Welcome to the North American Subaru Impreza Owners Club Monday August 3, 2015
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
NASIOC
Here you can view your subscribed threads, work with private messages and edit your profile and preferences Home Registration is free! Visit the NASIOC Store NASIOC Rules Search Find other members Frequently Asked Questions Calendar Archive NASIOC Upgrade Garage Logout
Go Back   NASIOC > NASIOC Technical > Factory 2.0L Turbo Powertrain (EJ Series Factory 2.0L 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.
* Registered users of the site do not see these ads.
Reply
 
Thread Tools Display Modes
Old 07-29-2004, 08:29 AM   #1
2000wrx
Scooby Specialist
 
Member#: 66659
Join Date: Jul 2004
Location: geronimo66 at work
Vehicle:
2000 L WRX'd

Default V7 vs V8 questions??

I am just wondering which is a "better" platform. I am not fully aware of all the changes between these two motors. I know the twinscroll on the V8.

My question is at what point does the twin scroll lose its advantage when upgrading to higher power levels?? Is there any kind of selection for upgradeing to higher power twinscroll turbos? Please forgive as I am quite green on theses motors.

How about the heads and cams, any differance between them??

FYI my plans are to swap out my swap (usdm wrx) and go to a JDM motor and 6mt. I want solid low 12 high 11 second straight line performance as a ref. My L weights in at 2780lbs with no weight lose as of yet.


Thanks,
* Registered users of the site do not see these ads.
2000wrx is offline   Reply With Quote
Sponsored Links
* Registered users of the site do not see these ads.
Old 07-29-2004, 09:42 AM   #2
Subie2
Scooby Specialist
 
Member#: 14750
Join Date: Jan 2002
Location: Anywhere but here.
Vehicle:
2007 Element SC
Root Beer Metallic

Default

1820F is the PE twinsscroll turbo.. so yes there is twinscroll upgrades.. just not many. There is some minor head differences in the two motors as well. This topic is discussed elsewhere to great lengths.

http://forums.nasioc.com/forums/showthread.php?t=595513

If you look in the conversions forum there is lots of info.

Last edited by Subie2; 07-29-2004 at 09:57 AM.
Subie2 is offline   Reply With Quote
Old 07-29-2004, 10:55 AM   #3
SonicYelloWRX
Scooby Specialist
 
Member#: 36901
Join Date: May 2003
Chapter/Region: South East
Location: Duluth, GA
Vehicle:
2007 RX-8
Brilliant Black

Default

The pe1825 is a twinscroll upgrade the pe1820f is just a normal turbo. The head difference would be all V8 motors have the V7 RA spec C cams while normal V7 motors do not. I'd go with a V8's are a little more difficult to swap in and since I assume you already have your car wired up with the WRX motor a V7 is almost a direct swap save for the AVCS. If I had to do it over I would have gone with a V8 motor.

George
SonicYelloWRX is offline   Reply With Quote
Old 07-29-2004, 11:04 AM   #4
snvin
Scooby Specialist
 
Member#: 50578
Join Date: Dec 2003
Chapter/Region: Tri-State
Location: -= Best Pizza /\ =-
Vehicle:
2014 Fiesta ST
-=meh=-

Default

Quote:
Originally Posted by SonicYelloWRX
The pe1825 is a twinscroll upgrade the pe1820f is just a normal turbo. The head difference would be all V8 motors have the V7 RA spec C cams while normal V7 motors do not. I'd go with a V8's are a little more difficult to swap in and since I assume you already have your car wired up with the WRX motor a V7 is almost a direct swap save for the AVCS. If I had to do it over I would have gone with a V8 motor.

George

Do you say V8s are a little more difficult to swap because of the DBW?
snvin is offline   Reply With Quote
Old 07-29-2004, 03:33 PM   #5
2000wrx
Scooby Specialist
 
Member#: 66659
Join Date: Jul 2004
Location: geronimo66 at work
Vehicle:
2000 L WRX'd

Default

Yea... what makes the V8 harder to swap...
2000wrx is offline   Reply With Quote
Old 07-29-2004, 03:56 PM   #6
ImprezaRSfan!
Scooby Specialist
 
Member#: 13520
Join Date: Dec 2001
Chapter/Region: MAIC
Location: Springfield, VA
Vehicle:
99rs ej207 spec-c
its for sale

Default

jdm v8 is not Drive by wire
ImprezaRSfan! is offline   Reply With Quote
Old 07-30-2004, 07:51 AM   #7
2000wrx
Scooby Specialist
 
Member#: 66659
Join Date: Jul 2004
Location: geronimo66 at work
Vehicle:
2000 L WRX'd

Default

I didn't think it was, so what makes it a harder swap? Also is the twinscroll really worth the extra cost??
2000wrx 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

Similar Threads
Thread Thread Starter Forum Replies Last Post
V7 vs V8 dyno chart mudbug Proven Power Bragging 36 02-11-2010 09:32 PM
V7 forged VS V8 cast? jdmej20 Factory 2.0L Turbo Powertrain (EJ Series Factory 2.0L Turbo) 20 05-30-2005 11:50 PM
V7 Sti Strut vs V8 STI struts -any diffrent? DickWRX Brakes, Steering & Suspension 3 02-08-2005 06:10 PM
JDM V7 vs V8 Suspension Dong9mong Brakes, Steering & Suspension 7 07-08-2004 12:47 PM
JDM V7 vs. V8, AVCS hookup questions dwx Factory 2.0L Turbo Powertrain (EJ Series Factory 2.0L Turbo) 6 10-25-2003 03:26 PM


All times are GMT -4. The time now is 11:23 PM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2015, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2015 Axivo Inc.
Copyright ©1999 - 2015, North American Subaru Impreza Owners Club, Inc.