I'm not good at reading the wheel sizes and matching them up......

Here we go: I'm thinking about getting these wheels
Size 17x7 with a 40mm offset.

I'm trying to figure out what tires i can use with these.
I want 225s all the way around.

I don't think just ANY tire for 17" wheels would fit........or I may be wrong.

I'm thinking about going with some 225/45ZR17 azenis


Modified by TheKingPin at 11:45 AM 10/22/2005

 

225 is a good width for a 7 inch wide rim....

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mgags7 &raquo;</TD></TR><TR><TD CLASS="quote">225 is a good width for a 7 inch wide rim....</TD></TR></TABLE>

yup. if you just want traction for drag racing, you could go w/ 235, but it'll handle like **** w/ all the sidewall flex.

215 will give you good traction for roadracing, and keep the weight down, without losing too much road-holding power. But, it'll look funny on a 7" rim...

 

yeah dont forget that the 17rim + huge tires = huge weight=lost hp=slower prelude=less girls=depression=drugs=overdose=death

it sucks...

 

[QUOTE=mgags7]yeah dont forget that the 17rim + huge tires = huge weight=lost hp=slower prelude=less girls=depression=drugs=overdose=deathQUOTE]


hahahaha....that's funny.....wait....that's depressing....*gunshot*....

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Sober_John &raquo;</TD></TR><TR><TD CLASS="quote">

yup. if you just want traction for drag racing, you could go w/ 235, but it'll handle like **** w/ all the sidewall flex.

215 will give you good traction for roadracing, and keep the weight down, without losing too much road-holding power. But, it'll look funny on a 7" rim...</TD></TR></TABLE>

Good point. I had 225s on the lude before - 225 in the front and 215 in the rear

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mgags7 &raquo;</TD></TR><TR><TD CLASS="quote">yeah dont forget that the 17rim + huge tires = huge weight=lost hp=slower prelude=less girls=depression=drugs=overdose=death

it sucks...</TD></TR></TABLE>

I think you forgot that I weigh 320
I recall you telling me that I need to invest in some carbon fiber shoes or something.......

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by TheKingPin &raquo;</TD></TR><TR><TD CLASS="quote">Good point. I had 225s on the lude before - 225 in the front and 215 in the rear
</TD></TR></TABLE>

that tire setup is nice if you want to keep the steering neutral and minimize the amount of understeer you'll get w/ a FWD car. I've done 225f & 205r on a FWD rally car and it really helped.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by TheKingPin &raquo;</TD></TR><TR><TD CLASS="quote">
I think you forgot that I weigh 320
I recall you telling me that I need to invest in some carbon fiber shoes or something....... </TD></TR></TABLE>

maybe you should fill the tires w/ helium...

 

225/45/17 is way too tall for anything performance related. it kills your gearing and acceleration.

there are no good 225 sizes in 17" for a prelude. the choices are 215/40 or 235/40. nitto used to make a 225/40/17 in the neogen, but they're shitty tires and not worth it. with 7" rims i'd go with 215/40 in good rubber.

i had 235/40/17 on my 17x8 +48 wheels, and they were ******* rad. but on a 7" rim they wouldn't be helping you as much.

 

Thanks for the info - i'll look into some good tires.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by bad-monkey &raquo;</TD></TR><TR><TD CLASS="quote"> 225/45/17 is way too tall for anything performance related. </TD></TR></TABLE>

What? I ran 225/45/17 Advans on my JDM evo when I raced on tarmac...five podium finishes and you can't argue w/ that.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by bad-monkey &raquo;</TD></TR><TR><TD CLASS="quote"> it kills your gearing and acceleration.</TD></TR></TABLE>

one thing has nothing to do with the other.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by bad-monkey &raquo;</TD></TR><TR><TD CLASS="quote">there are no good 225 sizes in 17" for a prelude. </TD></TR></TABLE>

Bridgestone S-03 pole positions...Yokohama Advans...Pirelli P-Zero nero...I could go on if you'd like...

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by bad-monkey &raquo;</TD></TR><TR><TD CLASS="quote">i had 235/40/17 on my 17x8 +48 wheels, and they were ******* rad.</TD></TR></TABLE>

the 1980's called...they want that adjective back...


KingPin, let me know what you decide on. Depending on brand, I might be able to get you a hook-up

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by The_Sober &raquo;</TD></TR><TR><TD CLASS="quote">What? I ran 225/45/17 Advans on my JDM evo when I raced on tarmac...five podium finishes and you can't argue w/ that.

one thing has nothing to do with the other.

Bridgestone S-03 pole positions...Yokohama Advans...Pirelli P-Zero nero...I could go on if you'd like...

the 1980's called...they want that adjective back...


KingPin, let me know what you decide on. Depending on brand, I might be able to get you a hook-up</TD></TR></TABLE>

first of all, you misunderstand me.

225/45/17 is way too tall for anything performance related on a prelude. Since this happens to be the prelude forum, and not an Evo forum...

Second of all, if gearing has nothing to do with acceleration, try putting some 235/65/17's on your prelude and drive around. it should be plainly obvious that final drive ratio and acceleration are most definitely closely linked. If not, why would we even have gears instead of one long gear?

S03's and the like are fine if they came in the right overall diameter, but they don't come in the right OD in a 225 width. see points 1 and 2.



Modified by bad-monkey at 2:29 AM 10/22/2005

 

FYI&gt; reading a tire (in a nut shell)

Example:225/45/17

1) first 3 numbers is the top width of the tire
2) second 2 numbers is the precentage used from the top of the tire to determine sidewall height.
3) last 2 numbers is the rim size.

Treadwear rating: The higher the treadwear number the harder the rubber compound and overall life use of the tire. Lower number means softer compound, handles great, but won't last too long.

Temp.rating: Determines maximum heat tire can handle before possible failure..

Peace

 

bad-monkey--I don't want to get into a war w/ a regular. I'd rather pick on noobs.

but I meant that tire size isn't related to gearing or final drive. that is determined by the transmission gear ratios and the differential. the only thing that'll be screwed up (in theory) with an inappropriate OD is your speedometer.

But I do agree that acceleration and tire size share some commonalities: the larger the OD, the more weight. But with a larger OD, in theory, you'll accelerate faster because the same output from the drive shafts will move a wheel with a larger circumference. Theoretically, you will travel a larger distance with the same amount of rotation from the wheel. Ceteris parabus, you're better off with larger wheels. Like I said, though, that's all theoretical.

While your experience racing preludes is greater than mine (and I know it's not an EVO forum ), I will yield to your argument that 225/45/17 is too tall for a prelude.

That said, you can find 225/40/17s and even 225/35/17s in all those tire brands/models I mentioned...you just have to look kinda hard.

No disrespect intended--peace.

 

sober, monkey is right though....adding bigger tires is like getting a smaller fd....

i would be hesitant to believe that bigger wheels would actually yield better acceleration

1)because the arm of torque is longer from the hub to the wheel...therefore the torque applied in its tangent direction will be of a greater magnitude, and more likely to break traction at low speeds....

2) because at high speeds having to gain more mph per rotation will consume more energy, therefore making it hard to rotate a bigger wheel/tire combo....

BUT

none of this is applicable here, the 225/45/17 is only 78.5 inches in circumference, while the stock is 75.0...thats not a huge enough difference to be very very important for a street car, especially a turbo one(this guy is going b00sted)....so a decision has been made i believe....

the traction gained from 10mm more of tire is minimal, so go with the 215...and in order to maintain your speedo do a 215/40 and you will be good....

for future reference, Tire Size Calculator is a good visualization tool....

-matt

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Bayriders &raquo;</TD></TR><TR><TD CLASS="quote">FYI&gt; reading a tire (in a nut shell)

Example:225/45/17

1) first 3 numbers is the top width of the tire
2) second 2 numbers is the precentage used from the top of the tire to determine sidewall height.
3) last 2 numbers is the rim size.

Treadwear rating: The higher the treadwear number the harder the rubber compound and overall life use of the tire. Lower number means softer compound, handles great, but won't last too long.

Temp.rating: Determines maximum heat tire can handle before possible failure..

Peace

</TD></TR></TABLE>

Ha! NooB thought he was giving some useful information We know this. We're basically talking about what tires would fit well.

Thanks Mgags7, sober, and monkey.........great info. Think my mind is made up.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote &raquo;</TD></TR><TR><TD CLASS="quote">bad-monkey--I don't want to get into a war w/ a regular. I'd rather pick on noobs.
but I meant that tire size isn't related to gearing or final drive. that is determined by the transmission gear ratios and the differential. the only thing that'll be screwed up (in theory) with an inappropriate OD is your speedometer.

But I do agree that acceleration and tire size share some commonalities: the larger the OD, the more weight. But with a larger OD, in theory, you'll accelerate faster because the same output from the drive shafts will move a wheel with a larger circumference. Theoretically, you will travel a larger distance with the same amount of rotation from the wheel. Ceteris parabus, you're better off with larger wheels. Like I said, though, that's all theoretical.

While your experience racing preludes is greater than mine (and I know it's not an EVO forum ), I will yield to your argument that 225/45/17 is too tall for a prelude.

That said, you can find 225/40/17s and even 225/35/17s in all those tire brands/models I mentioned...you just have to look kinda hard.

No disrespect intended--peace.
</TD></TR></TABLE>

Outer diameter DOES effect your gear ratio's. Your speedo is off because your gear ratio is changed throughout the system. Changing your overall tire diameter IS changing the ratio...hence...your speedo reads slower than your actual speed with larger diameter tires. Tires is like changing your final drive ratio...cause your changing all the gears.

Secondly....theoretically your SLOWING the car down with larger diameter tires. Your changing the ratio's for the worse for acceleration...the only thing larger tires would help is top speed...(Actual)

so if you keep the same amount of power....and have to spin a larger moment of inertia with LARGER torque.....your equating to a slower car.

I = MR^2 (Moment of inertia)
Torque = Force X CG.

You probably won't understand this link....but take a look at it. Some things are hard to understand if your not an engineer or physics guy. I have my degree in manufacturing engineering.

http://www.physics.uoguelph.ca....html

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote &raquo;</TD></TR><TR><TD CLASS="quote">sober, monkey is right though....adding bigger tires is like getting a smaller fd....
i would be hesitant to believe that bigger wheels would actually yield better acceleration

1)because the arm of torque is longer from the hub to the wheel...therefore the torque applied in its tangent direction will be of a greater magnitude, and more likely to break traction at low speeds....

2) because at high speeds having to gain more mph per rotation will consume more energy, therefore making it hard to rotate a bigger wheel/tire combo....

BUT

none of this is applicable here, the 225/45/17 is only 78.5 inches in circumference, while the stock is 75.0...thats not a huge enough difference to be very very important for a street car, especially a turbo one(this guy is going b00sted)....so a decision has been made i believe....

the traction gained from 10mm more of tire is minimal, so go with the 215...and in order to maintain your speedo do a 215/40 and you will be good....

for future reference, Tire Size Calculator is a good visualization tool....

-matt
</TD></TR></TABLE>

Larger tires do have a higher torque....but your using the argument that the torque will be greater and will break traction easier. Thats FALSE. It will be HARDER to break traction with a larger wheel...the torque of the wheel is acting AGAINST movement. Your DECREASING drivetrain efficiency.

 

yup, i guess i wasted my time on a idiot who doesn't even know how to read a tire.......

 

Oh yeah shirlock. I don't know how to read a tire. I know how to read your mothers bra size though. We weren't talking about how to read tires. We're talking about good fitments/matchups between tire and wheel sizes. ******* NooB

 

While we're talking about best tire combinations, whats the best thing for overall traction on 15" stock rims? I'm a Yokohama fan so if there's a good combination there I'd like it but I'm open to anything useful.

 

I would personally think that the stock size would be fine - along with a tire with great traction. Honestly, i forget what size tire comes factory.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by preludedude94 &raquo;</TD></TR><TR><TD CLASS="quote">While we're talking about best tire combinations, whats the best thing for overall traction on 15" stock rims? I'm a Yokohama fan so if there's a good combination there I'd like it but I'm open to anything useful. </TD></TR></TABLE>

traction in a straight line or cornering?

15" sizes i'd use are 225/45/15 and 225/50/15, depending on rim width. the 50 is easier to find (not sure if there are a lot of street tires in 225/45) and is the same OD as stock. the 45 is a little shorter and will be peppier.

the BFG TA KD is the tire i was looking at when i had 15's.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by The_Sober &raquo;</TD></TR><TR><TD CLASS="quote">Some nonsense.</TD></TR></TABLE>

Explain to me, how under the rules of Earthly physics, you can accelerate a larger mass, more quickly, with the same applied force?

Empirically (because I've run these sizes) the car accelerates faster with a smaller overall rolling diameter than with the larger overall rolling diameter. Fact.

All the following comments pertain to 17" wheels:

225/45 is a **** size.

You're better off running a 215/45 (if you're just doing street duty) or 235/40 if you're going to track the car. You'll have to make ride height compromises if you use the 235/40 (I've got my ride heights listed at home and can pass them on to you later if you want) v. the 215/45.

You'll also have to run a higher offset for the 235/40 setup (a +47mm at minimum) whereas with the 215/45 you can run as low as a +43 and get a lower ride height without interferance. A +40mm offset is too low for a 17" wheel in my opinion.

Lastly, when comparing tires, look at the section width for various tires you're interested in on the wheel width that the manufacture measures on, you'll see that no two tires, even in the same size, have comprable section widths and this not only has an effect on the overal width, but also on the sidewall height as it's a % of the width.

 

Well, I want something kind've neutral but probably slighty better in cornering if there is such a thing. How good are those new Kumhos that burn red smoke that you see at drifitng events? They probably cost more than I can afford. I have hook-ups where I can get brand new Yokohamas for under $350. IS there any particular Yokohama thats made specially for cornering?

 

bump