Thứ Sáu, 6 tháng 1, 2017

Autocross Tires part 1

Absolut_Boost 07-13-2006 10:30 PM

Autocross Tires
Curious as to what types of tires everyone uses for autocross only tires. im trying to mount them on the stock 17x7 2006 WRX wheels. i dont want to spend too much, so anything over 200 a piece is out of the question.
DumbUglyDragon 07-13-2006 10:32 PM

Hankook RS2's and Falken RT-615's are among the most popular bang for the buck autoX tires.
FASTRPH 07-13-2006 10:51 PM

If you don't mind swapping out wheels and tires at the event, Kuhmo Ecsta V710s work VERY well and come in WRX friendly sizes and cost a little under $200 a piece.
DumbUglyDragon 07-13-2006 11:03 PM

What class are you running?
DrBiggly 07-14-2006 12:00 AM

[QUOTE=Absolut_Boost]Curious as to what types of tires everyone uses for autocross only tires. im trying to mount them on the stock 17x7 2006 WRX wheels. i dont want to spend too much, so anything over 200 a piece is out of the question.[/QUOTE]
Knowing what class would be helpful. :)

-Biggly
Gairloch 07-14-2006 12:14 AM

How well do 615s and RS-2s last under a car 3300+ lbs?
X WRX 07-14-2006 12:52 AM

I'm go'n autocross'n my first time this sat....woohoo can't wait
Absolut_Boost 07-14-2006 12:55 AM

D Stock, any tire that fits on a stock wheel is good for the class
flyboymike 07-14-2006 01:00 AM

[QUOTE=Absolut_Boost]D Stock, any tire that fits on a stock wheel is good for the class[/QUOTE]

To be competitive in D-stock, you need the R-compound tires. Hoosier A6 is supposed to be catching up, but the Kumho V710 sounds like it's still the tire to have. One of those two. I'm over in street-tire land, so you might want to double check on that.
DumbUglyDragon 07-14-2006 02:52 AM

[QUOTE=flyboymike]To be competitive in D-stock, you need the R-compound tires. Hoosier A6 is supposed to be catching up, but the Kumho V710 sounds like it's still the tire to have. One of those two. I'm over in street-tire land, so you might want to double check on that.[/QUOTE]

Yup -R-comps.

The way you're putting it sounds like you only have one set of wheels though?
SPOOLN 07-14-2006 02:53 AM

The A6 caught up. They still dont last as long as the 710, but they are quicker.
mesa50w 07-14-2006 03:16 AM

Hankook rs-2 225/45/17 everyday/wet
Kuhmo v710 245/45/17
KC 07-14-2006 07:43 AM

[QUOTE=SPOOLN]The A6 caught up. They still dont last as long as the 710, but they are quicker.[/QUOTE]
According to who and on what car? :)
ratt_finkel 07-14-2006 12:13 PM

[QUOTE=KC]According to who and on what car? :)[/QUOTE]
Chiles, Jacobs, Sharp, Strelniks all on GS. I think that CS has seen better results with it as well. Various SS entrants are claiming faster times as well.
Scooby South 07-14-2006 12:19 PM

[QUOTE=KC]According to who and on what car? :)[/QUOTE]


sheeeeeeesh...don't you remember.....Luke said it was so...:rolleyes:

there was a thread on it and everything....







;)

Bill
rankink 07-14-2006 12:59 PM

[QUOTE=ratt_finkel]Chiles, Jacobs, Sharp, Strelniks all on GS. I think that CS has seen better results with it as well. Various SS entrants are claiming faster times as well.[/QUOTE]


But is that because of the tire, or the sizes that Hoosier make that fit those specific cars better. Nothing I have seen so far says the A6 is faster than the v710 with everything else equal.
Absolut_Boost 07-14-2006 01:45 PM

these will be ordered at a later date to be put on to my stock wheels when i can afford another set of wheels, until then ill be putting Falken RT-615's 235/40/17 on my stockers
ratt_finkel 07-14-2006 03:45 PM

[QUOTE=rankink]But is that because of the tire, or the sizes that Hoosier make that fit those specific cars better. Nothing I have seen so far says the A6 is faster than the v710 with everything else equal.[/QUOTE]
How so? They were running the 205/45/16 hoosier on the Mini vs the 215/45/16 V710. Favor goes to Kumho there.

I'm not sure what the SS guys run. But I believe you're right that the hoosier CS size is better than the Kumho size.

There is is some good info here, mostly on the last page.
[url]http://sccaforums.com/forums/3/187326/ShowThread.aspx[/url]

If I were continuing to run the Suby I would be giving the A6's a shot.
rankink 07-14-2006 03:53 PM

I know that the GT3's need the lower profile Hoosier for gearing purposes. As for me I will be sticking with the v710 as I do not see the benefit of the A6 for my purposes. The deal breaker being the $160 price difference in a 275/40 and additional events I will get out of the v710 on a stock class car such as mine with limited front camber.
Tirewarmer 07-14-2006 04:19 PM

[QUOTE=rankink]But is that because of the tire, or the sizes that Hoosier make that fit those specific cars better. Nothing I have seen so far says the A6 is faster than the v710 with everything else equal.[/QUOTE]

The MINI size A6 is noticeably wider and slighter shorter than the V710. It isn't comparing apples and apples. I will agree the A6 is the tire to have on the MINI now which is a shame since they cost ~$50 more each and don't last as long as the V710.

Joe
supersport 07-14-2006 06:39 PM

I am not happy with my RS2's. I much prefer the RE070's. I am trying to wear them out as quickly as possible so I can get rid of them. They are bouncy and not as responsive as the RE070's. They do not give as much feedback either.
mesa50w 07-15-2006 12:23 AM

Joe- Are you going to be in Cola in the morning?
Tirewarmer 07-15-2006 06:36 AM

[QUOTE=mesa50w]Joe- Are you going to be in Cola in the morning?[/QUOTE]

Yes. Yes I will.

Joe
waktasz 07-15-2006 10:49 AM

[QUOTE=Absolut_Boost]these will be ordered at a later date to be put on to my stock wheels when i can afford another set of wheels, until then ill be putting Falken RT-615's 235/40/17 on my stockers[/QUOTE]


I don't know how well that size will fit on a 7" wheel.
RedTRex 07-15-2006 10:57 AM

[QUOTE=waktasz]I don't know how well that size will fit on a 7" wheel.[/QUOTE]

I think they will fit just fine.....

I am DS.
I run 225/45/17 Hoosiers A5's on a set of stock wheels - perfect fit

if you want 710's closest is 245/45/17 - which will roll the edge a little.
theicewall 07-15-2006 11:09 AM

I have Nitto Neogens as my daily driver tire in 225/40 and I like them. They break-away in a very predictable manner and have very good grip in the dry and not too bad grip in the rain. I've even driven on them in the snow in certain instances when I didnt have time to get my 16" wheels back on. The car slid a bit if pushed but never felt out of control. If you were picking an exclusive autox tire this would not be it though.
mesa50w 07-15-2006 11:13 PM

[QUOTE=Tirewarmer]Yes. Yes I will.

Joe[/QUOTE]


yes you were....congrats on your FTD. What did ya think of the course?
Chiketkd 07-15-2006 11:51 PM

[QUOTE=supersport]I am not happy with my RS2's. I much prefer the RE070's. I am trying to wear them out as quickly as possible so I can get rid of them. They are bouncy and not as responsive as the RE070's. They do not give as much feedback either.[/QUOTE]
Agreed. RE070's FTW! :banana: :banana:

I just installed RE070's and a Whiteline adjustable 27/29 FSB on my car, and in I'm about 2-2.5 seconds back from solid D-stock WRX drivers on r-comps.

To the OP, if you only have one set of wheels (like me) and you're on a budget, get some nice lightly used STI 'take-off' RE070's for $300-$400 (depending on remaining tread). They'll serve you well and if and when you want to get serious about the sport, then get an extra set of wheels and some 710's or A6's.
jcroy66 07-16-2006 10:42 AM

[QUOTE=RedTRex]I think they will fit just fine.....

I am DS.
I run 225/45/17 Hoosiers A5's on a set of stock wheels - perfect fit

if you want 710's closest is 245/45/17 - which will roll the edge a little.[/QUOTE]
But 235/40-17 street tires are a different ballgame.
1) They're shorter than either of the other sizes you listed, which definitely makes a difference in fitting on a narrower wheel.
2) They're street tires and don't have the same stiff carcass as a race tire.
DrBiggly 07-16-2006 11:03 AM

[QUOTE=supersport]I am not happy with my RS2's. I much prefer the RE070's. I am trying to wear them out as quickly as possible so I can get rid of them. They are bouncy and not as responsive as the RE070's. They do not give as much feedback either.[/QUOTE]
My experience has not been that they were bouncy, but feeling numb is normal for this tire. If they push badly, add more camber. Get as close to 35psi as you can without rolling over and driving on the sidewall -- obviously there is no grip on the sidewall. It's definitely a different tire to get used to. Tom and I were early adopters of the tire in the spring of '05 and it took us a good while to figure out how to deal with them properly.

The RE070s will help quite a bit on a camber challenged car due to the sidewall construction; they don't really roll over onto their sidewall as it compresses in a concave fashion.

So you've gone from "Camber isn't as much of an issue" tires to "OMG need tons of camber!" tires. Yep, it's going to feel a lot different. :)

-Biggly
djb_rh 07-16-2006 11:50 AM

275 A6's fit on an '05 STi. Any reason they wouldn't on a WRX? You may need spacers to get them centered in the wheel well, but I put them on a 17x7.5 stock wheel on the STi and they fit fine. I'm fairly certain they'll mount on a 17x7, too.

If they fit, I can't imagine a scenario where they wouldn't be quicker than a Kumho. Sure, they may not last as long and they probably cost more, but if you want absolute autocross grip...


--Donnie
adhowe70 07-16-2006 12:19 PM

There is a big difference between R-compounds and street tires when it comes to fitting tires onto narrow wheels. What you can do with an R-compound isn't necessarily what you want to do with a street tire. Do NOT stretch a street tire like the RT-615 anywhere near as hard as you'd stretch the A6 or V710.

Case in point: You'd never run a 265/45/16 on a 16x7.5 with street tires. Works great with the V710.

I think the 235/40/17 is right at the limit of street tires on a 7" rim. 225's would be much happier and last longer on the street. My 245's on 7.5" rims on my S2000 really weren't that great. On the front of a WRX, the tires would have folded because of the heavy front weight bias.
Absolut_Boost 07-16-2006 02:08 PM

taking all this into mind, which would be better on the stock 06 WRX wheel? 225/45 RE070 or a 225/45 RT-615? im running only about a second behind the 2nd overall car, as the 1st overall call hasnt been running in the past 3 events. and that is on the stock RE92's
rex-machine 07-16-2006 07:44 PM

autox tires
I think that you can get the RE070's for a pretty cheap price from an STi owner willing to sell them for something else. I have the Falken RT-615 225/45/17 and they are great street tires. They have a nice ride compliance. I don't have any experience with RE070's on my own car, but I have driven other WRX's with them, and they do feel like they have a stiffer sidewall.....hence better auto-x feedback.

One of my own questions for the hardcores:
I have the Rota slipstream 16x8.0 with 225 width Kumho 710's and I want a wider contact patch. The next size up for Kumho is 265/45/16. It has a 11.2" contact section width, the same as a 275 Hoosier R6.
[B]Does anyone have any experience with running the 265 with a WRX?[/B]
Any feedback would be appreciated.
adhowe70 07-16-2006 08:24 PM

No experience with the 265 on a WRX, but experience with both the 225 and 265 V710.

The 265 is monumentally wider and somewhat taller than the 225. I would be surprised if these fit without the need for spacers or a lower offset wheel. I do not believe that these will fit inside the fender, so plan on running enough spring to keep the fender off the tire. Also, the 265 is a squeeze onto a rim that narrow - you won't get the full 11.2 inches. I used them on the rear of my S2000 (see above) but it was obvious that the width was not being used appropriately. The 265's will also feel sluggish in slaloms as compared to the 225's.

Pros: slightly more grip (on my 7.5" rims, I coud run the same times 225's or 265's)
Cons: fitment, gearing (taller), response
Chiketkd 07-16-2006 10:17 PM

[QUOTE=Absolut_Boost]taking all this into mind, which would be better on the stock 06 WRX wheel? 225/45 RE070 or a 225/45 RT-615? im running only about a second behind the 2nd overall car, as the 1st overall call hasnt been running in the past 3 events. and that is on the stock RE92's[/QUOTE]
I'd say the 225/45 RE070 would be better as it'll grip as well as the RT-615 in the dry, will give you better feedback and turn-in during an autoX and can be had for less $$$ than a new set of RT-615's (if you get them off of a STI owner).
desertaero 07-16-2006 10:44 PM

I was set on getting used RE070's or RT615's but I found a set of S03 PP for very cheap...are these the stock tires on the AP2 s2k's?
njskatchmo 07-16-2006 10:50 PM

i just romped on my re92's today at autox.
theicewall 07-16-2006 11:30 PM

^^^ I couldnt stand the re92's for autox.... they pushed like all hell and I had to enter at least 5-7mph slower into every corner. I was stage 0 then too, and so I had a million times more lag to contend with which was a bad combo. At least with the better tires I could keep my speed up a bit and not be as laggy.
Absolut_Boost 07-17-2006 01:03 AM

has anyone had the RT-615 and the RE070? im getting good reviews from people, but hardly anyone out here in Vegas uses the RE070. just about everyone not using R-compounds is using the RT-615. if someone here has used both tires and can give me a subjective breakdown of each tire and not just "get this tire, its better" that would be greatly appreciated
homiusang 07-17-2006 03:44 AM

[QUOTE=desertaero]I was set on getting used RE070's or RT615's but I found a set of S03 PP for very cheap...are these the stock tires on the AP2 s2k's?[/QUOTE]

Those were S-02s on the earlier model S2k.
Abe Froman 07-17-2006 07:29 AM

[QUOTE=Chiketkd]I'd say the 225/45 RE070 would be better as it'll grip as well as the RT-615 in the dry, will give you better feedback and turn-in during an autoX and can be had for less $$$ than a new set of RT-615's (if you get them off of a STI owner).[/QUOTE]

The problem I have with the RE070s is when they are hot they lose their grip very quickly. I tend to overdrive the car :( and the RE070s punish me for it on the later runs...I guess it's a good way to learn...
jamesohoh7 07-17-2006 08:15 AM

[QUOTE=Absolut_Boost]has anyone had the RT-615 and the RE070? im getting good reviews from people, but hardly anyone out here in Vegas uses the RE070. just about everyone not using R-compounds is using the RT-615. if someone here has used both tires and can give me a subjective breakdown of each tire and not just "get this tire, its better" that would be greatly appreciated[/QUOTE]

I ran through a set of 615's earlier this year (Feb to May)... still have them, but they're -very close- to being 'done' and heat-cycled out. In June's events, I ran my re070's b/c I had no other choice.

The 070's have some miles on them (about ~10K) and I did a couple of events on them in Jan '06, then daily-drove them. I really liked them in January's events.. they felt awesome. They were fairly new at the time too..
just a few months old. They were much better than my burned up RS2's I had at the time.

Then I got new 615's. It must be said, the 615's are 245/45.. so extra width here matters, and no doubt a lot. Just saying... since we can't get 070's in anything other than stock STi sizes, it's worth noting the size diff b/c no one buys 225/45/17 615's for an STU car (which is where I'm at).

My initial impression going to them after the 615's.. they were 'not good', and not as grippy as my 615's. I chalked it up to them perhaps having a 'layer of blech' from road-driving that needed to be scrubbed through. The next event, they were better, but still not up to the 615's. The next event, closed the gap a little more.. but in the end, I'd still say the 615's are better. The 070's really heated up very quickly.. I mean, like after one run.. very hot.. hot to the touch. I can blame myself -some- for maybe overdriving them, but my 615's were never as hot after one run. I don't remember them getting that hot in Jan (and here, in January, it's already 80+ degrees outside, so it's not like it was b/c it was cold).

I'll probably be on them again for the next event (haven't gotten any new tires yet), but I'm not looking forward to it.

I suspect that having used them as daily drivers (and I'm pretty hard on my tires, day to day), I probably have heat cycled out the 070's a bit.. they're not dead, but harder than they perhaps might normally be.

My 615's heat cycled out very quickly, but I had some double-drives on them, and a practice day... a fair number of runs total I guess. I also daily drove them for about a month + half at one point (too lazy to change tires! :lol: ).

If I had the $$ to spare, I'd get Neovas. But, trying to stick to my budget, I'll no doubt get 615's again (and it's worth noting one more time that they would be 245's, so not a direct comparison to 070's).

So...my view: for the extra width you can get, 615's are probably the better setup for ST classes.

My setup while driving these tires: front + rear sways (Hotchkis). No extra camber.
crystalhelix 07-17-2006 10:33 AM

[QUOTE=rankink]I know that the GT3's need the lower profile Hoosier for gearing purposes. As for me I will be sticking with the v710 as I do not see the benefit of the A6 for my purposes. The deal breaker being the $160 price difference in a 275/40 and additional events I will get out of the v710 on a stock class car such as mine with limited front camber.[/QUOTE]

bingo..
SharkWagon 07-17-2006 01:50 PM

My opinion

/flame on

My understanding is the OP is new to autox, (if not he would know the popular tires, right?)

If you are new to autox I don't think r-comps will be as useful as sticky street tires, seat time and an evo school. If you happen to a spare set of wheels - Azenis 615's or hankooks are half of your budget, and wear longer then the 710's or Hoo$ier$. That way you have stickier rubber then regular street tires but can afford enough rubber to really learn on. You could use the left over cash towards an evo school.

/flame off
supersport 07-17-2006 02:49 PM

[QUOTE=jamesohoh7]I ran through a set of 615's earlier this year (Feb to May)... still have them, but they're -very close- to being 'done' and heat-cycled out. In June's events, I ran my re070's b/c I had no other choice.

The 070's have some miles on them (about ~10K) and I did a couple of events on them in Jan '06, then daily-drove them. I really liked them in January's events.. they felt awesome. They were fairly new at the time too..
just a few months old. They were much better than my burned up RS2's I had at the time.

Then I got new 615's. It must be said, the 615's are 245/45.. so extra width here matters, and no doubt a lot. Just saying... since we can't get 070's in anything other than stock STi sizes, it's worth noting the size diff b/c no one buys 225/45/17 615's for an STU car (which is where I'm at).

My initial impression going to them after the 615's.. they were 'not good', and not as grippy as my 615's. I chalked it up to them perhaps having a 'layer of blech' from road-driving that needed to be scrubbed through. The next event, they were better, but still not up to the 615's. The next event, closed the gap a little more.. but in the end, I'd still say the 615's are better. The 070's really heated up very quickly.. I mean, like after one run.. very hot.. hot to the touch. I can blame myself -some- for maybe overdriving them, but my 615's were never as hot after one run. I don't remember them getting that hot in Jan (and here, in January, it's already 80+ degrees outside, so it's not like it was b/c it was cold).

I'll probably be on them again for the next event (haven't gotten any new tires yet), but I'm not looking forward to it.

I suspect that having used them as daily drivers (and I'm pretty hard on my tires, day to day), I probably have heat cycled out the 070's a bit.. they're not dead, but harder than they perhaps might normally be.

My 615's heat cycled out very quickly, but I had some double-drives on them, and a practice day... a fair number of runs total I guess. I also daily drove them for about a month + half at one point (too lazy to change tires! :lol: ).

If I had the $$ to spare, I'd get Neovas. But, trying to stick to my budget, I'll no doubt get 615's again (and it's worth noting one more time that they would be 245's, so not a direct comparison to 070's).

So...my view: for the extra width you can get, 615's are probably the better setup for ST classes.

My setup while driving these tires: front + rear sways (Hotchkis). No extra camber.[/QUOTE]

Do you put the 615 245's on stock STi Wheels? It seems to me that with my RS2's I could have put a little wider than a 225 on the stock wheels. Kinda looks like the lowriders when they put the small tires on the really wide rims. With the 070's they seem to fit really nice.

Anyone have any experience with the RE-01R's?
Absolut_Boost 07-17-2006 03:14 PM

im fairly new, only participated in 3 events here and 1 in ohio, trying to get more into the sport here in vegas since they run year round. thanks for the help everyone, ill look into the 235 RT-615s fornow and when i get a second set of wheels step up to the 245 Khumo V710's
jamesohoh7 07-18-2006 08:06 AM

[QUOTE=supersport]Do you put the 615 245's on stock STi Wheels? It seems to me that with my RS2's I could have put a little wider than a 225 on the stock wheels. Kinda looks like the lowriders when they put the small tires on the really wide rims. With the 070's they seem to fit really nice.

Anyone have any experience with the RE-01R's?[/QUOTE]

I hear you on the re01rs.. I've read precious few autox-type reviews of them... waiting for that info to come in... -hoping- they prove a worthy match to advans and so inspire a price-war :disco:

I had the 615's on a set of Rota Torques (17x8), but my STi wheels are 17x8 anyway (2005 model), so it wouldn't have mattered from that aspect. But, I still have the 070's on the BBS's for daily-driving (and autox'ing as of late).

I would be curious to try another set of 070's on my car (for autox) if I could get a nice new set for cheap; like 1000 mile take-offs from someone that didn't really put any wear on them. They'd have to be -much- cheaper than a set of 615's go for b/c otherwise, I'm going with those again.

I feel like I'm short changing them a bit in my 'review' up there, but the circumstances of how my comparison went down are probably just not typical... and definitely are not scientific :) My driving could just as likely be blamed for my differing opinions... I'm hardly consistent.

I've also added camber plates + springs in the last couple of weeks, so next event may be an eye-opener to the good for my 070's if I've scrubbed all the crud off -plus- having camber to work with.
jcroy66 07-18-2006 09:30 AM

[QUOTE=jamesohoh7]I hear you on the re01rs.. I've read precious few autox-type reviews of them... waiting for that info to come in... -hoping- they prove a worthy match to advans and so inspire a price-war :disco:[/QUOTE]Why would the existence of another high-priced tire inspire a price-war? If anything would inspire Yokohama's prices to drop, I think it would be the pricing and performance of the Kooks. Or maybe the 615s.
jamesohoh7 07-18-2006 05:39 PM

[QUOTE=jcroy66]Why would the existence of another high-priced tire inspire a price-war? If anything would inspire Yokohama's prices to drop, I think it would be the pricing and performance of the Kooks. Or maybe the 615s.[/QUOTE]

price-war in the sense of "who can undercut who". Currently, the re01r's are a bit cheaper as it is. If they start to sell a bunch... you -might- expect Yoko to drop the prices on neovas. Not unlike Falken did when the rs2's started to steal some of their market share... recall that 615's were a good bit more pricey upon debut.

I guess I've just never heard anyone use the term 'price-war' to imply collusion, but perhaps I should've been more clear.

I'm more curious as to why you'd think I'd be thinking a 'price-[b]raising[/b]-war' would be good!? :lol:

Anyway.. rest assured, I meant 'the good kind of price-war for consumers' :)

Không có nhận xét nào:

Đăng nhận xét