Sumitomo HTR ZIII, any good?
06-25-2010, 04:59 PM
#286
Drifting
I have Sumi's as a street tire.. First time I've used them. My GT3 is 60% track 40% street. I have track wheels and tires...
For street use only they are OK, they are real good when you consider the price. Decent Grip.
If you plan to do an AutoX or Track sessions at all move to another tire.
For street use only they are OK, they are real good when you consider the price. Decent Grip.
If you plan to do an AutoX or Track sessions at all move to another tire.
06-25-2010, 10:28 PM
#287
Rennlist Member
WRT the XL Hankook Ventus V12 evo K110s, tirerack gives this warning:
"The following tire you have selected has a higher load rating than the vehicle's Original Equipment (O.E.) tires. This typically results in increased ride harshness, which some customers may find undesirable."
"The following tire you have selected has a higher load rating than the vehicle's Original Equipment (O.E.) tires. This typically results in increased ride harshness, which some customers may find undesirable."
06-25-2010, 11:54 PM
#288
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The HTR ZIII is one heck of a lot of tire for the money. I've been running them, size 235/40-18 (f), 275/35-18 (r) purchased from the Rack, on my '96 Carrera 2 coupe since last summer. Have about 3K street miles plus about 3 full days of DE on them.
Can only echo what's already been said...this is a great high-performance tire value. Mine replaced PZero Rossos, which I'd bought used / mounted on 996/Boxster Sport Design wheels, and which developed inside rear sidewall cracks.
As street tires the Summis are terrific. Quiet, good ride, excellent handling on the street, good apparent wear (even with 3 full days of DE on them). As track tires they'll do double duty in a pinch (a budget pinch in my case), but they really aren't "track" tires. Budget permitting this summer, I'm planning to buy a second set of wheels and a proper set of R-compund track tires.
Highly recommend them, though. A lot of tire for the money - good enough that I'd run 'em as streeters even if I could afford Pirellis or Michelins.
Dave
'96 Carrera 2 RoW coupe, midnight blue/classic grey, other than 18" 996/Boxster Sport Design wheels just getting going on mods.
Can only echo what's already been said...this is a great high-performance tire value. Mine replaced PZero Rossos, which I'd bought used / mounted on 996/Boxster Sport Design wheels, and which developed inside rear sidewall cracks.
As street tires the Summis are terrific. Quiet, good ride, excellent handling on the street, good apparent wear (even with 3 full days of DE on them). As track tires they'll do double duty in a pinch (a budget pinch in my case), but they really aren't "track" tires. Budget permitting this summer, I'm planning to buy a second set of wheels and a proper set of R-compund track tires.
Highly recommend them, though. A lot of tire for the money - good enough that I'd run 'em as streeters even if I could afford Pirellis or Michelins.
Dave
'96 Carrera 2 RoW coupe, midnight blue/classic grey, other than 18" 996/Boxster Sport Design wheels just getting going on mods.
06-25-2010, 11:59 PM
#289
Nordschleife Master
The HTR ZIII is one heck of a lot of tire for the money. I've been running them, size 235/40-18 (f), 275/35-18 (r) purchased from the Rack, on my '96 Carrera 2 coupe since last summer. Have about 3K street miles plus about 3 full days of DE on them.
Can only echo what's already been said...this is a great high-performance tire value. Mine replaced PZero Rossos, which I'd bought used / mounted on 996/Boxster Sport Design wheels, and which developed inside rear sidewall cracks.
As street tires the Summis are terrific. Quiet, good ride, excellent handling on the street, good apparent wear (even with 3 full days of DE on them). As track tires they'll do double duty in a pinch (a budget pinch in my case), but they really aren't "track" tires. Budget permitting this summer, I'm planning to buy a second set of wheels and a proper set of R-compund track tires.
Highly recommend them, though. A lot of tire for the money - good enough that I'd run 'em as streeters even if I could afford Pirellis or Michelins.
Can only echo what's already been said...this is a great high-performance tire value. Mine replaced PZero Rossos, which I'd bought used / mounted on 996/Boxster Sport Design wheels, and which developed inside rear sidewall cracks.
As street tires the Summis are terrific. Quiet, good ride, excellent handling on the street, good apparent wear (even with 3 full days of DE on them). As track tires they'll do double duty in a pinch (a budget pinch in my case), but they really aren't "track" tires. Budget permitting this summer, I'm planning to buy a second set of wheels and a proper set of R-compund track tires.
Highly recommend them, though. A lot of tire for the money - good enough that I'd run 'em as streeters even if I could afford Pirellis or Michelins.
Good review ...
How did you arrive at the tire size combo 235/40-18 (f) and 275/35-18 (r)?
06-26-2010, 02:29 AM
#290
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Ted,
Thanks! Arrived at the size combo based on two objectives: Increase front tire width and decrease front-to-rear width differential for less understeer, while staying close to the original 25" tire OD. On the decreased understeer front it worked well, and the Summis fortunately offered sizing options that covered these objectives.
Dave
Thanks! Arrived at the size combo based on two objectives: Increase front tire width and decrease front-to-rear width differential for less understeer, while staying close to the original 25" tire OD. On the decreased understeer front it worked well, and the Summis fortunately offered sizing options that covered these objectives.
Dave
07-16-2010, 04:41 AM
#292
Rennlist Member
Blew out a Yoki Neova on the track, of course they were discontinued so I couldn't replace just one, d'oh.
So I bought a set of HTR Z IIIs for last week's event. Good grip, comparable to the Neova's, but more warning at the limit, which I like.
Heat up fast though! Had to drop pressures after a lapping session as they were starting to feel a bit oily. I'd say outstanding bang for the buck, but keep an eye on the pressures at the track.
So I bought a set of HTR Z IIIs for last week's event. Good grip, comparable to the Neova's, but more warning at the limit, which I like.
Heat up fast though! Had to drop pressures after a lapping session as they were starting to feel a bit oily. I'd say outstanding bang for the buck, but keep an eye on the pressures at the track.
07-16-2010, 10:50 AM
#293
Drifting
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Anyone else find these tires have quite a "huummmmmm" to them? My car sounds like an airplane winding up, especially on new pavement.....not that I'm complaining.
07-16-2010, 11:34 AM
#294
Yeah, I've noticed the Sumi's do create quite a bit of tire noise. Not my favorite, but a fair trade-off, given how inexpensive they are....
07-16-2010, 01:35 PM
#296
Burning Brakes
07-17-2010, 10:57 AM
#297
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So you may want to try lower pressures.
08-14-2010, 03:10 PM
#298
Rennlist Member
Are the sumi's relatively narrower than other brands in the same size? I mounted. 285 on my 11in rims (I know, small for the rim but based on recommendation) and they were way stretched. I'm upgrading to 295's, hopefully they fill the 11in wheel properly? Any feedback from folks running 295 on 11in? I feel like I could easily get away with an 305, but it doesn't look like the make anything larger than 295
Great tires btw, much better feel than the yoko avs I replaced
Great tires btw, much better feel than the yoko avs I replaced
08-14-2010, 03:39 PM
#299
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Are the sumi's relatively narrower than other brands in the same size? I mounted. 285 on my 11in rims (I know, small for the rim but based on recommendation) and they were way stretched. I'm upgrading to 295's, hopefully they fill the 11in wheel properly? Any feedback from folks running 295 on 11in? I feel like I could easily get away with an 305, but it doesn't look like the make anything larger than 295
Great tires btw, much better feel than the yoko avs I replaced
Great tires btw, much better feel than the yoko avs I replaced
08-14-2010, 05:59 PM
#300
Drifting
Thread Starter
Due to hearing loss, oddly I'm sensitive to noise and these are very good in that regard. The good wear and decent handling are a nice bonus.