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Old 09-19-2009, 11:00 AM   #11 (permalink)
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Originally Posted by Christ View Post
In your sig, it says 20-25 amp... I went with 20.
Oo yeah i remember adding about 5-10 amp for the radio and my second amplifier .

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Old 09-19-2009, 11:02 AM   #12 (permalink)
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Well, that's still counted as an audio component... and if your head unit is 10 watts per channel, unless you're using a line out (non-pre-amped) it's 210 W max output to whatever speakers that amp is running. *the term is daisy chained*

If you have an amp powering another amp, you add up the wattage of the two amps. Most head units are amplified, so you add the wattage of the head unit to the wattage of the amp when considering your total output.
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Old 09-19-2009, 11:05 AM   #13 (permalink)
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Quote:
Originally Posted by Christ View Post
Well, that's still counted as an audio component... and if your head unit is 10 watts per channel, unless you're using a line out (non-pre-amped) it's 210 W max output to whatever speakers that amp is running. *the term is daisy chained*

If you have an amp powering another amp, you add up the wattage of the two amps. Most head units are amplified, so you add the wattage of the head unit to the wattage of the amp when considering your total output.
radio ( max 10 amp cause fuse is 10 amp ) probably more 4-5 amp (drive 2 speaker )

2 amplifier (independant )

prs-x320 2x 100 watts
prs-x220 2x30 watts
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Old 09-19-2009, 01:52 PM   #14 (permalink)
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Your problem isn't in the engine compartment.

Air at -30C holds zero water and is very dense. Remember the "rho" in the road load equation? That's air density. Aero drag is proportional to air density.

Also snow and ice covered roads enforce a very non-hypermiling style of driving.

Don't blame the gas.
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Old 09-19-2009, 02:29 PM   #15 (permalink)
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Originally Posted by Big Dave View Post
Your problem isn't in the engine compartment.

Air at -30C holds zero water and is very dense. Remember the "rho" in the road load equation? That's air density. Aero drag is proportional to air density.

Also snow and ice covered roads enforce a very non-hypermiling style of driving.

Don't blame the gas.
yes you are right

air is dense .
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Old 09-20-2009, 01:38 PM   #16 (permalink)
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Well, in the gas turbine world, for those who use diesel for fuel, it is recommended that the fuel be heated to 100 degF. Gasoline, a different animal.

"Maybe" heating gasoline from -30C to something above 0C might help a bit with combustion in keeping the cylinder temperature up - assuming you use a warm air intake in conjunction. Cold air plus cold fuel can't be the best combustion process.

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