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-   -   What tires for stock FD rims? (https://www.rx7club.com/suspension-wheels-tires-brakes-20/what-tires-stock-fd-rims-550768/)

AGlobalThreat 06-16-06 04:26 PM

What tires for stock FD rims?
 
What tires are u guys using on stock FD rims? Pushing 350rwhp with a light drivetrain, light chasis, and extremely short gearing, and am having a hard time picking tires for the street. I know I could get MT ET streets, or Nitto NT-01s.. but this is a street car, so I want them to last at least close to a year.

Was considering:
225/50/16 Azenis RT 615's
255/50/16 Ziex 512

What are u guys running? The tire selection for 16 inch rims is horrible, I wish we had more choices.

TIA :)

maxcooper 06-16-06 04:42 PM

RT615s are nice and sticky. I don't run stock sizes, but I am happy with their grip. I have run two sets of ST215s on my daily driver, and they each lasted more than a year.

I haven't used them personally, but I would expect the Ziex to have much less grip.

-Max

maxcooper 06-16-06 04:43 PM

You might consider 245/45-16s, too, which fit on 8" rims and keep roughly the same overall diameter.

-Max

enigma662 06-16-06 05:05 PM

Tire Rack has a special going on for the Max Performance Bridgestone Potenza RE050A, since there's a new Pole position version. The 225/50/16 stock FD rim size is marked down from $154 to $79. Or you could go for the Kumho ECSTA MX, top performance dry tire, probably not as good in the wet though, $89 each.

AGlobalThreat 06-16-06 06:00 PM

Well what I was planning to do was buy 2 falken ziex 512s for the rear and seeing how they hold up. If they do good, buy 2 more for the fronts. But if they don't do good, I wanted to get better tires for the rear..

But the problem I realized was that the ziex's will be 255/50/16, and nearly every other stickier tire, is smaller. Would I run into problems aside from it being quite odd to having a bigger, slicker, tire up front, and a smaller, softer, tire out back?

Thanks for the quick help too :)

And I'm only worried about dry. IF i drive in the rain, I am extremely cautious.

rynberg 06-16-06 06:53 PM

Don't run mismatched or incorrect sizes! The Ziex tires are mediocre performance tires at best. As the others already pointed out, there are very grippy tires out there for not much money.

AGlobalThreat 06-16-06 07:06 PM

Any opinions on these? Mainly focused on just the tires 1. lasting and 2. holding straight line traction

BFGoodrich g-Force Sport
Great dry handling and affordability. Z-speed rated.

225/50ZR-16 92 RBL

$82.00 ea.

No Mileage Warranty Available

Treadwear: 340
Traction: A
Temperature: A
Speed Rating: ZR

rynberg 06-17-06 11:51 AM

Those are mediocre tires. The Kumho MX are only 89/tire in that size and will blow those out of the water.

spot_skater 06-17-06 12:54 PM

I'm pretty happy with my G-Force Sports. Running that size on my FC.

What don't you like about them, Rynberg? Or are the Kumho's just an all around better tire?

AGlobalThreat 06-17-06 04:56 PM

Where are the MX's? They don't even have them listed on discounttiredirect.

I'm mainly leaning towards the rt-615's now.

rynberg 06-17-06 06:43 PM


Originally Posted by spot_skater
I'm pretty happy with my G-Force Sports. Running that size on my FC.

What don't you like about them, Rynberg? Or are the Kumho's just an all around better tire?

They are just not in the same performance league as Kuhmo MX. The BFG KD is in that realm, not the Sports.

enigma662 06-18-06 07:59 PM


Originally Posted by rynberg
They are just not in the same performance league as Kuhmo MX. The BFG KD is in that realm, not the Sports.

Yep. You can look on tirerack.com, they put the tires into categories by performance. Extreme Performance Summer>Max Performance Summer>Ultra High Performance Summer. Ecsta MX is Extreme, G-Force Sport is Ultra High.

AGlobalThreat 06-19-06 01:00 AM

tirerack doesn't have Falken Azenis RT-615's, discounttiredirect doesn't have Khumo Ecsta MX, those are the 2 I need to compare, and I can't. I want the best straight line traction available without going to poor mileage R compounds.

maxcooper 06-20-06 04:03 AM

With 350RWHP and tires that fit on 8" rims, one of these will be true:
* grip under acceleration will be poor
* treadlife will be poor

You can't have it both ways. Sorry.

I recommend sticky tires. The Falken RT615 or Kumho MX are good choices. Both will wear relatively fast (compared to your average street tire on a sedan), but not as fast as R-compounds.

"Lesser" tires will spin like crazy -- you will be disappointed.

Tall sidewalls will help increase the grip, gearing, and rotational inertia (= less spinning), but they start to look silly in a hurry. 255/50-16 might be just over the "silly" line, but it is a matter of opinion.

255s on the rear with 225s in front will look dumb. It will look 10x as dumb the other way. I recommend using the same tires at each corner. You will be able to rotate them, which will extend their treadlife.

-Max

maxcooper 06-20-06 04:04 AM

vulcantires.com has Falkens.

AGlobalThreat 06-20-06 04:39 AM

Well ok everything out the door, price, treadlife, etc.


Which will grip better under acceleration

Khumo MX
Azenis RT-615

AGlobalThreat 06-24-06 07:11 PM

Bump, still wondering which will grip better under acceleration

Khumo MX
Azenis RT-615

rynberg 06-25-06 07:04 PM

The Azenis, no question.

njstreetrx7 06-26-06 05:54 PM

why do u say 255 in rear and 225 in front will look dumb??? i have them and they loook and work reall good for me

KeloidJonesJr. 06-26-06 06:30 PM

Falkens!

AGlobalThreat 06-26-06 06:42 PM

I actually decided on Nitto Nt-555 drag radials. I want 1st gear back and a sub 2.0 sec 60'

Nitto Nt-555 drag radials last longer than BFG's, come in 245/50/16 (96), and they're only $136, so they should be perfect.

b00b 06-26-06 08:34 PM


Originally Posted by njstreetrx7
why do u say 255 in rear and 225 in front will look dumb??? i have them and they loook and work reall good for me

on all 4 16x8's wheels.... you have 225/50/16 on the fronts and 255/50/16 on the rears?

thats sort of weird =\

MontegoRx 08-05-06 09:29 AM

I planned on running 225/50s Front and 245/45s rear. I don't think it would look out of place.

with the 255/50s out back, the sidewall is probably what makes people say it won't look right.

br555 08-08-06 06:40 PM


Originally Posted by njstreetrx7
why do u say 255 in rear and 225 in front will look dumb??? i have them and they loook and work reall good for me

I run the same setup when using drag radials (M/T) and while they hook like crazy, IMO they do look over the top - Most consider stock rims w/drag radials to be a "sleeper" setup but when you go that big in back it's obvious something is up...


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