isplacement.gif
Some slly tech questions
Thread Starter
Race Director
Joined: Feb 2006
Posts: 10,336
Likes: 14
From: Bellville OH
St. Jude Donor '06
Some slly tech questions
Ok had a few threads about my cars issues now I have some questions I have been wondering about.
How exactly is an engines displacement measured, is it the volume of all the cylinders when they are at drop dead bottom? What does "stroker" mean, is it when your port in short pistons thereby reducing the Compression ratio does it also increase the displacement making it a "stroker"
I know our engine have four strokes, so it ignites pushing the piston down then as it come back up the exhaust port opens and out goes the exhaust, then on the way back down it sucks in the air and fuel, and on the way up again it compresses the mixture and ignites it again. So for every engine revolution does only one cylinder fire, or all 8 or just four???
What direction does the engine rotate and why?
Sorry for the n00b questions, the guys over in C3 gen had to explain to me what "long block" and "short block" meant.
How exactly is an engines displacement measured, is it the volume of all the cylinders when they are at drop dead bottom? What does "stroker" mean, is it when your port in short pistons thereby reducing the Compression ratio does it also increase the displacement making it a "stroker"
I know our engine have four strokes, so it ignites pushing the piston down then as it come back up the exhaust port opens and out goes the exhaust, then on the way back down it sucks in the air and fuel, and on the way up again it compresses the mixture and ignites it again. So for every engine revolution does only one cylinder fire, or all 8 or just four???
What direction does the engine rotate and why?
Sorry for the n00b questions, the guys over in C3 gen had to explain to me what "long block" and "short block" meant.
Burning Brakes
Joined: Aug 2007
Posts: 866
Likes: 0
From: Madison Wisconsin
Ok had a few threads about my cars issues now I have some questions I have been wondering about.
How exactly is an engines displacement measured, is it the volume of all the cylinders when they are at drop dead bottom? What does "stroker" mean, is it when your port in short pistons thereby reducing the Compression ratio does it also increase the displacement making it a "stroker"
I know our engine have four strokes, so it ignites pushing the piston down then as it come back up the exhaust port opens and out goes the exhaust, then on the way back down it sucks in the air and fuel, and on the way up again it compresses the mixture and ignites it again. So for every engine revolution does only one cylinder fire, or all 8 or just four???
What direction does the engine rotate and why?
Sorry for the n00b questions, the guys over in C3 gen had to explain to me what "long block" and "short block" meant.
How exactly is an engines displacement measured, is it the volume of all the cylinders when they are at drop dead bottom? What does "stroker" mean, is it when your port in short pistons thereby reducing the Compression ratio does it also increase the displacement making it a "stroker"
I know our engine have four strokes, so it ignites pushing the piston down then as it come back up the exhaust port opens and out goes the exhaust, then on the way back down it sucks in the air and fuel, and on the way up again it compresses the mixture and ignites it again. So for every engine revolution does only one cylinder fire, or all 8 or just four???
What direction does the engine rotate and why?
Sorry for the n00b questions, the guys over in C3 gen had to explain to me what "long block" and "short block" meant.
Stroker typically refers to when you make the pistons "stroke" longer, thus increasing displacement.
Reducing/Increasing compression depends on your specific application. They say typically that the lower the compression the better it is for forced induction (FI) and the higher the better for naturally aspirated (NA).
Two on each side ignite and then reverse order so that all fire.
I believe most engines rotate counterclockwise. But there are some that rotate clockwise. Take a look at how differentials and transmissions work to get your answer there.
I'm not very smart either.. but hopefully no body calls me stupid.
Thread Starter
Race Director
Joined: Feb 2006
Posts: 10,336
Likes: 14
From: Bellville OH
St. Jude Donor '06
Engine Displacement is measured by borexstroke
Stroker typically refers to when you make the pistons "stroke" longer, thus increasing displacement.
Reducing/Increasing compression depends on your specific application. They say typically that the lower the compression the better it is for forced induction (FI) and the higher the better for naturally aspirated (NA).
Two on each side ignite and then reverse order so that all fire.
I believe most engines rotate counterclockwise. But there are some that rotate clockwise. Take a look at how differentials and transmissions work to get your answer there.
I'm not very smart either.. but hopefully no body calls me stupid.
Stroker typically refers to when you make the pistons "stroke" longer, thus increasing displacement.
Reducing/Increasing compression depends on your specific application. They say typically that the lower the compression the better it is for forced induction (FI) and the higher the better for naturally aspirated (NA).
Two on each side ignite and then reverse order so that all fire.
I believe most engines rotate counterclockwise. But there are some that rotate clockwise. Take a look at how differentials and transmissions work to get your answer there.
I'm not very smart either.. but hopefully no body calls me stupid.
Burning Brakes
Joined: Aug 2007
Posts: 866
Likes: 0
From: Madison Wisconsin
Tech Contributor
Joined: Jan 2007
Posts: 19,398
Likes: 1,139
From: Dyer, IN
Ok had a few threads about my cars issues now I have some questions I have been wondering about.
How exactly is an engines displacement measured, is it the volume of all the cylinders when they are at drop dead bottom? What does "stroker" mean, is it when your port in short pistons thereby reducing the Compression ratio does it also increase the displacement making it a "stroker"
I know our engine have four strokes, so it ignites pushing the piston down then as it come back up the exhaust port opens and out goes the exhaust, then on the way back down it sucks in the air and fuel, and on the way up again it compresses the mixture and ignites it again. So for every engine revolution does only one cylinder fire, or all 8 or just four???
What direction does the engine rotate and why?
Sorry for the n00b questions, the guys over in C3 gen had to explain to me what "long block" and "short block" meant.
How exactly is an engines displacement measured, is it the volume of all the cylinders when they are at drop dead bottom? What does "stroker" mean, is it when your port in short pistons thereby reducing the Compression ratio does it also increase the displacement making it a "stroker"
I know our engine have four strokes, so it ignites pushing the piston down then as it come back up the exhaust port opens and out goes the exhaust, then on the way back down it sucks in the air and fuel, and on the way up again it compresses the mixture and ignites it again. So for every engine revolution does only one cylinder fire, or all 8 or just four???
What direction does the engine rotate and why?
Sorry for the n00b questions, the guys over in C3 gen had to explain to me what "long block" and "short block" meant.
While you will get answers here, you could easily do a search on the web, and spend the rest of the night reading about your specific questions. Especially since they are not corvette questions.
Safety Car
Joined: May 2006
Posts: 3,799
Likes: 1
From: Northern Virginia
St. Jude Donor '08
Former Vendor
Joined: Nov 2005
Posts: 8,995
Likes: 2
From: Spring Texas
St. Jude Donor '08
If i remember correctly, there's also a more accurate (though more difficult to calculate) measurement called dynamic compression. This is the area of the cylnder between the piston and the combustion chamber when the valves are closed (which doesn't always occur at bottom dead-center.
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