ATR Liquid Intercooler

[postal]

As far as the ATR unit, the fin or cooling surface is VERY small inside the "box". Small and restrictive end tanks do not help either.

When you look into spearco's ratings the liquid IC's have a VERY low pressure drop across them around 0.18 psi @ 700 cfm. The large air to air front mount cores are usually closer to the 1.0 to 1.5psi @ 700 cfm. Yes front mounts are bigger, but the air has to flow through those long tubes.
The liquids are small because they can be. They are so superior at removing heat that a large one would be pointless.

The inlet air temp remains steady from the start to finish with a small increase only off the line.

What kind of charged air temps where you seeing with the air to air and at what boost level. Thats what I'm the most curious about. I would have a better understanding of the potential gain if I knew those temps.

Thanks: Jason

 

[Nick Micale]

Originally posted by postal
.... What kind of charged air temps where you seeing with the air to air and at what boost level. Thats what I'm the most curious about. I would have a better understanding of the potential gain if I knew those temps. Thanks: Jason

Temp about 105 deg in the plenum at 28 psi, 70+ deg day.

 

[postal]

Temp about 105 deg in the plenum at 28 psi, 70+ deg day.

Thank you for the info. Would you say that the spread between ambient and the charged air temps would stay about the same? Your approx temps show about a 30 to 35 degree spread. So would it be safe to say on a 90* day that you would then see 120 to 125* charged air temps? The 30 to 35* spread is actually pretty good. To get temp spreads much lower than that starts becoming impractical.

I'm switching to a big stuff 3 set up and will be moving my air temp sensor to the up pipe. I'm really curious to see what my charged air temps are through a run. I do know that after a run my cold air induction pipe is hotter than my up pipe.

Jason

 

[charlloots]

you guys have so much knowledge try getting some common sense were talking street cars lol

 

[Nick Micale]

Sorry I had to "edit" this thread, but think it was for the best.

It is a good subject for discussion, and unfortunately so few liquid I/C's on Buicks, not a lots of real world comparisons.

 

[TS6]

Good call Nick.

At my company, we deal with temperature transfer a lot. I can say for sure that air to water is better than air to air IF you can get the heat out of the water. Thats the challenge. For racing though, I think its obvious it works awesome. Those who have actually tested the unit seem to have no problems on the street. Seems the only downside is cost.

 

[charlloots]

Originally posted by TS6
Good call Nick.

At my company, we deal with temperature transfer a lot. I can say for sure that air to water is better than air to air IF you can get the heat out of the water. Thats the challenge. For racing though, I think its obvious it works awesome. Those who have actually tested the unit seem to have no problems on the street. Seems the only downside is cost.

this all you had to say the first time professor

 

[laz]

Nick i don't think you would lose 2-3 seconds maybe a few tenths .I remeber when we bought the atr t-type it only had 8 pounds of boost and it was the fastest street buick car i rode in at 13 pounds of boost it must have been a mid tens second car we put a precision frount mount thinking that little intercooler was was too small for a stage engine .The car ran at 200 degrees with the fan running all the time and we really did not notice any gain so i would not knock the atr liquid cooler to much .