Yet another Accusump Install - but different
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. http://986forum.com/forums/uploads01...1330262209.jpg 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. ]http://986forum.com/forums/uploads01...1330263657.jpg http://986forum.com/forums/uploads01...1330262761.jpg 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. http://986forum.com/forums/uploads01...1330264195.jpg 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 |
Very nice write up, nice and clean under there as well. Thanks!
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Nice work!!! I like the location. I am considering the manual handle when I do this. I would like to the handle under the dash though
I suppose the even the switch conrolled solenoid valve is too slow to fill. |
Thanks guys.
Regarding the manual valve handle, I tried and tried to find a path to get it under the dash, but the only way I saw to do that was to drill a hole below the center console. If you do that, please post where you drill through - I might decide to try that some day. Oh, by the way, I started the Accusump up for the first time today, and found I was making about 45 psi pressure at idle with warm oil (about 200 F water temp). This was way more than I expected at idle. I had one slight oil leak - it turns out the Canton guys had not installed the safety relief valve with any teflon tape, and had not tightened it very well. |
How about following the route of the shifter cables and then the drivers side under consol ,exit out the back of the centre consol; loop up and around to under the steering wheel....perhaps mounting on the crazy bracket there.....for manuals I think
Just an idea haven't tried it myself |
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Thanks, |
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Thanks Steve |
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I never had any problem with the long filter, but have since changed to using the L&N aluminum filter housing with the washable filter. That filter does not project below the oil pan. |
Awesome, thank you!
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So are you able to tell the is an improvement on the track?
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Pedro had an Accusump fitted to his Track Boxster.
He replaced it with a Technosump. You can read about it on his site: Make it your own Technical Article by Pedro |
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It stayed above 20 but it still dropped. If it is from sucking air, then I wonder if a deeper sump can provide oil and prevent/postpone this. |
Not original ideas of mine - just re-hashed for a speed read.
When the oil 'sloshes' around in turns it climbs vertical surfaces.The oil gets foamy because of the whirring mechanicals it collides with.Think whisk? The oil climbs high enough to leave the oil pickup sucking oil foam. So the pressure drops. The liquid-oil level also drops even after the engine sits for a while. All those bubbles need to coalesce and burst before the level is restored. Having a deep sump+extended pickup + a well designed horizontal and vertical baffle keeps the pickup submerged.It should also reduce the 'climbing' problem. Why does the oil foam so much? because it has way too much detergent in it for the M96. There are low foam oils which may be better suited to this driving situation than the usually recommended oil. This has been discussed at length before. If you run a +2qt. deep sump and the oil 1/2 way between max/min that should also prevent the AOS becoming 'swamped'. disclaimer- I am not an expert in this subject but have already made all the mods I mentioned to my M96. |
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Steve |
Hey Steve - ironically, I just changed the location of my manual valve lever a few weeks ago, and brought it up next to the drivers side seat belt latch. I got tired of reaching around behind the seat to pull the valve handle, which was especially difficult if I forgot to open the valve before getting belted in the car.
I had to fabricate a small aluminum bracket which uses two small sheet metal screw into the center console to hold the lever in place. I hated drilling in holes in the console for that, but they are down very low, and covered by the seat belt latch. I'll try to take a photo when I have time. Quote:
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Sweet! Looking forward to the pictures.
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I was previously thinking that I had fabbed a special bracket for this, but when I took these photos, I remembered that I ended up just buying a couple of 1/2" cable tie anchors they sell in the electrical dept. at Home Depot: http://986forum.com/forums/uploads01...1458174694.jpg http://986forum.com/forums/uploads01...1458174749.jpg |
That looks pretty good and not obtrusive at all.
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I just had a thought... What year is your car? I have a 2000 and my fuel filter is in that tunnel... Were you able to fit around it, or do you have the fuel filter integrated into your fuel.pump?
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