bigger rear wheels? - Page 2 - Miata Turbo Forum - Boost cars, acquire cats.

Welcome to Miataturbo.net   Members
 


General Miata Chat A place to talk about anything Miata

Reply
 
 
 
LinkBack Thread Tools
Old 05-18-2008, 06:56 AM   #21
Junior Member
iTrader: (1)
 
Join Date: Dec 2007
Location: Orlando,Fl
Posts: 402
Total Cats: 0
Default

better pics of wheel just painted them black
Name:  IMG_3990.jpg
Views: 2
Size:  151.4 KB
Name:  IMG_3991.jpg
Views: 2
Size:  184.9 KB
Name:  IMG_3993.jpg
Views: 2
Size:  119.5 KB
mx03tb is offline   Reply With Quote
Old 05-22-2008, 10:32 PM   #22
Senior Member
 
Join Date: Sep 2007
Location: Alamo City, Tejas
Posts: 774
Total Cats: 1
Default

This "wobbly", is it a resonance in the body due to differing diameters or tracking issues due to varying patch width?
l_bader is offline   Reply With Quote
Old 05-22-2008, 11:32 PM   #23
Cpt. Slow
iTrader: (25)
 
curly's Avatar
 
Join Date: Oct 2005
Location: Oregon City, OR
Posts: 12,109
Total Cats: 518
Default

don't think that much in to it.

Quote:
yes dont do it.
Quote:
its a bad idea
Quote:
not to mention it'll ruin your auto-x day when you can't turn anymore.
miata=balanced car

different sizesbalanced car

plus the miata is a "gay" car. and apparently the ASA wheels you are considering are gay as well.

together this overdose of homosexuality will turn you into an ---- splunker
curly is offline   Reply With Quote
Old 05-22-2008, 11:40 PM   #24
Murderator
iTrader: (76)
 
18psi's Avatar
 
Join Date: Apr 2008
Posts: 36,199
Total Cats: 2,584
Default

sounds like you know what you're talking about
18psi is offline   Reply With Quote
Old 05-23-2008, 12:17 AM   #25
Junior Member
iTrader: (2)
 
Join Date: Jan 2008
Location: Chicago
Posts: 219
Total Cats: 0
Default

Am I missing something???? As long as the diameter of the wheels match why would they wobble???? I am not sure if the wobble would be caused by different contact patch to the ground...

You say

miata=balanced car

different sizes doesn't equal balanced car

well then if thats true then why not

Porche=balanced car
S2k=balanced car

then why are their tire sizes different???
the logic doesn't flow, there has to be more to this. I am willing to try the setup and I am pretty sure if done right there should be no wobble...
my 2 cents.
zarish is offline   Reply With Quote
Old 05-23-2008, 12:38 AM   #26
Cpt. Slow
iTrader: (25)
 
curly's Avatar
 
Join Date: Oct 2005
Location: Oregon City, OR
Posts: 12,109
Total Cats: 518
Default

try this for logic

miataporsches2k


too be clear though, if you're just talking about different diameter wheels, same width tires, you should be fine, besides some weird weight differences, which would make the front suspension work differently then the rear. so yeah, don't even do that.
curly is offline   Reply With Quote
Old 05-23-2008, 12:42 AM   #27
Newb
 
Join Date: Nov 2006
Location: Lancaster, PA
Posts: 42
Total Cats: 0
Default

got rice? is offline   Reply With Quote
Old 05-23-2008, 01:09 AM   #28
Junior Member
Thread Starter
 
Join Date: Apr 2008
Location: Sacramento
Posts: 172
Total Cats: 0
Default

Quote:
Originally Posted by samnavy View Post
JT, what is it exactly that you're trying to do?
Do you want the "look" of staggered or do you perceive some performance increase?

You can score 6x8 15" 6UL's and throw some 225 Azenis on it for under $1000 total. 6UL's are also starting to pop up used. When I build my NB here in a year or so, somebody will have to argue pretty hard to talk me out of that plan.
Question on the 15x8 wheel though, will they fit with just rolling fenders?
J.T. is offline   Reply With Quote
Old 05-23-2008, 10:07 AM   #29
Elite Member
iTrader: (2)
 
Newbsauce's Avatar
 
Join Date: Jul 2006
Location: NoVA
Posts: 2,304
Total Cats: 2
Default

There is a whole fitment guide on 949racing.com. If you are talking about the 15x8 +38 or whatever they are. Any less offset and your looking at roll/flares.


Two different sets of wheels on the front/back looks pretty damn retarded IMO. I like the factory NB body kit, and I like the front wheels, but if I saw you on the street I'd just consider you another honda-fanboyish dude with two different sets of wheels.
Newbsauce is offline   Reply With Quote
Old 05-23-2008, 11:13 AM   #30
Junior Member
iTrader: (2)
 
Join Date: Jan 2008
Location: Chicago
Posts: 219
Total Cats: 0
Default

Have sold hundreds of wheels on different cars and fitments. Never heard this kind of bs except from you. Make an argument thats logical. Don't just say **** if you don't know the answer. And I am not talking about different diameter wheels. I am talking about different width wheels and tires. You should keep the rolling diameter the same. Oh by the way take some logic courses. Your logic really sux!

Quote:
Originally Posted by curly View Post
try this for logic

miataporsches2k


too be clear though, if you're just talking about different diameter wheels, same width tires, you should be fine, besides some weird weight differences, which would make the front suspension work differently then the rear. so yeah, don't even do that.
zarish is offline   Reply With Quote
Old 05-23-2008, 12:08 PM   #31
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 72,899
Total Cats: 1,792
Default

When BMW and Mercedes and Porsche run fatter rubber on the rear, it's simply to introduce more understeer, and you happen to get more contact patch to boot. To simplify it as much as possible and for what i understand, the car will rotate on the axis that still has traction. When you oversteer, you rotate around the front tires when they loose traction. Adding more rubber in the back, give you more traction in the rear, and this reduces the tendency to oversteer.

adding thinner, shorter, lower offset in the rear....who knows.
Braineack is offline   Reply With Quote
Old 05-23-2008, 12:50 PM   #32
Elite Member
iTrader: (2)
 
Join Date: Jun 2006
Location: ABQ, NM
Posts: 1,850
Total Cats: -8
Default

Looks like this car either drags, or drifts.

Changing sidewall height affects alot of things, taller sidewalls in the back would be great for a drift car. Look at dirt sprint cars as an example.
BenR is offline   Reply With Quote
Old 05-23-2008, 01:28 PM   #33
Elite Member
iTrader: (46)
 
Stein's Avatar
 
Join Date: Dec 2007
Location: Nebraska
Posts: 4,812
Total Cats: 138
Default

Bigger rear wheels are only OK for going in a straight line. Of course, it does go 8.40 @ 163, so I guess it does the straight line thing pretty well.
Attached Thumbnails
bigger rear wheels?-7188839468628-1993-mazda-miata-drag-car.jpg  
Stein is offline   Reply With Quote
Old 05-23-2008, 01:34 PM   #34
Elite Member
iTrader: (14)
 
Join Date: Mar 2006
Location: Edmonton, AB
Posts: 4,921
Total Cats: 0
Default

I like to rotate my tires front to rear. If there is no compelling reason to go with a staggered setup I don't see why I'd want to loose this ability.

I'd tune my suspension with things like spring rates, swaybars and shocks before I'd do so with tires.
jayc72 is offline   Reply With Quote
Old 05-23-2008, 01:35 PM   #35
Elite Member
iTrader: (2)
 
Join Date: Jun 2006
Location: ABQ, NM
Posts: 1,850
Total Cats: -8
Default

Aren't most drag radials 15"?
BenR is offline   Reply With Quote
Old 05-23-2008, 01:38 PM   #36
Elite Member
iTrader: (46)
 
Stein's Avatar
 
Join Date: Dec 2007
Location: Nebraska
Posts: 4,812
Total Cats: 138
Default

Quote:
Originally Posted by BenR View Post
Aren't most drag radials 15"?
Hell, I don't know, I just wanted to post the pic. I saw the car yesterday browsing ads on racingjunk.com.

It does have a 406 SBC with nitrous.
Stein is offline   Reply With Quote
Old 05-23-2008, 08:02 PM   #37
Senior Member
 
Join Date: Sep 2007
Location: Alamo City, Tejas
Posts: 774
Total Cats: 1
Default

I can see issues with a larger diameter in the rear; you effectively raise the center of gravity and push the weight forward. (With the change in ratio increasing as the differential between heights increases.)

Provided you kept the diameter the same, I would expect the wider tires in rear would provide increased traction and therefore application of power (read: accelaration) within reasonable limits. - No tubbed wheel-wells and 275s. (Too much rubber on the road could lead to reduced accelaration or damaged parts.) Also, with the smaller width to the front I would expect a little more "bite" for cornering.

Keep in mind I am looking at the problem with a moderate change, say 225-235s in the rear and 195s up front. Not something like the drag car running 165s fronts and 315
rears. My target use is mixed between straight-line high speed passes (1+ mile courses) and long distance road racing instead of Auto-X.

(And yes, I know this would lead to increased tire wear because they cannot be rotated. The problem is intensified if you consider directional tires.)

- L
l_bader is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Project Gemini - Turbo Civic on the Cheap Full_Tilt_Boogie Build Threads 59 12-15-2017 09:00 PM
Raleigh: Fiberglass headlight scope, 1.6L ECU, AFM, Hardtop latches, more bigmackloud Miata parts for sale/trade 13 09-22-2017 01:34 PM
Back to Stock Part Out!! Turbo Parts, MS2 Enhanced 01-05, Suspension, and MOAR! StratoBlue1109 Miata parts for sale/trade 16 10-02-2015 10:39 AM
Leaky Wilwoods mx592 Suspension, Brakes, Drivetrain 1 10-01-2015 01:45 AM


Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 10:08 AM.