Forced Induction Custom FI Setup Questions

.4 bar with no intercooler okay?

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Old 07-07-2005, 01:35 AM
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Default Re: .4 bar with no intercooler okay?

Originally Posted by Salad Days
---- the FMP, just run the shortest piping you can.
12 psi 5th gear pulls, i pull over, get the ---- out and that 2.5 front mount pipe is ice cold, not to mention I never see any IAT's above 100.....when i didn't have the front mount pipe, i saw some way higher temps.
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Old 07-07-2005, 01:41 PM
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Default Re: .4 bar with no intercooler okay?

Do the math a IC will drop temps by arround 45-50c in most cases.
See how much power that give you.

You can run with out an intercooler even with 88 octane gas. Youll just have to keep dialing back the timing. To avoid deto.
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Old 07-07-2005, 03:00 PM
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Default Re: .4 bar with no intercooler okay?

what math?

me + a big fat bling blang in front of my car = sudently my IATs will be 45 to 50 degrees celcius lower then the out side air temp? I'm not driving a ------- jew oven mr2.

onward....

an a air to air intercooler just prevents the air from heating up, it can't lower air temps past the enviromental air temperature.

what I'm saying is that my FMP provides enough cooling for my stock block turbo honda, at relitively high boost levels (10-15 psi) out of your stand size T3.
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Old 07-07-2005, 06:54 PM
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Default Re: .4 bar with no intercooler okay?

Originally Posted by Spenser


an a air to air intercooler just prevents the air from heating up, it can't lower air temps past the enviromental air temperature.

So moving air can not cool things off past the outside ambient air temp?

set your house thermostat to 70*F. Then sit there and feel the 70*. Then turn on a fan (simulating wind that would be hitting a fmic on a 70* day). Do you feel cooler then the 70* Environmental Air? I bet you do. I bet it's cooling you beyond the "environmental air temperature". Going 60 down the freeway will create a lot more wind then your little fan simulation thing. Now think about that hitting bare aluminum. That aluminum is going to cool off pretty nicely compared to a spray painted hunk of steel pipe.
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Old 07-07-2005, 07:06 PM
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Default Re: .4 bar with no intercooler okay?

Originally Posted by ju-on
Originally Posted by Spenser


an a air to air intercooler just prevents the air from heating up, it can't lower air temps past the enviromental air temperature.

So moving air can not cool things off past the outside ambient air temp?

set your house thermostat to 70*F. Then sit there and feel the 70*. Then turn on a fan (simulating wind that would be hitting a fmic on a 70* day). Do you feel cooler then the 70* Environmental Air? I bet you do. I bet it's cooling you beyond the "environmental air temperature". Going 60 down the freeway will create a lot more wind then your little fan simulation thing. Now think about that hitting bare aluminum. That aluminum is going to cool off pretty nicely compared to a spray painted hunk of steel pipe.
ummm... I"m hotter then the ambient air temp, so ofcourse i'd feel cooled down.... nice analogy blanky
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Old 07-07-2005, 07:28 PM
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Default Re: .4 bar with no intercooler okay?

That's the wind chill, moving the air will not make it colder. You probably will feel cooler but that's not because you lowered the temp of the air. The air around you might be a bit warmer since you're 98.6 degrees and warming the air up around you. Take a fan, and put a temp guage infront of it, notice the temp is exactly the same.
By your logic, air conditioning is pointless, you will be able to freeze something just by having enough fans.


Originally Posted by ju-on
Originally Posted by Spenser


an a air to air intercooler just prevents the air from heating up, it can't lower air temps past the enviromental air temperature.

So moving air can not cool things off past the outside ambient air temp?

set your house thermostat to 70*F. Then sit there and feel the 70*. Then turn on a fan (simulating wind that would be hitting a fmic on a 70* day). Do you feel cooler then the 70* Environmental Air? I bet you do. I bet it's cooling you beyond the "environmental air temperature". Going 60 down the freeway will create a lot more wind then your little fan simulation thing. Now think about that hitting bare aluminum. That aluminum is going to cool off pretty nicely compared to a spray painted hunk of steel pipe.
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Old 07-08-2005, 04:42 AM
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Default Re: .4 bar with no intercooler okay?

Moving on.
1. You cant get the Temps in the turbo to drop bellow ambient air temps. Unless its snowing and you have a watter sprayer and your doing 100 MPH. (Yeah I know the water sprayer will freeze up first. Unless you keep it close to the engine.)

2. Be it your tube flapin in the wind or a proper intercooler. Both are going to have some effect on dropin temps. That is going to have a known effect on ammount of power produced.

Do the math= Download the freebie Turbocalc and plug in the numbers or use the free ------hseets floating arround with all the formulae type up. Or make your own ------ sheet.
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Old 07-08-2005, 06:29 AM
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Default Re: .4 bar with no intercooler okay?

Originally Posted by Spenser
I run a 2.5 piece of pipe infront, like a FMIC, except now its a FMP!!!! (FRONT MOUNT PIPE) and run 14 psi all ------- day on my zc. no problems.
I've made the same ---- yesterday.

Runs great!
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Old 07-08-2005, 12:33 PM
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Default Re: .4 bar with no intercooler okay?

Forget the FMP - if you have no IC, just plumb the pipe by the most expedient possible means.

IC vs non-IC... who cares? While you have to be more liberal with ignition retard when raising the boost, your limit without an IC is the same as with an IC - it's called knock. When you get it, turn down the power or do something to improve charge temp, gas octane, knock limit, etc.

5-7 psi non-IC isn't going to hurt anything, just keep your eyes open, and upgrade from the FMU when you get your ducks in a row.
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Old 07-08-2005, 05:13 PM
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Default Re: .4 bar with no intercooler okay?

Originally Posted by chinoy
Moving on.
1. You cant get the Temps in the turbo to drop bellow ambient air temps. Unless its snowing and you have a watter sprayer and your doing 100 MPH. (Yeah I know the water sprayer will freeze up first. Unless you keep it close to the engine.)
what about a air to water intercooler filled with ICE
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