Mike "Wuzzy121". Rest in peace, brother

Go Back   Tacoma World Forums > Tacoma Discussion > 2nd Gen. Tacomas

Notices

Need a Detailed Explanation of How the TRD radiator cap effects the cooling system

Reply
 
Thread Tools Search this Thread
Old 07-05-2012, 12:16 AM   #1
Senior Member
kyleTRDtaco12 is one of the sharper tools in the shedkyleTRDtaco12 is one of the sharper tools in the shedkyleTRDtaco12 is one of the sharper tools in the shedkyleTRDtaco12 is one of the sharper tools in the shedkyleTRDtaco12 is one of the sharper tools in the shedkyleTRDtaco12 is one of the sharper tools in the shedkyleTRDtaco12 is one of the sharper tools in the shedkyleTRDtaco12 is one of the sharper tools in the shedkyleTRDtaco12 is one of the sharper tools in the shedkyleTRDtaco12 is one of the sharper tools in the shedkyleTRDtaco12 is one of the sharper tools in the shed
 
kyleTRDtaco12's Avatar
Name: Kyle
Joined: Jul 2012, #81736
Location: New Jersey
Age: 23
Gender: Dude
Posts: 931
kyleTRDtaco12's Tacoma Gallery
Need a Detailed Explanation of How the TRD radiator cap effects the cooling system

would it be possible for anyone to please explain why installing a higher pressure radiator cap over the stock, such as the TRD radiator cap P/N: PTR04-00000-03 that id like to purchase soon, helps with the engine cooling system performance and just how it actually operates in general?? and if installing it will have any adverse effects on any of the engines parts or components?? thank you so much, this has been a puzzling question ive been asking myself for quite some time now and i just can't seem to fully grasp the science, knowledge and thinking behind it and put two and two together, any info is appreciated, thank you
  Reply With Quote
Old 07-05-2012, 12:24 AM   #2
Superior Member
707tothe907 is one of the sharper tools in the shed707tothe907 is one of the sharper tools in the shed707tothe907 is one of the sharper tools in the shed707tothe907 is one of the sharper tools in the shed707tothe907 is one of the sharper tools in the shed707tothe907 is one of the sharper tools in the shed707tothe907 is one of the sharper tools in the shed707tothe907 is one of the sharper tools in the shed707tothe907 is one of the sharper tools in the shed707tothe907 is one of the sharper tools in the shed707tothe907 is one of the sharper tools in the shed
 
707tothe907's Avatar
Name: Jake
Joined: Oct 2010, #45372
Location: Chico NorCal
Gender: Male
Posts: 2,736
707tothe907's Tacoma Gallery
Serious...? Isn't it just for looks...
  Reply With Quote
Old 07-05-2012, 12:27 AM   #5
Senior Member
JeremyGrey is one of the sharper tools in the shedJeremyGrey is one of the sharper tools in the shedJeremyGrey is one of the sharper tools in the shedJeremyGrey is one of the sharper tools in the shedJeremyGrey is one of the sharper tools in the shedJeremyGrey is one of the sharper tools in the shedJeremyGrey is one of the sharper tools in the shedJeremyGrey is one of the sharper tools in the shedJeremyGrey is one of the sharper tools in the shedJeremyGrey is one of the sharper tools in the shedJeremyGrey is one of the sharper tools in the shed
 
JeremyGrey's Avatar
Firefighter:
Joined: Mar 2012, #74839
Location: Ahwatukee, AZ
Gender: Male
Posts: 253
JeremyGrey's Tacoma Gallery
The TRD radiator cap is USELESS without the TRD shifter knob........

  Reply With Quote
Old 07-05-2012, 12:29 AM   #6
Senior Member
dman597 is one of the sharper tools in the sheddman597 is one of the sharper tools in the sheddman597 is one of the sharper tools in the sheddman597 is one of the sharper tools in the sheddman597 is one of the sharper tools in the sheddman597 is one of the sharper tools in the sheddman597 is one of the sharper tools in the sheddman597 is one of the sharper tools in the sheddman597 is one of the sharper tools in the sheddman597 is one of the sharper tools in the sheddman597 is one of the sharper tools in the shed
 
dman597's Avatar
Name: Doug
Joined: Jun 2009, #19105
Location: maryland
Gender: Male
Posts: 1,089
dman597's Tacoma Gallery
It's got high performance muffler bearings that creates a smooth operating left handed smoke shifter. Lol
  Reply With Quote
Old 07-05-2012, 12:34 AM   #7
Senior Member
YoaterBoater has a brilliant futureYoaterBoater has a brilliant futureYoaterBoater has a brilliant futureYoaterBoater has a brilliant futureYoaterBoater has a brilliant futureYoaterBoater has a brilliant futureYoaterBoater has a brilliant futureYoaterBoater has a brilliant futureYoaterBoater has a brilliant futureYoaterBoater has a brilliant futureYoaterBoater has a brilliant future
 
YoaterBoater's Avatar
Name: Jason
Joined: Sep 2011, #63416
Location: Mississippi
Gender: Male
Posts: 238
YoaterBoater's Tacoma Gallery
It reduces friction heat on your tires, gives you the fuel economy of a Volkswagon diesel, and lowers your insurance.
  Reply With Quote
Old 07-05-2012, 01:21 AM   #8
Senior Member
kyleTRDtaco12 is one of the sharper tools in the shedkyleTRDtaco12 is one of the sharper tools in the shedkyleTRDtaco12 is one of the sharper tools in the shedkyleTRDtaco12 is one of the sharper tools in the shedkyleTRDtaco12 is one of the sharper tools in the shedkyleTRDtaco12 is one of the sharper tools in the shedkyleTRDtaco12 is one of the sharper tools in the shedkyleTRDtaco12 is one of the sharper tools in the shedkyleTRDtaco12 is one of the sharper tools in the shedkyleTRDtaco12 is one of the sharper tools in the shedkyleTRDtaco12 is one of the sharper tools in the shed
 
kyleTRDtaco12's Avatar
Name: Kyle
Joined: Jul 2012, #81736
Location: New Jersey
Age: 23
Gender: Dude
Posts: 931
kyleTRDtaco12's Tacoma Gallery
hey common, im honestly being serious here.. im not joking around.. im sure the effect isnt profound but id just like to know for knowledge sake :/ and no, its not just for looks, it raises the boiling point of the coolant , and id like to know exactly what that means and what are the positives and negatives are about that... no need for the sarcasm
  Reply With Quote
Old 07-05-2012, 01:27 AM   #9
Senior Member
RacerAV is one of the sharper tools in the shedRacerAV is one of the sharper tools in the shedRacerAV is one of the sharper tools in the shedRacerAV is one of the sharper tools in the shedRacerAV is one of the sharper tools in the shedRacerAV is one of the sharper tools in the shedRacerAV is one of the sharper tools in the shedRacerAV is one of the sharper tools in the shedRacerAV is one of the sharper tools in the shedRacerAV is one of the sharper tools in the shedRacerAV is one of the sharper tools in the shed
Army:
Name: Adamo
Joined: Feb 2011, #52049
Location: Anaheim, CA
Age: 31
Gender: Male
Posts: 1,304
RacerAV's Tacoma Gallery
not sure about the TRD cap but
there ARE caps that hold higher pressure before letting out fluid to the over flow tank... I've used them in my 240s before... along with better electric fans, and lower temp thermostats. my engine ran cooler, safer, etc...
Adamo
  Reply With Quote
Old 07-05-2012, 01:28 AM   #10
Senior Member
RacerAV is one of the sharper tools in the shedRacerAV is one of the sharper tools in the shedRacerAV is one of the sharper tools in the shedRacerAV is one of the sharper tools in the shedRacerAV is one of the sharper tools in the shedRacerAV is one of the sharper tools in the shedRacerAV is one of the sharper tools in the shedRacerAV is one of the sharper tools in the shedRacerAV is one of the sharper tools in the shedRacerAV is one of the sharper tools in the shedRacerAV is one of the sharper tools in the shed
Army:
Name: Adamo
Joined: Feb 2011, #52049
Location: Anaheim, CA
Age: 31
Gender: Male
Posts: 1,304
RacerAV's Tacoma Gallery
forgot...

with that being said, I've ALSO bought caps that are just billet with a sweet sticker, just like oil caps of the same "performance" value... of ZERO...
  Reply With Quote
Old 07-05-2012, 01:38 AM   #11
Jetfixer
aptech is one of the sharper tools in the shedaptech is one of the sharper tools in the shedaptech is one of the sharper tools in the shedaptech is one of the sharper tools in the shedaptech is one of the sharper tools in the shedaptech is one of the sharper tools in the shedaptech is one of the sharper tools in the shedaptech is one of the sharper tools in the shedaptech is one of the sharper tools in the shedaptech is one of the sharper tools in the shedaptech is one of the sharper tools in the shed
 
aptech's Avatar
Name: Adrian
Joined: Apr 2012, #76417
Location: houston (angleton)
Age: 38
Gender: Male
Posts: 3,193
aptech's Tacoma Gallery
read this it makes sense. but its 50 dollors you live in the north east your temp does not get that hot. id be more worried about your freezing point.
http://forum.ih8mud.com/80-series-te...iator-cap.html
  Reply With Quote
Old 07-05-2012, 01:57 AM   #12
Don't give up here just yet
2TRunner is one of the sharper tools in the shed2TRunner is one of the sharper tools in the shed2TRunner is one of the sharper tools in the shed2TRunner is one of the sharper tools in the shed2TRunner is one of the sharper tools in the shed2TRunner is one of the sharper tools in the shed2TRunner is one of the sharper tools in the shed2TRunner is one of the sharper tools in the shed2TRunner is one of the sharper tools in the shed2TRunner is one of the sharper tools in the shed2TRunner is one of the sharper tools in the shed
 
2TRunner's Avatar
Name: Chris
Joined: Jul 2010, #40980
Location: Around To Many People
Gender: Male
Posts: 2,996
2TRunner's Tacoma Gallery
Ahhh, the radiator cap. The most overlooked cooling system component. Pretty neat little things.

- Rcaps have a PSI rating usually between 13 - 16 PSI. For each Lb of pressure, it will raise the boiling point of the coolant by 3 degrees. A 13 PSI cap will help raise the boiling point of the coolant by almost 40 degrees. It helps improve performance.

- 2 valves on a Rcap as well. 1 for when the engine is hot, one for when it's cold. One valve will open and allow excess coolant/pressure to bleed off (like into the overflow tank). The other valve is a vacuum valve. When/as the engine cools, a small vacuum is created in the cooling system sucking coolant out of the tank and back into the system.

So, the TRD cap, a higher pressure cap, will help increase the boiling point of your coolant just a little bit more. Idea being it will help improve C.S. performance.

Other than that, it's a nice shiny object.

(Coolant freezing points...The point of the ethelyne glycol (or whatever it's made of) in coolant is to really help the water it's cut with. The coolant in this regard, lowers the freezing point of the water so it dosen't freeze in your shit during a cold night. A typical mix is 50/50. Half coolant concentrate, half water. This gives about a -32 degree rating, VERY TYPICAL. If you get -32 in NJ, you got other problems. People in Alaska may run a 60/40 portion. 60% coolant to 40% water. The freeze protection will go even lower)
  Reply With Quote
Old 07-05-2012, 02:13 AM   #13
.....
ColtsTRD is one of the sharper tools in the shedColtsTRD is one of the sharper tools in the shedColtsTRD is one of the sharper tools in the shedColtsTRD is one of the sharper tools in the shedColtsTRD is one of the sharper tools in the shedColtsTRD is one of the sharper tools in the shedColtsTRD is one of the sharper tools in the shedColtsTRD is one of the sharper tools in the shedColtsTRD is one of the sharper tools in the shedColtsTRD is one of the sharper tools in the shedColtsTRD is one of the sharper tools in the shed
 
ColtsTRD's Avatar
Name: Scott
Joined: May 2009, #17177
Location: AZ
Gender: Male
Posts: 17,993
ColtsTRD's Tacoma Gallery
It's ALL useless w/o a TRD sticker and hood skewp!!!

All those things combined give ya 75 extra HP!!!
  Reply With Quote
Old 07-05-2012, 02:14 AM   #14
Senior Member
kyleTRDtaco12 is one of the sharper tools in the shedkyleTRDtaco12 is one of the sharper tools in the shedkyleTRDtaco12 is one of the sharper tools in the shedkyleTRDtaco12 is one of the sharper tools in the shedkyleTRDtaco12 is one of the sharper tools in the shedkyleTRDtaco12 is one of the sharper tools in the shedkyleTRDtaco12 is one of the sharper tools in the shedkyleTRDtaco12 is one of the sharper tools in the shedkyleTRDtaco12 is one of the sharper tools in the shedkyleTRDtaco12 is one of the sharper tools in the shedkyleTRDtaco12 is one of the sharper tools in the shed
 
kyleTRDtaco12's Avatar
Name: Kyle
Joined: Jul 2012, #81736
Location: New Jersey
Age: 23
Gender: Dude
Posts: 931
kyleTRDtaco12's Tacoma Gallery
Quote:
Originally Posted by aptech View Post
read this it makes sense. but its 50 dollors you live in the north east your temp does not get that hot. id be more worried about your freezing point.
http://forum.ih8mud.com/80-series-te...iator-cap.html

that was some pretty good info, and thanks, but my other question now is, after the one person said "the cap puts extra stress on the cooling system", would toyota and TRD actually design a part that would actually jeopardize the integrity of the vehicles cooling system??.. and my thinking there is probably not because its an actual toyota part... but what is your opinion on that now?? cause im sure there had to be a fair amount of r&d put into the cap.. idk.. thats why im here asking :/
  Reply With Quote
Old 07-05-2012, 02:14 AM   #15
Don't give up here just yet
2TRunner is one of the sharper tools in the shed2TRunner is one of the sharper tools in the shed2TRunner is one of the sharper tools in the shed2TRunner is one of the sharper tools in the shed2TRunner is one of the sharper tools in the shed2TRunner is one of the sharper tools in the shed2TRunner is one of the sharper tools in the shed2TRunner is one of the sharper tools in the shed2TRunner is one of the sharper tools in the shed2TRunner is one of the sharper tools in the shed2TRunner is one of the sharper tools in the shed
 
2TRunner's Avatar
Name: Chris
Joined: Jul 2010, #40980
Location: Around To Many People
Gender: Male
Posts: 2,996
2TRunner's Tacoma Gallery
Quote:
Originally Posted by ColtsTRD View Post
It's ALL useless w/o a TRD sticker and good skewp!!!

All those things combined give ya 75 extra HP!!!
And this...Duh!
  Reply With Quote
Old 07-05-2012, 02:18 AM   #16
Senior Member
kyleTRDtaco12 is one of the sharper tools in the shedkyleTRDtaco12 is one of the sharper tools in the shedkyleTRDtaco12 is one of the sharper tools in the shedkyleTRDtaco12 is one of the sharper tools in the shedkyleTRDtaco12 is one of the sharper tools in the shedkyleTRDtaco12 is one of the sharper tools in the shedkyleTRDtaco12 is one of the sharper tools in the shedkyleTRDtaco12 is one of the sharper tools in the shedkyleTRDtaco12 is one of the sharper tools in the shedkyleTRDtaco12 is one of the sharper tools in the shedkyleTRDtaco12 is one of the sharper tools in the shed
 
kyleTRDtaco12's Avatar
Name: Kyle
Joined: Jul 2012, #81736
Location: New Jersey
Age: 23
Gender: Dude
Posts: 931
kyleTRDtaco12's Tacoma Gallery
Quote:
Originally Posted by Quaker View Post
Ahhh, the radiator cap. The most overlooked cooling system component. Pretty neat little things.

- Rcaps have a PSI rating usually between 13 - 16 PSI. For each Lb of pressure, it will raise the boiling point of the coolant by 3 degrees. A 13 PSI cap will help raise the boiling point of the coolant by almost 40 degrees. It helps improve performance.

- 2 valves on a Rcap as well. 1 for when the engine is hot, one for when it's cold. One valve will open and allow excess coolant/pressure to bleed off (like into the overflow tank). The other valve is a vacuum valve. When/as the engine cools, a small vacuum is created in the cooling system sucking coolant out of the tank and back into the system.

So, the TRD cap, a higher pressure cap, will help increase the boiling point of your coolant just a little bit more. Idea being it will help improve C.S. performance.

Other than that, it's a nice shiny object.

(Coolant freezing points...The point of the ethelyne glycol (or whatever it's made of) in coolant is to really help the water it's cut with. The coolant in this regard, lowers the freezing point of the water so it dosen't freeze in your shit during a cold night. A typical mix is 50/50. Half coolant concentrate, half water. This gives about a -32 degree rating, VERY TYPICAL. If you get -32 in NJ, you got other problems. People in Alaska may run a 60/40 portion. 60% coolant to 40% water. The freeze protection will go even lower)

Thank you for all the info chris, very informative, any yes you're right, it is the most overlooked item in the cooling system lol
  Reply With Quote
Old 07-05-2012, 02:25 AM   #17
Don't give up here just yet
2TRunner is one of the sharper tools in the shed2TRunner is one of the sharper tools in the shed2TRunner is one of the sharper tools in the shed2TRunner is one of the sharper tools in the shed2TRunner is one of the sharper tools in the shed2TRunner is one of the sharper tools in the shed2TRunner is one of the sharper tools in the shed2TRunner is one of the sharper tools in the shed2TRunner is one of the sharper tools in the shed2TRunner is one of the sharper tools in the shed2TRunner is one of the sharper tools in the shed
 
2TRunner's Avatar
Name: Chris
Joined: Jul 2010, #40980
Location: Around To Many People
Gender: Male
Posts: 2,996
2TRunner's Tacoma Gallery
Quote:
Originally Posted by kyleTRDtaco12 View Post
Thank you for all the info chris, very informative, any yes you're right, it is the most overlooked item in the cooling system lol
GL w/ your purchase! Enjoy the truck!
  Reply With Quote
Old 07-05-2012, 09:42 AM   #19
Jetfixer
aptech is one of the sharper tools in the shedaptech is one of the sharper tools in the shedaptech is one of the sharper tools in the shedaptech is one of the sharper tools in the shedaptech is one of the sharper tools in the shedaptech is one of the sharper tools in the shedaptech is one of the sharper tools in the shedaptech is one of the sharper tools in the shedaptech is one of the sharper tools in the shedaptech is one of the sharper tools in the shedaptech is one of the sharper tools in the shed
 
aptech's Avatar
Name: Adrian
Joined: Apr 2012, #76417
Location: houston (angleton)
Age: 38
Gender: Male
Posts: 3,193
aptech's Tacoma Gallery
Quote:
Originally Posted by Leggo View Post
Jst get a new cap at ADAP for 15 bucks with a higher lbs. rating if you want. I am not sure why you want to go higher, usually you go lower when the radiator gets real old and weak.
read post above.
  Reply With Quote
Old 07-05-2012, 09:43 AM   #20
Jetfixer
aptech is one of the sharper tools in the shedaptech is one of the sharper tools in the shedaptech is one of the sharper tools in the shedaptech is one of the sharper tools in the shedaptech is one of the sharper tools in the shedaptech is one of the sharper tools in the shedaptech is one of the sharper tools in the shedaptech is one of the sharper tools in the shedaptech is one of the sharper tools in the shedaptech is one of the sharper tools in the shedaptech is one of the sharper tools in the shed
 
aptech's Avatar
Name: Adrian
Joined: Apr 2012, #76417
Location: houston (angleton)
Age: 38
Gender: Male
Posts: 3,193
aptech's Tacoma Gallery
Quote:
Originally Posted by kyleTRDtaco12 View Post
that was some pretty good info, and thanks, but my other question now is, after the one person said "the cap puts extra stress on the cooling system", would toyota and TRD actually design a part that would actually jeopardize the integrity of the vehicles cooling system??.. and my thinking there is probably not because its an actual toyota part... but what is your opinion on that now?? cause im sure there had to be a fair amount of r&d put into the cap.. idk.. thats why im here asking :/
agree. its up to you.
  Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Similar Threads
Thread Thread Starter Forum Replies Last Post
Alright, 'fess up! Who's got that TRD Radiator Cap? Kicker_Of_Elves 2nd Gen. Tacomas 21 11-11-2013 07:43 PM
TRD radiator cap Oat 1st Gen. Tacomas 20 08-16-2012 08:54 AM
Effects of Painting Radiator? Drunknsloth Detailing 23 05-16-2011 11:42 AM
Pedal recall...what are effects of the override system? Veccster 2nd Gen. Tacomas 35 10-19-2010 07:53 AM
Radiator Cooling with Grillcraft MX Grilles Vege-Taco 2nd Gen. Tacomas 11 08-21-2008 05:12 AM


Copyright © 2014 Tacoma Forum. Tacoma World is not owned by, or affiliated with Toyota Motor Corporation.