Check my contact pattern - 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 04-06-2013, 07:55 PM   #1
Senior Member
Thread Starter
iTrader: (1)
 
Join Date: Mar 2008
Location: Cromwell CT
Posts: 1,109
Total Cats: 48
Default Check my contact pattern

I started the assembly of my rear today, pinion preload is set to 12 in-lbs rotational torque using Weir performance solid pinion spacer kit. Backlash is set to around .0035"

I checked my contact pattern as i changed to a 3.636 R+P, i reused my distance spacer to see where i stand for pinion depth, this is what i got

DRIVE SIDE




COAST SIDE
Attached Thumbnails
Check my contact pattern-img_0221.jpg   Check my contact pattern-img_0222.jpg   Check my contact pattern-img_0222-1_zps91ba064b.jpg   Check my contact pattern-img_0221_zps22494f96.jpg   Check my contact pattern-img_0220_zpsc5f5b8bd.jpg  

ctdrftna is offline   Reply With Quote
Old 04-06-2013, 09:18 PM   #2
Cpt. Slow
iTrader: (25)
 
curly's Avatar
 
Join Date: Oct 2005
Location: Oregon City, OR
Posts: 12,110
Total Cats: 518
Default

Looks great. There's a lot of maths involved in finding the pitch circle, which is where the gears touch. But it's roughly 1/2-2/3rds down the tooth. So that looks good. Follow the writeup on m.net for setting the bearing preload and backlash and you'll be fine.
curly is online now   Reply With Quote
Old 04-06-2013, 09:30 PM   #3
Junior Member
iTrader: (3)
 
Join Date: Jun 2011
Location: Charlotte, NC
Posts: 277
Total Cats: 24
Default

RussellT94 is offline   Reply With Quote
Old 04-06-2013, 09:38 PM   #4
Cpt. Slow
iTrader: (25)
 
curly's Avatar
 
Join Date: Oct 2005
Location: Oregon City, OR
Posts: 12,110
Total Cats: 518
Default

Nice link, his contact looks "ideal" to me then.
curly is online now   Reply With Quote
Old 04-07-2013, 08:06 AM   #5
Senior Member
Thread Starter
iTrader: (1)
 
Join Date: Mar 2008
Location: Cromwell CT
Posts: 1,109
Total Cats: 48
Default

awsome, your the third to confirm it looks good. I cant believe i didnt have to change the pinion spacer, i thought for sure i would be doing this multiple times to get the pinion depth set right


if anything it looks between performance and ideal. They call it performance because when you load the teeth hard they deflect, So you set the it so when they deflect they make better contact.

Last edited by ctdrftna; 04-07-2013 at 08:28 AM.
ctdrftna 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
15x10 - 15x11 6UL @ 949 Racing emilio700 Wheels and Tires 151 06-02-2017 03:36 PM
Another Cast Manifold Corky Bell Prefabbed Turbo Kits 18 11-22-2016 10:01 PM
Need help - Stock Balancer and Fastforward overlay pulleys Frank_and_Beans Supercharger Discussion 13 09-12-2016 09:17 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 01:47 PM.