Welcome to the North American Subaru Impreza Owners Club Monday June 25, 2018
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
NASIOC
Go Back   NASIOC > NASIOC Technical > Built Motor Discussion

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 02-13-2018, 03:15 PM   #151
no694terry
Scooby Specialist
 
Member#: 220816
Join Date: Aug 2009
Location: Pittsburgh PA
Vehicle:
SC Tube Truck
EJ22e 415whp/398wtq

Default

Sorry but i dont see how a returnless system could deliver cooler fuel. Looking at an 08 Impreza 2.5i, the fuel dead ends in steel lines on top of the block, then the 2.5i takes in very little fuel, meanwhile the pump is pumping at 4bar with 90% of it recirculating round and round inside the tank waiting to go to the engine
* Registered users of the site do not see these ads.
no694terry is offline   Reply With Quote
Sponsored Links
* Registered users of the site do not see these ads.
Old 02-13-2018, 04:12 PM   #152
mrsaturn7085
Scooby Specialist
 
Member#: 375462
Join Date: Dec 2013
Chapter/Region: NWIC
Location: Portland, OR
Vehicle:
2006 Impreza WRX STI
WR Blue

Default

Without testing, it's all conjecture. I noted 'theoretically' for this reason. Unfortunately, the downsides of a dead-ended system are too much for me to bother rigging anything up with temperature measurement
mrsaturn7085 is offline   Reply With Quote
Old 02-13-2018, 04:28 PM   #153
no694terry
Scooby Specialist
 
Member#: 220816
Join Date: Aug 2009
Location: Pittsburgh PA
Vehicle:
SC Tube Truck
EJ22e 415whp/398wtq

Default

ya who cares. moving on. Ive just been semi interested in all this since im coming up on running all new fuel lines in the tube chassis. Planning on -6an feed and 5/16" return. Just need to pick a filter
no694terry is offline   Reply With Quote
Old 02-14-2018, 12:02 AM   #154
Homemade WRX
Scooby Guru
 
Member#: 33782
Join Date: Mar 2003
Chapter/Region: MAIC
Location: Mooresville, NC
Vehicle:
96 3MI Racing LLC
search FIRST, then PM!!!

Default

Quote:
Originally Posted by Legacy_H6TT View Post
Haha, yeah I know NASCAR motors aren't low tech; flat plane cranks, EFI, 9000rpm+ redline! And seeing where you're located you have to appreciate my love of the sport #doitfordale
They're still crossplane and NASCAR has been doing their job of dialing them back in the from the 10k RPM peaks they had. They've been reeling the budget aspect of it back in a lot. We had flatplane only on the GT350R-C project. Then the FIA and IMSA side of my job was cool but also lame because of BOP. Great, we can make all of this power and save all this fuel but it'll only be so that we're penalized...great!!

With that being said, I've been focusing on intake manifold a bit too much and haven't touched my surge tank. I need to get back onto things. My bugeye DD is waiting to guinea pig.
Homemade WRX is offline   Reply With Quote
Old 02-23-2018, 03:25 AM   #155
Legacy_H6TT
Scooby Newbie
 
Member#: 137502
Join Date: Jan 2007
Location: Wellington, New Zealand
Vehicle:
1990 Legacy GT-t
Blue over silver

Default

True? I thought NASCAR did use a flat crank... my bad. That GT350 is cool though; not a huge Mustang fan but being able to pick one up for around $50k its certainly a future classic worth holding on to!
Legacy_H6TT is offline   Reply With Quote
Old 03-12-2018, 01:21 PM   #156
no694terry
Scooby Specialist
 
Member#: 220816
Join Date: Aug 2009
Location: Pittsburgh PA
Vehicle:
SC Tube Truck
EJ22e 415whp/398wtq

Default

what yall think about AN fitting restriction. These -6an fittings have 7/32" ID's, my stock 5/16" hose barbs have bigger holes
no694terry is offline   Reply With Quote
Old 03-12-2018, 03:39 PM   #157
mrsaturn7085
Scooby Specialist
 
Member#: 375462
Join Date: Dec 2013
Chapter/Region: NWIC
Location: Portland, OR
Vehicle:
2006 Impreza WRX STI
WR Blue

Default

Quote:
Originally Posted by no694terry View Post
what yall think about AN fitting restriction. These -6an fittings have 7/32" ID's, my stock 5/16" hose barbs have bigger holes
6AN standard fitting (not hose) I.D. is 0.300"
6AN hoses are even larger at 0.340"

7/32" is 0.21875" (!!)

I don't know where you bought your fittings, but I'd be permanently scrapping whatever brand you saw a 7/32" orifice on something labeled 6AN...
mrsaturn7085 is offline   Reply With Quote
Old 03-12-2018, 03:47 PM   #158
no694terry
Scooby Specialist
 
Member#: 220816
Join Date: Aug 2009
Location: Pittsburgh PA
Vehicle:
SC Tube Truck
EJ22e 415whp/398wtq

Default

Quote:
Originally Posted by mrsaturn7085 View Post
6AN standard fitting (not hose) I.D. is 0.300"
6AN hoses are even larger at 0.340"

7/32" is 0.21875" (!!)

I don't know where you bought your fittings, but I'd be permanently scrapping whatever brand you saw a 7/32" orifice on something labeled 6AN...
They're ICT Billet fittings i got from Summit Racing. I measured with a ruler at my desk, but its about 1/32" under a 1/4", the tube that goes inside the hose when assembling.
no694terry 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 04:29 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.