begi cast manifold w/ external wg - Miata Turbo Forum - Boost cars, acquire cats.

Welcome to Miataturbo.net   Members
 


DIY Turbo Discussion greddy on a 1.8? homebrew kit?

Reply
 
 
 
LinkBack Thread Tools
Old 09-29-2007, 03:01 PM   #1
Newb
Thread Starter
 
Join Date: Nov 2006
Posts: 8
Total Cats: 0
Default begi cast manifold w/ external wg

i've been poking around this website to try and find on what to do with my 1.8 begi cast manifold that has no external wg. am i stuck with using a turbo with an internal wg, or is there anybody that can help me out?
trojan is offline   Reply With Quote
Old 09-29-2007, 03:44 PM   #2
Elite Member
iTrader: (5)
 
m2cupcar's Avatar
 
Join Date: Jan 2005
Location: Atlanta
Posts: 7,236
Total Cats: 288
Default

an external gate flange/port can be welded to it
m2cupcar is offline   Reply With Quote
Old 09-29-2007, 03:45 PM   #3
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 72,847
Total Cats: 1,788
Default

There's nothing "wrong" with internal. Anything you want comes either way.

Corky can modify the manifold for a cost if you really want external
Braineack is offline   Reply With Quote
Old 09-29-2007, 04:20 PM   #4
Newb
Thread Starter
 
Join Date: Nov 2006
Posts: 8
Total Cats: 0
Default

thanks guys, i've been cranking a lot of info in these past weeks from this website and its been nothing but helpful, but i have very little knowledge about turbochargers, and i found out that pretty much all turbos from from factory cars have external wg. i didn't realize that the little gold canister on the turbo is an external wg.
trojan is offline   Reply With Quote
Old 09-29-2007, 06:57 PM   #5
Senior Member
 
Join Date: Dec 2004
Posts: 1,450
Total Cats: -1
Default

I hate to break it to you, but the little gold cannister is not the wastegate, it's the wastegate actuator; basically it's a spring and diaphragm with a pressure port so the boost can open the internal wastegate door at the appropriate pressure differential.

Pretty much 99% of factory turbocharged cars are internally wastegated, from the Mazdaspeed 3 to the Bugatti Veyron.
bripab007 is offline   Reply With Quote
Old 09-30-2007, 06:43 PM   #6
Junior Member
 
Join Date: Jul 2005
Location: Alexandria, VA
Posts: 125
Total Cats: 0
Default

yep, OEM is most likely internal. I'd spend a little more time reading about what the parts of a turbo are.
MiaTurbo is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Miata new person and a what's it worth! Model192 Meet and Greet 16 09-29-2015 09:50 PM
Cast or tubular manifold? Barry94 DIY Turbo Discussion 29 07-22-2008 09:42 AM
Manifold advisers post up. MazDilla DIY Turbo Discussion 25 06-10-2008 10:18 AM
GT2871RS and IWG vs EWG Matt [exz3owner] DIY Turbo Discussion 23 02-12-2008 02:45 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 07:29 AM.