I would run the gas through the intercooler the way a person would run water through a liquid intercooler. The exhaust from the intercooler would be run into the exhaust downpipe where it can cool the exhaust flow after the turbo. It would create a denser exhaust flow with less resistance to flow.

 

But what if you only need a little extra intercooling? Maybe you don't need the most efficient cooling media, but you're looking for the simplest, easily serviced, more compact solution.

 

I've watched a 400-cid turbocharged Nova run high 7s all day long in the quarter, on a hot summer day. He had a plastic ice cooler in his trunk '“ nothing fancy. Before each race, he would drain all but a few gallons out of the cooler. Then he'd dump in about 4 bags of ice. While everyone else was ingesting 110 degree air off the hot asphalt, his engine was ingesting 50 degree air, at about 3-bar.

Note that he can purchase ice at any gas station or grocery store in town.

Liquid Nitrogen is an industrial product. Suppliers are few and far between (normally not anywhere near a racetrack). Nitrogen suppliers will not sell the product without a DOT approved storage container to transport it. A large container is rather costly. Liquid nitrogen isn't exactly cheap either.

Here's the engineering:

One gallon of liquid nitrogen weighs about 3.059 kg. One gallon of liquid nitrogen will adsorb roughly 17.006 kJ of energy as it flashes into a gas at -195.79 degrees C. It will then adsorb approximately 213.94 kJ of energy as it warms from -195.79 degrees C, to 10 degrees C (about 50 degrees F). That's a total of 230.95 kJ of cooling, per gallon of liquid nitrogen.

A gallon of ice (H2O) weighs about 3.470 kg. One gallon of ice will adsorb about 1158.98 kJ of energy as it melts from a solid into a liquid at 0 degrees C. It will then adsorb approximately 14.53 kJ of energy as it warms from 0 degrees C, to 10 degrees C. That's a total of 1173.51 kJ of cooling, per gallon of ice.

Putting the above data into terms of BTU for comparison:

A gallon of liquid nitrogen will adsorb 219 BTU as it heats up to 50 degrees F.
A gallon of ice will adsorb 1112 BTU as it heats up to 50 degrees F.

Thus you will need five gallons of liquid nitrogen to remove the same amount of heat as one gallon of ice. This means you'll need a rather large nitrogen storage container in your car for each race, and a very large container staged in the pits for a day's worth of racing.

Use caution: If your nitrogen tank ruptures in a collision event, and the fluid is not fully contained in the trunk - you'll wish you were dead if that stuff gets on your skin - especially several gallons of it. Aside from severe freeze-burns, you could also die in your car from asphyxiation.

Nonetheless - I'm pretty confident that the intercooler will ice over half-way down the track, and the compressor will surge from the high DP. Air has a lot of moisture in it '“ even on what feels like a dry day. . .

Probably not a good idea. . .

 

X3 NASTY STUFF.

Put some Nasty Stuff in a beaker, drop a hot dog into the beaker, using tongs carefully remove the hot dog and drop it on the floor, watch the hot dog break apart into many pieces. Now imagine the Hot dog is you after a leak..

Tom Vaught

 

Dry ice seems like a better solution... but nothing beats ice per $.

 

I made an error in one of my calculations.

One gallon of liquid nitrogen will adsorb roughly 198.48 kJ of energy as it flashes into a gas at -195.79 degrees C.

This means that 2.8 gallons of liquid nitrogen has the same cooling capacity as one gallon of ice (H2O). . .

My bad. . .

 

Yes, I did a liquid nitrogen handling course ages ago , from our national industral gas producing company....
Nasty stuff, and silly to even think bout using it.

 

I've tried a/a, a/w, a/w with ice, etc..
From my experience nothing cools like injecting meth strait into the turbo itself. I've logged temps -50 from ambient in 100+ deg heat. Granted, I only use nitrogen for fitting parts/removal and never as a way to cool intake temps, but after working with it ,nitrogen would never be an option.

 

Is corrosion of the compressor blades a problem with injecting meth into the compressor? Corrosion of other parts in the intake tract? Intercooler?

 

Would you need an intercooler if spraying pre turbo?

 

Never had an issue with many street miles and 150+ top end runs. I used 100% meth for the best atomization.

As for weather ir not an ic was needed, can't say 100%. I always had once installed. My thinking was this, meth cooled aluminum in ic, so even for a few mins/whatever once I got back into boost it was still cooler than ambient before my meth started flowing again. Probably didn't really make a Damn but that's how I justified it vs saying the car looked funny with no fmic

 

You also did not add in the refrigeration effect of the nitrogen from the liquid to vapor flash to atmospheric temp. It is a long way from -320F change of state to real world +70-110 air temp. Secondary cooling do to this additional cooling all most doubles the amount of heat removed

 

Liquid Nitrogen! Could not get me near the stuff. Period.

As far as the trans/ clutch combos, I do not have a clue on the Buick engine stuff but will say that Buddy I. had the first "prototype "Doug Nash" type crash box 5 speed.
Course in those days Doug Nash was still a skilled trades guy (UAW) at Ford in Dearborn, Michigan and did not own the rights to the DN Trans yet.
The trans was designed for Buddy by 3 Ford Engineers for the Pinto Boost Program.

Tom V.