Welcome to the North American Subaru Impreza Owners Club Saturday December 16, 2017
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
Go Back   NASIOC > NASIOC General > Proven Power Bragging

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. 
Thread Tools Display Modes
Prev Previous Post   Next Post Next
Old 05-31-2009, 10:06 AM   #11
Scooby Guru
Member#: 36033
Join Date: Apr 2003
Chapter/Region: SCIC
Location: Tuning Lab
CEO PhatBottiTuning
2006 STi GTX3582 + Meth


Originally Posted by sponaugle View Post
Both setups were at equivalent aggressiveness, at least based on the variables available.

I would consider this tune to be 'Aggressive', per the mention of this above. While I could get more power with a bit more boost, I wouldn't consider that a better test. If I truly matched those variables I would expect the results to be the same.
If you could make more power with more boost, then you cant call it an aggressive tune

13 whp at redline is nothing to sneeze at.

Also, if you really look at the data you'll notice that the boost is actually lower with the Cosi manifold and it was also richer and still making more power.

the manifold also "unoptimized" your setup. Before you were peaking at 6200rpm which allowed you to stay in the meat of the powerband by shifting at redline.....where as now you are leaving power on the table unless you're gonna rev to 8000rpm.

I'd really like to see how far that slope carries out. almost looks like the hp peak would be 7000-7200 rpm now.

Seems like this is a mod where you're gonna need a huge turbo that causes the intake manifold to become the restriction, but once you get rid of that restriction you're gonna need a valvetrain to take advantage of your newfound powerband.
Phatron is offline   Reply With Quote

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

Similar Threads
Thread Thread Starter Forum Replies Last Post
Built motor, 35R, stock manifold vs. Cosworth Manifold AdamBOMB_STi Proven Power Bragging 30 01-26-2014 09:12 PM
F/S Cosworth Cylinder Heads NEW DEAL Free Cosworth Manifold Fastyellow Engine/Power/Exhaust 20 04-18-2010 12:37 PM
Finally Finished: TSR-70 Kit, Cosworth Manifold, Build Motor + MORE Mac323 Member's Car Gallery 35 03-12-2010 10:23 PM
Reversed Cosworth manifold and converted to DBC? dubya-R-ex Built Motor Discussion 7 12-14-2009 06:06 PM
2.5i or Cosworth manifold??? OB2 Built Motor Discussion 22 02-04-2009 12:18 PM

All times are GMT -4. The time now is 10:22 AM.

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