I love the so called experts....this makes me want a drink.....
These guys don't have a fuckin clue......as to what works....but they want to sell you their crap...
Quote from Lotus Talk
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Today, 07:39 AM #139
Thomasio
Internat'l Man of Mystery
Join Date: Jul 2003
Posts: 2,082
Quote:
Originally Posted by kohtzing
Will these new intercoolers work and provide a performance benefit with the stock roof?
Great question. The short answer is: yes, but not as much as with better ducting.
Here are the benefits: 1) lower restriction: less pressure loss, 2) higher cross sectional area: faster return from a "heat soak" state, 3) higher internal volume: better heat transfer, 4) higher thermal capacitance: prevents spikes in intake air temperatures.
As to point #4, here is an analogy. (No, it isn't a perfect analogy, but it is helpful). Let's say that the heat in the compressed air is "absorbed" by the mass of the intercooler. The intercooler can "absorb" so much heat before it can no longer function as an effective heat exchanger, which means that the intake air temperatures rise to unhealthy levels.
In our analogy, we imagine an average person drinking alcohol. Let's call him "Stocker." Along with this average person, there is a large athletic guy, we'll call him "RLS."
In our analogy, alcohol is like heat...
Both drinkers have about one beer per hour... and we don't notice much of a difference between how they are affected, because their bodies are processing the alcohol at about the same rate. (Did I mention that RLS also has a bigger liver? His body actually processes the alcohol a bit quicker, but at low levels of alcohol intake we don't notice a difference.)
But now we see the bar tender is about to turn it up a notch... the very lovely bar tendress pours three shots of the finest Mezcal for each of our brave drinkers. Stocker does his best to throw down the drinks, but within minutes he is so buzzed that he needs to sit down. His liver is gettting to work removing the alcohol from his body, but it has more than it can deal with. On the other hand, "RLS" threw back his shots and minutes later cracks a smile and said "bring it on!" His large mass is able to absorb more alcohol without his blood alcohol level raising much. And his larger liver means that he will be back to sober a bit quicker than our lightweight friend Stocker.
Oh no! Here comes the bartendress again... she has three more shots! What's Stocker going to do? He's already legally drunk, his liver isn't keeping up with the amount of alcohol coming in anyway... look, it looks like the alcohol isn't even absorbing into his body... it seems to be all over the floor! RLS grins, downs the three drinks, and he's still standing.
Back to heat exchangers... the heat exchanger with more cross sectional area is able to shed that heat faster (like alcohol with a larger liver). The heat exchanger with greater thermal capacity is like the drinker with the larger body.
Not the best analogy, but it should get some thinking about thermal capacity... it's a good thing, especially combined with the ability to shed heat more rapidly.
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07 SY Exige S
Really Light Stuff Intercooler . RLS Tubes . RLS Water Injection . Prototype Composites CF Roof . PC CF Front Spoiler
and also cleaned house with the 255cup intercooler back in 06.......no water injection 
