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<blockquote data-quote="tofu_manic" data-source="post: 1063531106" data-attributes="member: 46980"><p>friend, i think uve got things the other way round</p><p></p><p>an aftermarket cam dusnt 'give' more fuel; instead it requires more air and more fuel supplied by the carburettor</p><p></p><p>think of it this way, which one will consume more fuel:</p><p></p><p>a higher hp 4g15 with racing cam</p><p>a lower hp 4g15 stock standard</p><p></p><p>generally, more power requires (not gives) more fuel</p><p></p><p>-.- did ur mech advise u to cabut ur cam</p><p></p><p>by his logic, anything that increases the requirement for fuel (like bigger block/cam) will increase the richness of the afr even when the carburettor main jet/air corrector is still small and is more suited to a smaller engine? </p><p></p><p>let's say ur weber was previously from a 4g13 with a racing cam</p><p></p><p>that means the previous owner will have changed to larger main jets/air correctors to give the engine the fuel/air it needs at higher rpm</p><p></p><p>so now he sells it to another feller using a stock standard 4g13...without any changes made to the weber, for sure the car will run richer than it needs to be </p><p></p><p>so if u now follow what the previous owner did, and installed the same racing cam, ur weber settings will be more or less quite cun edi la...</p><p></p><p>correct? haha</p><p></p><p>hope i make sense lol</p></blockquote><p></p>
[QUOTE="tofu_manic, post: 1063531106, member: 46980"] friend, i think uve got things the other way round an aftermarket cam dusnt 'give' more fuel; instead it requires more air and more fuel supplied by the carburettor think of it this way, which one will consume more fuel: a higher hp 4g15 with racing cam a lower hp 4g15 stock standard generally, more power requires (not gives) more fuel -.- did ur mech advise u to cabut ur cam by his logic, anything that increases the requirement for fuel (like bigger block/cam) will increase the richness of the afr even when the carburettor main jet/air corrector is still small and is more suited to a smaller engine? let's say ur weber was previously from a 4g13 with a racing cam that means the previous owner will have changed to larger main jets/air correctors to give the engine the fuel/air it needs at higher rpm so now he sells it to another feller using a stock standard 4g13...without any changes made to the weber, for sure the car will run richer than it needs to be so if u now follow what the previous owner did, and installed the same racing cam, ur weber settings will be more or less quite cun edi la... correct? haha hope i make sense lol [/QUOTE]
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