Welcome to the North American Subaru Impreza Owners Club Monday August 20, 2018
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
NASIOC
Go Back   NASIOC > NASIOC Technical > FA Series Factory 2.0L Turbo Powertrain

Welcome to NASIOC - The world's largest online community for Subaru enthusiasts!
Welcome to the NASIOC.com Subaru forum.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, free of charge, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!

If you have any problems with the registration process or your account login, please contact us.
* Registered users of the site do not see these ads. 
Reply
 
Thread Tools Display Modes
Old 08-16-2018, 11:48 AM   #2326
Aherna00
Scooby Newbie
 
Member#: 478711
Join Date: Dec 2017
Location: Albuquerque, NM
Vehicle:
2017 WRX
WRB. E85.

Default

Quote:
Originally Posted by YungBoba View Post
Did a 2-3-4 WOT pull yesterday and registered a -2.81 FBKC. AC was off, DAM remained at 1, no audible noise heard, peak boost (~19 PSI) doesn't seem to indicate a leak and a quick glance at the richest AFR reading (10.30) doesn't seem to indicate I'm running lean either. Unfortunately I wasn't logging at the time, but will try to take one tonight.

2017 WRX
26K miles
TGV deletes
EGR deletes
Grimmspeed EBCS
Grimmspeed TMIC + Charge Pipe
Dyno tuned by Ron on 91

It's a bit surprising to me as I never see more than -1.41 and that's always with the AC on. I'm willing to bet it was either me mashing on the throttle too quickly and not being mindful of how high my manifold temp was (82 degrees out last night and pretty humid), or just transmission noise, as I did hear and feel the tranny move between my hard shifts. Planning to get a Group N mount soon...

How much boost can the stock turbo push out? Assuming e85 and FBO, I've seens cars hold 20psi to redline in this thread and others drop off to 16psi by 5500rpm with the same amount of WGDC from the 3EBCS. What is the turbo actually capable of doing?
* Registered users of the site do not see these ads.
Aherna00 is offline   Reply With Quote
Sponsored Links
* Registered users of the site do not see these ads.
Old 08-17-2018, 07:29 PM   #2327
X49
Scooby Newbie
 
Member#: 386600
Join Date: Apr 2014
Location: Western Canada
Vehicle:
2015 WRX

Default

Quote:
Originally Posted by Aherna00 View Post
How much boost can the stock turbo push out? Assuming e85 and FBO, I've seens cars hold 20psi to redline in this thread and others drop off to 16psi by 5500rpm with the same amount of WGDC from the 3EBCS. What is the turbo actually capable of doing?
20psi at high rpm is about the limit of the stock turbo. At spool up you could probably safely peak at 25psi+ (well, safe for the turbo anyway).

Here's the turbo compressor map. The red dot represents 20psi at 6000rpm, assuming 80% volumetric efficiency. The turbo will be pushing some hot air so you wouldn't benefit from this much boost without ethanol/meth. 150,000+rpm probably isn't great for turbo longevity.

X49 is offline   Reply With Quote
Old 08-17-2018, 10:00 PM   #2328
Gantz
Scooby Newbie
 
Member#: 489697
Join Date: Aug 2018
Default 2018 WRX Base 3rd gear pull

Gantz is offline   Reply With Quote
Reply

Thread Tools
Display Modes

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
Forum Jump

All times are GMT -4. The time now is 12:55 AM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2018 Axivo Inc.
Copyright ©1999 - 2017, North American Subaru Impreza Owners Club, Inc.