what do you all think about the direzza dz101 for auto crossing and for a road racing event? any info would be good thanks

 

auto-x you could run anything really, even snow tires. you won't be competitive but you can go out and have a good time. For an HPDE i would suggest a high performance summer tire.

 

I would get the direzza z1 star specs, falken azenis, kuhmo xs for hpde/ auto-x. All these tires are around the 100 dollar mark and are really good for the money

 

I would definitely get the Z1's over the dz101's, I have had/have both and would take the Z1 over the 101's anyday without hesitation. It's hard to beat the wet and dry grip you get from the z1's for the money

 

The Direzza DZ101 is an okay summer tire, good for daily driving, not particularly sticky like its stablemate, the Direzza Sport Z1 Star Spec.

However, if you're a beginner to the sport - and I'm guessing you are - just "run what you brung". As a novice, you won't be using the full capabilities of your tires (or car) anyway; you're just concentrating on learning. Daily driving type tires are actually very good for your first few events because they will give you plenty of audible warning before actually losing traction.

Once you've done a bunch of events and you start to build experience, that's the point at which you might want to consider a tire upgrade (and you'll probably want to buy an extra set of wheels, too, so you can continue to use the DZ101 on the street, and something stickier but faster wearing for autocross and track use).

Have fun!

 

i have auto x about 5 times still new to it. do any of you know any ppl that auto x or road race with out sway bars?

 

Great post...how about for a daily driver needing a new set of tires now for combined street/autox use, and having done a few events, 2 last year, 3 this year. Would you recommend the DZ101 or Z1 Star Spec? Thanks!

 

if your only doing a couple events a year... youll be fine with dz101....

i would go for more durability than stick if its a car that only going to see a couple events

 

I've got a CX EG hatch that I bought as a shell and built my autocross car from. I did a half season of autocrossing with no sway bars and the shitty Drop Zone coilovers that came on it. It didn't handle particularly well, the rear was too stiff compared to the front. I threw an Integra front bar on it to finish out the season and I did one HPDE like that. It wasn't an awesome setup, but it worked. I now have Koni/GC and an ITR rear bar as well. The car is much easier to drive now, but not a lot faster than before.

BTW, I run Direzza DZ101s on the street. I am pleased with them as a street tire. They are kind of sticky and dirt cheap. They are fine to autocross on, I do when it is wet out. Once you get some more experience under your belt you can worry about getting better tires. When I started autocrossing I worked in a tire shop and I would run whatever crap tires I took off of other people's cars when they got a new set. That way I didn't wear out my street tires.

 

its just a regular tire, we call it "vegetable" ))) its good for 1.3l-Carb EG, but its not a UHP-tire. Take a look at tiretrack tests - dz101 at the same level as yoka s-drive at dry, but its at reeeeealy worse at wet.

the tire is realy hard, so the other bad thing with dz101 is - before race track you should burn it, like for drag-race. in other case tires can loose some pieces at the coners. some real god m.f. pieces...like mine


z1 tire - high class like a058, ad07, s55...but its almost slick-bewere in rain

 

It depends on your priorities. The Star Spec (and similar tires, like the Kumho XS, Bridgestone RE-11, etc) offers great grip, especially on dry pavement; it's the stickiest street tire you can buy. But it won't last as long (figure 15K, maybe 20K miles for the Star Spec, vs 25-40K for the DZ101). And while the Star Spec is reasonably priced for such a sticky tire, it's still more expensive than the DZ101. So if you're looking for something sticky for autocross and you don't mind the somewhat higher price and shorter treadlife, go for the Star Spec. If you want something with better value - a bit lower in price and longer lasting - then the DZ101 might be the better choice, although there are some others that are even better (see below).

Yup, exactly. The DZ101 is not the best longer-lasting decent-performance summer tire; the S.drive is significantly better, and so are the Fuzion ZRi and, if it's available in the size you need, the Kumho SPT. All of these tires are usually similar in price, although prices vary depending on the size you need; in some sizes the DZ101 has a price advantage over these others. The S.drive is the summer tire I most often recommend for those looking for value (purchase price and treadlife) as well as performance.

 

Z1s have been on my wishlist for a while. Has anyone had any experience with these tires from a dig?

 

depends what size in the z1...

the 15 inch size thye have... have not had good reviews performance wise compared to other brand 15 inch sizes....

but their bigger sizes 16+ have had great reviews

 

What does "from a dig" mean?

Nonsense. The 15" is just fine, just like the other sizes. Do a search on this forum for "Star Spec" for comments.

The reviews on the Tire Rack website are often biased. There are lots of examples of tires that are inferior to others in every way, but get better reviews.

 

got some pict of mine dz101

tires was almost new...before 2 10-min sesion on the race track. now it look like after rats attack:






see the differentce between inner and outer tire sides?

even a rear tires got some damage



definitely not for autocross race

 

who says i read from tirerack?

its been proven, autox time and time again the 195 55 15 z1s cant hang with the other extreme summer tires... kumho,toyo, bridgestone, advan

I know your the "tire" guy, but even in the grassroot motorsports test where they used a 89 civic, the star spec was not that much faster than the old falken azenis 615, while the other tires were a good half second better

the tire is just too narrow and tall compared the other tires out there and not much cheaper than the better Kumho XS.

this is talking from an autox standpoint, I dont know how well they would do on a track, but id assume results would be the same

but comparing dz101 to z1* ya... the z1 is a good tire

 

ive owned a set of dz101's using them on a daily and also did 2 auto-x days on them, i have to say they have mediocre grip...my next set after the dunlops were yokohama s. drives, daily and 1 auto-x day on them. i felt much more confident with them on the course then on the dz101's. the s. drives definitely outlasted the dz's.

 

Are you sure about that? Because that claim contradicts my own experience riding on them, as well as everything I've heard from others who have used them, including here on this forum (such as in this topic and this topic). Do you have a link to that article, or can you tell me which month's issue it was in?

Have YOU actually used the Star Spec in 195/55-15, or are you only relying on hearsay? What kind of times did you run in them, and how did this compare with other tires you have used in 205/50?

 

ive used toyo r1r, kumho XS, bridgestone re11 and re01r....azenis both gens, hankooks old rs2s

i codrive a ST spec civic

I trust Andy Hollis's "opinion" and never bother with the z1 in that size

and to think about it no one nationally competitive has come close to the top in 15 inch dunlop size

so to answer yes i am going by hear say, but at least this opinion is coming from someone who tested it with data and is a national champ. hes the one who tested in GRM tire test
so why would i spend my money to TRY a slower tire

for being honda-tech tire guy im surprised you dont know about the GRM street tire test....

http://forum.miata.net/vb/showthread.php?t=327254
this isnt the article but theres the results
http://grassrootsmotorsports.com/for...a/10151/page1/
as you can see the z1* isnt much faster than the old azenis

june 2009 issue .... and they recently did another test adding in the 225 toyo and i think the new advan. should be out in the august issue

whats your experience?

 

The 15s for the Z1 is too tall. A under HP car need as much acceleration as possible. The Z1 is good for every other size, comparable to all the top auto-x street tires out there, I run them on my non-civic.