CHRA bolts and track use - Miata Turbo Forum - Boost cars, acquire cats.

Welcome to Miataturbo.net   Members
 


Race Prep Miata race-only chat.
Sponsored by:
Sponsored by:

Reply
 
 
 
LinkBack Thread Tools Search this Thread
Old 04-08-2013, 05:09 AM   #1
Junior Member
Thread Starter
iTrader: (-2)
 
Join Date: Nov 2012
Posts: 242
Total Cats: -42
Default CHRA bolts and track use

Standard garrett 2560r turbo.

Anything special need to be done to the Chra bolts to keep them in place? Was thinking about saftey wiring or tack welding them to the plates underneath them if they are know to come loose
Gt2560rMiata is offline   Reply With Quote
Old 04-08-2013, 08:27 AM   #2
mkturbo.com
iTrader: (24)
 
shuiend's Avatar
 
Join Date: May 2006
Location: Charleston SC
Posts: 13,780
Total Cats: 1,106
Default

You should be good with the stock bolts. The reason that the V-Band guys have to safety wire the bolts is because the V-Band housing uses smaller bolts.
shuiend is offline   Reply With Quote
Old 04-08-2013, 10:13 AM   #3
Tour de Franzia
iTrader: (6)
 
hustler's Avatar
 
Join Date: Jun 2006
Location: Republic of Dallas
Posts: 29,114
Total Cats: 351
Default

Quote:
Originally Posted by shuiend View Post
You should be good with the stock bolts. The reason that the V-Band guys have to safety wire the bolts is because the V-Band housing uses smaller bolts.
I thought it was more about vibration than bolt size. I suggest we summon the engineer crew.
hustler is offline   Reply With Quote
Old 04-08-2013, 12:55 PM   #4
mkturbo.com
iTrader: (24)
 
shuiend's Avatar
 
Join Date: May 2006
Location: Charleston SC
Posts: 13,780
Total Cats: 1,106
Default

Quote:
Originally Posted by hustler View Post
I thought it was more about vibration than bolt size. I suggest we summon the engineer crew.
That may be correct. I know I have not seen any standard Garrett CHRA bolts fail on track, but I do know they are about twice the size of the inconel ones on the Tial housing.
shuiend is offline   Reply With Quote
Old 04-09-2013, 11:26 AM   #5
Elite Member
iTrader: (1)
 
Leafy's Avatar
 
Join Date: Jun 2012
Location: NH
Posts: 9,093
Total Cats: 90
Default

The larger bolt can be torqued higher and will provide more normal force on the treads, more normal force = higher friction force = harder to vibrate loose. In layman's terms, not of the industry insider bullshit jargon.
Leafy is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Another Cast Manifold Corky Bell Prefabbed Turbo Kits 18 11-22-2016 10:01 PM
WTB Bellhousing Bolts patsmx5 WTB 1 10-01-2015 10:43 AM
Leaky Wilwoods mx592 Suspension, Brakes, Drivetrain 1 10-01-2015 01:45 AM
WTB HPDE miata - Texas Voltwings Cars for sale/trade 0 09-27-2015 07:40 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 06:58 PM.