I've made my decision on engine

[Panoz26]

Well, I have committed to purchase:

Ls3InCar.jpg

Ls3.jpg

ls3odometer.jpg

Ls3pic.jpg

Just need to finalize payment - wait for it to arrive - sell of the intake and stuff -- order a few things and away we go.

Devin

[panozracing]

[Gatorac]

I have heard some bad things about the LS3 and road racing. I would plan on a dry sump right from the start if I were me.

[Panoz26]

Originally Posted by Gatorac

I have heard some bad things about the LS3 and road racing. I would plan on a dry sump right from the start if I were me.

Jim besides the oil pan -- what other bad things have you heard?
Devin

[Gatorac]

I frequent this forum http://forums.corvetteforum.com/auto...cing-23/?id=23
If you do a search on there you should find it. Some of the T1 guys couldn't get the LS3 to last a full race. It was enough to chase me away from an LS3 for a track car engine.

[Panoz26]

Originally Posted by Gatorac

I frequent this forum http://forums.corvetteforum.com/auto...cing-23/?id=23
If you do a search on there you should find it. Some of the T1 guys couldn't get the LS3 to last a full race. It was enough to chase me away from an LS3 for a track car engine.

Yea, OK... I did the same thing with my LS1.....

I plan on purchasing the LS-B Avaiaid Dry Sump System before heading out for a serious day at the track.

Other than that, I don't see any issues with the LS3 Motor.

Devin

[eric1h]

Dry sump or accusump is a MUST!!!

http://forums.corvetteforum.com/auto...l-in-scca.html

[David Eastman]

Devin, are you going to have this on the road for Triangle Z at CMP in June?

[Panoz26]

Originally Posted by David Eastman

Devin, are you going to have this on the road for Triangle Z at CMP in June?

David,
Since that's where she blew -- I am going to do everything I can. If I can get the dry sump purchased and installed - def - yes.

My wife is not happy at the moment - another 2K on an oil system may take her over the edge...

Anyone willing to take money on a weekly basis so I can hide my transactions and then order when we are whole? J/K

Devin

[David Eastman]

You are talking my language taking weekly payment is what I do best. I am not in the tool business I am in the collecting buisness. I just sell tools to collect money.

[Panoz26]

Originally Posted by David Eastman

You are talking my language taking weekly payment is what I do best. I am not in the tool business I am in the collecting buisness. I just sell tools to collect money.

I sell datacenter solutions.... know anyone needing assistance with a large consolidation/refresh/design?

[eric1h]

Devin, get a good pan(or modify the moroso with better baffling) and an accusump and run it until you can save your pennys...

The accsusump seems to be working fine and it gives you 10-15 seconds of oil reserve to prevent starvation. has worked well for me so far.

[NZGTRA17]

Originally Posted by Gatorac

I frequent this forum http://forums.corvetteforum.com/auto...cing-23/?id=23
If you do a search on there you should find it. Some of the T1 guys couldn't get the LS3 to last a full race. It was enough to chase me away from an LS3 for a track car engine.

Jim, in the feedback around the LS3 have you come across any good technical reasons why it has oil problems compared to say the LS1 or LS2? I see that the stroke is the same in all engines (3.62") but the bore size has been enlarjed with each subsequent version.

What else has been changed to make the LS3 more susceptable to oiling issues? I could understand this if the engine had a longer stroke affecting windage in the pan or the pan on the LS3 was inferior. Is the Corvette chassis just getting better to the stage that a wet sump is no longer cutting the mustard? Whats changed?

Kel.

[Gatorac]

Originally Posted by NZGTRA17

Jim, in the feedback around the LS3 have you come across any good technical reasons why it has oil problems compared to say the LS1 or LS2? I see that the stroke is the same in all engines (3.62") but the bore size has been enlarjed with each subsequent version.

What else has been changed to make the LS3 more susceptable to oiling issues? I could understand this if the engine had a longer stroke affecting windage in the pan or the pan on the LS3 was inferior. Is the Corvette chassis just getting better to the stage that a wet sump is no longer cutting the mustard? Whats changed?

Kel.

I don't have the answers. The T1 class in SCCA is where the Corvette runs. When the LS3 came out some of the top drivers had major issues with getting them to last.

Here is some good reading on the issues with replies from those that have experience. http://forums.corvetteforum.com/auto...es-or-not.html I haven't read some of the latest posts on that thread. I've already eliminated the LS3 for my Panoz.

It seems as though it's enough of a concern to avoid the LS3 unless you are doing a dry sump set up from the start. It could just be the Corvette pan but there are enough other options to not risk it IMHO. It makes a fine motor in my wife's daily driver Corvette though.

[Gatorac]

This is from post #14

I'm not an engine guy so I don't know all the issues with the LS2 and 3 internally, but I do know they load up the Right side head full of oil and a bunch of it gets puked into the intake. The oil simply doesn't drain down enough to feed the oil pickup tube. This has the biggest effect/affect on left turns.

The other big problem they saw especially with the LS3 is blow-by. The explosion within the cylinder literally passes by the rings and superheats the oil causing those ultra high oil temps. We saw over 330 even with a cooler. GM came up with a stacked cooler in series that kept it below 300. Without a dry sump, you'll most likely have do some type of cooler stacking to keep the temps below 300. If you have an LS3 and haven't seen those temps yet, it's because you aren't driving hard enough. It will get there!

My current oil cooler is enormous...a Setrab I think...12x12 or 12x16...whatever the biggest one they make...sitting right in front of the radiator to get a direct shot of cool air. The dry sump seems to limit the blow by some and helps to keep the oil cooler too. From what I've seen with this engine, you simply cannot get a big enough oil cooler...especially if you live in the south!