What's the big deal about Dual Overhead Cams?

[Mill]

Originally posted by: OuterSquare

Originally posted by: iamwiz82

Originally posted by: OuterSquare
My car has a DOHC motor. Midrange and low end is just fine, I can leave tire marks from a dead stop even though it's just a 4 banger econobox. :Q

i'm calling BS on this one.

ehh, whatever. Doesn't matter to me if you believe me or not.

What kind of car?

 

[OS]

a corolla. :Q

 

[Evadman]

I could do that in my prelude by tossing it into drive from 5000 rpm. fun till I toasted the trans.

 

[OS]

alrite, since everyone is calling BS, have a video

That's not my car, but it's the same car as mine.

 

[OS]

Originally posted by: Evadman
I could do that in my prelude by tossing it into drive from 5000 rpm. fun till I toasted the trans.

Neutral drop? Man even I'm not insane enough to do that.

 

[Demon-Xanth]

Damn near everyone beats V6 Mustangs. The Ford 3.8 V6 and GM 3.4V6 made for some slow ass "muscle cars"

 

[Howard]

New stangs (don't deserve capitalization) aren't worthy of speed.

 

[iamwiz82]

Originally posted by: OuterSquare
alrite, since everyone is calling BS, have a video

That's not my car, but it's the same car as mine.

you can see that he has the e-brake on!

 

[LAUST]

Originally posted by: OuterSquare

Originally posted by: LAUST

Originally posted by: OuterSquare
My car has a DOHC motor. Midrange and low end is just fine, I can leave tire marks from a dead stop even though it's just a 4 banger econobox. :Q

Dropping the clutch??

Powerbrake.

He's not BS'n then... The Video is a power brake also... Front turn back sit

I should have someone get my truck on camera when I go by at 40Mph and floor it and break em lose (OHV)

 

[Evadman]

I don't have OHC. I have OHV. Close as I can get. I have a I head Lawnmower

 

[lRageATMl]

Originally posted by: Yucky
New stangs (don't deserve capitalization) aren't worthy of speed.

I beg to differ...step into my car (or Millenium he has a sweet ride too) and I'll give you a whole new perspective.

 

[Pooteh]

What Does It Mean When A Car Has Dual Overhead Cams?

 

[B00ne]

dont worry dual overhead cams are old - soon car engines will loose the cam altogether. Like F1 engines already did. Technology usually is first explored in Hightech R&D extensive Motorsport and then migrates (when economically feasable) to the mainstream market....

 

[Kadarin]

OHV (non-overhead cam) design does not automatically mean your redline is limited to 6500rpm. (My '83 Mustang made power to about 7200rpm.) You do, however, need to pay attention to what parts you put in the motor: Roller cam and aluminum (needle-bearing, not ball/socket) roller rockers to reduce friction; camshaft with specs to make power at the desired rpm range, and valve springs with the right tension to make sure the valves do not float at that rpm. Appropriate intake manifolding and exhaust flow, along with cylinder head optimization to make sure there's enough airflow to feed the motor. Good rods, rod bolts, harmonic balancer, and other infrastructure. Synthetic oil.

 

[B00ne]

Originally posted by: Astaroth33
OHV (non-overhead cam) design does not automatically mean your redline is limited to 6500rpm. (My '83 Mustang made power to about 7200rpm.) You do, however, need to pay attention to what parts you put in the motor: Roller cam and aluminum (needle-bearing, not ball/socket) roller rockers to reduce friction; camshaft with specs to make power at the desired rpm range, and valve springs with the right tension to make sure the valves do not float at that rpm. Appropriate intake manifolding and exhaust flow, along with cylinder head optimization to make sure there's enough airflow to feed the motor. Good rods, rod bolts, harmonic balancer, and other infrastructure. Synthetic oil.

So basically, some day car manufacturers found out, if we want to meet our goals, instaed of doing all of the above it is cheaper to simply use 4 valves per cylinder and DOHCs (and probably produces a smoother running engine too by avoiding all that mass moving around at very high rpm)