after 9k miles of cattin around on the stock mi-shi-tlin's on my ep3, it was time to update tires....for ***** n giggles we experiments and found that 225-50 R16's fit beautifuly, even on my lowered ep3....i'll be going to the track next week to see how drasticly 60ft times improve....anyone else running 225, or wider tires?....i feal as if i could roll the fenders, and possibly run 235's....but that might be a little to insane....:D anyone know of any 16" slipstreams available in 5x114?

 

i've been running 225/45/16 AVS ES100's on my sw388's for probably about 8 or 9 months. i love them. i had 225/50/16's on there for 2 days and thought they were just too big, so i did the 45's. but if you have the right offset wheel you can do 245 series tires.

 

I run 225/45ZR17 AZENIS 615's. I'm looking to put more camber front and rear to help with rubbing in the back. I'm rubbing as I have a +60 setup though.

You should be fine with a 225 though. Not sure why you would even need more than that? If you're looking for traction, there are plenty of sizes that will benefit you in a 225. Don't forget, the more you add, the more unsprung weight you are as well.

-Victor

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by p_ep_si &raquo;</TD></TR><TR><TD CLASS="quote">....i'll be going to the track next week to see how drasticly 60ft times improve....</TD></TR></TABLE>

Curious - why do you think your 60ft will improve?

 

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

Curious - why do you think your 60ft will improve?</TD></TR></TABLE>

michilens to stickier tires = slight improvement

 

I did 225/50/15 Falken Ziex. Progress springs. 38 offset wheels. Not a probem.

Guess this is irrelvant. But they fit no problem, lock to lock. Even under Autocross body rolls.

 

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

michilens to stickier tires = slight improvement</TD></TR></TABLE>

Okay, so the difference is from the compound. I thought for a moment he was expecting an improvement just from the change in tire size.

 

yes i was referring the compound....the wider tire also gives a little better traction as well....i will be comparing them to the OEM Michelin's which are REALLY crappy....in my previous wheel's, i had a set of 18 inch kosei's, with 215 35, Kuhmo MX's....that tire/wheel package's overall diamter was about 1/2 inch shorter than the stock....and the weight difference was phenominal...i cranked out a 9.9, with a 2.4 60ft...and that was before the header....i will hopefully get into mid to low 9's with the bottle....but im a little aprehensive about it, so we'll see.....whats your opinion on...and where would i find a place to get a set of 17inch Work CR Kai's, or 5Zigen GN+, or Advan Racing RG2 in GOLD/Bronze only...

 

I rock some 245's all the way around on my RSX daily. No rubbing lock to lock and I consistantly hit low 2.2's and even hit a high 2.1 60 ft with just those on some 17x8 Enkei RPF-1's.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by p_ep_si &raquo;</TD></TR><TR><TD CLASS="quote"> anyone know of any 16" slipstreams available in 5x114?</TD></TR></TABLE>

Yes, you can get 16x7 5x114 Slipstreams with the Honda centre bore. I have some on my EP3 with offset +45.

Running 225-40-16 all weather tyres at the moment.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by p_ep_si &raquo;</TD></TR><TR><TD CLASS="quote">....the wider tire also gives a little better traction as well....</TD></TR></TABLE>

why would a wider tire give better traction?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Top Ramen &raquo;</TD></TR><TR><TD CLASS="quote">why would a wider tire give better traction?</TD></TR></TABLE>

more rubber on a road. so you're telling me a 295 wont grip better than a 195?

why do drag racers use tires that are as wide as a whale when they could just be using tires that are as wide as bicycle tires?

i understand that a 185 width r compounds will grip 10x better than 215's with generic 500+ treadwear all season tires in the dry.

 

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

more rubber on a road. so you're telling me a 295 wont grip better than a 195?

why do drag racers use tires that are as wide as a whale when they could just be using tires that are as wide as bicycle tires?

i understand that a 185 width r compounds will grip 10x better than 215's with generic 500+ treadwear all season tires in the dry.</TD></TR></TABLE>


They do not put 'more rubber on the road.' Wider tires do not have a bigger contact patch and will NOT grip better than a narrow tire with the same compound and same air pressure. When you go to a wider tire, you change the shape of the contact patch, but not the size. You have the exact same amount of rubber making contact with the road. The contact patch gets larger or smaller based on the pressure. It is one of the fundamental gas laws and a basic principle of physics.

"Pounds per square inch" means just what it says. If we know the loaded weight of a car and the inflation of the tires we can accurately predict the area of the contact patch. Actually, if we know any two of three variables (weight, inflation and the size of the contact patch) we can calculate the third.

You do not understand why drag tires are designed the way the are. I am not trying to be a know-it-all, but this is a common mistake. Drag tires are huge, but they grip for three reasons:

1) low pressure

2) sticky rubber

3) soft sidewalls

A wide drag tire with low pressure has a much bigger contact patch because it has low pressure and because it is soft enough to distort at launch and bunch up. Being wider, in and of itself, does not make for better traction - that is a common fallacy.

Here is a link with some more info"

http://autospeed.drive.com.au/...6&P=1


Modified by Top Ramen at 4:28 PM 9/5/2005

 

Hey Goerge how do you like that size tire? Is it bigger or smaller in overall diameter? I need to upgrade tires and i serioulsy dont know what size to go with.

 

I'm running 225/45/16 Hankook R-S2's, they seem to track road imperfections a lot

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Top Ramen &raquo;</TD></TR><TR><TD CLASS="quote">They do not put 'more rubber on the road.' Wider tires do not have a bigger contact patch and will NOT grip better than a narrow tire with the same compound and same air pressure. When you go to a wider tire, you change the shape of the contact patch, but not the size. You have the exact same amount of rubber making contact with the road. The contact patch gets larger or smaller based on the pressure. It is one of the fundamental gas laws and a basic principle of physics.

"Pounds per square inch" means just what it says. If we know the loaded weight of a car and the inflation of the tires we can accurately predict the area of the contact patch. Actually, if we know any two of three variables (weight, inflation and the size of the contact patch) we can calculate the third.

You do not understand why drag tires are designed the way the are. I am not trying to be a know-it-all, but this is a common mistake. Drag tires are huge, but they grip for three reasons:

1) low pressure

2) sticky rubber

3) soft sidewalls

A wide drag tire with low pressure has a much bigger contact patch because it has low pressure and because it is soft enough to distort at launch and bunch up. Being wider, in and of itself, does not make for better traction - that is a common fallacy.

Here is a link with some more info"

http://autospeed.drive.com.au/...6&P=1


Modified by Top Ramen at 4:28 PM 9/5/2005</TD></TR></TABLE>

i see. well said.

 

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

i see. well said.</TD></TR></TABLE>

Thank you. As I said, I am not in any way trying to be arguementative, I just wanted to share the facts about what is a common misperception.

 

225/50/15 F

205/50/15 R


here

 

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

Hey Goerge how do you like that size tire? Is it bigger or smaller in overall diameter? </TD></TR></TABLE>

It's OK. It's smaller in overall diameter. At an indicated 60 miles per hour, you're really only doing 57.

The tyres are Ziex 512 and at about 35,000 miles they are getting a little noisy.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Top Ramen &raquo;</TD></TR><TR><TD CLASS="quote">They do not put 'more rubber on the road.' Wider tires do not have a bigger contact patch and will NOT grip better than a narrow tire with the same compound and same air pressure. When you go to a wider tire, you change the shape of the contact patch, but not the size. You have the exact same amount of rubber making contact with the road. The contact patch gets larger or smaller based on the pressure. It is one of the fundamental gas laws and a basic principle of physics.

"Pounds per square inch" means just what it says. If we know the loaded weight of a car and the inflation of the tires we can accurately predict the area of the contact patch. Actually, if we know any two of three variables (weight, inflation and the size of the contact patch) we can calculate the third.

You do not understand why drag tires are designed the way the are. I am not trying to be a know-it-all, but this is a common mistake. Drag tires are huge, but they grip for three reasons:

1) low pressure

2) sticky rubber

3) soft sidewalls

A wide drag tire with low pressure has a much bigger contact patch because it has low pressure and because it is soft enough to distort at launch and bunch up. Being wider, in and of itself, does not make for better traction - that is a common fallacy.

Here is a link with some more info"

http://autospeed.drive.com.au/...6&P=1


Modified by Top Ramen at 4:28 PM 9/5/2005</TD></TR></TABLE>

good info. some people on a local site aren't agreeing tho...

 

i have about 35,000 miles on two sets of 225/50-15 falken 512s. it's a daily driver. i used a set of SSR comps i had on the miata. 15x7.5 with a +42 offset. i had to add a 5mm spacer to the rear as the LCA in the rear would make contact with the inside of the rim on compression.

the steering is heavier and needs a little more correction on the road, but the grip is worth it. i don't drag race, though.

george, the ziex do get loud like that as they wear. my second set is getting fairly loud. the first set i lost to a box of drywall screws scattered across the road. i think i will goto the proxes4 after this set. my wife drives it more than i.

 

While the total size of the contact patch will not change with wider tires, the shape of it will and that can affect handling. In additon, low prifile sidewalls will affect the way the contact patch behaves under load and that definitely affects handling. So, for a car designed to corner, the size of the tire and the aspect ratio can be very important, even though they don't 'put more rubbber on the road.'

Unfortunately, bigger wheels can significantly increase rotating mass and many people end up hurting acceleration more than they realize by going to bigger and wider wheels.

My .02.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Top Ramen &raquo;</TD></TR><TR><TD CLASS="quote">While the total size of the contact patch will not change with wider tires.


My .02.</TD></TR></TABLE>


I'm just lost. Say you take two of the same tire. One in a 185/50/15 and another in a 225/50/15. How does the 225 not have more contact patch if the tire is that much wider? The shape of the contact patch only changes? Wouldn't that mean the contact patch is now larger then?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 96 SOHC VTEC &raquo;</TD></TR><TR><TD CLASS="quote">


I'm just lost. Say you take two of the same tire. One in a 185/50/15 and another in a 225/50/15. How does the 225 not have more contact patch if the tire is that much wider? The shape of the contact patch only changes? Wouldn't that mean the contact patch is now larger then?</TD></TR></TABLE>

Dude, read the thread before you jump in.

 

Unfortunately, bigger wheels can significantly increase rotating mass and many people end up hurting acceleration more than they realize by going to bigger and wider wheels.......


....this is true to a point, the overall weight has to be factored...where as a 16x7 OEM wheel and tire from honda weighs 62 lbs(estimate only)....then a 17inch gram lite, with a wider, shorter tire in overall diameter only weighs 42 lbs(estimate only of coarse)....the bigger wider wheel would increase 60ft, as well as 1/8, and 1/4 mile times.....

....as for my intension on running a wider wheel/tire.....the tire upgrade was simply for the fact, the stock tires blow and get no traction....but im running 225's for handling...i can honestly say from testing that i have improved my speeds through a local dogbone freeway access ramp by at least 9 mph...wtih more stability