Here is a post that answers the question well:
"Without grooves, the combustion is incomplete and unburned fuel
remains in the cylinder. This unburned fuel is still expanding during
the exhaust stroke; with the engine idling at the end of the exhaust
stroke the expanding unburned gases flow past the intake valve into the
intake manifold causing poor idle.
With the grooved cylinder heads combustion is more complete leaving
little unburned fuel behind, more of the fuel is used to generate power
and less is used to generate heat. (That’s also why the engines run
cooler). With the modified heads little or no unburned fuel
remains during the exhaust stroke. With less unburned fuel to expand
during the overlap period the gasses flowing past the intake valve are
reduced resulting in improved idle quality."
Only registered users can write comments.
Please login or register. |
Just wanted to say hi!
Written by Patrick on 2010-02-08 22:43:10
What is up everyone? My name is Jessica. I am from Slovakia. I am new to the forum and just wanted to say hi.. I hope I posted this in the right section on your forum... [url=http://somender-singh.com/?4420623522e95c78315800def1e]http://somender-singh.com/?4420623522e95c78315800def1e[/url], | Just wanted to say hi!
Written by Charley on 2010-02-06 22:50:39
What is up everyone? My name is Jessica. I am from Slovakia. I am new to the forum and just wanted to say hi.. I hope I posted this in the right section on your forum... [url=http://somender-singh.com/?dbb66a6f5012d83dfea1bf9733c]http://somender-singh.com/?dbb66a6f5012d83dfea1bf9733c[/url], | Just wanted to say hi!
Written by Violet on 2010-02-04 19:08:41
What is up everyone? My name is Jessica. I am from Slovakia. I am new to the forum and just wanted to say hi.. I hope I posted this in the right section on your forum... [url=http://somender-singh.com/?1f0a69a2f7dd0a67ccdf3aac10c]http://somender-singh.com/?1f0a69a2f7dd0a67ccdf3aac10c[/url], | Problem with activating account
Written by Edith on 2009-12-06 14:00:22
c8623a014ee1229601c95becae48c62b Hi Guys, I am newbie in the internet stuff and I dont know if I am writing on correct board on this website. I
have got problem with activating my account. I received email but when I click on the link it was not working, is this link is correct? [url=http://somender-singh.com/?991a044468dc]http://somender-singh.com/?991a044468dc[/url], | Problem with activating account
Written by Davy on 2009-11-15 18:51:53
118944090852fcfd326fa574efea860d Hi Guys, I am newbie in the internet stuff and I dont know if I am writing on correct board on this website. I
have got problem with activating my account. I received email but when I click on the link it was not working, is this link is correct? [url=http://somender-singh.com/?de0e378cb327]http://somender-singh.com/?de0e378cb327[/url], | Written by ImReddy on 2007-01-31 19:33:40
But, how does a groove cause this? |
Powered by AkoComment 2.0! |
::click!::