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Old Oct 27, 2007 | 10:43 AM
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Default air cooling and HP

if you had a enormous fan on your engine, blowing 0 degree air or colder, and the car's rated at 300hp, can you potentially get 'more' than 300hp? in other words, your engine, temp stays very cool.
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Old Oct 27, 2007 | 10:58 AM
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Atomization of fuel (efficiency of burn) is dependent on a properly temped motor. In essence, a motor that needs 210 to achieve peak performance will loose HP @ 180 degrees. Cylinder vaporization is compromised
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Old Oct 27, 2007 | 11:18 AM
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Also, for about every 10 degrees you decrease, you gain 1HP.
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Old Oct 27, 2007 | 11:22 AM
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Originally Posted by Eazzzzzzy
Atomization of fuel (efficiency of burn) is dependent on a properly temped motor. In essence, a motor that needs 210 to achieve peak performance will loose HP @ 180 degrees. Cylinder vaporization is compromised
that's a very interesting input, thanks.

Originally Posted by HR_Z-Ballz
Also, for about every 10 degrees you decrease, you gain 1HP.
didn't know this either. can somebody else confirm this?
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Old Oct 27, 2007 | 01:38 PM
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Originally Posted by HR_Z-Ballz
Also, for about every 10 degrees you decrease, you gain 1HP.
I'm sorry but this is just wrong

The answer is, in short, no - and engine works at peak efficiency within a specified range. Deviate from that range and the engine will not be nearly as efficient as it could be and as such, power is compromised.
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Old Oct 27, 2007 | 02:14 PM
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To clarify---I stated NO to the increased HP with Temp Drop----Somehow there seems to be a misunderstanding with HR Z-Ballz contradiction to my statement
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Old Oct 27, 2007 | 02:19 PM
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There are fine lines---mainly with the Post early 90s Motors---They ran overly hot to keep EPA happy and a slight temp drop would give a SMALL increase in HP and an increased engine longevity. Those scrambles to please EPA with decreased efficiency are thankfully over due to inovative modern balances
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Old Oct 27, 2007 | 02:22 PM
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Originally Posted by Cannysage
if you had a enormous fan on your engine, blowing 0 degree air or colder, and the car's rated at 300hp, can you potentially get 'more' than 300hp? in other words, your engine, temp stays very cool.
BTW---Are you on the Crack again ????
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Old Oct 27, 2007 | 03:23 PM
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^ nah, I haven't smoked anything all week. just trying to decide on the effetiveness of a vented hood on a NA setup. I'm wondering if you would benefit more from 'disscipating' heat, or cooling the engine bay. also comparing that to a benefit of the air hitting the intake.
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Old Oct 27, 2007 | 03:26 PM
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Cooler intake air and/or hotter combustion would make the engine more efficient if my thermodynamics serves me right.
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Old Oct 27, 2007 | 03:28 PM
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any means you have to vent heat from the engine bay is a good thing, no matter what setup you are running. But this is not what your original question asks at all

If for nothing else, you will likely get longer life from all the rubber lines in the engine bay, as well as the wiring, which is prone to getting brittle with age/heat cycles
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Old Oct 27, 2007 | 03:49 PM
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From: SO_CAL
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^ yeah, I wanted to know, in my original post, that, with a sufficient/extreme cooling, can you actually achieve 'more' HP than the factory rated power. I'd assume engine runs much hotter than 210 degrees, so let's say you have optimal cooling.. can it actually go beyond 300hp?
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Old Oct 27, 2007 | 03:51 PM
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no

you make more power by improving combustion efficiency (or altering the combustion process somehow, via ecu tuning, etc), or changing the way the car ingests, and pumps out, air

cooling the block, by my best estimation, would not accomplish either of these two things.

Last edited by Z1 Performance; Oct 27, 2007 at 03:53 PM.
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Old Oct 27, 2007 | 04:27 PM
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cool. thanks for the feeback z1 and everyone else.
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Old Oct 27, 2007 | 04:31 PM
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Increasing the delta T would make mo powa
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Old Oct 27, 2007 | 05:20 PM
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Originally Posted by Cannysage
^ nah, I haven't smoked anything all week. just trying to decide on the effetiveness of a vented hood on a NA setup. I'm wondering if you would benefit more from 'disscipating' heat, or cooling the engine bay. also comparing that to a benefit of the air hitting the intake.
Thats a whole different story ------I run a vented hood and intakes. You are dissipating radiant heat. That will have no effect on your combustion temps(to speak of). This is a good thing !!!!!

*was picturing Cannysage mounting a Windmill tied into a refrigeration unit, lowering Block Temp to Absolute Zero and being attacked by Don Quiote.*
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