What wastegate to use? - 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 04-08-2008, 11:52 PM   #1
Junior Member
Thread Starter
 
Join Date: Feb 2007
Location: Winona, MN
Posts: 198
Total Cats: 0
Default What wastegate to use?

So im running a t25/14b out of a 2nd gen talon. What is the factory psi on the wastegate? I've heard 9psi and read that its 4psi?....
LOOINEY is offline   Reply With Quote
Old 04-09-2008, 10:53 AM   #2
Junior Member
iTrader: (1)
 
Join Date: Sep 2006
Posts: 464
Total Cats: 0
Default

I don't know what the stock actuator makes for boost but I'd imagine 10 minutes on a DSM forum would be enough to find out. If you want to spend some money for a bling bling part we make an actuator that can be set-up to run from 5-25 psi.
PAT! is offline   Reply With Quote
Old 04-09-2008, 11:31 AM   #3
Elite Member
iTrader: (8)
 
Join Date: Sep 2006
Location: Severn, MD
Posts: 1,927
Total Cats: 5
Default

t25 is a Garrett part, 14B is a Mitsu part out of the 1st gen DSM. I think both were 9 psi actually.

Frank
fmowry is offline   Reply With Quote
Old 04-09-2008, 03:18 PM   #4
Junior Member
Thread Starter
 
Join Date: Feb 2007
Location: Winona, MN
Posts: 198
Total Cats: 0
Default

So if I was to run a MBC inline is it not true that you can only turn it down to the wastegate psi and no lower?... I can't 9 psi... it might brake somehting.
LOOINEY is offline   Reply With Quote
Old 04-09-2008, 03:51 PM   #5
Junior Member
iTrader: (1)
 
Join Date: Jun 2007
Location: Plano
Posts: 83
Total Cats: 0
Default

I had a t25 from a eclipse on my crx. The stock wg was set at around 7-8 psi. The pressure varied depending on the exhaust setup.

You can thread the wastegate arm so it is adjustable. I have not done this myself though. Also, 9psi on that tiny turbo is not gonna churn out as much power as a larger turbo.
tilt is offline   Reply With Quote
Old 04-09-2008, 09:38 PM   #6
Senior Member
iTrader: (13)
 
Join Date: Sep 2006
Location: San Diego
Posts: 606
Total Cats: 0
Default

Quote:
Originally Posted by LOOINEY View Post
So if I was to run a MBC inline is it not true that you can only turn it down to the wastegate psi and no lower?... I can't 9 psi... it might brake somehting.
You cannot use a MBC or EBC to achieve lower pressure than the wastegate is set for.
jasonrobo02 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
elesjuan's mediocre 95 Miata adventure (google fiber edition) elesjuan Build Threads 8 02-16-2016 09:36 PM
Miata new person and a what's it worth! Model192 Meet and Greet 16 09-29-2015 09:50 PM
why is my car running like pewp? (tune/datalog) itsMikey MSPNP 3 09-28-2015 07:40 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 10:40 AM.