It seems that way. But let's think for a minute about the way an A/C unit works, or what happens when air is vented from a pressurized container - both of those create an exit temp lower than ambient through a drop in pressure. If there is a pressure drop (as you pointed out earlier), it would seem theoretically possible that the air temp can be reduced to less than ambient.

Now, I'm not saying that it IS the case, but given that a pressure drop can and does dramatically reduce temps in the aformentioned situations, it seems possible. . . although a drop in pressure across the IC probably more than offsets any improvement via further temp reduction.

 

David so is your core a spearco or not?

 

Some people believe hype over fact?

I looked at the results and am going to have to agree with David that something is clearly wrong with those tests. Otherwise, Nesei would be defying the laws of physics and we should all buy one.

 

A/C does not use air to create the pressure drop to reduce the temperature it uses refrigerant.
We are talking about 20 some odd pounds of pressure. Dropping it a pound or two is not going to cool it below ambient when the air cooling it is ambient. The fact that there is a pressure drop should only raise the temperature on the outlet because there is inevidably more temperature because the turbo is working a lot harder to over come the pressure drop. Therefore it is heating the air even more on the inlet side.

 

duroevo,

Can you read? Can you look at a test result for yourself? If so how is it that you cannot see the inlet air temps reading being wrong in their test and that you can't see the difference in pressure drop, that they don't mention, in their testing? If all you have time for is busting my ***** here and you don't have time to LOOK at what is obvious please refrain from posting.

Giving you further explanations on the voting wouldn't do any good as it is obvious to me you can't even grasp what I have shown and explained so far.

David Buschur
www.buschurracing.com

 

timzcat,

Thank you.

David Buschur
www.buschurracing.com

 

DB is owning em'

 

I'll put in 100.00 for it right now as well : ). I just don't see the fact that Dave needs to buy one to prove to the whole world his is better. Heck what track records does Nisei have and what track record does Buschur have .

 

It matters not, air and refrigerant are both a gas a ambient temp and the principle is the same. Crack the valve to a compressed air cylinder and watch the escaping air cause the formation of ice at the orifice - well below ambient temp.


Without whipping out a calculator and putting further thought into it, I'd tend to agree with you, and I was no less surprised than you to see lower than ambient temps in the log. However, because there have been times when what's worked out one way in my head didn't work out the same way when physics was applied, I caution against using the term "impossible". That is presented FWIW.

 

Trust me you will not regret it. You are making the right choice .

 

Their is definitely something funny regarding the Nisei test. I couldn't fathom how much pressure drop across the core their would have to be to get it below ambient.

 

Ted B.
I agree with you that a considerable pressure drop will cause the air to be colder coming out of the air compressor. But as you agree we are talking a very small amount of pressure drop here, not 100psi to 0 psi.
My point with the refrigerant is that it will be colder then air (primarily Nitrogen and Oxygen) when the pressure is dropped from well over 100 to 35 or so.

 

Yes Doug, I agree with you. Actually, the more I think about it, the reduction in temp through pressure reduction across an orifice results from the air carrying heat away from the surface as it escapes. This would mean the exiting air would actually be hotter while driving the temp of the IC itself downward. Of course, we'd be talking about a miniscule change, and it's moot.

I am asking the same questions as you at this point.

 

Ive done my research im pretty sure they all use some type of spearco blank so you really cant go wrong. Im leaning towards the peak boost kit because the pipeing has been done really well and the core is pretty darn big. I know the buschur race mount is the big dog but the price is a little out of my range.

 

After 6 pages i cant stop laughing. I love the kids who bought into that stupid video that Nisei put out and are just fighting becuase they dont want to admit they were brainwashed into a mediocre piece. I'm going to go ahead and trust the guy who knows our cars inside and out and has done NOTHING but research and develop since the dawn of DSM's. Enough said.