Welcome to the North American Subaru Impreza Owners Club Wednesday August 27, 2014
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

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 11-30-2004, 11:58 AM   #1
WrexFactor36
Scooby Specialist
 
Member#: 63700
Join Date: Jun 2004
Chapter/Region: SCIC
Location: Costa Mesa, Ca.
Vehicle:
2002 PSM WRX 4EAT
Protuned Stage 2

Default deadbolt monster p&p td04 with cobb stage 2 program

any of u guys running a cobb stage 2 with a deadbolt monster p&p stock turbo? any problems? any boost problems? was it a diifference u can feel? i have an auto and i wanna stick to the stock turbo, so was thinking this to get the most out of the turbo, any comments please, thanx
* Registered users of the site do not see these ads.
WrexFactor36 is offline   Reply With Quote
Old 11-30-2004, 01:15 PM   #2
wrxracer55
Scooby Specialist
 
Member#: 39435
Join Date: Jul 2003
Location: Parma, Oh
Vehicle:
2002 Impreza WRX
Sedona Red

Default

i am. no problems. feels like it spools faster and has a little more pull up top.
wrxracer55 is offline   Reply With Quote
Old 11-30-2004, 05:00 PM   #3
Unabomber
Big Ron
Moderator
 
Member#: 18062
Join Date: Apr 2002
Chapter/Region: MAIC
Location: I can save you a ton of cash
Vehicle:
on car parts so PM
me b4 j00 buy

Default

Quote:
Originally Posted by wrxracer55
i am. no problems. feels like it spools faster and has a little more pull up top.
Me too! I'd also recommend the additional $50 for the turbo outlet porting, Jerry's most least known about service.
Unabomber is offline   Reply With Quote
Old 11-30-2004, 05:14 PM   #4
WrexFactor36
Scooby Specialist
 
Member#: 63700
Join Date: Jun 2004
Chapter/Region: SCIC
Location: Costa Mesa, Ca.
Vehicle:
2002 PSM WRX 4EAT
Protuned Stage 2

Default

yah im planning to do the full monster port and polish with both ceramic coatings plus compressor housing outlet(internal port). then save for the axle back. with this mod for the stock turbo, do u guys feel that the lag is almost gone or completely gone? did u guys feel a big difference? better low end and spool? thanx guys. im also thinking of putting a tranny cooler. are u guys running a torque converter?
WrexFactor36 is offline   Reply With Quote
Old 11-30-2004, 07:30 PM   #5
Unabomber
Big Ron
Moderator
 
Member#: 18062
Join Date: Apr 2002
Chapter/Region: MAIC
Location: I can save you a ton of cash
Vehicle:
on car parts so PM
me b4 j00 buy

Default

I have headers which add some spool time into the equation, so I'm not the best judge of the "best" spool characteristics. I have been known to gloat that I am always in boost though. I did have the mechanic that does all the work on the crazy HP TurboXS and Element Tuning cars drive mine. He was VERY impressed with the spool characteristics. It was his first time driving a stock Deadbolt turbo'd car and he thought it was a hoot. It's definately a great mod for low end people. I'm a 5MTer, so know advice on the tranny stuff.
Unabomber is offline   Reply With Quote
Old 11-30-2004, 07:42 PM   #6
whtlegacy
Scooby Specialist
 
Member#: 38400
Join Date: Jun 2003
Chapter/Region: MWSOC
Location: Cleveland
Vehicle:
2004 WRX Wagon
DRZ400SM

Default

I've been thinking about this and I always seem to conclude that it just isn't much bang for the buck, but I have no first hand experience. Would you say this upgrade is comparable to an uppipe? or more?
whtlegacy is offline   Reply With Quote
Old 11-30-2004, 07:55 PM   #7
Hagwag02
Scooby Specialist
 
Member#: 63445
Join Date: Jun 2004
Chapter/Region: MWSOC
Location: Lebanon, (SW) Missouri, USA
Vehicle:
2002 WRX Wagon
PSM

Default

If I may invite myself for a brief hijack...

I have wondered about the Deadbolt TD04 Monster, but have almost decided to upgrade to a Deadbolt TD05 Monster. Not so concerned about losing a little early spool if I can get a significant increase in airflow and still have a near-stock, same-make turbo. I am hoping that the P&P on a TD05 will almost achieve similar spool characteristics as on a stock TD04 (did not know about a turbo outlet porting service!?!? Must learn more!).

Thanks for the intrusion.
Hagwag02 is offline   Reply With Quote
Old 11-30-2004, 08:08 PM   #8
Unabomber
Big Ron
Moderator
 
Member#: 18062
Join Date: Apr 2002
Chapter/Region: MAIC
Location: I can save you a ton of cash
Vehicle:
on car parts so PM
me b4 j00 buy

Default

The folks at Cobb told me that an uppipe doesn't so much produce HP as it shifts the power band to the left to "gain" 10ish HP. This is because without the cat there, the turbo spools quicker. That is exactly what a Deadbolt stock turbo does. Moves it to the left, so you get more downlow HP due to quicker boost. The turbo outlet P&P for $50 may net you a little HP throughout the powerband as well, but no one has done a back to back dyno of this little known extra service.
Unabomber is offline   Reply With Quote
Old 11-30-2004, 09:11 PM   #9
WRXVII
Scooby Specialist
 
Member#: 15854
Join Date: Feb 2002
Location: Upstate NY
Vehicle:
2002 WRX
VF34'd...

Default

so no upgraded injector and fuel pump are required for this mod? what's flow rate for the deadbolt TD04 monster turbo?
WRXVII is offline   Reply With Quote
Old 11-30-2004, 09:41 PM   #10
vitaminwrx
Scooby Newbie
 
Member#: 46978
Join Date: Nov 2003
Default

WRXVII- It's important to note that the Monster TD04 will not flow anymore than a regular TD04. In fact, after 2500 RPM, both the monster and regular versions act exactly the same, it's under 2500 RPMs where you notice the difference. If you do a search for "monster TD04" you will find some dyno charts.

If you are looking for more power, then you are looking at the wrong option. If you are looking for earlier spool/more low-end, then it's a great mod (which is why i'm looking into one ) and no, you will not need upgraded fuel pump/ injectors.
vitaminwrx is offline   Reply With Quote
Old 11-30-2004, 10:02 PM   #11
endeavor
Scooby Specialist
 
Member#: 60740
Join Date: Apr 2004
Chapter/Region: South East
Location: Durham, NC
Vehicle:
2004 Impreza WRX
Silver

Default

Quote:
Originally Posted by Unabomber
The folks at Cobb told me that an uppipe doesn't so much produce HP as it shifts the power band to the left to "gain" 10ish HP. This is because without the cat there, the turbo spools quicker. That is exactly what a Deadbolt stock turbo does. Moves it to the left, so you get more downlow HP due to quicker boost. The turbo outlet P&P for $50 may net you a little HP throughout the powerband as well, but no one has done a back to back dyno of this little known extra service.
Does this mean that an uppipe or a turbo P&P would result in a power less near the top end? Or is it more like it extends it to the left?
endeavor is offline   Reply With Quote
Old 11-30-2004, 10:10 PM   #12
LatentWagen
Scooby Guru
 
Member#: 50315
Join Date: Dec 2003
Chapter/Region: Tri-State
Location: New York
Vehicle:
0508 Saabaru & specB
Stage: Maintenance

Default

Quote:
Originally Posted by endeavor
Does this mean that an uppipe or a turbo P&P would result in a power less near the top end? Or is it more like it extends it to the left?
extends
LatentWagen is online now   Reply With Quote
Old 11-30-2004, 10:31 PM   #13
endeavor
Scooby Specialist
 
Member#: 60740
Join Date: Apr 2004
Chapter/Region: South East
Location: Durham, NC
Vehicle:
2004 Impreza WRX
Silver

Default

Hehe.. that's what I've always read, but the word 'shift' kinda confused me
endeavor is offline   Reply With Quote
Old 11-30-2004, 11:26 PM   #14
garie
Scooby Specialist
 
Member#: 26607
Join Date: Oct 2002
Location: socal
Vehicle:
2002 wrx wagon

Default

i want to eventually do this too, because i dont want to make crazy power but just to maximize the current setup(cubb stage 2 w/ headers). would getting a turbo inlet make sense with the p&p stock turbo?

-gary
garie is offline   Reply With Quote
Old 12-01-2004, 10:37 AM   #15
ronf
Scooby Specialist
 
Member#: 51034
Join Date: Dec 2003
Location: 49 north
Vehicle:
03 WRX, 02Forester
PSM

Default Td05 16g

Quote:
Originally Posted by Hagwag02

I have wondered about the Deadbolt TD04 Monster, but have almost decided to upgrade to a Deadbolt TD05 Monster. Not so concerned about losing a little early spool if I can get a significant increase in airflow and still have a near-stock, same-make turbo. I am hoping that the P&P on a TD05 will almost achieve similar spool characteristics as on a stock TD04 (did not know about a turbo outlet porting service!?!? Must learn more!).

Thanks for the intrusion.
TD05 16G is the stock turbo for early version turbo imprezas !!
ronf is offline   Reply With Quote
Old 12-01-2004, 10:39 AM   #16
Unabomber
Big Ron
Moderator
 
Member#: 18062
Join Date: Apr 2002
Chapter/Region: MAIC
Location: I can save you a ton of cash
Vehicle:
on car parts so PM
me b4 j00 buy

Default

Quote:
Originally Posted by garie
i want to eventually do this too, because i dont want to make crazy power but just to maximize the current setup(cubb stage 2 w/ headers). would getting a turbo inlet make sense with the p&p stock turbo?

-gary
It would. I think you should buy two and send me one. Christmas is just around the corner you know.
Unabomber is offline   Reply With Quote
Old 12-01-2004, 10:53 AM   #17
snvin
Scooby Specialist
 
Member#: 50578
Join Date: Dec 2003
Chapter/Region: Tri-State
Location: -= /\ is awesome.=-
Vehicle:
2009 2.5i. Bleh
-=Meh=-

Default

You guys are really maxing out Cobb Stage 2. I think I know the answer to this already <cough>no<cough>, but I'll just check: Has anybody put a Cobb Stage 2 with headers &/or headers + Monster TD04 on a dyno?
snvin is offline   Reply With Quote
Old 12-07-2004, 02:31 AM   #18
garie
Scooby Specialist
 
Member#: 26607
Join Date: Oct 2002
Location: socal
Vehicle:
2002 wrx wagon

Default

Quote:
Originally Posted by snvin
You guys are really maxing out Cobb Stage 2. I think I know the answer to this already <cough>no<cough>, but I'll just check: Has anybody put a Cobb Stage 2 with headers &/or headers + Monster TD04 on a dyno?

nope..hehe i havent, but i plan to do so after i finish up with a cpl of mods such as the inlet, port/polish throttle body(try to do it myself....might as well) and maf hose.

I prob wont port and polish the stock turbo until later on down the road....gives me some time to think whether or not i want to stick with the stock turbo.

i'll post results for sure if and when it happens.

-gary

oh yah unabomber....i'll be sure to include u on my christmas shopping list.
garie is offline   Reply With Quote
Old 12-07-2004, 09:37 AM   #19
Unabomber
Big Ron
Moderator
 
Member#: 18062
Join Date: Apr 2002
Chapter/Region: MAIC
Location: I can save you a ton of cash
Vehicle:
on car parts so PM
me b4 j00 buy

Default

Awwww Gary...... :hugs: I'll even be in your area in early March to save you shipping costs. Big Ron invades San Diego for 4 months of school.
Unabomber is offline   Reply With Quote
Old 12-07-2004, 01:27 PM   #20
omahasubaru
Scooby Guru
 
Member#: 1594
Join Date: Jun 2000
Chapter/Region: MWSOC
Location: Gretna, NE
Vehicle:
1995 WRX
2002 Legacy

Default

Quote:
Originally Posted by garie
i want to eventually do this too, because i dont want to make crazy power but just to maximize the current setup(cubb stage 2 w/ headers). would getting a turbo inlet make sense with the p&p stock turbo?

-gary
The inlet hose makes quite a difference in response. For me it was more gain by itself that I/C hoses were by themselves (let me know if you need me to clarify).

Still porting the turbo isn't a bad idea. There is a local guy here who does porting and has reworked a VF30 for a Cobb Stage 2.5 guy and it made quite the difference in response. He's also ported a TD04 for another, but since that owner put in a ECUTek at the same time, it's hard to tell where the gains are really coming from (probablly tuning).

I'm debating having him rework the hot side of my turbo, but the possiblity that I may run my car in STX in 2006 or 2007 again makes me hesitant. I'm running an RS in STS for 2005, so I may just go ahead and do it.

Thankfully there is a cermaic coating place not too far away so I'll coat it while I'm there too.

I'm glad to see other Cobb Stage II guys like myself reworking their TD04's. I don't have much left that can be done with in the guidelines and I'm not wasting my money on a header, so this looks like the next logical option.
omahasubaru is offline   Reply With Quote
Old 12-07-2004, 01:40 PM   #21
ydant
Scooby Guru
 
Member#: 43447
Join Date: Sep 2003
Chapter/Region: MAIC
Location: Herndon, VA
Vehicle:
2009 STI
The Good Grey

Default

I got my turbo rebuilt + P&Ped + ceramic coated (both sides) not too long ago. I did not go for the outlet porting. Unfortunately, because of the rebuild (turbo & motor) I had to go through a break-in period, so I didn't get any immediate idea of the difference.

Impression now is that it spools up more quickly and it's a lot louder. *seems* to pull a little better through the topend as well.

The difference in engine bay temps is AMAZING, though. Used to be too hot to even get within 6 inches of the turbo after a hard run (no heatshield). I can now hover my hand < 1/2" over the turbo for a few seconds. I am a big fan of the ceramic coat - have my uppipe coated and plan on wrapping the downpipe any day now.

Car is almost stage2, except for the engine reflash.
ydant is offline   Reply With Quote
Old 12-07-2004, 03:18 PM   #22
WrexFactor36
Scooby Specialist
 
Member#: 63700
Join Date: Jun 2004
Chapter/Region: SCIC
Location: Costa Mesa, Ca.
Vehicle:
2002 PSM WRX 4EAT
Protuned Stage 2

Talking

thanx for all the ideas and experiences guys, keep it coming
WrexFactor36 is offline   Reply With Quote
Old 12-07-2004, 05:12 PM   #23
snvin
Scooby Specialist
 
Member#: 50578
Join Date: Dec 2003
Chapter/Region: Tri-State
Location: -= /\ is awesome.=-
Vehicle:
2009 2.5i. Bleh
-=Meh=-

Default

Quote:
Originally Posted by garie
nope..hehe i havent, but i plan to do so after i finish up with a cpl of mods such as the inlet, port/polish throttle body(try to do it myself....might as well) and maf hose.
Yeah - if you could post results, that would be
snvin is offline   Reply With Quote
Old 12-07-2004, 05:32 PM   #24
REDrum
Scooby Specialist
 
Member#: 61536
Join Date: May 2004
Chapter/Region: NESIC
Location: Peoples Republik of Cambridge
Vehicle:
WRX' 04Road02gravel
www.ToltecRally.com

Default

Tagged...
REDrum is offline   Reply With Quote
Old 12-08-2004, 11:55 AM   #25
WrexFactor36
Scooby Specialist
 
Member#: 63700
Join Date: Jun 2004
Chapter/Region: SCIC
Location: Costa Mesa, Ca.
Vehicle:
2002 PSM WRX 4EAT
Protuned Stage 2

Default

any bad experiences with this combo? did u guys wrap ur turbo with heat wrap? or just ceramic coated it? imma do the p&p, ceramic coating, the porting of the compressor housing, then maybe wrap the turbine housing also, i think thats pretty much everything right? anyone got any boost spiking after doing this or any other problems?
WrexFactor36 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
Anyone ran 1/4 mile with Cobb stage 2 and stage 2 HWG map? txl146 Engine Management & Tuning 2 05-15-2005 08:08 AM
Deadbolt monster td04 with Cobb stage 2? 31105015 Factory 2.0L Turbo Powertrain 1 11-09-2003 07:59 PM
T/C required for Auto with Cobb Stage 2? twotacosfor99cents Transmission (AT/MT) & Driveline 4 09-19-2003 01:10 AM
Whats the Redline with Cobb stage 2 ECU 03mbpREX Engine Management & Tuning 1 08-11-2003 07:29 PM
For those 99-01 RS owners with Cobb stage 2 or 3, will CEL come up? V6 Normally Aspirated Powertrain 2 05-03-2002 01:53 PM


All times are GMT -4. The time now is 10:32 PM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2014 Axivo Inc.
Copyright ©1999 - 2014, North American Subaru Impreza Owners Club, Inc.