NOOB question alert!

1. user_39173 Frequent Poster Joined: Nov 2009 Hull Posts: 983 01' Ph1 VTS

   #1 9th January 2010, 13:29

   Ok ive been hearing the words "heat soak" alot recently with all the induction kit posts, what is "heat soak" then.
   
   Cheers - Jon
2. user_31124 Regular Poster Joined: Feb 2009 Piesok,Slovakia Posts: 254 Silver MK II VTS 1.6 16V 2002

   #2 9th January 2010, 14:04

   air sucked through throttle body is heated from engine,but that can happen only if u have some rubbish induction kit.For example simota/raceland induction is hot when u stop the car,but when you driving i have doubts that air has more degress in compare to stock airbox.And i think airflow is pretty higher than in stock one.
3. user_39173 Frequent Poster Joined: Nov 2009 Hull Posts: 983 01' Ph1 VTS

   #3 9th January 2010, 14:08

   Quote:

   Originally Posted by misulko air sucked through throttle body is heated from engine,but that can happen only if u have some rubbish induction kit.For example simota/raceland induction is hot when u stop the car,but when you driving i have doubts that air has more degress in compare to stock airbox.And i think airflow is pretty higher than in stock one.

   thanks mate, on my older saxo, i had a problem when the throttle was put all the way down it would go but it wouldnt go that well if you got me, if the accelerator was put like 3/4 way down it was much much quicker, was that heat soak?
4. JamesRm Forum Section Moderator Joined: Aug 2008 Liverpool Posts: 15517 Saxo VTR

   #4 9th January 2010, 14:11

   Quote:

   Originally Posted by misulko air sucked through throttle body is heated from engine,but that can happen only if u have some rubbish induction kit.For example simota/raceland induction is hot when u stop the car,but when you driving i have doubts that air has more degress in compare to stock airbox.And i think airflow is pretty higher than in stock one.

   Worded a little confusingly imo mate
   
   A open induction kit, will take the air in from around the engine bay which is hot because of the engine and other parts such as the exhaust manifold. Sucking hot air in is bad as it is less dense so contains less oxygen so decreases performance.

   1 user thanked this post: user_39173
5. user_31124 Regular Poster Joined: Feb 2009 Piesok,Slovakia Posts: 254 Silver MK II VTS 1.6 16V 2002

   #5 9th January 2010, 14:44

   yes i wrote it confusingly,but i couldn´t edit my post.My english isn´t perfect sorry for that...
   
   JonCarter:No.Heat soak causes slight decrease in performance all way around and it has nothing to do with position of thottle body(gas pedal)