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Search took 0.01 seconds. Search: Posts Made By: ls2gto
Forum: Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons 09-07-2009, 04:11 PM
Replies: 30
Views: 4,640
Posted By ls2gto
As mentioned in my pm, the first engine was...

As mentioned in my pm, the first engine was diagnosed with no coolant in the block and the TSB says severe overheat can damage the converter material. In any event, the guy is supposed to know more...
Forum: Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons 09-07-2009, 02:58 PM
Replies: 30
Views: 4,640
Posted By ls2gto
Yer not reading the whole story. Read the post...

Yer not reading the whole story. Read the post directly above yours. Reversion at high RPM is a non-issue, I completely agree. Close-coupled cats are also not 4 feet from the exhaust manifold, they...
Forum: Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons 09-07-2009, 01:49 PM
Replies: 30
Views: 4,640
Posted By ls2gto
Here's a post from the G8 board that may also be...

Here's a post from the G8 board that may also be of interest:

It is a totally plausible explanation for the failure.

Exhaust gas reversion from the exh side will happen at very low rpm and on...
Forum: Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons 09-07-2009, 12:26 PM
Replies: 30
Views: 4,640
Posted By ls2gto
Yeah, that was my point. There's no reason to...

Yeah, that was my point. There's no reason to make this up that makes sense to me.
Forum: Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons 09-07-2009, 12:19 PM
Replies: 30
Views: 4,640
Posted By ls2gto
You are referring to exhaust scavenging which...

You are referring to exhaust scavenging which occurs during the first part of overlap when the piston is still on the exhaust upstroke. Reversion occurs after the piston passes TDC and is on the...
Forum: Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons 09-07-2009, 10:32 AM
Replies: 30
Views: 4,640
Posted By ls2gto
By the way, there are countless hits on the web...

By the way, there are countless hits on the web dealing with this issue. Here's a thread about the problem with Altimas in which cat debris is sucked into the engine and damages the cylinder walls:
...
Forum: Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons 09-07-2009, 03:13 AM
Replies: 30
Views: 4,640
Posted By ls2gto
I have both an engineering degree and a law...

I have both an engineering degree and a law degree. The engineer in me says I do not know enough about the physics involved to have a valid opinion, but the explanation at least sounds plausible. I...
Forum: Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons 09-06-2009, 01:56 PM
Replies: 30
Views: 4,640
Posted By ls2gto
GM's engineers do not agree, but then again,...

GM's engineers do not agree, but then again, maybe they are smoking exhaust fumes. Check out the TSB at post 126 in the thread:
Forum: Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons 09-06-2009, 12:52 PM
Replies: 30
Views: 4,640
Posted By ls2gto
No, the theory is valid- it is called "reversion"...

No, the theory is valid- it is called "reversion" and occurs during the overlap period when both the intake and exhaust valves are open on the piston down stroke. Anti-reversion headers are used to...
Forum: Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons 09-06-2009, 12:12 PM
Replies: 30
Views: 4,640
Posted By ls2gto
LS3 Seizes in GXP

Check out this horror story over at the G8 board. A GXP LS3 A6 seizes at 2300 miles. The dealer is not sure why but suspects a cracked block. Now things get even worse. The dealer replaces the engine...
Forum: Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons 08-27-2009, 10:18 PM
Replies: 2,837
Views: 1,124,135
Posted By ls2gto
Yeah my guess is that more than just the octane...

Yeah my guess is that more than just the octane is involved here, but it all gets corrected, at least for a while, by the fuse pull.
Forum: Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons 08-27-2009, 09:23 PM
Replies: 2,837
Views: 1,124,135
Posted By ls2gto
That's what still does not make sense to me. 87...

That's what still does not make sense to me. 87 is only supposed to reduce the acceleration slightly not significantly AND using 87, if it is all you can find, is not supposed to require reset of the...
Forum: Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons 08-26-2009, 09:51 PM
Replies: 2,837
Views: 1,124,135
Posted By ls2gto
Darn, I was going to challenge you to a race...

Darn, I was going to challenge you to a race against my G8 but now you've gone and added 100 hp!!

Seriously, now even I am waiting to see what happens since you are more skeptical than most.
Forum: Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons 08-26-2009, 09:44 PM
Replies: 2,837
Views: 1,124,135
Posted By ls2gto
LS3 did not come out until 2008. The 07 Vette...

LS3 did not come out until 2008. The 07 Vette still had an LS2.

Okay on the Scott issue- it would be nice to know what Fbodfather has to say about all this though.
Forum: Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons 08-26-2009, 08:26 PM
Replies: 2,837
Views: 1,124,135
Posted By ls2gto
2007 Vette had an LS2, not the L99 which is only...

2007 Vette had an LS2, not the L99 which is only available in the 2010 Camaro.
Forum: Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons 08-26-2009, 07:58 PM
Replies: 2,837
Views: 1,124,135
Posted By ls2gto
Okay, now you have me con-fuse-d and that is...

Okay, now you have me con-fuse-d and that is intended to be a pun. If Scott S. specifically told you to pull the fuses and not disconnect the battery, then I assume there is a capacitor that holds...
Forum: Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons 08-26-2009, 04:25 PM
Replies: 2,837
Views: 1,124,135
Posted By ls2gto
There's another good point- the temps here in DC...

There's another good point- the temps here in DC lately have been in the 90's and I see lots of people from way south of here on the board. High temps inherently reduce power anyway but the computers...
Forum: Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons 08-26-2009, 02:45 PM
Replies: 2,837
Views: 1,124,135
Posted By ls2gto
[QUOTE=radz282003;846892]I've been thinking about...

[QUOTE=radz282003;846892]I've been thinking about this too; I guess we'll all find out. I suppose, as long as GM is working on this, this simple procedure isn't too big a deal to do...
Forum: Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons 08-26-2009, 02:17 PM
Replies: 2,837
Views: 1,124,135
Posted By ls2gto
I know but I have an EE degree with a computer...

I know but I have an EE degree with a computer background and just am a little skeptical of the fix as my smart ass remark in my post above indicates. For example, what if everyone's knock sensor is...
Forum: Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons 08-26-2009, 02:00 PM
Replies: 2,837
Views: 1,124,135
Posted By ls2gto
PS I hate to bring this up but the fact that...

PS

I hate to bring this up but the fact that the computer slowly adapts to various inputs over time makes me wonder if inputs that are not octane related are part of the problem. As in, will the...
Forum: Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons 08-26-2009, 01:42 PM
Replies: 2,837
Views: 1,124,135
Posted By ls2gto
It makes sense that your computer was behaving...

It makes sense that your computer was behaving that way but that is precisely what is wrong. It does not make sense to even waste time with 2 octane tables if the engine cannot adapt in both...
Forum: Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons 08-25-2009, 11:24 PM
Replies: 2,837
Views: 1,124,135
Posted By ls2gto
Maybe they have not figured out what is wrong...

Maybe they have not figured out what is wrong yet. Like HPTuners says, the engines are supposed to adapt to knock conditions over time, but that does not appear to be happening with the problem cars....
Forum: Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons 08-25-2009, 09:32 PM
Replies: 2,837
Views: 1,124,135
Posted By ls2gto
If you have about $500 sitting around and a lap...

If you have about $500 sitting around and a lap top, you too can access your ECM and change things around to your heart's content (not a good idea actually unless you really know what you are doing)....
Forum: Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons 06-28-2009, 12:06 PM
Replies: 105
Views: 9,115
Posted By ls2gto
Someone mentioned VVT might not be working. If it...

Someone mentioned VVT might not be working. If it is stuck in cam advance mode for a smooth idle, but will not go to retard mode at high RPM, you could lose a bunch of hp up top. My 05 CTS had VVT...
Forum: 5th Gen Camaro SS LS LT General Discussions 06-22-2009, 08:58 PM
Replies: 31
Views: 4,111
Posted By ls2gto
Thanks. By the way, nice collection of vehicles...

Thanks. By the way, nice collection of vehicles you got there. How's the G8GT compare to the SS? As I said in a post above, GM is baiting me with 7 grand if I buy a G8 this month. Of course, that...
Forum: 5th Gen Camaro SS LS LT General Discussions 06-22-2009, 04:37 PM
Replies: 31
Views: 4,111
Posted By ls2gto
Yeah, the trans is what I really want. You're...

Yeah, the trans is what I really want. You're right about the dead spots in the A4, but I juggled the shift speeds with HPTuners to help fix that at least a bit. That being said, I drove a G8GT 6.0...
Forum: 5th Gen Camaro SS LS LT General Discussions 06-22-2009, 03:51 PM
Replies: 31
Views: 4,111
Posted By ls2gto
Thanks. I was going to say, the GTO does...

Thanks.

I was going to say, the GTO does have a 400 hp 6.0 LS2, so there is no way the LT will hang with it in a straight line. That being said, I had a 2005 3.6L V6 CTS that had much better...
Forum: 5th Gen Camaro SS LS LT General Discussions 06-22-2009, 09:18 AM
Replies: 31
Views: 4,111
Posted By ls2gto
Ex GTO Owners- How does the SS compare?

I have a 2005 A4 GTO and am thinking of trading it in on an L99 SS. I note a lot of people on the forum appear to have also owned GTOs. How does the Camaro compare overall? I have not had a chance to...
Forum: 5th Gen Camaro SS LS LT General Discussions 06-22-2009, 08:13 AM
Replies: 100
Views: 14,103
Posted By ls2gto
Trashy? If my Lexus LS 460 is trashy, then I...

Trashy? If my Lexus LS 460 is trashy, then I guess my 05 GTO is a flat out piece of junk (which it is not by the way). The Lexus is also the smoothest riding car I have ever driven and is damn near...
Forum: Dragstrip and Launch Techniques Discussion 06-21-2009, 01:18 PM
Replies: 161
Views: 27,568
Posted By ls2gto
You're right, 72 mph in the 1/8th definitely is...

You're right, 72 mph in the 1/8th definitely is not normal. The one time I ran my 99 SS M6 at the strip, I babied it off the line just above idle and ran something like 9.10 @ 81 in the 1/8th,...
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