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RiceEatingZR1
03-10-2013, 09:04 PM
I am looking at HTR Z(Ultra High Performance Summer) from Tire Rack.

Has anyone here used them? what are your thoughts?

VetteVet
03-10-2013, 11:52 PM
I think you're referring to the Sumitomos. Don't bother. They're cheap, but you get what you pay for. I've got a set on my car right now. They don't hook for sh!t. I can spin through first 3 gears. The car accelerates, but is spinning hard and leaving a lot on the table. I'm trying to save my money for a better set of tires, but the PCM swap I'm working on is eating up available funds.

Jep

ZRXMAX
03-11-2013, 04:34 AM
I have used a bunch of them before switching to Nitto 555s. They aren't to bad when their new, however, they wear out quickly. I was going through 2 sets of rears to 1 front set. I consider them "cheap fun" for drifting on the power and tire smoking in general.

I ran a new set back in the 05 Silver State and they actually felt good at speed though I have nothing to compare them to when driving over 150 mph for 90 miles. I consider them a short life tire... or... better said... you get what you pay for. I recently saw Walmart had a set of 4 Nitto 555s for about $800 out the door. That represents a better value for your money IMHO. I paid $950 2 years ago with a 100% road hazard warranty for the Nittos. These tires have performed well for the money and would buy them again when the time comes.

RiceEatingZR1
03-11-2013, 02:59 PM
Thanks guys!

ZZZZZR1
03-11-2013, 03:12 PM
I think you're referring to the Sumitomos. Don't bother. They're cheap, but you get what you pay for. I've got a set on my car right now. They don't hook for sh!t. I can spin through first 3 gears. The car accelerates, but is spinning hard and leaving a lot on the table. I'm trying to save my money for a better set of tires, but the PCM swap I'm working on is eating up available funds.

Jep

I have used a bunch of them before switching to Nitto 555s. They aren't to bad when their new, however, they wear out quickly. I was going through 2 sets of rears to 1 front set. I consider them "cheap fun" for drifting on the power and tire smoking in general.

I ran a new set back in the 05 Silver State and they actually felt good at speed though I have nothing to compare them to when driving over 150 mph for 90 miles. I consider them a short life tire... or... better said... you get what you pay for. I recently saw Walmart had a set of 4 Nitto 555s for about $800 out the door. That represents a better value for your money IMHO. I paid $950 2 years ago with a 100% road hazard warranty for the Nittos. These tires have performed well for the money and would buy them again when the time comes.

I agree with both of them!

Hate the Sumi's!!! Some don't mind them if the car isn't driven much and not @ high speed.

I LOVE michelin's and goodyears but they are pricey.

If you drive your car and dont' mind paying a little more for tires get the Michelins!

You can get them for $1460 shipped. (275/40/17 and 335/35/17) from ViperPartsofAmerica.com

Good luck and let us know what you get!

:cheers:

David

Kevin
03-11-2013, 03:12 PM
i cant see the point to running cheap tires on something that has as brutial performance as the zr-1. i'll run cheap tires on my mustang or my honda. the zr-1 gets the best I can find....even if I can't always afford it. GSD-3's or SP2's only.

RHanselman
03-11-2013, 07:02 PM
I agree with both of them!

Hate the Sumi's!!!

Ditto!

I really like the BFG KDW's. The Turbo Car and the Hawaii car both have them. The GSD3's are my next choice followed by the Mich SP-2's.

Cheers,
RH

FU
03-11-2013, 07:11 PM
I'd take the Mich's over the GSD3's and take the Nitto''s for traction over all.

RHanselman
03-11-2013, 07:13 PM
I'd take the Mich's over the GSD3's and take the Nitto''s for traction over all.

Frank,

I had to put the French factor in my ratings...

Cheers,
Rat

FU
03-11-2013, 07:29 PM
Frank,

I had to put the French factor in my ratings...

Cheers,
Rat

Understood !

Schrade
03-12-2013, 08:04 PM
I put a set on my '94 (LT1) for $515. I thought they held good. They had the fronts on backwards, and it didn't take long to figure out first time it rained. Scary. Forwards, they channelled out the water good. Kind of ugly tho'...

rkreigh
03-14-2013, 06:14 PM
I heard how awful the sumitomo tires were and believed it until I bought a set in an emergency situation. got a flat going down to the gathering on the runcraps and had a spare set of amolds with me and it was almost as cheap to get an entire set of the sumis than replace one GY F1 EMT runflat. I got a SET of them for 445 vs having to pay over 425 for ONE GY

to tell the truth, they hook better than the high dollar GY F1 EMT runflats I have on the LSV ZR-1!!! granted, these are new sumi vs run flats that are almost down to the wear bars, and the sumis are stock 315/35/17 vs a 325/30/19 runcrap.

bottom line is that they aren't a super high quality tire but really aren't such a bad bang for the buck.

not a bad tire to just roll around, just don't expect them to be competitive with a tire costing 4X as much or more.

they aren't nearly as BAD as I was led to believe and I'd run them in a heart beat in lieu of the FT runcraps which I have learned to hate with a passion. EMT stands for "expensive malfunctioning tire"

the EMTs really don't hook, or ride well at all, and honestly I think the sumi's handle better too!!! the EMTs work ok on a C5, not so good on the C4, and especially not with coil overs. sidewalls are just too stiff and in the cold weather the GYs are downright dangerous with 500 rwhp.

again, the sumi's not so bad.

next go around, I'm going with the Nitto NT05 as they are one of the few tires that fit the 19' CCW 505s going with a 335/30/19 and 275/35/19 front as they are similar diameter and from what I've heard from most they hook and handle pretty good and are a bit cheaper than alternatives from Michelin (probably the best, but pricey) or piirelli (also very pricey)

Daniel_Mc
03-14-2013, 08:12 PM
Not sure what you are looking for I ran the Kumho V700 for years on the street with no issues. It was a really good tire IMHO for the price only drawback, and this is with any Kumho high performance tire I have found, that when pushed hard and to the limits it becomes a bit greasy.

http://www.tirerack.com/tires/tires.jsp?tireMake=Kumho&tireModel=Ecsta+V700

I did get cought in the ran once or twice with them and it wasn't bad. I did not have them shaved but did have them heat cycled. Good luck in the search.

:cheers:

Daniel

Hog
03-15-2013, 10:33 AM
Would the M&H 325/45/17 drag radial fit on these cars? Ive seen them on some 17x11 rims mounted on Camaros.

Kuhmo makes a 315/35/17 as well.

peace
Hog