widened steelie question - Miata Turbo Forum - Boost cars, acquire cats.

Wheels and Tires All things related to Miata Wheels and Tires.
Sponsored by:
Sponsored by:

widened steelie question

Old 05-03-2011, 07:15 PM
  #1  
Newb
Thread Starter
 
Join Date: May 2011
Posts: 28
Total Cats: 0
Default widened steelie question

Ill probably get flamed for this but o well. Im just curious as to if it would be ok to run widened steelies on a stock na without problems. Reason i ask is since there so heavy. Any help would be appreciated thanks
Frigg973 is offline  
Old 05-03-2011, 07:23 PM
  #2  
Moderator
iTrader: (12)
 
sixshooter's Avatar
 
Join Date: Nov 2008
Location: Tampa, Florida
Posts: 17,946
Total Cats: 2,115
Default

The problem will be the weight and how poorly Miatas react to heavy wheels.

Your car will be considerably slower. Your car will be more uncomfortable to drive/ride in. Your car will handle worse in corners.

There are several lightweight choices in steel racing wheels, especially in 13", but 1.8 brakes won't clear the 13s. The 15s exist but are a little heavier than the 13s. They exist because many types of racing don't allow aluminum wheels.

Bottom line is it is your car and you can do whatever you want with it.
sixshooter is offline  
Old 05-03-2011, 07:26 PM
  #3  
Newb
Thread Starter
 
Join Date: May 2011
Posts: 28
Total Cats: 0
Default

oo ok thanks. comfort isnt my main issue it was mostly how much slower it would make the car,being its slow enough and if it would have any issues with diff or anything
Frigg973 is offline  
Old 05-03-2011, 07:30 PM
  #4  
Moderator
iTrader: (12)
 
sixshooter's Avatar
 
Join Date: Nov 2008
Location: Tampa, Florida
Posts: 17,946
Total Cats: 2,115
Default

The rotational weigh of the wheels counts about three times as much against you for accelerating and braking as static weight of the rest of the car does. Any of the rotating mass of the drivetrain, wheels, and brakes will be critical for acceleration, especially in an underpowered car. Heavier is much slower. Lighter is better.
sixshooter is offline  
Old 05-03-2011, 07:38 PM
  #5  
Newb
Thread Starter
 
Join Date: May 2011
Posts: 28
Total Cats: 0
Default

aight thanks. guess that idea is out the window lol
Frigg973 is offline  
Old 05-03-2011, 07:52 PM
  #6  
y8s
2 Props,3 Dildos,& 1 Cat
iTrader: (8)
 
y8s's Avatar
 
Join Date: Jun 2005
Location: Fake Virginia
Posts: 19,128
Total Cats: 480
Default

do it anyway. it's probably 10% of the cost of the equivalent non-steel wheel.
y8s is offline  
Old 05-03-2011, 07:54 PM
  #7  
Newb
Thread Starter
 
Join Date: May 2011
Posts: 28
Total Cats: 0
Default

well im also looking at some panasport c8's
Frigg973 is offline  
Old 05-03-2011, 08:15 PM
  #8  
Elite Member
iTrader: (12)
 
Join Date: Sep 2007
Location: Charlotte, NC
Posts: 6,799
Total Cats: 68
Default

Why widen shitty, soft wheels? Why not buy some Diamond Racing steel wheels...they're cheap and come in wide 15" sizes.
Doppelgänger is offline  
Old 05-04-2011, 12:35 AM
  #9  
Newb
Thread Starter
 
Join Date: May 2011
Posts: 28
Total Cats: 0
Default

thats what i was looking at diamond racing wheels but theyre still heavy
Frigg973 is offline  
Old 05-04-2011, 02:16 AM
  #10  
Elite Member
iTrader: (11)
 
chicksdigmiatas's Avatar
 
Join Date: Apr 2008
Location: Texas, 'Murica
Posts: 2,485
Total Cats: 6
Default

One day I met a guy named trey in a chicken hawk bar, I was never the same. I once asked this question..... Run fanboi..... run!!!!!!!!!!!!!!!!!1111111111111!!!111!!11!!!!!!! !!!!
chicksdigmiatas is offline  
Old 05-04-2011, 08:14 AM
  #11  
Elite Member
iTrader: (12)
 
Join Date: Sep 2007
Location: Charlotte, NC
Posts: 6,799
Total Cats: 68
Default

chicks- "dilhole" has two l's in it.....
Doppelgänger is offline  
Old 05-04-2011, 11:03 AM
  #12  
Want fries with that?
iTrader: (3)
 
Join Date: Oct 2009
Location: Twin Cities, Minnesota
Posts: 2,011
Total Cats: -1
Default

Originally Posted by sixshooter View Post
The rotational weigh of the wheels counts about three times as much against you for accelerating and braking as static weight of the rest of the car does.
Sources on this? Not doubting you, curious about it.
rider384 is offline  
Old 05-04-2011, 03:27 PM
  #13  
Elite Member
iTrader: (11)
 
chicksdigmiatas's Avatar
 
Join Date: Apr 2008
Location: Texas, 'Murica
Posts: 2,485
Total Cats: 6
Default

Originally Posted by Doppelgänger View Post
chicks- "dilhole" has two l's in it.....
Oh, really?
chicksdigmiatas is offline  
Old 05-04-2011, 04:28 PM
  #14  
Moderator
iTrader: (12)
 
sixshooter's Avatar
 
Join Date: Nov 2008
Location: Tampa, Florida
Posts: 17,946
Total Cats: 2,115
Default

Originally Posted by rider384 View Post
Sources on this? Not doubting you, curious about it.
Here's one. You can put info in this spreadsheet on your tires and wheels or look at what is already in there as an example. Concentrate on the changes in results at "Tire + Wheel Edge Weighted" and "Chassis Weight Equivalent" at the bottom right for the four wheel total difference.

http://the-welters.com/racing/rotational.xls

There is some background info here :
http://the-welters.com/racing/rotational.html

I recommend Googling lots of different sources for a better understanding.



Anecdotal:
Cliff_J
Jul13-04, 03:05 PM

Here's just a single example but relevant to your question. On the Speed channel is a show called "Sports Car Revolution" where they have a project Acura RSX. When they went to larger diameter discs that were two pounds lighter and larger diameter wheels with the same overall weight, they lost 12 horsepower. They're using a dynojet which uses the acceleration of heavy drums to measure horsepower. Their source concluded that even though the overall mass of the brakes and wheel/tire combination was less, the distribution at a larger radius accounted for the 7% loss in power.

Chester - if you needed to pry open a crate, would you prefer a 6" crowbar or a 3' crowbar?

Same for flywheels. Think back to some pictures of the really old-school stuff and you'll see some flywheels where its basically spokes supporting a large ring on the outside, all the mass is concentrated at as large a diameter as possible.

For a wheel, one could have a very heavy center section and very light rim, the other a super-light center section and heavier rim. As a flywheel they could work out to be either way. I hope the flywheel metaphor works for you, its pretty simple to think that if it stores energy it must have energy input into it to get it up to speed. And if you're using engine power to spin up the flywheel, that leaves less power to accelerate the car.

Cliff

One of the reasons the weight of a wheel and tire hurt acceleration so much is that it must be accelerated twice, both forward through space and rotationally. It likewise hinders braking.

Last edited by sixshooter; 05-04-2011 at 04:50 PM.
sixshooter is offline  
Old 05-04-2011, 04:49 PM
  #15  
Moderator
iTrader: (12)
 
sixshooter's Avatar
 
Join Date: Nov 2008
Location: Tampa, Florida
Posts: 17,946
Total Cats: 2,115
Default

A little light mathematics exploring the subject with regard to automobiles:

http://hpwizard.com/rotational-inertia.html
sixshooter is offline  
Old 05-05-2011, 08:09 PM
  #16  
Elite Member
iTrader: (8)
 
Join Date: Aug 2007
Location: Bellingham, Wa
Posts: 2,712
Total Cats: 3
Default

Originally Posted by sixshooter View Post
A little light mathematics exploring the subject with regard to automobiles:

http://hpwizard.com/rotational-inertia.html
Bookmarked for future nerding. Good **** right there.
wayne_curr is offline  
Old 05-25-2011, 03:29 PM
  #17  
Newb
 
Join Date: Mar 2011
Posts: 31
Total Cats: 0
Default

Just check out some Bassets or diamond racings. It looks similar to steelies and they're cheap! with nice sizing!
elbeezy is offline  
Old 05-25-2011, 03:33 PM
  #18  
Elite Member
iTrader: (12)
 
Join Date: Sep 2007
Location: Charlotte, NC
Posts: 6,799
Total Cats: 68
Default

For Sale thread from "elbreezy" in 3....2......
Doppelgänger is offline  
Old 05-25-2011, 04:24 PM
  #19  
Newb
 
Join Date: Mar 2011
Posts: 31
Total Cats: 0
Default

Why would that be bad? I have a miata. I also am learning a lot from this site. I was also on topic. Im curious why he would want widened steelies when he can just get bassets/or diamond racing which are lighter and similar looking.
elbeezy is offline  
Old 05-25-2011, 04:41 PM
  #20  
VladiTuned
iTrader: (76)
 
18psi's Avatar
 
Join Date: Apr 2008
Posts: 35,083
Total Cats: 3,115
Default

Originally Posted by elbeezy View Post
Why would that be bad?
because 9 out of 10 outsiders/strangers that hop on here to sell their **** without being part of the community are low life pieces of **** that scammed tons of people on here. We like to buy/sell within the community of honest/helpful forum members and friends and generally have low opinions of n00bs until you prove otherwise. That takes time.
18psi is offline  

Thread Tools
Search this Thread
Quick Reply: widened steelie question


Archive Advertising Cookie Policy Privacy Statement Terms of Service

© 2018 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.