Ok guys this is to cover the overall installation of the 3 quart high pressure 22 inch long "tall boy" Accusump in the tunnell of the Boxster. There is a similar installation guide over on Planet 9, but that guy did a few things different than I did.
First, my goals with this project, which may be different than your goals,were:
1- I only intend to use the Accusump for track and autocross events. I am not to interested in pre-oiling due to the very few number of starts that I do (it's not a DD).
2- I like the simplicity of the manual valve for track day events, though the EPC version does have some advantages.
3- I was determined not to drill any permanent holes in the car, in case I or a future owner want to take it back to stock.
4- I wanted to get the air pressure gauge inside the car along with the air fill connection using a -4 AN hose, and then in the future it will be easy to add a dash mounted pressure gauge, with nothing to do under the car.
So, with that in mind, I made a frame for the Accusump to bolt to, that attaches above the stock supports for the water lines down the tunnell. This is a view of how it actually sits up inside the car. The black brackets in this photo are the OEM supports for the water lines.
The oil line route to a sandwich adapter at the oil filter is pretty short, and needs only a 45 degree -10 AN hose fitting on the Accusump end, and a straight fitting at the sandwich plate.
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I ran the manual valve actuator cable through the same penetration that the gear shift cables, after trimming the rubber grommet where they go through. The only hole that I had to drill was in the aluminum cover plate to bring the pressure gauge and air fill connection in behind the drivers seat. To return the car to stock, I figure this cover plate can be easily sourced from all the future dead Boxsters out there.
With this install, if you wanted to do the EPC valve instead, the aluminum support frame would need to be modified to move the Accusump more forward in the car, as those EPC valve trains look pretty long.
If anyone else decides to go this route, please post any improvements.
Thanks
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