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Discussion summary
YOUR RESEARCH996 skid plate?
Leading reported evidence
Run sideways along the bottom of the sump plate
Performed · outcome unconfirmed
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Performed · outcome unconfirmed
When the flow slowed, however, some of the oil ran sideways along the bottom of the sump plate, then down onto the top side of the skid plate.
Leading evidence: 'Run sideways along the bottom of the sump plate' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Recommend i consider adding a skid plate' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.
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I'm running V3 coilovers with the car almost on the ground and fly over speed bumps with no issues.
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Suggestion · Original poster
I have the PSS9's lowered pretty low and since I have some scratches on the sump my mechanic recommended I consider adding a skid plate.
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Suggestion
I take it off when I do oil changes (3 bolts) - otherwise I seem to dribble a little oil into it and it gets extra messy.
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Suggestion
I had the Porsche protection plate on my car but I left it off after a recent oil change because I read somewhere that the engine runs cooler without the plate.
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Suggestion
It does seem as though my car is running cooler without the plate although it is hard to say for certain as the outside temps have been getting cooler since I removed the plate.
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What does anyone here know about a skid plate for the 996 3.4 or 3.6? I have the PSS9's lowered pretty low and since I have some scratches on the sump my mechanic recommended I consider adding a skid plate. He says Porsche makes a factory one.
Has anyone else added one?
Is that the same as the engine protector plate? If it is, I added it when I changed the stock suspension to the x74. The entire system was Porsche. Carnewall is the place where I ordered everything.
You can get the Porshe one at Sunset for about $80 or so. There are some aftermarket ones that are heavier duty, the Porsche plate is pretty thin aluminum.
I assume that you're talking about the back end. Wow. You must be REALLY low to need that. I dealt with the issue up FRONT with one from Performance Product, just to protect the vulnerable front end. I've never found an issue in the back.
It's pretty common to get scrapes on the oil pan if you don't have this with the PSS9 suspension, or any other aftermarket suspension with lowered ride height.
I had PSS9 and I also got some scrapes on the pan, so I got the Porsche skid plate. Then that got dented up...haha...so it's off right now.
Funny, so you add the protector plate and then that gets all dented up and scraped. I suppose that's better than the oil pan itself. I'll give it a shot. Thanks for the info.
Yeah, except your car looks about twice as bada**
Very sweet. Love the cup wing and factory aerokit.
I actually had to take the yellow lamin-x off because it was a bit dim driving at night. I loved the look, but just wasn't practical enough for night driving.
I have the skid plate. Seems very straight forward and is a good idea.
I take it off when I do oil changes (3 bolts) - otherwise I seem to dribble a little oil into it and it gets extra messy.
+1. It creates a mess when you're changing your oil. And it actually blocks the rear jacking point if you choose to use it to lift the car. I got sick of taking it off for every oil change or every time I wanted the car in the air and eventually just bent the skid plate with the jack so that I could jack the car with the skid plate still on there. (best of both worlds)
My car was pretty low and it never once scraped the skid plate? I had pretty stiff springs in there though.
Andy
+1
http://www.e-partssales.com/miva/mer...e=996EXHAUST36
First Mod i did, before i even did the Suspension... Took me 3 Oil Pans on my VW 1.8T before i spent some $$$ and got a Skid Plate for that
I had the Porsche protection plate on my car but I left it off after a recent oil change because I read somewhere that the engine runs cooler without the plate. It does seem as though my car is running cooler without the plate although it is hard to say for certain as the outside temps have been getting cooler since I removed the plate.
pdobbs, if your still looking to buy a plate I'll sell you mine for little cost. It is the genuine Porsche plate including the 4 mounting bolts. The plate is in good condition overall with minor scrape marks.
+1
Why does it not make sense that something that is partially covering the engine would not help trap the engines heat thus making the engine run at a higher temperature? It is also possible that it blocks airflow to the underside of the engine and hampers cooling in that way.
Don't get me wrong, I am not saying that this is definitively the case. I am simply saying that my car SEEMS(read: my basic observation) to run cooler since I removed the plate. Before removing the plate my coolant temp regularly climbed above 100 Deg. C, as measured by the cars HVAC system, especially when driving in traffic. Now with the plate removed, my coolant temp rarely climbs above 100 Deg C even in stop and go traffic.
Although, even if the plate does occasionally increase the operating temp of the engine, the protection it provides may well be worth it.
JMHO, but the aluminum plate partially covers the oil pan, not much more. Does some heats escape the oil through the oil pan, I'd have to assume some does, but I doubt it impacts with any significance the cooling/heating of the oil and engine; the oil is cooled through a heat exchanger after it is collected from the pan anyway, if I read the drawings correctly.
Wish I had known this before I did my first oil change. Left the oil to drain out of the hot engine for the suggested 20minutes. On return, the oil was dripping off the skid plate, not into the container. Lost about 1/2 qt onto my driveway.
Thought I had cleaned up, drove the car off the rear lift only to drag another oil trail into the garage. I then freaked out thinking I had broke a line or cracked the filter case until I saw it was old black oil, not the fresh Mobil 1 I had added.
What a mess.
I will try and remove the plate next time
Yah it is a good idea if you can't angle your approach to some speed bumps or entryways to a place like the motorcycle dealership I drop into some times. Some entrys made for high water flow will tilt the back into the ground pretty ugly. I didn't like the first or second time I dragged butt into the place. Hopefully never again.
This fellow never hit the sump either. His wife did, but it's ok because she drove it most of the way home to tell him about it.
"My wife knocked a hole in sump in school car park while fetching kids .She drove home and on the way engine cut out and would not start. After towing car to Porsche they quoted for a reconditioned engine and thankfully our insurers have agreed to pay.Car is a 99 C4 Cab with 75K.
Does anyone know if the engine would be to the newer spec with improved seals etc?"
I removed mine when I converted to a track car. My car on PSS9's sat so low that it scraped every driveway entry and speed bump (as you can see from the photo). Let me know if you want it, $55 shipped. I think Suncoast list for $99.99. Any yes it best to remove to change the oil. It's used but not bent.
What I did was cut the opening quite a bit larger. you can do like a 3 -4 inch
diameter opening and you shouldn't get any oil to drip onto the skid plate.
Remind me never to buy a lowered Porsche from one of you guys. I have seen everything now. Or have I? So a stock Porsche is like High off the ground? Cheese and Rice and then you wonder why the car bottoms out and you need a skid plate.
You guys should run headers then bc they sit lower and will scape first and not cover your cooling area of the pan. If an oil pan wasn't designed to keep the engine cooler then why'd they use aluminum?? They use it bc it disipates heat faster than steel and no it's not bc it will be lighter than a steel one. If you like the skid plate idea then run some vents in it like I've seen on other properly designed ones. Steel deforms a lot more than aluminum before it cracks. I'm running V3 coilovers with the car almost on the ground and fly over speed bumps with no issues. Cincinnati streets and neighborhood curbs aren't that friendly.
My car does not run noticeably hotter with the skid plate. I've had it one for almost 2 years. This also include a hot track day at willow springs.
I wouldn't worry about heat being an issue unless you lived in the desert.
That's my $0.02
sean
Handy-dandy link to the OEM skidplate:
http://www.suncoastparts.com/product...e=996EXHAUST36
Also, if you think having a skid plate is going to contribute to increased engine temperatures, you need to put the crack pipe down.
Engine Protection Skid Plate
Code: 99610798100
Bottom of the Turbo engine is much different. With no oil pan there is more clearance. Have you hit yours?
FVD pan
http://www.suncoastparts.com/product//FVD20798801.html
I have a 2003 996.2. I scraped my oil drain plug driving through a campground in Yosemite and want to avoid damage in similar situations in the future.
I bought the Porsche skid plate from Suncoast Parts (their part number is 99610798100) for $125. The plate has four holes. Two of them lined up perfectly with pre-existing bolts around the sump plate.
I had to flatten one of the flanges on the skid plate, drill a new hole in the right place, then rebend the flange.
There is a fourth hole in the skid plate, which lined up with a solid chunk of aluminum on the block, so I drilled and tapped a hole and put a fourth bolt of the same diameter as the others in.
The plate sits 1/4 to 1/2 inch below the sump plate. This allows a little air flow. It also allows the plate to bend some when hit, without contact to the sump plate.
I recently performed my first oil change with the skid plate on. You're not supposed to need to remove it. In my case, when draining the sump started, the high oil flow went right though the middle of the hole in the skid plate as expected. When the flow slowed, however, some of the oil ran sideways along the bottom of the sump plate, then down onto the top side of the skid plate. This led to a few tablespoons of oil being spilled out the side of the skid plate. I cleaned everything up, went for a test drive, and found that about half a cup of oil had collected and was dumped out when I accelerated and turned.
In an attempt to prevent this the next time, I got some 1/8-inch aluminum sheet metal, cut a hole larger than the ridge around the hole in the sump plate, and screwed it onto the sump plate.
Top of skid plate showing the 1/8" aluminum circle
Bottom of skid plate show the heads of the screws
I'll report later on whether this worked.
I found a scrap of rubber hose in the garage and cut it about 2" long. Allen socket fits up and the drain bolt now falls directly into the oil catch pan, no need to fish around on the skidplate for it anymore!
How has this skid plate mod worked out for you with oil changes? I like the idea of cutting a larger hole to avoid messes with oil changes. My car is pretty low, so I think this would be a good investment.
Thanks. What is the purpose of putting the extra plate around the hole? I am thinking of just cutting a bigger hole without the extra plate that you screwed on.
Do you jack your car up only by the rear for oil changes? Is the car at an angle where the fluid need to drain at an angle?
Oil draining from the hole in the engine can miss the hole in the skid plate, flow sideways, and come the sides of the skid plate. Adding the circle of sheet metal collects this oils that misses.
When I change my oil, I drive the front and rear wheels up onto "ramps" of two or three 2 x 6's stacked up. This gives me just enough space to get the oil-collection pan under the car. The car is close to level, but not perfectly.
If you don't already have one, I recommend getting the LN Engineering magnetic drain plug.
Okay, I see, I thought you cut a larger hole in the plate itself. Is there a reason you did not just cut a larger hole?
For the screws, did you use short screws the right length or did you grind off the excess?
I just got a magnetic drain plug.
I felt like keeping the drain hole small gave the engine better protection.
For the screws, I started with short screws and filed them down a little bit.
