why do we have less boost when it is colder???
12-26-2003, 02:16 PM
#23
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mmmm im not sure what you mean - in theory a K04'd s4 should be able to make the same peak power
at sea level or up in the mountains - if they ran the same PSI - however most ecu's restrict boost amounts as a saftey at altitude - but if an s4 made 20psi at both places they would make the same power - but hte car is SLOWER because it takes longer to make that same power
12-26-2003, 03:04 PM
#25
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Maybe he's researching the net before opening his mouth this time....
That might take hours!
Hold on, brilliance to come!
But if he does post something, it might deliberately be innacurate to see if some of us will correct him! He's so tricky! (and full of it).
Mike S
Hold on, brilliance to come!
But if he does post something, it might deliberately be innacurate to see if some of us will correct him! He's so tricky! (and full of it).
Mike S
12-26-2003, 07:56 PM
#28
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Boost = volts, Mass = Amps! : ) More info inside
But seriously, think of boost purely as the pressure level of the manifold. The issue is, what is the consistency of the air in the manifold? The less dense the air is, the more boost needed to it the right mixture (roughly 14.7:1).
Without as much dense air, in order for the mixture to be correct, the injectors have to inject less fuel. If the ultimate fuel mixture is less fuel and air, you get a smaller combustion charge and therefore produce less energy which means less power.
Simple, really.
Mike S
Without as much dense air, in order for the mixture to be correct, the injectors have to inject less fuel. If the ultimate fuel mixture is less fuel and air, you get a smaller combustion charge and therefore produce less energy which means less power.
Simple, really.
Mike S
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was driving an evo yesterday and noticed the boost will spike at 20 and hold at 18 more.............
~DonQPremiumTequila~
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