ASR Oil Pans ~ Australian Specialty Racecraft
ASR are the most experienced Oil Pan Designer and Manufacturer in Australia, they Design and Fabricate all the Oil Pans completely In-House.
ASR manufacture Performance Oil Pans and Components for other leading brands in Australia.
ASR has a full range of Oil Pans for all aspects of Street/Racing/Exhibition Burnout and other high output applications.
Custom built Oil Pans can be fabricated to meet any of your specific requirements.
The problems start when modifying engines for more performance, the obvious result is higher RPM capability. The standard OEM Oil Pans can be totally drained of oil as RPM limits increase.
A crank spinning at 6000 rpm is turning one hundred times each second. At that speed the crankpin in an engine with a 3.5 inch stroke will be traveling in a circle at almost twenty-eight metres a second. If you think about how fast that is you might start to get an idea of what happens to any oil sitting in the pan. The pan capacity, if not increased, is insufficient for the increased demand at higher RPM.
The main benefit of enlarging the lower section, from which the pick-up draws oil into the system, is to increase overall capacity. For a mild engine this is usually enough, but as engines move past these limits Oil Pans need more modifications to the internals to keep up with the engines demand.
The spinning crank generates severe air turbulence and pressure in the Oil Pan. Such turbulence, or "windage", pushes down on the surface of the oil causing it to climb the sides of the pan. A windage tray between the spinning crank and the oil level helps avoid this problem by shielding the surface of the oil from severe windage pressure.
ASR manufacture Louvered Windage trays to control the oil coming off the crank and direct it back into the pick-up area of the Oil Pan quicker. A combination of enlarged oil reservoir and Windage Tray is the basis for our S/S series oil pans. Most S/S pans also have a crank scraper extending along the recovery side to prevent oil being pushed up the side wall by windage.
Vertical Oil Control (V.O.C.) Baffles are a standard feature to our Street Comp oil pans.
V.O.C. Baffles are placed in specific locations, acting as a barrier to help control oil movement in pick-up area.
Working in addition with the existing gates and mesh tray, the V.O.C baffles helps provide extra oil control under cornering, braking and acceleration.
An example of a enlarged lower section of our Oil Pans.
Our Multi-Louvered Windage Tray.
First, if the oil is not at the pick-up, it can't be drawn it into the system.
Second, as the oil leaves the spinning crank/rotating assembly and bounces off solid surfaces of the Oil Pan it is deflected onto the spinning crank where it creates drag and power loss.
Third, the longer the oil stays in rotation, the more it aerates and collects more heat. You mightn't think that liquid could be that much of a problem, but the speeds mentioned previously there is quite a lot of uncontrolled oil and the effects of it add up.
The Crank Scraper mentioned previously helps control some of this oil bouncing off the vertical walls and directs it back towards the pick-up area. A windage tray is used to control the oil that is leaving the crank/rotating assembly with the intention of directing it back to the pickup area
The most efficient way to strip oil from the rotating assembly in race level high performance engines is to use a mesh style windage tray. This is best achieved by using a Directional Mesh. A Mesh tray allows the oil to pass through easily, but makes it extremely hard for it to come back through because of windage pressure.
ASR fitted Crank Scraper.
The ASR Competition Mesh Windage Tray.
The movement of the car itself has an extreme effect on the oil around the pick-up. Braking, cornering, acceleration all force the oil away from the pick-up in different directions.
The idea is to control the oil around the pick-up. This is achieved by using trapdoor baffles or gates that can only swing in one direction - towards the pick-up. ASR positions gates in very specific locations depending on applications. For example, under hard braking any oil around the pick-up won't be able to flow forward because the front gates are closed by the G forces, and because the rear gates open towards the pick-up, any oil at the rear of the pan will flow forward through and accumulate around the pick-up.
The benefits are obvious, a constant supply of oil available to the pick-up during any maneuver no matter how sudden it may be. Another performance modification to oiling systems is the head of the pick-up itself. You'll notice the head of an ASR pick-up is small compared to an OEM unit. The problem is the larger the head the more likely it could become uncovered during use. Making it small increases the likelihood of keeping it immersed in the oil, limiting cavitation problems.
An ASR designed Pick-Up head.
An ASR designed oil control gate box.
The main aim of these modifications is to ensure the engine safety, but some of these modifications have shown considerable horse power gains and a substantial temperature reduction over other versions of Oil Pans.
Our Super Street (S/S) Pan is our entry level performance oil pan. Increased capacity and a louvered windage tray. It is suitable for mild street cars.
Our Street Comp (S/C) is the step up from the Super Street.
Increased capacity, control gates and a mesh windage tray is fitted along with the V.O.C Baffle Feature.
The S/C comes with an ASR Fabricated pick up.
This pan provides good oil control for engines that may see the track on occasion.
Our Engine Conversion Pans (E/C) are for car/engine combinations that are non-standard. In most cases the E/C will come with a ASR Fabricated Pick up.
Club Circuit/Comp Circuit
The Circuit range of pans includes the Club Circuit (C/L) and the
Comp Circuit (C/C).
These Oilpans are built for circuit race cars.
These pans have Higher Oil volumes, Extensive internal modifications for oil control eg; Gates, Baffles etc.
The pick ups supplied with the Circuit race pans are located in the optimal location.
The Drag Comp Pan (D/C) is designed specifically for Drag Racing. The internals are designed with the accelerating G-force in mind, positioning the pick up towards the rear and controlling the oil with gates and directional baffles, ensuring constant oil control.
The D/C is the best option for a High Power, low ET Drag Race Car.
The Comp Speedway (C/S) is designed for single turn speedway cars. The Internals are different depending on whether you’re doing Left Hand or Right hand turns, Like the D/C the G-force is considered and the internals are built to requirements. The Pick up is placed in the optimal location for best oil scavenge and surrounded by control Gates and Baffles.
Social Marine & Comp Marine
Social Marine pans are for ski/leisure boating with mild performance use.
Competition Marine (C/M) pans vary depending on the type of racing and drive type the Oilpan will be used for, whether it be Ski Racing, Circuit Racing, Drag Racing, Jet Sprint etc.