what does 'wilder cam profile' mean
28 March 2009, 11:08 PM
#1
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what does 'wilder cam profile' mean
As above, i ask this because ive been told that the cams in a v3 sti head are of a wilder profile then those of a v4.
I would like to know as i want to know whats best for my 1998 uk classic upgrade.
]Cheers
I would like to know as i want to know whats best for my 1998 uk classic upgrade.
]Cheers
28 March 2009, 11:15 PM
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Hi joe cams are "rated" by:-
1. Lift
2. Duration
3. Overlap
1 is obvious more lift = more air in.
2 is the length of the crank rotation that the valve is open, longer = more air in.
3 is the amount of time both valves are open at TDC, aids purging of waste gases to increase efficiency.
Obviously this is a vastly simplified explaination, and doesn't carry a warranty !
dunx
1. Lift
2. Duration
3. Overlap
1 is obvious more lift = more air in.
2 is the length of the crank rotation that the valve is open, longer = more air in.
3 is the amount of time both valves are open at TDC, aids purging of waste gases to increase efficiency.
Obviously this is a vastly simplified explaination, and doesn't carry a warranty !
dunx
28 March 2009, 11:21 PM
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As above,
Found this out when i went though my Vectra V6 phase lol
If you fit 3 litre cams to a 2.5V6 vectra, it basicly keeps the cams open for longer to allow more fuel in thus.... producing more power/energy, very simple mod taking a 2.5V6 vectra from 168bhp to 192bhp (GSI spec) for less than 150 quid
bargin lol
Found this out when i went though my Vectra V6 phase lol
If you fit 3 litre cams to a 2.5V6 vectra, it basicly keeps the cams open for longer to allow more fuel in thus.... producing more power/energy, very simple mod taking a 2.5V6 vectra from 168bhp to 192bhp (GSI spec) for less than 150 quid
bargin lol
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