Welcome to the North American Subaru Impreza Owners Club Thursday February 25, 2021
Home Forums Images WikiNASIOC Products Store Modifications Upgrade Garage
Go Back   NASIOC > NASIOC Technical > Factory 2.5L Turbo Powertrain (EJ Series Factory 2.5L Turbo)

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.

* As an Amazon Associate I earn from qualifying purchases. 
* Registered users of the site do not see these ads. 
Thread Tools Display Modes
Prev Previous Post   Next Post Next
Old 10-02-2013, 12:20 PM   #1
Scooby Specialist
Member#: 158888
Join Date: Sep 2007
Chapter/Region: MAIC
Location: Baltimore area
2011 STi EFR 7163!
07 GT30 WRX sold :/

Default Physics Help!! 2.4inch Turbo . Benefit to get a 3" inlet pipe et intake??

Ive read tons of topics before on whether to choose a 3inch inlet or 2.4 on the turbo but what if 2.4 was the only choice and since I need to buy a new inlet, I buy a 3inch inlet (with 2.4 reducer) mated to a 3 inch "big maf" air intake?

I am trying to think of the physics but I am A not an engineer and B rusty on even the basics these days.

Would I be close in assuming that the larger the diameter of Turbo inlet pipe and Intake, the less of a vacuum(meaning less work for compressor)?

I understand that the turbo opening is 2.4"***8960; but if I were to "suck" (I know, science does not suck) air through a 2.4"***8960; washer and then a 2.4"***8960; hose that was 5 feet long, it would take more effort to suck air through the hose than the washer therefore reducing the volume and/or velocity? Which in turn would mean a 3" hose after that 2.4" washer would be more efficient...Right?

Hahaha I hope I dont get too bad.

Obababoy 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

All times are GMT -4. The time now is 04:37 AM.

Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2021, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2021 Axivo Inc.
Copyright ©1999 - 2019, North American Subaru Impreza Owners Club, Inc.

As an Amazon Associate I earn from qualifying purchases.