Chủ Nhật, 29 tháng 1, 2017

Tire and Wheel ? part 1

IBAUCLAPlaya 07-08-2005 01:37 PM

Tire and Wheel ?
Next year I am looking to get a set of race wheels and tires to compete with in STX. So far I have found

Rota Torque 17 x 8
Rota Slipstream 16 x 8
SSR Comp 17 x 7.5
SSR Comp 16 x 7.5

Obviously the SSRs are more expensive. Would it make sense to spend around $650 for the Rota's which weigh in around 17 lbs instead of $1200 for the SSRs which weigh 12 lbs? Which would be better to get, the 16" or the 17"? Would I really notice a difference between the Rotas and the SSRs in the weight department? If anybody has another suggestions of wheels that are wide, lightweight, and somewhat cheap, please let me know...

Now for tires. This year I am running 205/55-16 Azeni 215s on the stock WRX wheels. Next year looking to put on 245s on the Rotas since they are the cheapest I think. What exact tire size would I be looking at if I put 245s on the 16"? 17"? And can anybody recommend a relatively cheap tire for STX next year? Any reviews on the new Azeni 615s?

Thanks in advance.
leecea 07-08-2005 04:40 PM

I think you'll need to look at the big picture of budget versus setup to answer the price question. Plenty of very good STX drivers use Rotas or similar wheels. Top drivers will certainly pay the money to save 20 lbs of wheel weight, but they've also invested lots of time to improve their skills and lots of money on their overall car setup.

If you haven't already got a well preped car and lots of experience, you may not realize the benefit of the 12lb wheels. Buy the Rotas and spend the difference on driver training, suspension upgrades, or something like that.

With regard to tire size, I think 245/40x17 or 245/45x16 are the sizes that will closely match the stock setup for diameter (ie. gearing). You may find more choice in 17s. You can also look for smaller diameter tires to provide better gearing - some people prefer this to help accelerate out of slow corners.

There have been a few threads on STX tire choice. Search and you'll probably find some good threads. I think the general opinion is that the top STX tires are pretty close in performance.
waktasz 07-08-2005 04:42 PM

Buy the torques and take your spare out of the trunk :p
Patrick L 07-08-2005 04:51 PM

I would go for the 16x8's for weight savings with some shaved 245-45-16 Hankook Z212.
rankink 07-08-2005 04:53 PM

I think your torques are going to be closer to 18+ pounds actually. Not certain, but may want to check.
IBAUCLAPlaya 07-08-2005 08:48 PM

Thanks for the info so far. I was looking more toward the new Azeni 615s. Any reason why not to look at these? And if I got these wheels and tires I would obviously need my fenders rolled right?
Zoinks 07-08-2005 10:34 PM

[QUOTE=IBAUCLAPlaya]Next year I am looking to get a set of race wheels and tires to compete with in STX. So far I have found

Rota Torque 17 x 8
Rota Slipstream 16 x 8
SSR Comp 17 x 7.5
SSR Comp 16 x 7.5

Obviously the SSRs are more expensive. Would it make sense to spend around $650 for the Rota's which weigh in around 17 lbs instead of $1200 for the SSRs which weigh 12 lbs? Which would be better to get, the 16" or the 17"? Would I really notice a difference between the Rotas and the SSRs in the weight department? If anybody has another suggestions of wheels that are wide, lightweight, and somewhat cheap, please let me know...

Now for tires. This year I am running 205/55-16 Azeni 215s on the stock WRX wheels. Next year looking to put on 245s on the Rotas since they are the cheapest I think. What exact tire size would I be looking at if I put 245s on the 16"? 17"? And can anybody recommend a relatively cheap tire for STX next year? Any reviews on the new Azeni 615s?

Thanks in advance.[/QUOTE]

Couple things. I think it kinda depends on your level of experience/competitiveness. If you're relatively new, I promise you that you'd be better off with cheaper rotas, and spending the extra $600 or so on two or three Evo schools. I have 17x7.5" Torques + 225/45 Azenis 215s right now, and though they are noticeably heavier than the stock wheel/tire combo, I don't think it's enough to matter at my level.

Also, and someone who knows better can chime in here, but I'm not sure you need to worry about going to 8" width right now. To run 245mm Azenis on a 17" wheel, you're at a 45% ratio, and that taller diameter may hurt your gearing more than the extra width would help... Anybody? At any rate, I think last year most of the guys running the older Azenis nationally were using 225/45/17 - I think people running the newer RT-615's may be running the same size. Are the any nationally-competitive WRXs running 16" wheels in STX?

Also, check out the Grassroots Motorsports tire test thread in this forum for some discussion about other good street tires.
IBAUCLAPlaya 07-08-2005 11:35 PM

Zoinks thanks for pointing that out. For the people who are STX nationally competitive, what size wheels and tires would be best for me? Please include the width of the wheel as well. And sorry for the newb ? but where can I find pros/cons of shaved tires as well as what shaving a tire actually is?

Thanks again for the help.
afpdl 07-09-2005 02:16 AM

[QUOTE=rankink]I think your torques are going to be closer to 18+ pounds actually. Not certain, but may want to check.[/QUOTE]
Closer to 20lbs.
PhilC 07-09-2005 10:22 AM

[QUOTE=IBAUCLAPlaya]Zoinks thanks for pointing that out. For the people who are STX nationally competitive, what size wheels and tires would be best for me? Please include the width of the wheel as well. And sorry for the newb ? but where can I find pros/cons of shaved tires as well as what shaving a tire actually is?

Thanks again for the help.[/QUOTE]

Speaking up even though I'm still working on that competitive part (the car is there, I'm not). Go for 17x8s because your tire choices for 16s are pretty limited. And you could always get what many of the rest of us have now: Enkei RPF-1s. Light, moderately cheap and don't look bad. Also one of the few 17x8s out there with the proper offset to allow many people to run 245/40-17s without rolling the fenders (at least on a sedan). Fit without rolling the fenders will depend on your suspension and camber settings though, some people fit with no problem others have to roll.

Shaving: Take a brand new perfectly good tire and shave all but the last 4/32nd or so of tread off of it. For National's take a brand new perfectly good tire and shave all but the last 2/32nds off of it. Pros, gets rid of a lot of extra tread which will cause tread squirm, adding additional heat and goofy wear patterns when run. Also gets rid of some amount of weight and on tires like the FK-451s gets them down to what is reported as a softer compound. Cons: Well you just took a brand new tire and paid extra to have it's street life decreased by 80% or more. Definitely not something you want to do with your daily driver tires. For competition I don't think there is a con other than you now may need another set of full tread depth tires to be competitive in the rain.
leecea 07-09-2005 11:50 AM

[QUOTE=IBAUCLAPlaya]Zoinks thanks for pointing that out. For the people who are STX nationally competitive, what size wheels and tires would be best for me? Please include the width of the wheel as well. And sorry for the newb ? but where can I find pros/cons of shaved tires as well as what shaving a tire actually is?

Thanks again for the help.[/QUOTE]

To restate what has already been said, don't worry too much about 'nationally competitive' at the moment. Get some decent wheels and one of the respected STX tires and have fun learning to be a good autox driver. If the upgrade bug has bitten you, maybe change the front and rear swaybars, since that's a cheap mod that really helped one of the local STX drivers in this area.

Shaving tires and spending $$$ on the best components will come later when you know you need it to get that last couple of 1/10th secs keeping you out of a top spot at a big event.
IBAUCLAPlaya 07-09-2005 04:47 PM

Well the tires will be dedicated race tires, but if I shave the 615s at the beginning of next year, can I expect them to last all year which is about 20 events? Phil would 235/40-17s be okay to run on 17 x 8, because that is all the 615 Azenis offer? Also I would be able to run the same tire on a 17 x 7.5" wheel right and notice no difference right? I already have the RSB and the FSB is on the way. The wheels and tires will be for next year, right before I attend an Evolution driver's school. Then maybe coilovers in the middle of the year.
cooleyjb 07-09-2005 06:57 PM

I'd go with the 17x8's if I had to choose one rim. The reason is flexibility. You are never going to be getting a tire that is too narrow for that rim in STX. However a tire like the 245/35 doesn't go onto a 7.5" rim from what I've been told and that size tire was used by some people at nationals last year. I have 2 sets of 17x8's for my car one with the 225/45 Azenis 215 and one with the 451 245/35. Once the 215's are toast we are going to get the Kook's in 235/40 unless anotehr tire presents itself or the Yokohama's drop their price drastically.
RogersWRX 07-10-2005 05:30 PM

I'd vote for the 16x8's to save weight / rotational mass, and go with the Hankook Z212 or the Falken FK-451 in 245/45/16.... Wide and light!! And if you're not playing for the last tenth of a second at top of the heap, why pay the extra $$ for the 615's??

[url]http://www.discounttiredirect.com/direct/searchTiresBySize.do?sw=false&cs=245&ar=45&rd=16[/url]

JMHO!
Subdued 07-11-2005 08:13 AM

If you are interested I have a set of 245/35/17 Falken FK-451's already shaved and ready to go. I picked them up from another member here on the board, but no longer have the car to run them on at National Tour. Let me know if there is any interest in these.
KC 07-11-2005 08:17 AM

[QUOTE=RogersWRX]I'd vote for the 16x8's to save weight / rotational mass, and go with the Hankook Z212 or the Falken FK-451 in 245/45/16.... Wide and light!! And if you're not playing for the last tenth of a second at top of the heap, why pay the extra $$ for the 615's??

[url]http://www.discounttiredirect.com/direct/searchTiresBySize.do?sw=false&cs=245&ar=45&rd=16[/url]

JMHO![/QUOTE]
Because when he does get serious, he'll have a wheel (as others suggest 17") that uses a wider range of tires than being limited to his selection of 16" tires to fit his 16" wheels. For the 1st year, sure, he might be fine... but when he wants to step it up a bit the following year, he's got to do the hunt all over again.

Just get 17s now and get it over with. Rotas would also be my selection.

--kC
Scooby Freak 07-11-2005 09:59 AM

I'd also suggest a 17 x 8, either the rota or the enkei (more money less weight) that phil suggested.

For tires, it's a little early to pick next years tire, I'm still trying to pick this years tire. There has been many new good choices this year & there is no clear winner so far.

For your first full season, I would pick a tire that doesn't need to be shaved. In the beginning, the slight performance advantage for severly shortening the tires life isn't worth it. Then you will only need one set of tires for the season & you can spend more on developing the car & driver.

-jeff
cooleyjb 07-11-2005 06:23 PM

[QUOTE=Subdued]If you are interested I have a set of 245/35/17 Falken FK-451's already shaved and ready to go. I picked them up from another member here on the board, but no longer have the car to run them on at National Tour. Let me know if there is any interest in these.[/QUOTE]


were those makofotos??

I would have bought them but my car is out of commision :( until the TEIN's get back from Japan which is scheduled for 9/1 and the first event will be at Nationnals for which I have just enough 451 left for that one event if i need it.
PKer 07-11-2005 06:56 PM

17x8 Rota
225/45-17 Azenis RT-615 unshaved.
Or cheaper would be 225/45-17 Hankook z212? From what I've seen the 'kooks seem to wear wierdly (is that a word) when at full tread.
IBAUCLAPlaya 07-11-2005 09:22 PM

^^^Why 225 and not 235/45-17s?
waktasz 07-11-2005 09:44 PM

[QUOTE=IBAUCLAPlaya]^^^Why 225 and not 235/45-17s?[/QUOTE]

235/45 are much taller...playing with gearing there.
Scooby Freak 07-11-2005 10:28 PM

235/40 is better gearing. You can get the Z212 in that size, but the RT-615 isn't released in that size.... yet.
Subdued 07-11-2005 10:42 PM

[QUOTE=cooleyjb]were those makofotos??

I would have bought them but my car is out of commision :( until the TEIN's get back from Japan which is scheduled for 9/1 and the first event will be at Nationnals for which I have just enough 451 left for that one event if i need it.[/QUOTE]

Yes, they were makofotos. I also have a set of of off the shelf Teins (flex) that were waiting to go on the car. How serious was the repair/modification that you had to send the Teins out? Are you running RA or HA?
MrDestructo 07-11-2005 10:47 PM

[QUOTE=IBAUCLAPlaya]Next year I am looking to get a set of race wheels and tires to compete with in STX. So far I have found

Rota Torque 17 x 8
Rota Slipstream 16 x 8
SSR Comp 17 x 7.5
SSR Comp 16 x 7.5

[/QUOTE]

Go for some 5zigen FN01RC in 17X8. They are about 16# each, cost ~$800 for the set, and are used by the reigning 2004 ProSolo National Champion. They are the best deal around.

You can thank later Josh. ;)
cooleyjb 07-11-2005 11:05 PM

[QUOTE=Subdued]Yes, they were makofotos. I also have a set of of off the shelf Teins (flex) that were waiting to go on the car. How serious was the repair/modification that you had to send the Teins out? Are you running RA or HA?[/QUOTE]


RA's and the rear struts were totally blown out on the way to the Peru tour. They are getting valved for the 10K/12K springs though so that'll help too. I'll probably end up selling them at the end of the year though because I just got a shifter for F125
IBAUCLAPlaya 07-12-2005 01:35 PM

Thats MrDestructo for that wheel info. So you suggest I should get the 235/40-17s for the 17 x 8s, and I will get the better gearing right?
IBAUCLAPlaya 03-21-2006 03:17 PM

Just thought I would bump this old thread. I was looking on wheel weights and found that the 5Zigen Beckett FN01R-C wheels weight in at 14.7 lbs for 17x8, 5x100, 48 offset and are either forged (per Wheelweights.net) or cast aluminum (per the site I'm looking to order them from). The RPF1s weigh in at 15.6 for 17x8, 5x100, 45 offset and cast. I actually found the 5Zigen wheels for a damn good price, considerably cheaper than the RPF1s, do you think I should go with those instead? Are they strong enough?
angryfist 03-21-2006 03:21 PM

look at that data and decide for yourself. plenty of people run both the enkies and the 5zigens. they are both good wheels you cant go wrong with either. it all comes down to personal preference and we cant decide that for you :)
IBAUCLAPlaya 03-21-2006 03:46 PM

Well now I'm confused. I just talked with Garrett at WorldOne and he said the Enkeis in the 17x8s weigh 13.6 lbs, not 15.6. Anybody with the Enkei wheels care to clarify this for me? And I know people run the FN01R-Cs, but does anybody run the Beckett version of the FN01R-Cs? The Beckett version looks like weighs about 2 and a half pounds less than the regular FN01R-Cs...
waktasz 03-21-2006 04:04 PM

Have a link to this Beckett version? I've never head of them...seems wierd that they'd be forged since the C in fn01r-c means Cast.
BlackSnake 03-21-2006 04:09 PM

[QUOTE=IBAUCLAPlaya]Well now I'm confused. I just talked with Garrett at WorldOne and he said the Enkeis in the 17x8s weigh 13.6 lbs, not 15.6. Anybody with the Enkei wheels care to clarify this for me? And I know people run the FN01R-Cs, but does anybody run the Beckett version of the FN01R-Cs? The Beckett version looks like weighs about 2 and a half pounds less than the regular FN01R-Cs...[/QUOTE]


I will check weight of the enkies when I get home... the RPF1's correct?
IBAUCLAPlaya 03-21-2006 04:11 PM

Here is a link to the Beckett version that I found online for a good price: [url]http://www.autocarparts.com/part/1138/16[/url]

And yes BlackSnake I'm talking about the RPF1s; thanks for checking the weight for me. Anybody have the Becketts or the FN01R-C that can check for me?
Scooby Freak 03-21-2006 04:12 PM

5zigen doesn't list the forged version in a 17 x 8, 5 x 100 +48 and I would imagine the forged version would be a lot more expensive.
[url]http://www.5zigen.co.jp/product/wheel/becketts_fn01r/index.html[/url]
[url]http://www.5zigen.co.jp/product/wheel/becketts_fn01r_c/index.html[/url]

edit: I think the vendors are exaggerating the lightness. The 5zigens are likely 17.xxlbs. and the Enkeis are likely 15.xxlbs. They are both good choices, so I would pick the one that fits your budget and style.
IBAUCLAPlaya 03-21-2006 04:26 PM

I think I just figured it out. On the sime site I linked, they also have the Becketts FN01R-Cast. My guess is this place doesn't know anything and named the FN01R-Cs as Beckett FN01R-Cs because they also have a Beckett FN01Rs which are the lighterweight forged ones. But if you could still post that number BlackSnake, I would appreciate it.
Scooby921 03-21-2006 04:34 PM

Another choice is the Buddy Club P1 Racing SF. Weighs 16-17lbs and can be had for around $170 each.
BlackSnake 03-21-2006 04:37 PM

No Prob, I will check as soon as I get home from work. So give or take 5 hours :(
PhilC 03-21-2006 04:55 PM

The RPF1s are pretty darn close to 16 pounds, ship weight of the box with packing and two wheels was 35 pounds. We've also got a set of the 5Zigens, ours are older ones that we actually waited a couple of months to get imported from Japan. Kind of pissed me off that Discount Tire started carrying them and you see them everywhere now. At any rate ours are 17x7 (a size that 5Zigen no longer makes) and weigh in at right near 16 as well. Figure maybe an extra pound for the 17x8s and I think 17ish is probably right. If I remember right 5Zigen used to make the forged FN01s in 17x8 but they haven't for a couple of years, only 17x8.5 for the forged.

Either of the two is a good choice and I wouldn't hesitate to use either one for your autocross wheels. Personally for a street wheel I really like the look of the 5Zigens and our hyperblack has held up great and looks good too.
IBAUCLAPlaya 03-21-2006 06:24 PM

Probably gonna get the RPF1s for autox and run my Koseis on the street still this year. Where do you suggest ordering the RPF1s? Best price I've found is $990 shipped.

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