Alignment yesterday, rear slightly off. - Miata Turbo Forum - Boost cars, acquire cats.

Welcome to Miataturbo.net   Members
 


Suspension, Brakes, Drivetrain discuss the wondrous effects of boost and your miata...

Reply
 
 
 
LinkBack Thread Tools Search this Thread
Old 04-12-2013, 01:24 PM   #1
Junior Member
Thread Starter
iTrader: (1)
 
Join Date: Sep 2009
Location: Skokie, IL
Posts: 213
Total Cats: 4
Default Alignment yesterday, rear slightly off.

Hi everyone,

I brought my miata in to get aligned yesterday and found that they couldn't get the numbers I wanted for the rear, it was off by 0.5 degrees.

I based my ride height and alignment off 949s numbers with slight variation.

Stance coilovers (8k/6k)
3.75" F, 4" R pinch weld to ground
Dunlop star specs 205/50/15

Aimed for:
F: -3 camber, 4.5 caster, 0 toe
R: -2.6 camber, 0.09 toe in per side

Actual:
F: -3 camber, 4.5 caster, 0 toe
R: -3.1 camber, 0.1 toe in per side

Is 0.5 degrees of camber in the rear and 0.01 degree of toe in going to make a drastic difference in the way it was originally intended to handle? Another issue that concerns me is that now I have more rear camber than the front, not sure if that's also an issue or not.

I also noticed that the car is a touch more squirrely at +60mph in a straight line, compared to before.. although I'm not sure if that's just normal due to the drastically increased camber than before plus the slight toe in, plus the fact that it was raining and 43 degrees out yesterday, lol.

Thanks everyone!

Kris

Sent from my ADR6425LVW using Tapatalk 2
itskrees is offline   Reply With Quote
Old 04-12-2013, 01:29 PM   #2
I'm Miserable!
iTrader: (1)
 
Join Date: Jan 2008
Posts: 203
Total Cats: 8
Default

Raise the car up to get rid of the unwanted static camber gain, realign it.
GAMO is offline   Reply With Quote
Old 04-12-2013, 02:07 PM   #3
Junior Member
Thread Starter
iTrader: (1)
 
Join Date: Sep 2009
Location: Skokie, IL
Posts: 213
Total Cats: 4
Default

I figured that's an option, but raising the rears would also increase the rake to more than the quarter inch I wanted. Unless I also raised the fronts, but then wouldn't that throw off the numbers in the front?

I also figured doing any raising to the ride height would defeat what the given alignment specs were meant for, as they were meant for ride heights lower than 12" hub to fender..but I guess if hitting alignment numbers vs ride height numbers were a priority, I'd assume hitting the numbers on point would be greater?
itskrees is offline   Reply With Quote
Old 04-12-2013, 02:52 PM   #4
I'm Miserable!
iTrader: (1)
 
Join Date: Jan 2008
Posts: 203
Total Cats: 8
Default

I can't find it, but there's a graph/calculator somewhere that will tell you how much static camber gain you get in the Miata.

e: http://www.virkki.com/jyri/miata/camber/

Do the hub->fender to sill height math, and you can use this.
GAMO is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
15x10 - 15x11 6UL @ 949 Racing emilio700 Wheels and Tires 151 06-02-2017 03:36 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
Are my coils failing? viriiguy General Miata Chat 5 09-28-2015 08:39 PM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

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 06:07 PM.