The New/Prototype/Concept Car Topic
Yet another new Mercedes:
2007 Mercedes Benz SLR 722 Edition
No, the 722 doesn't stand for the amount of horses it's got. (unfortunately)

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2007 Mercedes Benz SLR 722 Edition
No, the 722 doesn't stand for the amount of horses it's got. (unfortunately)

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Calibra_14
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- ^Speed 12^
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- ^Speed 12^
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- WhereIsTheNsx
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- boganbusman
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Yeah and it's not just based on the DB9 specifically.PSZeTa wrote:It's already in development and called Rapide, if correct.^Speed 12^ wrote:Did you know that Aston Martin are thinking of making a 4-door DB9?
All of the the current Astons use the same VH platform which has been designed to stretch to any length/width. Not only does this save time for the engineers, but all Astons can be built on the same production line, including the new Rapide.
- steelsnake00
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Just found this.
The new Pininfarina concept
Ferrari P4/5

Could this be the next Ferrari supercar
This is the Ferrari 330 P3, for a comparison.
They have some parts in common and look basicly the same.

The new Pininfarina concept
Ferrari P4/5

Code: Select all
http://www.ultimatecarpage.com/frame.php?file=car.php&carnum=2830This is the Ferrari 330 P3, for a comparison.
They have some parts in common and look basicly the same.


Kid Cro wrote:O_O the P4/5 looks awsome! I wonder how many HP have that monser!?
master m wrote:Code: Select all
http://www.ultimatecarpage.com/frame.php?file=car.php&carnum=2830

almost every bloody car has DOHC
even my moms Hyundai Lantra has DOHC. it is the that it has 4 valves for each cylinder and the valves ar driven by 2 camshafts.
that is all it stands for Double OverHead Camshafts.
Older cars with 4 cylinders had 8 valves and where driven by 1 camshaft.
Back in the days that Honda placed the DOHC on their CRX's (in big) and on other cars. it was something new. and 16v engines where better, smoother and more economical engines, compared to the 8v version.
The thing what made honda engines have a high hp per CC is not the DOHC but the (i)VTEC systems.
If I am not mistaken some american cars still use a single camshaft for each row of cylinders.
Don't know wich exactly so won't name names
even my moms Hyundai Lantra has DOHC. it is the that it has 4 valves for each cylinder and the valves ar driven by 2 camshafts.
that is all it stands for Double OverHead Camshafts.
Older cars with 4 cylinders had 8 valves and where driven by 1 camshaft.
Back in the days that Honda placed the DOHC on their CRX's (in big) and on other cars. it was something new. and 16v engines where better, smoother and more economical engines, compared to the 8v version.
The thing what made honda engines have a high hp per CC is not the DOHC but the (i)VTEC systems.
If I am not mistaken some american cars still use a single camshaft for each row of cylinders.
Don't know wich exactly so won't name names
- boganbusman
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It's called a pushrod engineTheStig wrote:If I am not mistaken some american cars still use a single camshaft for each row of cylinders.
Don't know wich exactly so won't name names
The camshaft resides in the block, and reciprocates pushrods that move the rockers. Then the rockers push on the valves. So it's not just a single camshaft for each row of cylinders, it's a single camshaft for the whole engine.
It's popular among the V8 crowd because it's cheap, reliable, and very compact (a 5.8L Windsor pushrod V8 takes up less space than a 4.6L Mustang DOHC V8, for example)
And yes, many American and Australian V8's still use the pushrod desgn to this day.







