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We've had a few customers coming in complaining about high track oil temperature on their GTRs so we went to work in developing a part to combat the issue. Oil Cooling on a high output turbocharged motor is a priority in a good on track system and we took a unique approach compared to other offerings on the market.

The first thing that sprung to mind was how the usual Denso style cooler is a disaster in terms of efficiency and even with a fairly large 9in height it was still only a 15 row design. For our cooler we went with the industry standard in race car cooling with a Setrab/Earls style core over an inch in height taller than the factory core. Between the increased fin density and additional height the Boost Logic oil cooler more than doubles than factory core count. Next we approached another design flaw in the tight radius bends into the core, these bends limit the flow through the core before the engine has to bypass oil around the cooler to maintain pressure at the engine, with full-flow 12AN nickel plated fittings more oil will be allowed to the core before the engine bypasses the inherent pressure restriction. All of these issues had to be solved while maintaining a 100% bolt on installation and the factory ducting for a quick and easy install.

-Larger more efficient core
-12AN radius inlet and outlet fittings
-High quality Russell fittings and lines
-Bolt-on supplied with all necessary brackets and hardware.
-OEM location and ducting

Here you can see how we had to capitalize on all the available space we could the hose comes forward into the space over the duct and loops back around to the factory lines behind the cooler.


Stock oil cooler looking sad in the background


Factory ducting, your OE ducting hanger will need to be slightly modified.


We're expecting retail pricing around 1499.00 and we have a kit going onto a weekend track car very soon for on track testing.
 

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nice one more parts please BL! Goodluck
 

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THANK YOU!

This is EXACTLY the kind of kit I was waiting for. VERY anxiously awaiting your results!

One question - is there and/or what is the difference between a Setrab core and a Earls core? From what I could find it sounds like Earls and Mocal are basically the same? And both of those are slightly different designed cores than the Setrab unit correct?
 

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Certainly looking forward to the results.
 

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It will be interesting to see how much improvement this cooler provides in terms of lowered oil temperatures over the OEM oil cooler.
this could provide good benefits to upgrade the HKS and Greddy 's trans coolers too?

the 34 row earl/mocal/setrab cores seems to fit great in those places, and relatively cheap.
 

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Discussion Starter · #11 ·
One question - is there and/or what is the difference between a Setrab core and a Earls core? From what I could find it sounds like Earls and Mocal are basically the same? And both of those are slightly different designed cores than the Setrab unit correct?
The core designs are all the same, I wouldn't be surprised if they all came out of the same factory as well. The only difference between the three is the fitting style, Earls happens to be a female AN fitting that makes things a little easier also they're available in black like the Setrabs so production pieces may be black.

this could provide good benefits to upgrade the HKS and Greddy 's trans coolers too?
The premise is the same for sure, we haven't looked into that yet since the HKS kit is already such a good upgrade right out of the box.
 

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The core designs are all the same, I wouldn't be surprised if they all came out of the same factory as well. The only difference between the three is the fitting style, Earls happens to be a female AN fitting that makes things a little easier also they're available in black like the Setrabs so production pieces may be black.

The premise is the same for sure, we haven't looked into that yet since the HKS kit is already such a good upgrade right out of the box.
Is your cooler larger or in any way more efficient than the AAM replacement engine oil cooler?

Bish
 

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Discussion Starter · #13 ·
Is your cooler larger or in any way more efficient than the AAM replacement engine oil cooler?

Bish
We'll have to see after testing, Our cores are the same but we went about the ducting differently and we're not going to use a fan since in our experience they hinder more than help at track speeds.
 

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Will this be like the AAM without the fan?
 

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What is required to see how this or any other cooler works is a data logger trace over 7-8 laps on the same track, same driver, same car, similar ambient of the oil temp with OEM and then with the improved cooler. That will show if temp is stabilizing, or keeps rising, and exactly how many degrees of temperature reduction is being provided.

HKS provided this chart for their DCT cooler for both transmission fluid and coolant temps and it makes a world of difference in evaluating the performance of a cooling solution.



Since this cooler is getting the same airflow from the same inlet and outlet conditions as the OEM, it can only provide a nominal improvement over the OEM core, as the cooling comes entirely from the airflow. The benefit would be slightly more oil flow due to lower flow resistance in lines and possibly through core, and a possible improvement from the core's cooling efficiency compared to the OEM one.

Until manufacturer's of cooling kits provide similar data logger traces to the HKS ones for their product offerings, it is going to be difficult to get a handle on the price/performance ratio of the various solutions. I bought the HKS solution based on their chart, and unlike some products' (not talking about BL here) claimed temperature drops, the HKS product works as advertised.

Nice solution in terms of maximizing the OEM design's possibilities.
 

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Discussion Starter · #20 ·
Are those AN fittings aluminum or steel? I don't want to have to re-buy them in aluminum to save the unnecessary weight...Thanks!
They're nickel plated aluminum, no weight difference over a standard fitting and way more durable.
 
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