SDLS1Rider

I need new tires. I've been running NT555RII in sizes of 275/40/17 up front and 305/35/18 in the back. Nitto doesn't make the 17 in. tire in NT555RII any more. I just got off the phone with the tire shop, and they have the NT555RII for the back but wanted to sell me the NT555R for the fronts which Nitto makes in available sizes.

I am running a A&A superchaged C5 with approx 600 rwhp, and I do aggressive canyon carving. Is this a good idea to go with the NT555Rs on the front?

hungryhippo

No, 555r is a drag radial with a soft sidewall. You might have to switch to toyo r888's

SDLS1Rider

I'm considering that. But the tire shop I was talking to said they weren't available (to them?). Yet tirerack says they can be ordered.

A drag radial is great for straight line performance, but what about lateral acceleration?

Supercharged111

Go to a different shop. . . or better yet order them online and save yourself some money. I never buy tires from shops, always online.

FASTFATBOY

Switch to the NT-05

spdislife

Tirerack or discounttiredirect.com Toyo R888 is a decent choice but they whine due to the tread design.

SDLS1Rider

This shop has a good reputation for working with Corvettes. The last time I purchased tires the difference between them and buying on line, then having the shop mount them was about the same.

However, it looks like Discount tire Direct offers free shipping. At this point I'm debating NT05s, Toyo R888, and NT01s. I might even do something like NT05s up front, and NT555RII on the back.

Problem is NT05 (275/40/17) are on back order with Discout Tires direct.

hklvette

Be very careful mixing compounds. Very few people do it, and for good reason. As the tires warm up, you can go from understeer to oversteer and back to understeer very quickly.

SDLS1Rider

On a 600 rwhp supercharged corvette?

Thank for the advice, I will take it seriously! Consider that idea nixed.

Supercharged111

Well you say that, but I seem to recall back in June some CMC racer staggering RA1 on the inside and RR on the outside. I think the guy cut and/or corded a tire. I wasn't his plan A, but he didn't complain of as lopsided a car as I thought he would have experienced. Wasn't me, but I'll say I'm less scared to try something so ghetto in the future.

mark b

I had the same issue, I bought used 18 rims for the front.. 18x9.5s..
problem solved..
don't mix compounds, unless you drive like grandma with it