Wheels55

Hi all, recently purchased a 2010 GS coupe m6, theirs a fair amount of info on the interweb but I have yet to be able to find production numbers for the cars that were built with the dry sump system. Any info or resources would be appreciated, thanks

2010 GS m6

LS1AB

I know all GS that weren’t auto trans or convertible were dry sump. Corvsport is a resource I use to find production numbers and RPO codes. Hope this helps.

HOXXOH

Try corvetteactioncenter.com and add up the production numbers for each year of GS coupes with the M6 trans.

Wheels55

thanks, great info, here's what i found, assuming all Grand Sport coupes that were not equipped with an automatic transmission;
2010 (1468)
2011 (1699)
2012 (1628)
2013 (1515)
for a total of 6694 C6 Grand Sports equipped with the Z52 performance package.

FatsWaller

If I add up the numbers you have in brackets, I get 6310. Where do the extra 384 come from?

Turbo6TA

Wheels55 ....

As others here have said ... You can't count all the C6 GS cars that have the manual transmission as having the dry sump system. No GS convertible (even if it had a manual transmission) had a dry sump system.

If you want to know exactly how many GS cars had the dry sump, you need to count only the GS coupes with the manual transmission.

All GS coupes with the manual transmission got the dry sump

FatsWaller

This article lists Z52 as a standard option for the GS, specifically having a dry sump and differential cooler https://media.chevrolet.com/media/ca...2011.tab3.html

There is a footnote (5) explaining that the option is deleted for the A6. The problem though is that they claim it was optioned on the verts as well.

Turbo6TA

Fats ....

I have never heard of, or seen a GS vert with the M6 transmission ever having a dry sump system installed from the factory.

FatsWaller

I believe you. That's why I said the article was problematic in that regard. I did see a couple of other articles listing Z52 as the code for the dry sump and diff cooler.

Turbo6TA

To tell you the truth, this is the first time I heard of the RPO-Z52 ... much less that it is supposed to be a dry sump and a differential cooler.

Learn something every day.

Wheels55

You are correct, should have double checked my math, the number should be 6310 but not certain all m6 coupes came with z52 pkg. Thanks

dkpnkc

What about Z06 / ZR1's? Or is this only about GS?

Wheels55

I only looked at resources containing info on 2010 thru 2013 Grand Sport coupes, as far as I know all ZR1's and Z06's have the same dry sump system.

HOXXOH

Z52 is the RPO code assigned to GS Coupes as standard equipment. Description is: Performance Package, includes the dry sump oil system, rear mounted battery, and differential cooler. Z52 is deleted when ordered with the A6 trans. (as printed in the ordering guide)

So ALL GS Coupes with M6 trans had the RPO Z52 as standard equipment.

Old Country

I have a 2010 Vette GS M6 (attached). I did a TON of research regarding this oil system prior to buy my GS, as I knew virtually nothing about it. Wow what a neat system! According to all of my notes, one fact held true = ALL C6 Corvette Coupe Grand Sports with an M6 came with a Dry Sump oil system. I have found nothing that indicates or states anything contrary to that, but I would welcome any new factual info if presented. Unless you're tracking your car or often hotrod it, the system is actually a bit overkill for just normal street driving - BUT it's awesome to have just the same.

Turbo6TA

I guess the dry sump system is ok ... if you like buying 10 or 11 quarts of oil for the car every time you do an oil change.

Turbo6TA

Oh, and if your one of those people that don't change oil yourself ... be damned careful you pick the right place to get your oil changed because half these guys that will be doing the job don't have a clue as how to properly do an oil change on an LS engine with the dry sump system ... Fact

Wheels55

Yeah, I have trust issues when It comes to having others service my cars, I will be doing my own maintenance. Good point though, if only one drain plug is pulled as in a regular service, I imagine bad things would happen, not concerned about the price of oil, mobil 1 is pretty reasonably priced at the local xmart. Thanks

h8snow

M6s got forged crankshafts.

Old Country

Anyone who knows anything about performance engines KNOWs a high capacity Dry Sump system with its standard high volume pump, is a vastly superior oil system to the standard wet sump 6 qt system. AND anyone who'd take their C6 Vette to a Jiffy Lube type place shouldn't have shut a car. A good lubricating system is the key to survival for any hi-pro hi-rev'n engine and having +10 qts is pure gold for heat dissipation and lubricity longevity. Most experienced trackers keep them at 9.5 to 10 qts, which is plenty and much better then possibly over servicing it passed 10.5 qts (bad!).

Yes - All LS3s in a C6 GS M6 have Forged crank shafts. The LS3 bottom end is rock solid, with countless blower builds seeing +800 rwhp. And no, not all have the dry sump, and yea they survive just fine, although their oil is pretty chewed up in 2K-3K miles vs a 10.5 qt system.

Also remember; Oil FLOW is more important than oil pressure. Thus using 20w-50 racing oil is fine in a race engine where bearing clearances are more open vs the tight tolerance LS3. And all of this commentary isn't absolute, but preferred. You can run 20w-50 oil and see amazing oil pressure, but it's flowing more like sticky honey... not good.

All just my opinion in an effort to help out, and not trying to burn anyone or sound like a know it all....