This might sound kinda noob, but.... - Miata Turbo Forum - Boost cars, acquire cats.

General Miata Chat A place to talk about anything Miata

This might sound kinda noob, but....

Old 06-13-2007, 01:31 PM
  #1  
Newb
Thread Starter
 
Join Date: May 2007
Location: Alamogordo, NM
Posts: 43
Total Cats: 0
Default This might sound kinda noob, but....

Ok, so I've been on this forum for a little over 2 weeks now and the motor in my Miata has given up the ghost.....permantly. I have come to the decision that I am going to build a new shortblock, and make it better than before using a myriad of products from BelFab.
What I would like to know is this; Can a person with moderate bolt-on installing experience safly build a motor. I have almost every tool available to me in order to do this job, at the exception of any specialty tools that Miata motors require (Air Force base auto hobby shop, just about everything is snap-on. Your tax dollars hard at work!) I've done motor swaps in hondas before, but I've never torn apart the motor myself. I'd lake to learn and I know that the best way to learn is by doing.
So I must know, is engine building as scary as it seems to be, or can it be done with the right tools, the right information, and a good amount of patients by a previously shade tree mechanic?
Piranah is offline  
Old 06-13-2007, 01:41 PM
  #2  
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 75,276
Total Cats: 2,153
Default

yeah, building the short block isn't a big deal. Not much in there. you just want to make sure you have all the tolerances and torque correct.

Start now by finding a good cheap machine shop that can bore it out on the cheap and without delay...
Braineack is online now  
Old 06-13-2007, 07:31 PM
  #3  
Newb
Thread Starter
 
Join Date: May 2007
Location: Alamogordo, NM
Posts: 43
Total Cats: 0
Default

Is there any good place to find the torque specs for the internals?
Piranah is offline  
Old 06-13-2007, 07:48 PM
  #4  
Boost Pope
iTrader: (8)
 
Joe Perez's Avatar
 
Join Date: Sep 2005
Location: Chicago. (The non-murder part.)
Posts: 28,067
Total Cats: 2,491
Default

Originally Posted by Piranah View Post
Is there any good place to find the torque specs for the internals?
The Factory Workshop Manual: http://www.finishlineperformance.com...intenance.html (near bottom of page)
Joe Perez is offline  
Old 06-14-2007, 12:21 AM
  #5  
Senior Member
iTrader: (7)
 
Join Date: Mar 2005
Location: VT
Posts: 939
Total Cats: 0
Default

Originally Posted by Braineack View Post
yeah, building the short block isn't a big deal. Not much in there. you just want to make sure you have all the tolerances and torque correct.

Start now by finding a good cheap machine shop that can bore it out on the cheap and without delay...
When you guys bore it out, do you order oversized pistons? or stock size?

My Mitsibushi friend just hones them out real good and slaps stock sizes back in w/ new rods/ pistons etc..
Jefe is offline  
Old 06-14-2007, 01:18 AM
  #6  
Senior Member
 
Join Date: Dec 2004
Posts: 1,450
Total Cats: -1
Default

Originally Posted by Joe Perez View Post
The Factory Workshop Manual: http://www.finishlineperformance.com...intenance.html (near bottom of page)
Or for free, right here: http://www.miata.net/garage/torque.html
bripab007 is offline  
Old 06-14-2007, 10:00 AM
  #7  
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 75,276
Total Cats: 2,153
Default

Originally Posted by Jefe View Post
When you guys bore it out, do you order oversized pistons? or stock size?

My Mitsibushi friend just hones them out real good and slaps stock sizes back in w/ new rods/ pistons etc..

you can do that. But if you're going to build it, might as well go .020" overbore and get that extra 30cc. OEM style pistons are the same price, as well as Weiscos.
Braineack is online now  
Old 06-14-2007, 06:03 PM
  #8  
Newb
Thread Starter
 
Join Date: May 2007
Location: Alamogordo, NM
Posts: 43
Total Cats: 0
Default

If I overbore .020" over, what size piston would that be? I think that stock is 83.5mm, right? so would that overbore be 84mm?
Piranah is offline  
Old 06-14-2007, 06:12 PM
  #9  
Elite Member
iTrader: (12)
 
Join Date: Aug 2006
Location: Central-ish VA
Posts: 4,413
Total Cats: 18
Default

yes
neogenesis2004 is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
nick470
MEGAsquirt
7
06-16-2017 02:53 PM
JesseTheNoob
DIY Turbo Discussion
15
09-30-2015 03:44 PM
MiataGarage
Engine Performance
5
09-30-2015 12:04 AM
viriiguy
General Miata Chat
5
09-28-2015 08:39 PM
Squiblez
Meet and Greet
1
09-23-2015 02:50 AM


Thread Tools
Search this Thread
Quick Reply: This might sound kinda noob, but....


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.