8v cam
Look out! Here comes the science! *ducks*
Single overhead cam (also SOHC) refers to the internal combustion engine design where one camshaft is located above the valves. SOHC engines are generally (but not always) limited to two valves per cylinder, one for intake and one for exhaust.
Double overhead cam (also called a dual overhead cam, DOHC, or "twincam") engine is a type of internal combustion engine where the camshafts that operate the intake and exhaust valves are mounted above the cylinders, and where there are separate camshafts for inlet and exhaust valves. In engines with more than one cylinder bank, such as the V engine, this designation means two camshafts per bank.........
Usually the cams operate the valves directly or by a short rocker, as opposed to pushrod engines which have long rods to transfer the movement of the lobes on the camshaft in the engine block to the valves in the cylinder head.
Double camshafts are not required in order to have multiple inlet or exhaust valves, but are necessary for more than 2 valves that are directly actuated (though still usually via tappets). However, not all DOHC engines are multivalve engines - DOHC was common in 2-valve engines for decades before multivalve heads appeared. Today, DOHC is normally synonymous with multivalve, since almost all DOHC engines also have between 3 and 5 valves per cylinder.
Thanks, Wikipedia *ahem*
Anyway, so your 8v Polo is SOHC. To have a twin-cam DOHC setup you would have to have an engine transplant I believe, it would be utterly pointless to throw a LOT of cash at your engine, have it converted to twin-cam (if that is even possible) and get a small gain in power that could have been achieved for less outlay through other methods.
I'm not technically savvy when it comes to engines but thats how I understand things to be. If I'm wrong, someone please correct me!
To make your car faster, lose weight (ie. strip put rear seats, sound deadening, heavy components like A/C) or invest in an exhaust system and induction kit. Even then it won't be *that much* faster than standard. Maybe a couple of seconds of your 0-62 if your are lucky!
Ever though of fitting NOS?
Any help?
Single overhead cam (also SOHC) refers to the internal combustion engine design where one camshaft is located above the valves. SOHC engines are generally (but not always) limited to two valves per cylinder, one for intake and one for exhaust.
Double overhead cam (also called a dual overhead cam, DOHC, or "twincam") engine is a type of internal combustion engine where the camshafts that operate the intake and exhaust valves are mounted above the cylinders, and where there are separate camshafts for inlet and exhaust valves. In engines with more than one cylinder bank, such as the V engine, this designation means two camshafts per bank.........
Usually the cams operate the valves directly or by a short rocker, as opposed to pushrod engines which have long rods to transfer the movement of the lobes on the camshaft in the engine block to the valves in the cylinder head.
Double camshafts are not required in order to have multiple inlet or exhaust valves, but are necessary for more than 2 valves that are directly actuated (though still usually via tappets). However, not all DOHC engines are multivalve engines - DOHC was common in 2-valve engines for decades before multivalve heads appeared. Today, DOHC is normally synonymous with multivalve, since almost all DOHC engines also have between 3 and 5 valves per cylinder.
Thanks, Wikipedia *ahem*
Anyway, so your 8v Polo is SOHC. To have a twin-cam DOHC setup you would have to have an engine transplant I believe, it would be utterly pointless to throw a LOT of cash at your engine, have it converted to twin-cam (if that is even possible) and get a small gain in power that could have been achieved for less outlay through other methods.
I'm not technically savvy when it comes to engines but thats how I understand things to be. If I'm wrong, someone please correct me!
To make your car faster, lose weight (ie. strip put rear seats, sound deadening, heavy components like A/C) or invest in an exhaust system and induction kit. Even then it won't be *that much* faster than standard. Maybe a couple of seconds of your 0-62 if your are lucky!
Ever though of fitting NOS?
Any help?