285/40-18, which is the diameter I need.
you can't have your cake and eat it too

if you're talking about replacing the NT555Rs than the NT05R is available in the size you're looking for and will be a step up performance wise

if you're talking about replacing the NT555 G2s than i don't know what to suggest if you're locked into the 285/40 size
 
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