i am also still on thinking about a filter for the PEM blower.
@driver_EV you installed a self-designed Filter on the former Two-Blower design.
- What was your experience?
- How many miles/ km you used this solution?
- Did you let TM switch to the One-Blower design and did you add / keep your Filter with the new TM design as well?
> Funky ideas, people
Tesla has done all the hard work for us- in the form of the "panel blower surround" box. To achieve any sort of effective air filtering we have to install this piece. And whatever fan/blower/rollbar goes with it (there are 3 different styles depending on model of Roadster).
The box can be sealed 100% with expanding foam injected into all cracks where air is now entering. Then a 4in dia hole can be drilled into the trunk floor, and all filtering handled within the trunk.
Or, holes could be drilled across the rear of the box and 'cabin air filters' installed somehow to cover these holes. The 2.0 box is 26in across so there is plenty of room.
Or, only the bottom openings are sealed with liquid foam, leaving air to enter only over the top edges of the box. Then a filter shelf could be fabricated that might contain 2 or more of these 'cabin air filters'. They could slide out to the rear, if the grill were removed (or hinged out of the way). In the Olds Oddyssey, etc they reportedly are mounted on slide-out frames. Check your local junkyard or GM dealership.
The cabin filters filter 100% on one pass as opposed to the home furnace filters which only partially filter, but on constant circulation.
I was told by the service manager and the ranger that the fan upgrade is not for 1.5 models. That said I have not seen a problem with my Roadster until the temps hit 100+ a rareity for our area. At that point I did go into power limited mode for a while, but I was assured it was "normal". I did add some baffels to keep dirt from the reat tires out of the fan area. The Ranger said it could not hurt and the fix was under $10 so it is worth a try.
Sorry about the delay in responding, I have stopped getting emails on the TMC comments, and just saw this, as I was planning to update with my results.
Around 9000 miles running with my filter modification. I do not have exact figures handy, but I think it was near 5000 when I did the mod, and then a blower upgrade (to latest) was performed after 14,000 miles.
So the Rangers came and did the blower upgrade, removed my filter material, and installed the latest blower hardware.
Pics. of the dirty filter material that was removed, indicating all the leaves, dirt, stuff, that did NOT find it's way to the blowers nor the PEM:
And here is what the PEM looked like when they removed it prior to cleaning:
As you can see just a very light fine dust got through, but not enough to cause any temp issues yet.
The blowers were protected as well of course, so this was a successful project.
I now have the latest version PEM blowers, and have not put anything extra back in there.
Car has been running like this for going on 4000 miles now without issues, but temp power limit due to PEM being too hot, still has happened on occasion this summer.
I definitely think it was worth doing. The new blowers are louder, seem to be working harder, and I think did improve the PEM cooling some, but IMO air cooling is not the best solution for cooling the PEM. If an liquid cooled PEM is offered in the future, it would be pretty desirable.
I think I will "wait and see" if the latest configuration needs any help in the filter department.
Last edited by driver_EV; 10-10-2012 at 07:09 PM.
I shudder to think what mine will look like in a month or two. (annual service, or rather 6 month but +12500mi service)
If it is worth doing, it is worth OVER doing. - Mythbusters
Debunking Pseudoscience is fun!
Arctic White Roadster 2.5 #1200, S Sig Performance Vin# 227
There are currently 1 users browsing this thread. (0 members and 1 guests)