Welcome to the North American Subaru Impreza Owners Club Monday April 24, 2017
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
NASIOC
Go Back   NASIOC > NASIOC Reviews > Car Part Reviews

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 08-17-2015, 06:34 PM   #1
Splatum420
Scooby Newbie
Member Sales Rating: (5)
 
Member#: 264261
Join Date: Nov 2010
Chapter/Region: SWIC
Location: SoCal and Phoenix, AZ
Vehicle:
2015 STI
Always Changing

Default Cobb TDO5H 20G - 8cm Turbo Review

My name is Adam Hatch and I am the owner of the MAD_STI, a 2015 Subaru STI.



We were presented an opportunity by one of or sponsors, Cobb Tuning to test their new 20G TDO5 Turbo on our 2015 STI. Now that we have been able to put some miles on it we are in a better place to write a review and share our feedback with you guys sitting on the fence and or unaware of it.



Supporting Mods:



Cobb EBCS

Cobb Accessport

Mishimoto TMIC

DeatschWerks Fuel Rails

DeatschWerks DW300C Fuel Pump

DeatschWerks DW1500cc Injectors

Stainless Fuel Lines

Fuel Pressure Regulator

Catless Downpipe

Dual N1 Exhaust



Stock EJ257 STI Block



Tuned by Clark Tuner at Goodspeed Performance in Scottsdale, AZ on a Maha AWD Dyno.



91 Dyno with stock Turbo vs. Cobb’s 20G:



We made 300WHP on 91 with the stock STI turbo. No other changes other than the Cobb 20G Turbo and a new tune and we got 350WHP. Full boost was hit at 3400 (Give or take) and held boost flat to redline. Both the stock and Cobb 20G were at the same boost pressure (19lbs).



Clark Tuner did back to back pulls on 91. 350, 350, and 352WHP.



The final result of the 91 tune was 356WHP at 19lbs of boost.





E85 Tune:



I wanted a conservative tune as we are on a stock block and I did not want to chance blowing a motor with 4K miles on it to have a few extra HP for numbers.



Clark Tuner was able to pull 400WHP out of the Cobb 20G still at 19lbs of boost with room to spare. Very safe and strong tune and has a lot of top end power. Based on Clark’s results, he was comfortable telling me that the Td05 seems to out power similar Td06 models. I know this will turn into a debate, but we are not here to get into that with other brand turbos. This is based off of experience tuning just about every brand turbo on the market.





Review:



With this being a semi daily driver, it performs well, and has held strong. We have put about 2500 miles on it and have not had a single issue. You can feel the power almost instantly and I don’t feel like I am loosing power when reaching redline. It is fun and inexpensive compared to competitive models. I would recommend this to anyone looking for a fun turbo upgrade. You cant go wrong with a turbo backed by Cobb. It included everything needed to install out of the box.



I do not yet have anything negative to say about this turbo except for the clearance with the upgraded TMIC, but I have seen clearance issues with past turbos on my older STI.



Great job Cobb! I will report more information as I continue to push this turbo! Did I mention we have been testing this in Arizona? 110+ degrees outside.
* Registered users of the site do not see these ads.
Splatum420 is offline   Reply With Quote
Sponsored Links
* Registered users of the site do not see these ads.
Old 08-25-2015, 05:24 PM   #2
Santi_VZ7
Scooby Newbie
Member Sales Rating: (2)
 
Member#: 340640
Join Date: Dec 2012
Chapter/Region: TXIC
Vehicle:
2008 WRX
Lightning Red

Default

I'm about to install this on a 2008 WRX with similar mods. I'll add to this once it's done.
Santi_VZ7 is offline   Reply With Quote
Old 01-20-2017, 05:04 PM   #3
bmxhotsauce
Scooby Specialist
Member Sales Rating: (7)
 
Member#: 127099
Join Date: Sep 2006
Chapter/Region: BAIC
Vehicle:
02 IMPERZA WRX
BLACK

Default

Quote:
Originally Posted by Splatum420 View Post
My name is Adam Hatch and I am the owner of the MAD_STI, a 2015 Subaru STI.



We were presented an opportunity by one of or sponsors, Cobb Tuning to test their new 20G TDO5 Turbo on our 2015 STI. Now that we have been able to put some miles on it we are in a better place to write a review and share our feedback with you guys sitting on the fence and or unaware of it.



Supporting Mods:




Cobb EBCS

Cobb Accessport

Mishimoto TMIC

DeatschWerks Fuel Rails

DeatschWerks DW300C Fuel Pump

DeatschWerks DW1500cc Injectors

Stainless Fuel Lines

Fuel Pressure Regulator

Catless Downpipe

Dual N1 Exhaust



Stock EJ257 STI Block



Tuned by Clark Tuner at Goodspeed Performance in Scottsdale, AZ on a Maha AWD Dyno.



91 Dyno with stock Turbo vs. Cobb’s 20G:



We made 300WHP on 91 with the stock STI turbo. No other changes other than the Cobb 20G Turbo and a new tune and we got 350WHP. Full boost was hit at 3400 (Give or take) and held boost flat to redline. Both the stock and Cobb 20G were at the same boost pressure (19lbs).



Clark Tuner did back to back pulls on 91. 350, 350, and 352WHP.



The final result of the 91 tune was 356WHP at 19lbs of boost.





E85 Tune:



I wanted a conservative tune as we are on a stock block and I did not want to chance blowing a motor with 4K miles on it to have a few extra HP for numbers.



Clark Tuner was able to pull 400WHP out of the Cobb 20G still at 19lbs of boost with room to spare. Very safe and strong tune and has a lot of top end power. Based on Clark’s results, he was comfortable telling me that the Td05 seems to out power similar Td06 models. I know this will turn into a debate, but we are not here to get into that with other brand turbos. This is based off of experience tuning just about every brand turbo on the market.





Review:



With this being a semi daily driver, it performs well, and has held strong. We have put about 2500 miles on it and have not had a single issue. You can feel the power almost instantly and I don’t feel like I am loosing power when reaching redline. It is fun and inexpensive compared to competitive models. I would recommend this to anyone looking for a fun turbo upgrade. You cant go wrong with a turbo backed by Cobb. It included everything needed to install out of the box.



I do not yet have anything negative to say about this turbo except for the clearance with the upgraded TMIC, but I have seen clearance issues with past turbos on my older STI.



Great job Cobb! I will report more information as I continue to push this turbo! Did I mention we have been testing this in Arizona? 110+ degrees outside.
how much TQ did you make on E85 with the COBB 20G ? and do you have the dyno graphs? is the spool pretty fast ?
bmxhotsauce is offline   Reply With Quote
Old 01-21-2017, 02:11 PM   #4
skizsrodt
Scooby Newbie
Member Sales Rating: (0)
 
Member#: 389351
Join Date: Apr 2014
Chapter/Region: TXIC
Location: El Paso, TX
Vehicle:
2007 WRX
WRB

Default

I ran this turbo in a 2007 with a built motor (forged pistons, rods, etc), FIC 1000 cc injectors, Tomei headers and up-pipe, Invidia catless downpipe, Perrin FMIC, Walbro 255. Motor built by Goodspeed and tuned by Clark Turner. At roughly 22 psi boost I am seeing 360 at the wheels on 91 pump gas.
skizsrodt is offline   Reply With Quote
Old 01-21-2017, 05:23 PM   #5
bmxhotsauce
Scooby Specialist
Member Sales Rating: (7)
 
Member#: 127099
Join Date: Sep 2006
Chapter/Region: BAIC
Vehicle:
02 IMPERZA WRX
BLACK

Default

Quote:
Originally Posted by skizsrodt View Post
I ran this turbo in a 2007 with a built motor (forged pistons, rods, etc), FIC 1000 cc injectors, Tomei headers and up-pipe, Invidia catless downpipe, Perrin FMIC, Walbro 255. Motor built by Goodspeed and tuned by Clark Turner. At roughly 22 psi boost I am seeing 360 at the wheels on 91 pump gas.


So no E85?? Heard bad review in FIC on E85
bmxhotsauce 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 12:42 AM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2017 Axivo Inc.
Copyright ©1999 - 2017, North American Subaru Impreza Owners Club, Inc.