I was doing a search on google looking for tech info on water to air intercooling and stumbled across these.



http://www.lindseyracing.com/LR/Part...OLERTUBES.html



I was wondering what they would be like,It would be awesome to run a couple of these tubes to eliminate the need for a big lagy intercooler strait from turbo to throttle body https://www.nopistons.com/forums/pub...#>/biggrin.gif



any opinions on how effective these would be.

I dont know how comparable the pressure drop is to a traditional intercooler, but I will say this. The reason intercooler cores are designed the way they are is to increase surface area without reducing cross sectional area for the compressed air to flow through. But what I see here is a huge reduction in the cross sectional area available for flow. Id guess around 1/3 of the cross sectional area is now taken up with fins. Then you see the fins are perforated, which increases friction, slowing the air charge down even more than just the increase in surface area would. The reduction in cross sectional area increases velocity, which compounds the friction.



Traditional IC's increase the cross sectional area(most cases, but not all) to reduce the velocity, and therefore friction. The lower velocity also gives the air charge more time to shed the heat it accumulated while being compressed. Once the air charge passes through the core, the cross sectional area is reduced back to the original in the end tank, where the velocity goes back up.



All that being said, I remember seeing something similar on a jackson racing supercharger kit for the miata years back.

no 1st hand experience, but they do look good. especially for something like a t2 where you dont want to go front mount

What you saw was the PWR bottle intercooler which, as you say, increases the cross section of the tube to help increase flow that is blocked by adding cooling fins in the airflow.



http://www.pwr.com.au/

I emailed linsey racing to get some facts an figures on these intercooler tubes ill post it up when i get a reply.

If they do the job i would rather fit these then do all the plumbing for a large front mount intercooler.

and they have the look pretty trick factor as well

what about running something like this and instead of water you spray a high pressure gas through it say Co2? the drop in pressure would cause a large drop in temperature so long as one the case has open holes to release your pressure.