sweanders

I had a ride in a friends 1995 993 today and he has a stock oil level meter, now that is one thing I'd appreciate to have in our cars.

Anyone who knows where to get one of those and how to mount it?

Jim bailey - 928 International

It fits in the Oil tank in the fender ...the one for the dry sump oiling system . The oil storm going on in the 928 oil pan makes it very, very hard to measure a "level" ........... Your current low oil level only works with the engine not running .

sweanders

Ok.. Good thing that you told about that it only reads when the engine is turned off since I didn't know this before.

Is it possible to fit a dry sump to a 928 engine?

Jim bailey - 928 International

to fit a dry sump system you need to locate an oil reservoir tank tall 2 1/2 , 3 gallon somewhere and find a place to put an external oil pump in a position which allows you to drive it with a belt from a pulley on the crankshaft . Race car you would hang it where the smog pump /ac compressor used to be . You need a custom oil pan with drain fittings for the suction from the scavenge pump ....... no small task but assures a constant supply of oil to the pressure pump .

sweanders

Would this solve the oil starvation problem discussed in a recent thread?

drnick

jim,

it dosent sound like that big of a deal, what am i missing??? and why do some people say it would cost thousands?

Jay Wellwood

Maybe the area of real estate they are working in? The tight quarters in the 928 engine compartment comes to mind....

Jim bailey - 928 International

the parts add up quickly ....pump $500-800 , tank $300-500 , custom mounts , custom fabricated oil pan (hundreds) , custom crank drive pulley , several fittings and hose $$$$ , modified breather hoses ......time fitting all to the car . But yes it eliminates the question of hard cornering uncovering the oil pick up .

tuk_928

Jim et al.,
what does the GTS oil pan baffle buy us plebians who don't wish to convert to dry sump ? The PO of my car installed this inexpensive baffle in my car. I haven't read the archives on this yet but will do so....only a 1-2 sentence primer requested. Thank you.
TUK

ps.
also, what are "pattycakes"?!

WallyP

"Pattycakes"
1) A children's game of clapping hands.
2) The name of one particular 928.

Jim bailey - 928 International

comes under the heading of it probably does not hurt anything ........ tries to keep oil down near the pickup under acceleration. Imagine a dish pan 3/4 full of water sitting on the passenger floor as you brake , corner , accelerate if you put a lid over the back 1/2 it may help some to keep it in the pan .

tuk_928

WallyP,
I thought that was the case...just wanted to check-in. Pattycakes is the NAME of someone's 928. Got it.

Jim,
Wonderful description of the 928 oil pan baffle...many thanks! I doubt I'll ever need it...GaryT (the PO of my s4) probably had JoelR (Northpointe Auto in GA) install it when he had the oil pan off to replace the gasket. The baffle itself is a very inexpensive part from what I gather.

Best regards,
TUK

Jim bailey - 928 International

Yes $12 and worth every penny !

Z

The GTS baffle doesn't really appear to do too much of anything as far as keeping the oil in the sump under hard acceleration or cornering. In my opinion, it was added to the GTS to try to help shield the oil in the sump from the huricane blowing around with the rotating assembly. The increase in displacement in the GTS came from a longer stroke. More air displacement up above the pistons also means more air blowing around below them. The longer stroke also means that there are higher average piston speeds at the same RPM when compared to the shorter stroke, so with the GTS you're blowing around more air faster in the crankcase.

Jim bailey - 928 International

Z has a good point , Porsche even added windows at the bottom of each cylinder for the GTS to allow air to transfer forward and back to adjacent cylinders well above the oil level and pan . Real race cars use screens and scrapers to keep oil drops from bouncing and to cut off the oil sticking to the crank . The big advantage of the dry sump system is getting all that oil away from the crank , dumping it into a long tall can where it can foam and fizz on top but drawing off nice liquid oil from the bottom to feed the engine .