QIKSLVR

Has anyone had any experience with converting their 8qt dry sump to the newer 10½ qt dry sump? I am considering the change because at greater than 1.3 g's the bearings can become oil starved. And since I track the car using Hoosiers, I was advised that sooner is better than later.

I notice that the GM 10½ qt dry sump appears to have a different oil cooler compared the earlier Z's.

Was wondering if the older oil cooler must be swapped out in favor of the newer one when the oil tank reservoir is changed to the larger capacity reservoir?

Any comments would be helpful.

JoesC5

GM added an extra tank to the side of the main reservoir to increase the volume. All the Z06's use the same oil cooler except for the 2011 & 2012 which use the ZR1 oil cooler that is mounted to the side of the oil pan, and uses the radiator's coolant to heat/cool the oil. If you just want to increase the capacity, get a later(2009+) reservoir or a LPE modified reservoir(11 qt capacity system vs 10.5 with the GM reservoir).

double06

I did the conversion it takes about 2 hours. I did the LPE one and I have a 2006.

triblk6spd

Really? Only 2 hours? When modifying the Z NOTHING only takes 2 hours. Hell an oil.change normally takes me 3.

MTPZ06

Do the LPE mod...$300 is worth it.

QIKSLVR

Does the LPE conversion come with directions? If you completed the conversion in about 2 hours, I take it that fender removal was not necessary as it would be with swapping the older 8 qt GM reservoir for the newer larger GM product?

dun4791

What, if anything, is the difference in oil temperatures between the two systems?

edmundu

Hopefully the oil comes up to temp faster, cause the '06 I have takes a long time to get past 150 degrees....

I might need to add that I have 3 small children, and only limited periods of time alone with my baby...so wasting it waiting for the oil to come up to temps sucks!

JoesC5

I can't say what the higher limits are as I haven't tried the ZR1 cooler. With the older design(heat exchanger in front of the A/C condenser), it takes a long time to get the oil temps up in cold weather. 40 degree ambient and I have problems getting over 140 degrees. You won't have that problem with the newer ZR1 oil cooler. I have never had a problem with overheating with the oil style oil cooler. I don't think I've ever been over 225 degrees oil temp. and that was after some fairly hard driving around Talledega at 160+ MPH.

The oil pan on the ZR1 and later model Z06's have a couple of tapped bosses on the side of the pan(that the earlier cars don't have) in which to mount the heat exchanger. If you wanted to go with the later style oil cooler you would have to get the newer style oil pan or make some special mounting brackets.
I beleive that is what Edelbrock did(special brackets) to be able to use the newer style cooler so they could get rid of the heat exchanger in front of the condenser so they could mount the supercharger's heat exchanger in that location.

I don't worry about it, as I very seldom drive the car when the ambient temps are below 50 degrees.

Wulverine

I cannot think of any logical reason why an increase of capacity only will yield increased temps. I would think it would be the opposite.

GMuffley

Katech_Zach

I've done the conversion. It's easy. The only modification you have to do is tee into the vacuum line that goes to the valve covers to add the line going down to the vent on the secondary tank. Honestly that hardest part is wrestling the two tanks into the fender. I had to disconnect the clamp that holds the two parts together, then reinstall the clamp once they were in. It probably took me a couple hours if that.

The tank has nothing to do with the new oil cooler.

Since I did the conversion I switched over to an ARE Stage 3 system, so I have my old 10.5qt tank for sale.
http://forums.corvetteforum.com/c6-p...-complete.html

edmundu

I was referring to the newer style heat exchanger, that uses engine coolant rather than stacked fins/plates on mine.

edmundu

Can one use just the newer style exchanger, without converting over to the 10.5qt tank?

Would anything beyond the exchanger & lines be needed?

Katech_Zach

The cooler and tank are in different areas of the oil circuit. You can do one without doing the other. Of the top of my head you will need the cooler, oil lines, the different surge tank hose, and the fitting for the block.

edmundu

Thx Jason!

Minkster

This thread shows installation of both tanks:

http://forums.corvetteforum.com/c6-z...tallation.html

QIKSLVR

Minkster, thanks for the link

Minkster

QIKSLVR

In the process of installing the OEM '09 tank into my '07 Z and have discovered a problem. The '09 plumbing harness fittings that attach to the rocker arm covers are different. I purchased the '09 plumbing harness to make the install easy but it has become anything but. Any suggestions would be much appreciated.