You have my full attention, sir.

 

Single pass all the way. Only reason the multi pass is in there is because the OE pump couldnt move fluid through the circuit fast enough so you try to get it to spend more time in the there taking as much heat out as possible. Also remember that it originally was tied in with the engine cooling circuit so the objective was keeping the temp under 160 and having an easily maintained system vs what we are trying to do now and that is to get the intake charge as low as we can.

 

yes sir, you have a lot of people's attn now.....looks good...let's hope the testing goes well...

 

If all goes well, it should kick some serious tail over the stock one.


Queue up evil mau5 laugh...



HA HA HA HA HA HA HA HA HA HA HA HA HA!!!!!!!

 

Well were on the page on the single pass design concept and I have been testing that approach. I believe in the highest differential between the inlet water and the engines hot - boosted air. I calculating the air to be about 240 degrees under full boost. With the cold water going across the entire core should extract the greatest amount of heat, especially since many of us are running the Needswings supercooler, an enhanced HE cores.

I hope to do a comparative test between the stock core and a parallel ( single ) pass flow design showing the relative restriction in an actual water circuit. This test will show the full circuit, pump - HE - IC - and all interconnecting hose restrictions. Yippie

Enjoy Woody

Weekend

 

yes!!!!!!!!!!

 

Woody, this isn't something new. The aftermarket world has been using single pass cores with forced induction for years. If I had your knowledge of air conditioning, I'd quit looking into why this crappy stock core is so crappy and start looking into cooling the IC with refrigerant. I'm not talking about a killer chiller or something else using a heat exchanger but rather something that is single unit and will yield some seriously low charge air temps.

 

Nice work Rudy!

 

We could do a refrigerant system, if the compressor does not detonate at the high engine speeds. IT would be easy to cool below the ambient if we could accept the high engine loads and enormous HIGH STATIC pressure condenser we would need. Our auto AC coil is good for about 1 ton more or less, and that is only 12,000 BTU per hour, which is at least 1/4th of what
we want - need.

I need to establish the baseline performance levels of what we got, so as to quantify and measure any improvement (s ). This way I can determine if the gains are worth the cost and efforts involved and do a thoughtful trade off.

Woody

 

I have a mini fridge...do I need to rip it apart and install all that under my s/c .......

 

I thought the same thing when I saw the jig. "NOW it just got real!"

 

Rudy is just an ole' farm boy....he is used to the different smells coming from the farm....but us...well, we have learned once we are around Rudy a bit, the smell coming from him is from the "Compart" skunk works.......something is always being invented, we just need to smell around a little more.....

 

 

SECRET SKUNK Works to boot......time to load up the spy camera's......

 

yes - refridge. gas would be great - but the unit would be huge.
eg: your large home wall mounted AC is normally rated for 8kW (30kBTU's/hr) cooling. Ducted systems go 12-15kW (50kBTU's/hr).
I mean we are talking huge heat pumps....and then there's the crank drain which would be at least a 3rd of that - so -5kW (-7hp)...but the compressor would probably be 4 times the size of our current one.
I was actually wondering if a Rolls Royce had an AC this size??? - That is, if they even makee them that size for big luxury cars (or "stretches" maybe).....Woody may know.

As Woody also indicated, you need 50BTU's/hr (in addition to the suppercooler you already added) to start to talk serious AIT reduction with a stacked pulley setup (>20psi).
Every degree F reduction in AIT is worth about 0.7 hp at the crank - so 18F = 13hp (due to the increase in your density)

Woody...devil's advocate....will there be a bias of temps going up the Y-pipes if the air coming out of the CAC is hotter on one side than the other? Be good to make sure turbulence can take care of that.....
otherwise the right bank might run a little hot.

 

Thats a good question, but the gasses exit the IC, hit the wye and are very turbulent so I feel confident that the air will be a well mixed blend of left and right air, if you allow me to 'color' the temps in this manner. There are 15 CORES with like 25 holes for the water, I feel that the mixture will not show a measurable gradient, remember the velocity that this stuff is moving, its a hurricane in there. Enjoy, WOody

 

Holy crap you're building one from scratch. Looks well built so far. I can tell that I have shop/garage envy already.

 

ill take a few pics tommorrow of my new shop toy. your shop envy will grow twofold!

 

So why is everyone obsessing over the IC design if even running ice water doesn't get you any ponies?

 

The same reason you'll be obsessing over a better core when your crappy factory IC starts leaking.