Can someone explain to me what a Twincam, Dual overhead cam, single cam, ect. What is this "cam" and how does it affect the engine?

someone else will give you more info.......

but the cam 's are the bars at the top of the engine (under the top cover) with lugs on....
these lugs push the valves open to let fuel in and waste gas out !

single = 8 valves (one in. one out per cylinder)
double = 16 valves (two in. two out per cylinder)

this is a really simple way to understand it but the princable is right >>

they make the engine work, so quite important >>

This post has been edited by popstar: Mar 21, 2005 - 3:13 AM

WOW my barin is working again ... Single Cam ... is an eingine with come Camshaft (cam) ... like popstar sayd .. normally one intake valve and one exuast vavle per cylinder head..

Dual Overhead Cam is a engine that has 2 camshafts one works the intake valves the other the exhuast valves... they can be 8,16,24 and i even seen a 32 valve head ( boat) ....

Twin cam ... well that can be a DOHC .. or DUHC .. Dualunder head cam... < might have a few diffrenet names .. just can't remeber them right now..

hmm, makes a bit more sense now. Wish I could find somethin on yahoo that gives a nice in depth explanation tho. But I grasp the basic idea of it now, thanks guys

they best way to get a full graps of whats what.. it to see them... run inot BnN and look at a few books...

Or go to the library and they have the Chilton's and Haynes manuals to every car made in the last 20 years in a couple big editions. It will give you very good pictures of what your engine looks like. College libraries and public libraries have these for some reason.

no need to go look for books when you have the net. Try this site.. its awsome..

how stuff works (camshafts)

I think that's a cool site. I found that when I wanted to know what the overdrive did.

Also, I heard that with dual overhead camshafts, you have more tunability than the single overhead cam..