Welcome to the North American Subaru Impreza Owners Club Friday March 29, 2024
Home Forums Images WikiNASIOC Products Store Modifications Upgrade Garage
NASIOC
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.







* As an Amazon Associate I earn from qualifying purchases. 
* Registered users of the site do not see these ads. 
Reply
 
Thread Tools Display Modes
Old 12-10-2009, 08:19 PM   #226
Fierysun
Scooby Guru
 
Member#: 82745
Join Date: Mar 2005
Chapter/Region: SCIC
Location: So Cal
Vehicle:
2005 Subaru STI
2003 EJ207 S204 Wagon

Default

Quote:
Originally Posted by mannyOlicious View Post
dude the car is STILL at hb speed and has been sitting there for months... its a wreck... jon and the team must have had it with the car and i dont blame them
Anyone know if this car is back on the road or not?
* Registered users of the site do not see these ads.
Fierysun is offline   Reply With Quote
Sponsored Links
* Registered users of the site do not see these ads.
Old 12-10-2009, 08:59 PM   #227
db2integra
Scooby Newbie
 
Member#: 114765
Join Date: May 2006
Chapter/Region: NESIC
Vehicle:
2005 WRX STI
CGM

Default

Quote:
The cams are the first strange thing you see as each valve has 3 lobes. One central lobe for the low lift and 2 outer ones for high lift, longer duration. The bucket is where the magic happens. There is an inner and outer piston that rubs on both cam lobes all time. When the solenoid allows oil pressure to shoot through the oil gallery, it locks the inner piston to the outer piston/bucket, and bam, new cam profile. I have to say this is probably the coolest part of the engine. Word is this is a co-developed technology from Porsche and Subaru, sure enough the parts are made in Germany.
So the valvetrain works exactly like the one from my 1992 honda? Awesome!
db2integra is offline   Reply With Quote
Old 12-10-2009, 09:10 PM   #228
db2integra
Scooby Newbie
 
Member#: 114765
Join Date: May 2006
Chapter/Region: NESIC
Vehicle:
2005 WRX STI
CGM

Default

Quote:
Originally Posted by SaabTuner View Post
Sodium filling does help keep exhaust valves cool, but I don't think it has a very big effect on what peak EGT the valve can take. I think it's done more to improve the amount of "thermal flux" the valve can take. IE: 4lbs/min airflow @ 1600*F won't generate nearly as much thermal flux as 40lbs/min @ 1600*F.

This is my reasoning: as I understand it, the problem with high EGT's in exhaust valves starts in the same way as it does with turbine blades (with which I'm more familliar), and that is that it stems from oxidation on the surface of the metal. EG: many steel alloys, both stainless and mild, are quite strong @ 1600*F in a vacuum.

Ergo, since I just can't see sodium-filling dramatically lowering the temperature at the outer-most surface of the valve, I can't see it dramatically increasing the EGT the valve can withstand. Saab used to use Sodium-filled valves, but switched to a higher-grade of stainless with a stellite coating, and then to a superalloy. Chrysler friction-welded superalloy heads onto ordinary stainless stems and then moved to full superalloy.

But, that's just my take on it and non-filled valves are indeed cheaper, assuming similar materials. So who knows?



Or, better yet, cylinder pressure x cylinder volume, since larger cylinders are less efficient, that would give you a good measure of how much subjective strain the cylinder is under.



It shouldn't be MUCH more efficient anyway, just a little ... if that. At least, that would be my guess.



Yes, engines with smaller bores tend to have more compact, and efficient, combustion chambers. The trade-off, however, is reduced valve curtain area and increased inertial forces for the relative increase in stroke.



Actually, though it's not really pertinent, my observations via MatWeb have been that most superalloys, especially common grades of Inconel, disperse heat fairly poorly compared to their "ordinary" stainless counterparts (with some notable exceptions). However, because they are so good at resisting heat, they last longer at high EGT's.



No way! I hope you're being sarcastic as I hadn't intended to come across as though I was laughing at you, or implying you were stupid.

I'm just sharing my opinion, and what facts I know, like everyone else, and I try to be light-hearted enough to laugh about it.

-Adrian
Matweb is the bomb! I can't believe how many hours I've spent on that site.
db2integra is offline   Reply With Quote
Old 12-11-2009, 08:35 AM   #229
metoo
Scooby Guru
 
Member#: 4764
Join Date: Mar 2001
Chapter/Region: TXIC
Location: Houston
Vehicle:
2004 STi sold :(
forizzle

Default

I've had my STi since 2003. I want more top end over the GT30R setup I have now, but I will not sacrifice any of the low end that I currently have to get it. I was really hoping the H6 would be a fairly reliable ready-kit option by now. I would rather hit my 04 with an H6 and nice turbo than go with a different car that I can get both low end and high end with, but, it's not looking too good. Seems something with a V8 is in my future (cant afford a GT-R).
metoo is offline   Reply With Quote
Old 12-11-2009, 11:26 PM   #230
burnin4
Scooby Specialist
 
Member#: 59764
Join Date: Apr 2004
Chapter/Region: South East
Vehicle:
10 sec STi
10 sec Z06

Default

C6Z
burnin4 is offline   Reply With Quote
Old 12-12-2009, 02:06 AM   #231
cbourbs
Scooby Specialist
 
Member#: 117749
Join Date: Jun 2006
Default

Quote:
Originally Posted by metoo View Post
I've had my STi since 2003. I want more top end over the GT30R setup I have now, but I will not sacrifice any of the low end that I currently have to get it. I was really hoping the H6 would be a fairly reliable ready-kit option by now. I would rather hit my 04 with an H6 and nice turbo than go with a different car that I can get both low end and high end with, but, it's not looking too good. Seems something with a V8 is in my future (cant afford a GT-R).
maybe you could afford a used noble m400 though. I really find that the gtr stats are really good and it is a very good car....but its missing that little bit of something. I found driving it, it was very boring...i like a car where there is lots of driving skill involved. I like something that you know if you push it to much it can bite your head off.
cbourbs is offline   Reply With Quote
Old 12-12-2009, 03:35 AM   #232
barkley2-6
Scooby Specialist
 
Member#: 221961
Join Date: Aug 2009
Chapter/Region: VIC
Location: Penticton
Default

I want this in my wagon
barkley2-6 is offline   Reply With Quote
Old 12-12-2009, 09:53 AM   #233
Ferraz
Scooby Specialist
 
Member#: 173553
Join Date: Mar 2008
Chapter/Region: International
Location: Sao Paulo
Vehicle:
1996 Civic VTi
Dark blue

Default

Quote:
Originally Posted by cbourbs View Post
I really find that the gtr stats are really good and it is a very good car....but its missing that little bit of something. I found driving it, it was very boring...i like a car where there is lots of driving skill involved. I like something that you know if you push it to much it can bite your head off.
That is exactly how I feel! I'm more of a GT3 than a GT-R guy; more SK8 than PS3, You know?
Ferraz is offline   Reply With Quote
Old 12-14-2009, 10:14 AM   #234
wrxwangjack
Scooby Newbie
 
Member#: 205472
Join Date: Mar 2009
Default

Brog Warner?
wrxwangjack is offline   Reply With Quote
Old 01-04-2010, 05:48 AM   #235
Kosti
Scooby Newbie
 
Member#: 118434
Join Date: Jun 2006
Location: Sydney Australia
Vehicle:
2003 Liberty B4
White

Default

Did anyone get a price for this engine?
Kosti is offline   Reply With Quote
Old 01-04-2010, 12:59 PM   #236
Krang
Scooby Specialist
 
Member#: 134272
Join Date: Dec 2006
Chapter/Region: HIIC
Location: Kahaluu, Hawaii
Vehicle:
2007 Sti, UGM
Rotated EFR 6758

Default

^^ A lot.
Krang is offline   Reply With Quote
Old 01-04-2010, 04:08 PM   #237
BigRigger
Scooby Newbie
 
Member#: 129969
Join Date: Oct 2006
Chapter/Region: W. Canada
Location: Alberta Canada, Oil Counrty
Vehicle:
2005 Sti
Silver/Black

Default

Quote:
Originally Posted by Kosti View Post
Did anyone get a price for this engine?
Do you have any spare kidneys or hearts just lying around?
BigRigger is offline   Reply With Quote
Old 01-06-2010, 02:18 PM   #238
metoo
Scooby Guru
 
Member#: 4764
Join Date: Mar 2001
Chapter/Region: TXIC
Location: Houston
Vehicle:
2004 STi sold :(
forizzle

Default

Quote:
Originally Posted by cbourbs View Post
maybe you could afford a used noble m400 though. I really find that the gtr stats are really good and it is a very good car....but its missing that little bit of something. I found driving it, it was very boring...i like a car where there is lots of driving skill involved. I like something that you know if you push it to much it can bite your head off.
That's sweet for the track, but my car is a daily driver.

I wonder if PDX or anyone will bother with the new 3.6L engine, or will that be just more of the same headaches.
metoo is offline   Reply With Quote
Old 06-11-2010, 10:30 AM   #239
blackhawk07
Scooby Specialist
 
Member#: 246919
Join Date: May 2010
Chapter/Region: MAIC
Location: Charlottesville, VA
Vehicle:
2007 WRX STI
Black

Default

Quote:
Originally Posted by BigRigger View Post
Do you have any spare kidneys or hearts just lying around?
for this engine i do!
blackhawk07 is offline   Reply With Quote
Old 06-11-2010, 11:02 AM   #240
edro*
Scooby Newbie
 
Member#: 177764
Join Date: Apr 2008
Chapter/Region: NESIC
Location: Charlton Ma
Vehicle:
2004 STi
Adriatic Blue

Default

I too would love to do an H6 swap...
edro* is offline   Reply With Quote
Old 06-11-2010, 05:13 PM   #241
PERRINJeff
Scooby Specialist
 
Member#: 74110
Join Date: Nov 2004
Location: PERRIN Performance
Default

Man we get a lot of hits off this thread! Maybe we should this again! I am dying for a new crazy project!
PERRINJeff is offline   Reply With Quote
Old 06-11-2010, 07:15 PM   #242
BigRigger
Scooby Newbie
 
Member#: 129969
Join Date: Oct 2006
Chapter/Region: W. Canada
Location: Alberta Canada, Oil Counrty
Vehicle:
2005 Sti
Silver/Black

Default

Quote:
Originally Posted by PERRINJeff View Post
Man we get a lot of hits off this thread! Maybe we should this again! I am dying for a new crazy project!
3.6 Twin Turbo Build!!

DO IT, DO IT!!
BigRigger is offline   Reply With Quote
Old 06-11-2010, 07:34 PM   #243
2002WRXSTi
Scooby Specialist
 
Member#: 58647
Join Date: Apr 2004
Chapter/Region: Tri-State
Location: Here for now...gone tomorrow
Vehicle:
02 Exedy Carbon
clutches SLIP and SUCK $!

Default

Quote:
Originally Posted by BigRigger View Post
3.6 Twin Turbo Build!!

DO IT, DO IT!!
DITTO!!!
2002WRXSTi is offline   Reply With Quote
Old 06-11-2010, 10:25 PM   #244
BigRigger
Scooby Newbie
 
Member#: 129969
Join Date: Oct 2006
Chapter/Region: W. Canada
Location: Alberta Canada, Oil Counrty
Vehicle:
2005 Sti
Silver/Black

Default

BigRigger is offline   Reply With Quote
Old 06-11-2010, 10:37 PM   #245
piddyplace
Scooby Newbie
 
Member#: 181942
Join Date: Jun 2008
Chapter/Region: South East
Location: Moorseville,NC
Vehicle:
2002 wrx
PSM

Default

DO it I NEED TO SEE THIS DONE!!!!!!
piddyplace is offline   Reply With Quote
Old 06-11-2010, 11:09 PM   #246
colombo140
Scooby Newbie
 
Member#: 97790
Join Date: Oct 2005
Chapter/Region: SWIC
Location: Las Vegas
Vehicle:
2008 STi
Aspen White

Default

Quote:
Originally Posted by PERRINJeff View Post
Man we get a lot of hits off this thread! Maybe we should this again! I am dying for a new crazy project!
If only Subaru would have copied you for the 2011 line up.
colombo140 is offline   Reply With Quote
Old 06-12-2010, 01:55 PM   #247
1cleenwrx
Scooby Specialist
 
Member#: 170542
Join Date: Jan 2008
Chapter/Region: TXIC
Location: Texas
Vehicle:
05 LGT limited
Simply clean

Default

Quote:
Originally Posted by colombo140 View Post
If only Subaru would have copied you for the 2011 line up.
now that would be what i call SPECIAL EDITION STI!!!
1cleenwrx is offline   Reply With Quote
Old 06-12-2010, 04:13 PM   #248
BigRigger
Scooby Newbie
 
Member#: 129969
Join Date: Oct 2006
Chapter/Region: W. Canada
Location: Alberta Canada, Oil Counrty
Vehicle:
2005 Sti
Silver/Black

Default

Quote:
Originally Posted by PERRINJeff View Post
Man we get a lot of hits off this thread! Maybe we should this again! I am dying for a new crazy project!
A 3.6 Twin Turbo build is pretty much the only build left that NOBODY has done in the suby world.

You guys did the EZ30R build
Countless big turbo builds
A few compound charged builds

The 3.6 is the final frontier, that is the voyage of the Cobb Tuning crew, to seek out new con-rods and new piston designs, to boldy go where no builder has gone before.
BigRigger is offline   Reply With Quote
Old 06-13-2010, 12:07 AM   #249
Saintsp
Scooby Newbie
 
Member#: 249258
Join Date: Jun 2010
Default

its realli cool
Saintsp is offline   Reply With Quote
Old 09-07-2010, 10:48 PM   #250
wighti
Scooby Newbie
 
Member#: 15345
Join Date: Feb 2002
Location: New Jersey
Vehicle:
2001 2.5RS GC6 sedan
S.T.M.

Default

Just amazing!
I'd give anything to have that set-up in my GC.
wighti 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
PDXTuning/Perrin H6 Info PDXTuning Proven Power Bragging 575 04-13-2018 04:19 PM
Car chase ends in front of my apt. building with bad results. Erudition Off-Topic 42 12-12-2005 06:38 PM
H6 Turbo EZ30R tear down/build up for BE Legacy PHATsuby Subaru Conversions 2 07-04-2005 03:27 AM
My Build, with dyno results Crash477 Normally Aspirated Powertrain 49 02-28-2005 04:04 PM
I own a WRC rally car! Just completed build up!! wrx_in_efx Texas Impreza Club Forum -- TXIC 10 01-22-2002 07:38 AM

All times are GMT -4. The time now is 05:26 AM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2024 Axivo Inc.
Copyright ©1999 - 2019, North American Subaru Impreza Owners Club, Inc.

As an Amazon Associate I earn from qualifying purchases.

When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission
Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.