Hey I know that there was a similar topic started somewhere else on the forum but to my horrible luck I could not find it. I just wanted a good recap of what kind of tire to buy. I want the best possible traction without worrying about the price. I know the supra's are the tire for the money.. But I dont want to be screachin out of every gear. Also whats a good size? I mean I have heard people say that getting bigger tires/rims have a direct effect on your 1/4 miles times. Is this true? I just need some clarity, and again I am sorry for posting out of category.

Maybe Et Street tires will help out some.. https://www.nopistons.com/forums/pub...IR#>/dunno.gif

For your stock rims, a 225-50-16 Nitto 555R Drag Radial will be the best for street racing purposes, they hook up fairly descent and can still be driven on to the store or to a friends house. No deal. If you alter the rim size then you need to try and keep your Rolling Radius roughly the same as stock. Taller tires will create taller gearing, and vice versa.



For track racing, MT ET streets can't be beat and they are still DOT approved tires. Which are legal for public roads even though they provide little to no wet traction at all. Dry payement only for safety sake. If you want a wider tire a 245-45-16 will also work and not change your RR too much.



When tires are measured the first number represents tread width, the second number represents sidewall height, via a percentage of the tread width, and the last number of course is wheel size.



So a 225-50-16 is 225mm wide, and the sidewall height is 50% of 225mm.

Which equals a 112.50 sidewall.

So a 245-45-16 is 245mm wide, and the sidewall height is 45% of 245mm.

Which equals a 110.25 sidewall.



So the difference in these tires is 2.25mm for each sidewall which equals 4.5mm for total height difference. So roughly 1/4" difference between the two.



If you switch wheel diameter then the same will apply but the wheel will be an inch taller as well so you must account for it when you figure your RR.

Ok, so I should stay with stock rim sizes correct? Ok that said and done, is their any advice on Yokohama's tires like their avs's or their parada's? I would like to get the best grip of the street but not have to freak when water is on the ground.. Driving slow would be a must.

Yes I started it in single T but like yours it was moved but a saved the info on my file so here is the highlights of several post put together:

have had alot of different tires. To answer some questions here. The Potenza S-02 PP are great tires but too expensive. I actually liked the S-02's more than the S-03's. The Kumho Ecsta Supra 712 is a good cheap tire. It will actually wear pretty descent, over 20,000 miles of regualr driving. But for racing, they suck ass. Someone once said it was like racing on buttered glass. That's about right. I had them on my Eclipse GSX and spun them through 2nd in an AWD car.



I run the Nitto 555R's on the back of my car right now. I really like them alot, they still spin but you can definately tell the difference between them and street tires. My friends all run the BFG drag radials, they all like them, but they do not build a size that I like. A 245-50-16 is the closest size and it is a bit too tall for me. I run the BFG G-Force TA KDW for street driving. I have not tried the new KDW2's yet but they look nice. Yokohama AVS Sports are almost as nice as the Potenza S-02's but not quite I didn't think. They have just as good Dry traction but the S-02's did better in the wet.



try the Gfrorce kds or yoko A032s.

Nice post. Sounds like me talking. :bigok:



About the A032R, they are Road Race tires and will wear really fast. The Nitto 555R Drg Radials still claim to wear for up to 15,000 miles. I highly doubt that but they do wear pretty descent as long as you do not do burnouts alot. Burnouts are not needed for street tires or drag radials while racing. All it does is lose even more traction. For thses tires, just air them down to around 15-20psi or so and clean them off when you go to the line, just a little spinning to get the rock, dirt, etc.. off of them, then pull up to the line and go. Avoid the Water Box unless you plan on hazing your slicks. If not, then you will lose even more traction. Alot of people do burnouts on there street tires but I love when they smoke them and I just roll up to the line nice and gingerly and they think I don't take them serious. It is sort of a mind game I play with my oppenents. Where I just want the best traction possible but I think it helps mess with there concentration.



My choices.

Potenza S02 PP - if you have alot of extra cash

Yokohama AVS Sport - if you have lots of extra cash

BFG KD - good tires, not too expensive, dry only for you Las Vegas people

BFG KDW - good, tires, not too expensive, dry or wet conditions

BFG KDWS- good tires, not too expensive, dry or wet or snow conditions

Kumho Supra 712 - cheap tires but descent for the money

Michelin Pilots - too much, not worth it

I have never had Toyos so I can't judge them, I hear they are really good though.

Just asking since I am pretty new to the scene, but what effect does a larger tire have on traction the cons and pros. I mean I would really like to have the "Sleeper" effect going so all the better to stay with stock sizes but do I loose any traction by staying on smaller sizes..? Any and all information will be greatly appreciated. Thanks.

By "larger" do you mean wider or taller?

both

They come hand in hand dont they.?? The larger they get the wider and taller they get right..? Correct me if I am wrong..

The tire industry does not use the word larger. A tire can get wider and not taller or taller and not wider. Or you could change them both.



A wider tire will allow for a greater contact patch and help with traction but it will also take a bit more power to get them going. Since they have to spin more tire while it is touching the ground.



A taller tire will effect your gearing(tachomoeter), speedomoter, and Odometer. So it will register slower since the cars is designed for a certain size tire and a certain rolling radius. So a taller tire will make them all run slower than stock since your tires take longer to make a full rotation. A shorter tire is oppposite, everything will run faster than it actually is. It depends on what you are going for. And of course ride height will be altered with shorter or taller tires so your handling will be a little off as well. The best bet is to keep your RR as close to stock as possible.

Ok thanks alot. So when I start making 400 rwhp I should go for a wider tire? For traction purposes correct..?

It will help. A 225 is just not very wide for alot of hp.

umm i do nice healthy burnouts on my drag radials..... i have a few 1.70 60 FT's to show for it too!

Just a side note here: When you are reading the catalog information for a drag tire, they will show the ""OD" or "Outside Diameter." This information is useful when calculating your speed in gears. Relates to what Lane Change calls "rolling radius" (D=2*R) A tire with a greater OD than your stock tire will do the same thing as a taller (numerically lower) rear end. Of course, a smaller OD tire will do the opposite and give you better acceleration with a lower top end. Any change in OD from stock will throw off your speedo.



You'll also notice that slicks are sized like this: 26 x 10.5 x 16, where 26 is the OD in inches, 10.5 the tread width in inches, and 16 the wheel diameter.

Vosko, try a run without a healthy burnout and I bet you run the same time or better. Just avoid the water box and clean your tires off before you line up. If you can smoke them and then race immediately after then it may help a bit, but once street tires or drag radials cool off they tend to lose traction. A real slick will not disapate heat as fast as a street tire.



I agree with 1988RedT2 about the O.D. A rolling radius is the same it measures the total circumfrance of a tire to calculate your rpms, speed, and gearing. Sometimes a standard sizing measurement is not what they claim. I have plenty of friends that run slicks and the 26x10.5x16 are only 8.75 inches wide. Even thought they claim to be 10.5. The same goes for metic sizes. For some reaon, tires from different manufactures with the same tread width are not actually the same width. It is kind of odd.

i have raced on cold tires it makes a large difference. there is a reason pro drag racers do monster burnouts besides the fact that its alot of fun https://www.nopistons.com/forums/pub...#>/biggrin.png

hmmm....i got nt555's not the r's.when i race should i lower my psi, and if so wat 2? woo woo

Air the front up to max press. and lower the back down to around 20psi. You could go a little less, but not much. I usually run my street tires at 20psi rear and 44psi front. Some tires are max press. 35psi. Check your sidewall first to see what you can run.



Scott

hey thanks. itll be tight once i get my whistle muffler.woo woo!!!!

So.. it's not recommended to use ET's on the street?

You can, they are street legal. They just don't provide any wet or snow traction at all. I would also advise going slow around corners. They are really built for drag racing, nothing more. Except that they have grooves in them to be approved for DOT.

they are crap.Thats what I have.I burn out and still spin them when I get on it in 1st ,2nd,somtimes 3rd.This is not dumping the clutch just rolling and flooring.I had the toyo proxes R .They much better and I never let the air down but I may in the next set of tires I get. These do get stickier the hotter you get them until they grease up. (over heat)Street treadwear I believe is an indicater on how soft the rubber compound is too. I believe lower # is faster wear because rubber is that much softer.The higher price tires have longer tread wear due supposendly to advance chemistry .but thats also because you be buying new tires sooner cause of shorter tread life.Gotta make the buck one way or another.

I have the Pirelli P8000's.. does anyone know how these measure up with others?!

P8000's are decent. they are probably better than the kumho 712's overall. they are just a regular tire

ok. I guess I'll be getting somehting better the next time I need some tires..