Sandro

iTrader: (1)

Has anyone considered or used these before?

http://www.lindseyracing.com/Merchan..._Code=THPORING

- Sandro

anewconvert

iTrader: (1)

those are pretty badass.


BC

slo

iTrader: (1)

very cool, smallest footprint for somthing like that I have ever seen. I want to know how effective it is though.

Sandro

iTrader: (1)

Data Sheet shows impressive numbers. Even the small 8" seems to have a large heat exchange area (as compared to a traditional air-to-air) withnegligible pressure loss. It says 297 (sq in I guess) vs. e.g. 145 of the M2 medium. And water has much higher thermal properties (exch. coeff. and heat capacity) than air.

BLUE TII

iTrader: (9)

Looks like it would work better if they had some sort of turbulators on the heatsink surfaces.

On the airflow side, once flow smooths out from hitting the exposed heatsink ends it will have a thin boundry layer that doesn't exchange heat well. For this reason I would think several shorter units would work better than one long one.

On the coolant side, they just need to add something, anything to increase the surface area and ceate turbulence.

They look pretty...

anewconvert

iTrader: (1)

With the amount of protrusions into the tube my guess is that there is plenty of turbulence from the intake charge striking the face of those protrusions.


BC

TRRAPLN

Nice find. Compact size. Nice CFM rating.
I was going to go PWR barrel but now I need to re-think my system.

BLUE TII

iTrader: (9)

In an air to air intercooler there are many rows of tubes the air must flow through once it is in the end tanks.

This induces some turbulence, though turbulators are added inside the tubes in high quality intercoolers and greatly improve their efficiency.

Same thing with these ICs. Air flow will become turbulent as it enters the IC due to the leading edges of the extrusions, but will quickly smooth out as it flows along the smooth surfaces of the extrusions.

The turbulators in this case could be as simple as a 2ndary process done to give some surface texture or a twist to the extrusions. This would increase the boundry layer thickness and increase the amount of slower moving air available near the extrusions surfaces to transfer heat energy.

There is no excuse besides being cheap to have no turbulators or even increased surface area on the coolant side of these.

Like I said, they look pretty...

What is with the applications shown? A 944 w/ stock air to air intercooler in place and this added on. Why not upgrade the stock intercooler? Or if this product is so good, eliminate the stock intercooler.

Well, their IC won't hurt anything and it looks pretty...

They picked their statistics to brag about well. Large heat exchange area (in the airstream) and low pressure drop.

What about heat exchange area in coolant stream? What about simply listing some efficiency rates?

Sandro

iTrader: (1)

I tend to agree. Especially on the water side, it can't be more than 69 sqin (8" long and 2.75" ends) since there are no fins. I'll email them and ask if they have any thermal efficiency data. I'll keep you posted.

- Sandro

BLUE TII

iTrader: (9)

For compact, high efficiency liquid to air intercoolers check out the Laminova design.

http://www.alertmotorsport.com/intercoolers.htm

RXBeetle

The are bragging about a high surface area but that does not tell the whole story. Many of fins are long (reach far in toward the center of the tube) and the heat would have to be conducted a long distance before it can release the heat into the water. An air to air core has what .030" of aluminum wall it has to conduct through before it can radiate the heat to the air. Surface area AND the temperature difference (delta t) between the fluid (intake air) and the exposed heat exchanger surface are what determine heat flow.

Good point BLUE TII about the non turbulent flow, that would probably smooth the flow if anything, and a nice open center is where most of the air will flow through never contacting the heat exchanger surface. I'm not saying it is any worse than what they claim but some apples to apples comparison is the only way to prove it. Get some heated air source (water to air intercooler plumbed into a cars heater core lines) and pipe it through a good aftermarket intercooler and through theirs. Put a MAF at the end of the intercooler and maintain a set air flow for testing. Provide both with the same air flow to the heat exchanger and see which one drops the temps the most.

oh yeah... they do look purdy

anewconvert

iTrader: (1)

The problem with the laminova cores is that you eithe rhave to build a box around them that is air tight, or you have to modify the intake manifold to place them in there, and make it airtight. This THP thing can be integrated into an existing A-A setup.


That being said this is all talk until they provide some kind of data showing the performance of the product. You wont find me spending $1000 on product advertising just to test it against a known.

BC

TRRAPLN

More surface area is good.

Turbulators are often used to tumble fluid to creat better surface contact and increase thermal efficiency. Depending on heat exchanger design, and the dynamics of air, turbulators may not offer any significant improvement.

Thermal efficiency data, now your talking.

Anyone want to figure out the surface area of a PWR 6 x 8 barrel A2W cooler vs. the area of one of these? That would put you in the ballpark on efficiency.

This looks like a nice concept utilizing extruded aluminum design, multiport coolant flow and compactness.

Without data, we are the R & D pioneers.

Sandro

iTrader: (1)

They will have thermal efficiency data this spring. Will have to wait I guess.

- Sandro

David Lindsey <dlindsey@ionet.net> to me
Jan 25, 2007 6:52 AM

Sandro,

We will have that this Spring, but we don't have that yet.

With kind regards,

Dave Lindsey
LINDSEY RACING

----- Original Message -----
From: Sandro La Rosa
To: David Lindsey
Sent: Wednesday, January 24, 2007 7:41 PM
Subject: Re: E-MAIL FROM THP

David,

Do you have any thermal efficiency data? E.g. Air out temp given water and air in temp.

Regards,

Sandro

Christopher W.

iTrader: (2)

Anyone got any more information on this product. I would hope they have some data by now.

TweakGames

iTrader: (3)

I dont know about you... but even the water in my radiator is super hot ..... I think if I was to use something like this I would have a completly seperate loop, that has nothing to do with my stock radiator... Maybe that wouldn't been enough fluid I dont know. I am very interested in how the stats turn out though.

ronbros3

I have had water to air on my 87 since 1999, biggest thing is when i turn on the ciculation pump my MT standalone map goes to hell , it has to be retuned completly, it gets better milage cruising without the pump on, but i run low boost 12-13 psi pump gas, but if its go time then on with pump, YEAH! i need two maps, fwiw much richer pump on id say about 12-15% 17-18psi,oh i have the FD engine streetported. 62-1 /115 a/r turbine. Ron in Daytona