An Accusump is an oil accumulator that acts as a pre-oiler, and as surge control in a wet sump oiling system. A dry sump is the best way to control oil during high G situations, but that isn't always realistic for every car under every situation. After taching a few RB26 many years ago, King Motorsports installed one in a customers R32 GT-R. It was 2 quart mounted in the trunk with an electronic control valve that was triggered by a pressure switch. If you stick your head in and around enough cars, you will see these familiar blue cannisters from Canton, although there are a few other brands.
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| Test fitting a 2 quart Accusump in the trunk of an R32 GT-R |
You can control it manually, you can control it electronically. Some people use their ECU. Low pressure, valve opens. Pressure comes up, valve closes.
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| R32 GT-R front bumper and support FAST diagram |
I bought the 1 quart Accusump many years ago. My thoughts were to try and mount it in the front somewhere vs the 2 quart in the trunk. Less distance, less capacity, but then also faster fill and release as its closer to the engine. Once I got the Accusump, I started checking for spots it might fit, and the front bumper support sort of came as a possible. Now the downside is obviously if you hit anything, then you will have a big oil leak, but most everything in the front has water or oil in it, so not a deal breaker. I also bought a fiberglass bumper support from Japan. I figured if I had to hack anything up a bunch, the fiberglass would be easier to deal with.
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| Bumper and support off. Testing the fiberglass bumper support |
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| Testing location of the 1 quart Accusump |
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| Close to the fins |
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| Accusump in the front support, valve mounted in BOV area. Brake ducts |
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| Accusump in the front support, valve mounted in BOV area. Brake ducts |
If I had a larger intercooler, the Accusump wouldn't have fit in the bumper. A few other alternatives are possible in the front, like behind the lower radiator mounts
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| This control valve/pressure switch opens at 55-60 psi. I figured if I needed it I would be at high rpm/oil pressure. |
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| Older style valve mounted directly to the 2 quart Accusump |
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| R32 GT-R Nismo going down the corkscrew at Laguna Seca |
INSTRUCTIONS
Accusump Installation Instructions (PDF)
Accusump Cable Actuator Kit Instructions (PDF)
How To Install Your E.P.C. Valve Instructions (PDF)
How To Install Your Accusump Turbo After Oiler Instructions (PDF)
Related Canton Blog Posts
"Accsump Install Do & Do Nots"
"Importance of Accusump Valve Selection"
"4 pieces to install an Accusump Correctly"
Frequently Asked Questions
Accusump Accumulator Vs. Turbo Oiler models?
How does an Accusump Oil Accumulator work?
Trouble Shooting Your Accusump
Buy USA Legal R32, R33, and R34 Skylines at Toprank Importers!
Index and Start Page
Nissan Skyline Parts and Toys
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