$35 shipped 160 degree thermostat - Subaru Forester Owners Forum
Subaru Forester Forum
ebay search
Subaru Forester Forum
Go Back   Subaru Forester Owners Forum > Member Classifieds > Bargain Alley
SubaruForester.org is the premier Subaru Forester Forum on the internet. Registered Users do not see the above ads.
User Tag List

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old 06-13-2010, 10:59 PM   #1 (permalink)
Forum Member
 
Join Date: Feb 2010
Posts: 34
Location: maryland
Car Year: 2002
Car Model: wrx
Gallery: 0
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Default $35 shipped 160 degree thermostat

160 degree thermostat from BFM as seen in Ebaymotors.

Subaru Impreza WRX STI Performance parts,BCS,Boost control Solenoids,Thermostats,Port and Polish Services,DIY guides
mrblue is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 06-14-2010, 03:03 AM   #2 (permalink)
Super Moderator
Lifetime Supporting Member
 
crewzer's Avatar
 
Join Date: Apr 2009
Posts: 4,114
Location: Mills River, NC, USA
Car Year: 2012
Car Model: Forester X Prem AWP
Transmission: 5MT
Gallery: 0
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Feedback Score: 1 reviews
Exclamation

These may not be a good idea in a modern engine, as a Subaru's OEM t-stat is set at ~195 F. Installing a 160 F model may result in poor fuel economy, emissions, driveability, and performance.

HTH,
Jim / crewzer
__________________
12 Forester 2.5X FB25 5MT Premium AWP PZEV
09 Forester 2.5X EJ25 5MT Premium AWP PZEV (sold 7/2011)
crewzer is offline   Reply With Quote
Old 06-14-2010, 05:24 PM   #3 (permalink)
Forum Member
 
jstawgn's Avatar
 
Join Date: Aug 2008
Posts: 1,097
Car Year: SG9
Car Model: Forester XT
Transmission: Stick Shift
Gallery: 0
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Feedback Score: 6 reviews
Default

Subaru OEM Thermostat are rated at 170 not 195. I always feel the heater are way too hot even in the middle of winter this might be a good solution for me. This would not make any performance difference. The only performance advantage is to reduce the change of detonation if you tune your engine very aggressively.
jstawgn is offline   Reply With Quote
Old 06-14-2010, 07:31 PM   #4 (permalink)
Forum Member
 
tallazzPilipino's Avatar
 
Join Date: Dec 2006
Posts: 5,325
Location: murda was da colour dat they gave me!
Car Year: 05MY
Car Model: SF6s and a SG6
Transmission: 5MT and a 4EAT
Gallery: 1
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Feedback Score: 16 reviews
Default

yeap - 170* F. the very first thing i ever did to my subaru was install a 160* F crucial racing failsafe thermostat. three years later, i've never had any noticeable issues.
__________________
romidontplaythat! ouiiiii...
- two USDM SF6s
tallazzPilipino is online now   Reply With Quote
Old 06-14-2010, 07:38 PM   #5 (permalink)
The Seventh Sister
Administrator
Lifetime Supporting Member
 
pleiad7's Avatar
 
Join Date: Jan 2006
Posts: 26,977
Location: Sonoma County, CA
Car Year: 2004
Car Model: Forester XT Premium
Transmission: 4EAT
Gallery: 70
Mentioned: 4 Post(s)
Tagged: 0 Thread(s)
Quoted: 165 Post(s)
Feedback Score: 49 reviews
Default

^^Same here, I changed mine to the Crucial t-stat about 3 or 4 years ago after having had an overheating/heatsoak episode in triple digit temps. No problems ever since!
__________________
-Silke
04 FXT PP PSM ~ "Subed"
98 Forester S ~ "Slynki"
pleiad7 is offline   Reply With Quote
Old 06-15-2010, 04:55 AM   #6 (permalink)
Super Moderator
Lifetime Supporting Member
 
crewzer's Avatar
 
Join Date: Apr 2009
Posts: 4,114
Location: Mills River, NC, USA
Car Year: 2012
Car Model: Forester X Prem AWP
Transmission: 5MT
Gallery: 0
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Feedback Score: 1 reviews
Exclamation

My N/A car engine's normal operating temp in the ~185 F - ~205 F range. Being somewhat "old school", this suggests to me that the thermostat spec would be ~195 F (90 C = 194 F).

I wasn't able to find a definitive single-number T-stat temp spec. However, the '07 Forester service manual section on the thermostat (see attached) provides the following info:

Quote:
Starting temperature to open:
Non-turbo model: 80 — 84C (176 — 183F)
Turbo model: 76 — 80C (169 — 176F)

Fully opens:
Non-turbo model: 95C (203F)
Turbo model: 91C (196F)
Frankly, I'm not quite sure how a thermostat temp spec is defined these days ("Start to open"? Between "start to open" and "fully open"?). If the spec is based on "start to open", then it looks to me like the reference '07 non-turbo / turbo t-stat specs are 180 F (82 C) / 172 F (78 C).

If the spec is based on something usefully in-between "start to open" and "fully open", then it looks to me like the reference '07 non-turbo / turbo specs are 194 F (90 C) / 185 F (85 C).

FWIW, I'd prefer this definition, as I'm used to a thermostat setting being a target value. However, I also appreciate that mechanical automotive thermostats can only react to coolant temperature, and don't really control it.

Based on the "start to open" definition above, the 160 may be OK in a turbo motor operated in generally warm-to-hot climates or conditions. However, I'd still caution against putting one into a current non-turbo motor, and using a 160 in a turbo motor in cold conditions may not be beneficial.

Regards,
Jim / crewzer
Attached Files
File Type: pdf MSA5T0721A161855 thermostat.pdf (63.0 KB, 97 views)
__________________
12 Forester 2.5X FB25 5MT Premium AWP PZEV
09 Forester 2.5X EJ25 5MT Premium AWP PZEV (sold 7/2011)

Last edited by crewzer; 06-15-2010 at 05:42 AM.
crewzer is offline   Reply With Quote
Old 06-15-2010, 03:00 PM   #7 (permalink)
adc
Forum Member
Contributing Member
Supporting Member
 
adc's Avatar
 
Join Date: Aug 2007
Posts: 10,996
Location: Elizabethtown, Pa.
Car Year: 2008
Car Model: 2.5X
Gallery: 98
Mentioned: 5 Post(s)
Tagged: 0 Thread(s)
Quoted: 183 Post(s)
Feedback Score: 0 reviews
Default

Quote:
Originally Posted by crewzer View Post
However, I'd still caution against putting one into a current non-turbo motor, and using a 160 in a turbo motor in cold conditions may not be beneficial.

Regards,
Jim / crewzer
I tend to agree on very hot days and higher power levels the engine won't see much difference between the 160 and a higher temp one. Stats are mainly used at lower power conditions to keep emissions and engine efficiencies at optimal values. In other words higher temp is better on low load cooler temp conditions. I suspect engine deposits will be less with a higher temp stat. Turbo..might be an other matter.
__________________
Be careful what you wish for.
adc is online now   Reply With Quote
Old 06-15-2010, 03:17 PM   #8 (permalink)
Super Moderator
 
flstffxe's Avatar
 
Join Date: Dec 2007
Posts: 7,695
Location: Coon Rapids, MN
Car Year: 2008
Car Model: Forester X Premium
Transmission: 5MT
Gallery: 0
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Feedback Score: 1 reviews
Default

The OEM NA T-stats are stamped 78C(172F) on the valve, this is the temp at which the valve will begin to open if you were to say heat it in a pot of water and watch it. Contrary to popular belief they do not "pop" open to a fully open state when this temp is reached. As the temp rises they will slowly open to a fully open state, which should relatively correspond to the fully open temp(203F for the NA).
__________________
His - 08 X Prem 5mt
Hers - 08 X 4EAT
flstffxe is offline   Reply With Quote
Sponsored Links
Advertisement
 
Reply

  Subaru Forester Owners Forum > Member Classifieds > Bargain Alley

Thread Tools Search this Thread
Search this Thread:

Advanced Search
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
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -8. The time now is 08:02 AM.



Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Content Relevant URLs by vBSEO 3.6.0
User Alert System provided by Advanced User Tagging v3.1.0 (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.