Hello everyone,
We have had alot of questions about both the Stillen Oil Cooler kit as well as the Nissan Motorsports unit. The biggest question everyone has been asking us here at Z1 Motorsports is why the Nissan Motorsports unit costs to much more in comparision to the Stillen.
I figured the best way to explain why there is such a difference between the two respective companies kits, I would just do a piece by piece comparision.
The primary thing you will notice about the Nissan Motorsports Kit is that the parts are designed to flow and hold a much larger volume of oil.
Lets begin:
The heart of the oil cooler is the Heat Exchanger itself. The smaller Stillen unit of the Left is nearly 1/2 the size of the Nissan Motorsports unit. Both kits use Setrab Oil Coolers.
The next biggest difference between the two kits is the Oil Line sizes. Both kits use high quality AN Fittings with Stainless Steel Braided Lines. The Stillen Kit uses a smaller -8 (1/2") size line where the Nissan Motorsports uses a larger -10 (5/8") line.
The Oil Filter Sandwich adapters is the last of the major differences between the kits.
The Nissan Motorsports Kit comes with an awesome looking Machined Aluminum piece with smooth flowing channels and machined Heat sink fins.
The Stillen Sandwich Plate Adapter is a cast aluminum piece with a larger oil galley and includes a By-Pass ball in the event that the Oil Cooler gets clogged. The Stillen unit seems to be of either an Earls or Perma-Cool design.
We opted for the larger capacity Nissan Motorsports Unit for our 370Z Project car. Since the car will be driven alot both on the road and on the track, we felt it would be worth the investment of a larger oil cooler.
The Oil Cooler kits are priced as follows:
Stillen - $426.00
Nissan Motorsports - $795.00
The choice really comes down to what the car is going to be used for. If the vehicle is going to be used on a track alot, then I would recommend the Nissan Motorsports Unit over the Stillen.