Accusump on R33 GTR oil pressure accumulator

Fastlane · September 10, 2021

After installing an Oil cooler I want to protect the engine when starting by supplying the turbos and all other components with oil before starting.

So I purchased an Accusump form Canton Racing

It choosed the smalest 1QT accusump and the Electric valve #24-271X

After 8 Month of use I am absolutely thrilled. It works absolutely perfect. Before starting, switch the ignition on for 5 seconds until the oil control lamp is off. I was initially concerned that the pressure in the memory would decrease over a long period of time as I do not drive the GTR very often, but that is not the case. Even after 5 weeks, the pressure in the accumulator is the same as on the first day. For safety, there is an oil pressure switch on the valve that opens the valve when the pressure in the engine drops. The 2QT memory is recommended, but because of the limited space in the GTR, I have chosen the smallest with 1QT. For everyday use and from time to time on the racetrack, that's completely OK.

The installation is simple, actually. The line is connected with a T-piece between the oil cooler and the engine. Electrically, I have a switch to turn it off so that when you turn on the ignition for other reason than to start, the memory is not emptied. The problem is the space, I wanted to keep the oil line short, so I put it under the headlight. The good thing is you can see the pressure gauge through the side wall opening and and you can fill up the air pressure too. But you have to move the tire valve and the pressure gauge upwards at a 90 ° angle. Actually, you should install a Checvalve towards the engine to prevent the pressure from flowing off via the oil pump. Unfortunately, there is no room for that at my installtion. The pressure loss is probably very low because it works that way.