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Author SOHC and DOHC???
Fraser Young
Member

Registered: 26th Dec 02
Location: Dundee City Drives: 58 Impreza WRX
User status: Offline
7th Jun 03 at 12:58   View User's Profile U2U Member Reply With Quote

quote:
Originally posted by animality-gt
sum v8's hav quad cams and 32 valve
which is pretty impressive.

does anyone know how many valves f1 cars have?


They are V10 engines... The norm is 40-50... Maximum of 50 valves...
Cursa
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Registered: 30th Mar 02
Location: Dumfries & Galloway
User status: Offline
7th Jun 03 at 13:07   View User's Profile U2U Member Reply With Quote

Rob - Some scooby's are quad cam, i don't know if the Impreza's are, but my dad's 2.5 Legacy is.
ainsley_brader
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Registered: 24th Mar 02
Location: Tattershall, Lincolnshire
User status: Offline
7th Jun 03 at 14:40   View User's Profile U2U Member Reply With Quote

Subaru impreza STi is definitely quad cam the cambelt is like a skipping rope.

Also dohc sierras were 8V!!
Adam_B
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Registered: 13th Dec 00
Location: Lancashire
User status: Offline
7th Jun 03 at 22:22   View User's Profile U2U Member Reply With Quote

quote:
Originally posted by animality-gt
the scooby engine is called a boxter engine,same as the porshe engine.

dont 4 get people about the early push rod cams (that shud confuse things sum more)


Boxer i beleive, no t.
TRL
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Registered: 24th Mar 01
Location: planet tharg
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8th Jun 03 at 08:20   View User's Profile U2U Member Reply With Quote

I think that all F1 engines now use 4 valves per cylinder. 5 per cylinder only really works in long-stroke engines, and an F1 engine is VERY SHORT stroke.
The most valves I've heard of in a petrol engine is 8 in the Honda NR750 (I think). The pistons were very oval, had 2 titanium conrods each and 2 plugs per cylinder. If you google NR750 you should come up with some cool looking pics of the engine in part form.
Tony

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